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Patrick PG, Rahman A. Biodiversity conservation, human-animal interactions, and zootherapy in ecological knowledge of Indonesian Healers. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024:e14278. [PMID: 38682639 DOI: 10.1111/cobi.14278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 02/06/2024] [Accepted: 02/15/2024] [Indexed: 05/01/2024]
Abstract
We examined the entanglement of biodiversity conservation, human-animal interactions, zootherapy, and local beliefs among Sumatran Healers and their local community by completing an ethnography of 43 Indigenous Healers across 8 tribes in Bengkulu Province, Sumatra, Indonesia. Data collection tools were interviews, observations, videos, photographs, and a researcher journal. Of the 43 Healers, 30 used animals and mentioned 62 species. Of the animals identified, the International Union for Conservation of Nature Red List lists 34% (n = 21) as endangered, decreasing, or vulnerable, including Sumatran tiger (Panthera tigris sumatrae), Sumatran elephant (Elephas maximus sumatranus), and Sumatran rhinoceros (Dicerorhinus sumatrensis). Of the 30 Healers using animals, 50% (n = 15) practiced healing with at least one endangered, decreasing, or vulnerable animal. We defined 3 personas: Healer self-persona, Healer-imposed persona, and community-imposed persona. A persona represented a group's opinions and sentiments related to Healers killing animals for medicinal purposes. Using an iterative data analysis process, we grouped the data across the 3 personas into 5 themes: ease of killing and preparing animals, emotions related to killing animals, animal value, relationship to religion, and Healers are tricksters. The complexity of merging the identities of Healers and the community within an actor-network embodies the relationality of actions, interactions, and feelings among Healers, between Healers and animals, and between Healers and the community. Conservationists should be cognizant of Healers' medicinal use of animals, views of human-animal interactions, and zootherapy from all social and emotional perspectives. The data led to defining Indigenous Healer ecological knowledge components of zootherapy, human-animal interactions, and biodiversity conservation.
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Affiliation(s)
- Patricia G Patrick
- College of Education and Health Professions, Columbus State University, Columbus, Georgia, USA
| | - Abdul Rahman
- Pendidikan Biologi, Universitas Bengkulu, Bengkulu, Indonesia
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2
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Lee SXT, Amir Z, Moore JH, Gaynor KM, Luskin MS. Effects of human disturbances on wildlife behaviour and consequences for predator-prey overlap in Southeast Asia. Nat Commun 2024; 15:1521. [PMID: 38374248 PMCID: PMC10876642 DOI: 10.1038/s41467-024-45905-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
Some animal species shift their activity towards increased nocturnality in disturbed habitats to avoid predominantly diurnal humans. This may alter diel overlap among species, a precondition to most predation and competition interactions that structure food webs. Here, using camera trap data from 10 tropical forest landscapes, we find that hyperdiverse Southeast Asian wildlife communities shift their peak activity from early mornings in intact habitats towards dawn and dusk in disturbed habitats (increased crepuscularity). Our results indicate that anthropogenic disturbances drive opposing behavioural adaptations based on rarity, size and feeding guild, with more nocturnality among the 59 rarer specialists' species, more diurnality for medium-sized generalists, and less diurnality for larger hunted species. Species turnover also played a role in underpinning community- and guild-level responses, with disturbances associated with markedly more detections of diurnal generalists and their medium-sized diurnal predators. However, overlap among predator-prey or competitor guilds does not vary with disturbance, suggesting that net species interactions may be conserved.
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Affiliation(s)
- Samuel Xin Tham Lee
- School of the Environment, University of Queensland, Brisbane, QLD, Australia
| | - Zachary Amir
- School of the Environment, University of Queensland, Brisbane, QLD, Australia
| | - Jonathan H Moore
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China
- School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
| | - Kaitlyn M Gaynor
- Departments of Zoology and Botany, University of British Columbia, Vancouver, BC, Canada
| | - Matthew Scott Luskin
- Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA.
- Centre for Biodiversity and Conservation Science, University of Queensland, Brisbane, QLD, Australia.
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Ng JSC, Chervier C, Carmenta R, Samdin Z, Azhar B, Karsenty A. Balancing Ambitions and Realities: Stakeholder Perspectives on Jurisdictional Approach Outcomes in Sabah's Forests. ENVIRONMENTAL MANAGEMENT 2024; 73:259-273. [PMID: 37667018 DOI: 10.1007/s00267-023-01876-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/24/2023] [Indexed: 09/06/2023]
Abstract
The jurisdictional approach concept emerged in response to the widespread failure of sectoral forest conservation projects. Despite its increasing popularity, understanding jurisdictional approach outcomes is challenging, given that many remain in either the formation or implementation stage. Furthermore, diverse stakeholders hold different perspectives on what exactly a jurisdictional approach is intended to pursue. These different perspectives are important to unravel, as having a shared understanding of the outcomes is important to build the critical support needed for it. This study aims to add to the limited evidence with a case study in Sabah, Malaysia, which is committed to addressing a leading deforestation driver (palm oil) through sustainability certification in a jurisdiction. We used Q-methodology to explore stakeholder perceptions, revealing three distinct perspectives regarding what outcomes jurisdictional approaches should pursue. We asked about outcomes achievable within ten years (2022-2032) and considering real-world constraints. We found different perspectives regarding economic, environmental, governance, and smallholders' welfare outcomes. However, we found consensus among stakeholders about some outcomes: (i) that achieving zero-deforestation is untenable, (ii) that issuing compensation or incentives to private land owners to not convert forests into plantations is unrealistic, (iii) that the human well-being of plantation workers could improve through better welfare, and (iv) the free, prior and informed consent given by local communities being required legally. The findings offer insights into key stakeholders' perceptions of the deliverables of jurisdictional approaches and the difficulty of achieving its objectives under real-world constraints.
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Affiliation(s)
- Julia Su Chen Ng
- University Putra Malaysia, Serdang, Selangor, Malaysia.
- ABIES Doctoral School, AgroParisTech, Palaiseau, France.
| | - Colas Chervier
- Centre de Coop´eration Internationale en Recherche Agronomique pour le D´eveloppement (CIRAD), UR Forests and Societies, Environnements et Soci´et´es, Montpellier, France
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
| | - Rachel Carmenta
- School of International Development, University of East Anglia, Norwich, UK
| | - Zaiton Samdin
- University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Badrul Azhar
- University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Alain Karsenty
- Centre de Coop´eration Internationale en Recherche Agronomique pour le D´eveloppement (CIRAD), UMR SENS, Montpellier, France
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Gajendiran K, Kandasamy S, Narayanan M. Influences of wildfire on the forest ecosystem and climate change: A comprehensive study. ENVIRONMENTAL RESEARCH 2024; 240:117537. [PMID: 37914016 DOI: 10.1016/j.envres.2023.117537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/23/2023] [Accepted: 10/27/2023] [Indexed: 11/03/2023]
Abstract
Wildfires have complex impacts on forests, including changes in vegetation, threats to biodiversity, and emissions of greenhouse gases like carbon dioxide, which exacerbate climate change. The influence of wildfires on animal habitats is particularly noteworthy, as they can lead to significant changes in native environments. The extent of these alterations in species and habitats plays a crucial role in shaping forest ecology. Drought, disease, insect infestations, overgrazing, or their combined effects can amplify the negative effects on specific plant genera and entire ecosystems. In addition to the immediate consequences of plant mortality and altered community dynamics, forest fires have far-reaching implications. They often increase flowering and seed production, further influencing ecological communities. However, one concerning trend is the decline in the diversity of forest biological species within fire-affected areas. Beyond their ecological impacts, wildfires emit substantial quantities of greenhouse gases and fine particulates into the atmosphere, triggering profound changes in climate patterns and contributing to global warming. As vegetation burns during these fires, the carbon stored within is released, rendering large forest fires detrimental to biodiversity and the emission of CO2, a significant contributor to global warming. Measuring the global impact of wildfires on ecological communities and greenhouse gas emissions has become increasingly vital. These research endeavors shed light on the intricate relationships and feedback loops linking wildfires, ecosystem inhabitants, and the evolving climate landscape.
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Affiliation(s)
- Kandasamy Gajendiran
- Department of Microbiology, M.G.R. College of Arts and Science, Hosur, Krishnagiri, Tamil Nadu, India
| | - Sabariswaran Kandasamy
- Department of Biotechnology, PSGR Krishnammal College for Women, Peelamedu, Coimbatore, 641004, India
| | - Mathiyazhagan Narayanan
- Division of Research and Innovations, Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science, Chennai, 602105, Tamil Nadu, India.
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Ko JCJ, Chang AY, Lin RS, Lee PF. Deforestation within breeding ranges may still drive population trends of migratory forest birds in the East Asian Flyway. Sci Rep 2023; 13:14007. [PMID: 37635179 PMCID: PMC10460791 DOI: 10.1038/s41598-023-40626-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023] Open
Abstract
The East Asian Flyway (EAF) is the most species diverse of global flyways, with deforestation in its migratory landbird's non-breeding range suspected to be the main driver of population decline. Yet range-wide habitat loss impact assessments on EAF migratory landbirds are scarce, and seasonal variation in habitat preference of migratory species further increases the complexity for conservation strategies. In this study, we reviewed population trends of migratory forest breeding birds in the EAF along with their seasonal habitat preference from the literature and assessed the impact of forest cover change in species' breeding and non-breeding ranges on population trends. We found that 41.3% of the bird species with trend data available are declining, and most have higher forest preference in the breeding season. Despite 93.4% of the species experienced deforestation throughout their annual cycle, forest cover change in the non-breeding range was not identified as the main driver of population trend. However, forest cover change in species' regional breeding range interacts positively with the degree of breeding season forest preference in predicting population trends. We therefore stress that regional breeding habitat protection may still be important while following the call for cross-border collaboration to fill the information gap for flyway conservation.
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Affiliation(s)
- Jerome Chie-Jen Ko
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 106216, Taiwan
| | - An-Yu Chang
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
| | - Ruey-Shing Lin
- Taiwan Biodiversity Research Institute, Nantou, 552002, Taiwan
| | - Pei-Fen Lee
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 106216, Taiwan.
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Shiraishi T, Hirata R, Hayashi M, Hirano T. Carbon dioxide emissions through land use change, fire, and oxidative peat decomposition in Borneo. Sci Rep 2023; 13:13067. [PMID: 37567930 PMCID: PMC10421864 DOI: 10.1038/s41598-023-40333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023] Open
Abstract
Borneo has accumulated an abundance of woody carbon in its forests and peat. However, agricultural land conversion accompanied by plantation development, dead wood burning, and peat drying from drainage are major challenges to climate change mitigation. This study aimed to develop a method of estimating carbon dioxide (CO2) emissions from land use change, forest and peat fires, and oxidative peat decomposition, and CO2 uptake from biomass growth across Borneo using remote sensing data from 2001 to 2016. Although CO2 uptake by biomass growth in vast forests has shown a significant increasing trend, an annual net release of 461.10 ± 436.51 (average ± 1 standard deviation) Tg CO2 year-1 was observed. The estimated emissions were predominantly characterized by land use changes from 2001 to 2003, with the highest emissions in 2001. Land use change was evaluated from annual land use maps with an accuracy of 92.0 ± 1.0% (average ± 1 standard deviation). Forest and peat fires contributed higher emissions in 2002, 2006, 2009, 2014, and 2015 compared to other years and were strongly correlated with the Southern Oscillation Indexes. These results suggest that more CO2 may have been released into the atmosphere than previously thought.
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Affiliation(s)
- Tomohiro Shiraishi
- Earth System Division, National Institute for Environmental Studies (NIES), Ibaraki, 305-8506, Japan.
- School of Engineering, Nippon Bunri University, Oita, 870-0397, Japan.
| | - Ryuichi Hirata
- Earth System Division, National Institute for Environmental Studies (NIES), Ibaraki, 305-8506, Japan
| | - Masato Hayashi
- Earth Observation Research Center, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan
| | - Takashi Hirano
- Research Faculty of Agriculture, Hokkaido University, Hokkaido, 060-8589, Japan
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Klim H, William T, Chua TH, Rajahram GS, Drakeley CJ, Carroll MW, Fornace KM. Quantifying human-animal contact rates in Malaysian Borneo: Influence of agricultural landscapes on contact with potential zoonotic disease reservoirs. FRONTIERS IN EPIDEMIOLOGY 2023; 2:1057047. [PMID: 38455308 PMCID: PMC10910987 DOI: 10.3389/fepid.2022.1057047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/28/2022] [Indexed: 03/09/2024]
Abstract
Changing landscapes across the globe, but particularly in Southeast Asia, are pushing humans and animals closer together and may increase the likelihood of zoonotic spillover events. Malaysian Borneo is hypothesized to be at high risk of spillover events due to proximity between reservoir species and humans caused by recent deforestation in the region. However, the relationship between landscape and human-animal contact rates has yet to be quantified. An environmentally stratified cross-sectional survey was conducted in Sabah, Malaysia in 2015, collecting geolocated questionnaire data on potential risk factors for contact with animals for 10,100 individuals. 51% of individuals reported contact with poultry, 46% with NHPs, 30% with bats, and 2% with swine. Generalised linear mixed models identified occupational and demographic factors associated with increased contact with these species, which varied when comparing wildlife to domesticated animals. Reported contact rates with each animal group were integrated with remote sensing-derived environmental data within a Bayesian framework to identify regions with high probabilities of contact with animal reservoirs. We have identified high spatial heterogeneity of contact with animals and clear associations between agricultural practices and high animal rates. This approach will help inform public health campaigns in at-risk populations and can improve pathogen surveillance efforts on Malaysian Borneo. This method can additionally serve as a framework for researchers looking to identify targets for future pathogen detection in a chosen region of study.
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Affiliation(s)
- Hannah Klim
- Wellcome Centre for Human Genetics and Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Future of Humanity Institute, Faculty of Philosophy, University of Oxford, Oxford, United Kingdom
| | - Timothy William
- Infectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit, Kota Kinabalu, Malaysia
- Gleneagles Hospital, Kota Kinabalu, Malaysia
- Clinical Research Centre, Queen Elizabeth II Hospital, Kota Kinabalu, Malaysia
| | - Tock H. Chua
- Faculty of Medicine and Health Sciences, University of Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Giri S. Rajahram
- Clinical Research Centre, Queen Elizabeth II Hospital, Kota Kinabalu, Malaysia
| | - Chris J. Drakeley
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Miles W. Carroll
- Wellcome Centre for Human Genetics and Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Kimberly M. Fornace
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
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Rum IA, Tukker A, de Koning A, Yusuf AA. Impact assessment of the EU import ban on Indonesian palm oil: Using environmental extended multi-scale MRIO. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158695. [PMID: 36099960 DOI: 10.1016/j.scitotenv.2022.158695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Under the Renewable Energy Directive (RED) II, the EU will phase out the use of palm oil for biodiesel feedstock. Environmental concerns are the main reasons for the EU to implement this initiative. This study analyzes the economic and environmental impact of EU import ban to Indonesia at provincial level, using 2 scenarios (a direct and direct-indirect import ban). The analysis is performed using a global-subnational Multi-Regional Input-Output (MRIO) with environmental extensions. This study shows that a direct (combined) import ban of palm oil by the EU will reduce Indonesia's GDP by -0.2 % (-0.26 %) and employment by -0.12 % (-0.54 %) from baseline. At provincial level, Riau, North Sumatra, Lampung, Central Kalimantan and South Kalimantan experience the highest impact on their domestic product (more than -0.5 %). Under a direct import ban, job losses mostly happen in outside Java (96.26 %) and in the oilseeds sector (75.21 %). Low and middle skilled jobs decline more than high skilled jobs and count for 95 % of the total loss. This study also shows that a direct (combined) import ban reduces national GHG emissions by -0.19 % (-0.24 %) and total land use by -0.48 % (-0.6 %). Potential carbon sequestration can be 34.55 (42.27) million tons C equivalent to 149.74 (182.67) million tons CO2e under assumption a full rewilding from the reduction of land use in oilseed. Our study shows that an EU import ban on Indonesian palm oil has relatively small economic and environmental impacts at national and provincial level. Yet, this policy can create potential carbon sequestration that can absorb CO2 by vegetation and soil.
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Affiliation(s)
- Irlan A Rum
- Institute of Environmental Science (CML), Leiden University, Leiden, Netherlands; Department of Economics, Universitas Padjadjaran, Bandung, Indonesia.
| | - Arnold Tukker
- Institute of Environmental Science (CML), Leiden University, Leiden, Netherlands; Netherlands Organization for Applied Scientific Research TNO, Den Haag, Netherlands
| | - Arjan de Koning
- Institute of Environmental Science (CML), Leiden University, Leiden, Netherlands
| | - Arief A Yusuf
- Department of Economics, Universitas Padjadjaran, Bandung, Indonesia
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A survey of simian Plasmodium infections in humans in West Kalimantan, Indonesia. Sci Rep 2022; 12:18546. [PMID: 36329096 PMCID: PMC9633791 DOI: 10.1038/s41598-022-21570-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022] Open
Abstract
The simian parasite Plasmodium knowlesi is the predominant species causing human malaria infection, including hospitalisations for severe disease and death, in Malaysian Borneo. By contrast, there have been only a few case reports of knowlesi malaria from Indonesian Borneo. This situation seems paradoxical since both regions share the same natural macaque hosts and Anopheles mosquito vectors, and therefore have a similar epidemiologically estimated risk of infection. To determine whether there is a true cross-border disparity in P. knowlesi prevalence, we conducted a community-based malaria screening study using PCR in Kapuas Hulu District, West Kalimantan. Blood samples were taken between April and September 2019 from 1000 people aged 6 months to 85 years attending health care facilities at 27 study sites within or close to jungle areas. There were 16 Plasmodium positive samples by PCR, five human malarias (two Plasmodium vivax, two Plasmodium ovale and one Plasmodium malariae) and 11 in which no species could be definitively identified. These data suggest that, if present, simian malarias including P. knowlesi are rare in the Kapuas Hulu District of West Kalimantan, Indonesian Borneo compared to geographically adjacent areas of Malaysian Borneo. The reason for this discrepancy, if confirmed in other epidemiologically similar regions of Indonesian Borneo, warrants further studies targeting possible cross-border differences in human activities in forested areas, together with more detailed surveys to complement the limited data relating to monkey hosts and Anopheles mosquito vectors in Indonesian Borneo.
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Spatio-temporal distribution and hotspots of Plasmodium knowlesi infections in Sarawak, Malaysian Borneo. Sci Rep 2022; 12:17284. [PMID: 36241678 PMCID: PMC9568661 DOI: 10.1038/s41598-022-21439-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 09/27/2022] [Indexed: 01/10/2023] Open
Abstract
Plasmodium knowlesi infections in Malaysia are a new threat to public health and to the national efforts on malaria elimination. In the Kapit division of Sarawak, Malaysian Borneo, two divergent P. knowlesi subpopulations (termed Cluster 1 and Cluster 2) infect humans and are associated with long-tailed macaque and pig-tailed macaque hosts, respectively. It has been suggested that forest-associated activities and environmental modifications trigger the increasing number of knowlesi malaria cases. Since there is a steady increase of P. knowlesi infections over the past decades in Sarawak, particularly in the Kapit division, we aimed to identify hotspots of knowlesi malaria cases and their association with forest activities at a geographical scale using the Geographic Information System (GIS) tool. A total of 1064 P. knowlesi infections from 2014 to 2019 in the Kapit and Song districts of the Kapit division were studied. Overall demographic data showed that males and those aged between 18 and 64 years old were the most frequently infected (64%), and 35% of infections involved farming activities. Thirty-nine percent of Cluster 1 infections were mainly related to farming surrounding residential areas while 40% of Cluster 2 infections were associated with activities in the deep forest. Average Nearest Neighbour (ANN) analysis showed that humans infected with both P. knowlesi subpopulations exhibited a clustering distribution pattern of infection. The Kernel Density Analysis (KDA) indicated that the hotspot of infections surrounding Kapit and Song towns were classified as high-risk areas for zoonotic malaria transmission. This study provides useful information for staff of the Sarawak State Vector-Borne Disease Control Programme in their efforts to control and prevent zoonotic malaria.
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Zhang X, Li Y, Yan H, Cai K, Li H, Wu Z, Wu J, Yang X, Jiang H, Wang Q, Qu G, Zhao X. Integrated metabolomic and transcriptomic analyses reveal different metabolite biosynthesis profiles of Juglans mandshurica in shade. FRONTIERS IN PLANT SCIENCE 2022; 13:991874. [PMID: 36237500 PMCID: PMC9552962 DOI: 10.3389/fpls.2022.991874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Light is not only a very important source of energy for the normal growth and development of plants, but also a regulator of many development and metabolic processes. The mechanism of plant growth and development under low light conditions is an important scientific question. With the promulgation of the law to stop natural forest cutting, understory regeneration is an important method for artificial forest afforestation. Here, the growth and physiological indexes of Juglans mandshurica, an important hardwood species in Northeast China, were measured under different shade treatments. In addition, transcriptome and metabolome were compared to analyze the molecular mechanism of shade tolerance in J. mandshurica. The results showed that the seedling height of the shade treatment group was significantly higher than that of the control group, and the 50% light (L50) treatment was the highest. Compared with the control group, the contents of gibberellin, abscisic acid, brassinolide, chlorophyll a, and chlorophyll b in all shade treatments were significantly higher. However, the net photosynthetic rate and water use efficiency decreased with increasing shade. Furthermore, the transcriptome identified thousands of differentially expressed genes in three samples. Using enrichment analysis, we found that most of the differentially expressed genes were enriched in photosynthesis, plant hormone signal transduction and chlorophyll synthesis pathways, and the expression levels of many genes encoding transcription factors were also changed. In addition, analysis of differentially accumulated metabolites showed that a total of 470 differential metabolites were identified, and flavonoids were the major differential metabolites of J. mandshurica under light stress. These results improved our understanding of the molecular mechanism and metabolite accumulation under light stress in J. mandshurica.
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Affiliation(s)
- Xinxin Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- Jilin Provincial Key Laboratory of Tree and Grass Genetics and Breeding, College of Forestry and Grassland Science, Jilin Agricultural University, Changchun, China
| | - Yuxi Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Huiling Yan
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Kewei Cai
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Hanxi Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Zhiwei Wu
- Scientific Research Center of Harbin Forestry and Grassland Bureau, Harbin, China
| | - Jianguo Wu
- Daquanzi Forest Station in Binxian County, Harbin, China
| | - Xiangdong Yang
- Daquanzi Forest Station in Binxian County, Harbin, China
| | - Haichen Jiang
- Daquanzi Forest Station in Binxian County, Harbin, China
| | - Qingcheng Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Guanzheng Qu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Xiyang Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- Jilin Provincial Key Laboratory of Tree and Grass Genetics and Breeding, College of Forestry and Grassland Science, Jilin Agricultural University, Changchun, China
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Pendrill F, Gardner TA, Meyfroidt P, Persson UM, Adams J, Azevedo T, Bastos Lima MG, Baumann M, Curtis PG, De Sy V, Garrett R, Godar J, Goldman ED, Hansen MC, Heilmayr R, Herold M, Kuemmerle T, Lathuillière MJ, Ribeiro V, Tyukavina A, Weisse MJ, West C. Disentangling the numbers behind agriculture-driven tropical deforestation. Science 2022; 377:eabm9267. [PMID: 36074840 DOI: 10.1126/science.abm9267] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Tropical deforestation continues at alarming rates with profound impacts on ecosystems, climate, and livelihoods, prompting renewed commitments to halt its continuation. Although it is well established that agriculture is a dominant driver of deforestation, rates and mechanisms remain disputed and often lack a clear evidence base. We synthesize the best available pantropical evidence to provide clarity on how agriculture drives deforestation. Although most (90 to 99%) deforestation across the tropics 2011 to 2015 was driven by agriculture, only 45 to 65% of deforested land became productive agriculture within a few years. Therefore, ending deforestation likely requires combining measures to create deforestation-free supply chains with landscape governance interventions. We highlight key remaining evidence gaps including deforestation trends, commodity-specific land-use dynamics, and data from tropical dry forests and forests across Africa.
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Affiliation(s)
- Florence Pendrill
- Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden
| | - Toby A Gardner
- Stockholm Environment Institute (SEI), Stockholm, Sweden
| | - Patrick Meyfroidt
- Georges Lemaître Earth and Climate Research Centre, Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium.,Fonds de la Recherche Scientifique F.R.S.-FNRS, Brussels, Belgium
| | - U Martin Persson
- Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden
| | - Justin Adams
- Tropical Forest Alliance, World Economic Forum, Geneva, Switzerland
| | | | | | - Matthias Baumann
- Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Veronique De Sy
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, Wageningen, Netherlands
| | - Rachael Garrett
- Environmental PolicyLab, Department of Humanities, Social, and Political Sciences, ETH Zurich, Zürich, Switzerland.,Department of Geography and Cambridge Conservation Initiative, Cambridge University, Cambridge, UK
| | - Javier Godar
- Stockholm Environment Institute (SEI), Stockholm, Sweden
| | | | - Matthew C Hansen
- Department of Geographical Sciences, University of Maryland, College Park, Maryland, USA
| | - Robert Heilmayr
- Environmental Studies Program, University of California, Santa Barbara, Santa Barbara, California, USA.,Bren School of Environmental Science and Management, University of California, Santa Barbara, Santa Barbara, California, USA
| | - Martin Herold
- Helmholz GFZ Research Centre for Geosciences, Section 1.4 Remote Sensing and Geoinformatics, Telegrafenberg, Potsdam, Germany
| | - Tobias Kuemmerle
- Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany.,Integrated Research Institute for Transformations in Human-Environment Systems (IRI THESys), Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Vivian Ribeiro
- Stockholm Environment Institute (SEI), Stockholm, Sweden
| | - Alexandra Tyukavina
- Department of Geographical Sciences, University of Maryland, College Park, Maryland, USA
| | - Mikaela J Weisse
- Global Forest Watch, World Resources Institute, Washington, DC, USA
| | - Chris West
- Stockholm Environment Institute York, Department of Environment and Geography, University of York, York, UK
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13
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Wong ST, Guharajan R, Petrus A, Jubili J, Lietz R, Abrams JF, Hon J, Alen LH, Ting NTK, Wong GTN, Tchin LT, Bijack NJC, Kramer‐Schadt S, Wilting A, Sollmann R. How do terrestrial wildlife communities respond to small‐scale
Acacia
plantations embedded in harvested tropical forest? Ecol Evol 2022; 12:e9337. [PMID: 36188514 PMCID: PMC9486821 DOI: 10.1002/ece3.9337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/09/2022] [Accepted: 08/16/2022] [Indexed: 12/04/2022] Open
Abstract
To offset the declining timber supply by shifting towards more sustainable forestry practices, industrial tree plantations are expanding in tropical production forests. The conversion of natural forests to tree plantation is generally associated with loss of biodiversity and shifts towards more generalist and disturbance tolerant communities, but effects of mixed‐landuse landscapes integrating natural and plantation forests remain little understood. Using camera traps, we surveyed the medium‐to‐large bodied terrestrial wildlife community across two mixed‐landuse forest management areas in Sarawak, Malaysia Borneo which include areas dedicated to logging of natural forests and adjacent planted Acacia forests. We analyzed data from a 25‐wildlife species community using a Bayesian community occupancy model to assess species richness and species‐specific occurrence responses to Acacia plantations at a broad scale, and to remote‐sensed local habitat conditions within the different forest landuse types. All species were estimated to occur in both landuse types, but species‐level percent area occupied and predicted average local species richness were slightly higher in the natural forest management areas compared to licensed planted forest management areas. Similarly, occupancy‐based species diversity profiles and defaunation indices for both a full community and only threatened and endemic species suggested the diversity and occurrence were slightly higher in the natural forest management areas. At the local scale, forest quality was the most prominent predictor of species occurrence. These associations with forest quality varied among species but were predominantly positive. Our results highlight the ability of a mixed‐landuse landscape with small‐scale Acacia plantations embedded in natural forests to retain terrestrial wildlife communities while providing an alternate source of timber. Nonetheless, there was a tendency towards reduced biodiversity in planted forests, which would likely be more pronounced in plantations that are larger or embedded in a less natural matrix.
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Affiliation(s)
- Seth T. Wong
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Institute of Ecology, Technische Universität Berlin Berlin Germany
| | - Roshan Guharajan
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Panthera Malaysia Kuala Lumpur Malaysia
| | | | | | - Robin Lietz
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
| | - Jesse F. Abrams
- Global Systems Institute and Institute of Data Science and Artificial Intelligence, University of Exeter Exeter UK
| | | | | | | | | | | | | | - Stephanie Kramer‐Schadt
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Institute of Ecology, Technische Universität Berlin Berlin Germany
| | - Andreas Wilting
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
| | - Rahel Sollmann
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
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14
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Understanding the spatial distribution and hot spots of collared Bornean elephants in a multi-use landscape. Sci Rep 2022; 12:12830. [PMID: 35896774 PMCID: PMC9329282 DOI: 10.1038/s41598-022-16630-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022] Open
Abstract
In the Kinabatangan floodplain, Sabah, Malaysian Borneo, oil palm and settlements have reduced and fragmented lowland tropical forests, home to around 200 endangered Bornean elephants (Elephas maximus borneensis). In this region, elephants range within forests, oil palm and community areas. The degree to which elephants are using these areas remains unclear. We used GPS telemetry data from 2010 to 2020 for 14 collared elephants to map their entire known ranges and highly used areas (hot spots) across four land use categories and estimate time spent within these. The use of land use types across elephants varied significantly. Typically, females had strong fidelity to forests, yet many of these forests are threatened with conversion. For the three males, and several females, they heavily used oil palm estates, and this may be due to decreased landscape permeability or foraging opportunities. At the pooled level, the entire range and hot spot extents, constituted 37% and 34% for protected areas, respectively, 8% and 11% for unprotected forests, 53% and 51% for oil palm estates, and 2% for community areas. Protecting all forested habitats and effectively managing areas outside of protected areas is necessary for the long-term survival of this population.
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15
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Ecology, occurrence and distribution of wild felids in Sarawak, Malaysian Borneo. ORYX 2022. [DOI: 10.1017/s0030605321001484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Abstract
Sarawak is the largest state in the megadiverse country of Malaysia. Its rich biodiversity is threatened by land-use change and hunting, with mammalian carnivores particularly affected. Data on the ecology, occurrence and distribution of small carnivores are crucial to inform their effective conservation, but no large-scale assessments have previously been conducted in Sarawak. Here we examine the status of the five species of felids in Sarawak based on data from camera-trap studies over 17 years (May 2003–February 2021) across 31 study areas, including protected areas of various sizes, production forests and forest matrix within oil palm plantations. Felids were detected at 39% of 845 camera stations. The marbled cat Pardofelis marmorata and Sunda clouded leopard Neofelis diardi had higher probabilities of occurrence in protected than unprotected areas, and vice versa for the leopard cat Prionailurus bengalensis and bay cat Catopuma badia. The marbled and bay cats were mostly diurnal, and the leopard cat was predominantly nocturnal; activity patterns did not substantively differ between protected and unprotected sites. The probabilities of occurrence of marbled and bay cats increased with greater distance from roads. The leopard cat and flat-headed cat Prionailurus planiceps were more likely, and the clouded leopard less likely, to occur near rivers. Flat-headed cats preferred peat swamp forest, bay cats lowland forest, and marbled cats and clouded leopards occurred in both lowland and montane forest. Felids may tolerate higher elevations to avoid anthropogenic disturbance; therefore, it is critical to preserve lowland and mid-elevation habitats that provide refugia from climate change and the destruction of lowland habitat.
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16
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Pinanga palms revisited 20 years on: what can changes in Pinanga species populations tell us about rainforest understory palm persistence? JOURNAL OF TROPICAL ECOLOGY 2022. [DOI: 10.1017/s0266467422000256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Borneo is the centre of diversity of the palm genus Pinanga. At least 13 understory species have been recorded in the Ulu Temburong National Park in Brunei, but little is known of their persistence. Changes in populations of Pinanga understory palms may be indicative of more widespread changes due to climate change, such as changes in rainfall, which may be important for the palm diversity in the protected area. However, we know little about the population dynamics of these palms, how persistent their populations are or if they behave similarly over long time frames. In 1998, populations of five co-occurring species of Pinanga at several locations in the Ulu Temburong National Park were documented. This project aimed to undertake a comprehensive resurvey of the original five Pinanga palm species populations in order to assess if they showed similar population changes across sites and species after two decades. Overall, most species maintained their population size in the surveyed region but not consistently among sites, and one species significantly declined in abundance. There was considerable variation in population growth rate (R) within and among species and sites that was significantly correlated with density and the percentage of multi-stemmed plants. There was evidence of pulsed recruitment in some species and or sites rather than steady or exponential patterns of population growth.
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17
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Silalahi CN, Tu WC, Chang NT, Singham GV, Ahmad I, Neoh KB. Insecticide Resistance Profiles and Synergism of Field Aedes aegypti from Indonesia. PLoS Negl Trop Dis 2022; 16:e0010501. [PMID: 35666774 PMCID: PMC9203003 DOI: 10.1371/journal.pntd.0010501] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/16/2022] [Accepted: 05/16/2022] [Indexed: 12/05/2022] Open
Abstract
Information on the insecticide resistance profiles of Aedes aegypti in Indonesia is fragmentary because of the lack of wide-area insecticide resistance surveillance. We collected Ae. aegypti from 32 districts and regencies in 27 Indonesian provinces and used WHO bioassays to evaluate their resistance to deltamethrin, permethrin, bendiocarb, and pirimiphos-methyl. To determine the possible resistance mechanisms of Ae. aegypti, synergism tests were conducted using piperonyl butoxide (PBO) and S,S,S-tributylphosphorotrithioates (DEF). The Ae. aegypti from all locations exhibited various levels of resistance to pyrethroids. Their resistance ratio (RR50) to permethrin and deltamethrin ranged from 4.08× to 127× and from 4.37× to 72.20×, respectively. In contrast with the findings of other studies, most strains from the highly urbanized cities on the island of Java (i.e., Banten, Jakarta, Bandung, Semarang, Yogyakarta, and Surabaya) exhibited low to moderate resistance to pyrethroids. By contrast, the strains collected from the less populated Kalimantan region exhibited very high resistance to pyrethroids. The possible reasons are discussed herein. Low levels of resistance to bendiocarb (RR50, 1.24–6.46×) and pirimiphos-methyl (RR50, 1.01–2.70×) were observed in all tested strains, regardless of locality. PBO and DEF synergists significantly increased the susceptibility of Ae. aegypti to permethrin and deltamethrin and reduced their resistance ratio to less than 16×. The synergism tests suggested the major involvement of cytochrome P450 monooxygenases and esterases in conferring pyrethroid resistance. On the basis of our results, we proposed a 6-month rotation of insecticides (deltamethrin + synergists ➝ bendiocarb ➝ permethrin + synergists ➝ pirimiphos-methyl) and the use of an insecticide mixture containing pyrethroid and pyrimiphos-methyl to control Ae. aegypti populations and overcome the challenge of widespread Ae. aegypti resistance to pyrethroid in Indonesia. Insecticide resistance is a major impediment to the successful management of vector-transmitted diseases because it increases the vector’s chances of surviving under insecticide treatment. In Indonesia, the implementation of insecticide resistance management at the national level is particularly challenging due to the vast area and regional disparities in terms of population, health, and socioeconomic status. Previous studies on determining insecticide resistance of Aedes mosquito only focused on several cities in some provinces of Indonesia, making resistance monitoring results difficult to interpret and arguably reflect the generality in Indonesia. To complicate the matter, data released by the Ministry of Agriculture of Indonesia in 2022 showed that approximately 82% of insecticides registered to control Ae. aegypti in Indonesia are pyrethroid-based products. Principally, we found that the synergists PBO and DEF significantly reduce the resistance of field Ae. aegypti from Indonesia toward permethrin and deltamethrin. Bendiocarb and pirimiphos-methyl remain highly toxic to the field strains of Ae. aegypti. We suggest the feasible choice of insecticide group for Ae. aegypti vector management based on the currently registered insecticide inventory. The finding also underscores the urgent need to approve other non-pyrethroid-based insecticides as alternative tools for reducing the risk of resistance development during an outbreak.
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Affiliation(s)
| | - Wu-Chun Tu
- Department of Entomology, National Chung Hsing University, Taichung, Taiwan
| | - Niann-Tai Chang
- Department of Plant Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - G. Veera Singham
- Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
| | - Intan Ahmad
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, West Java, Indonesia
- * E-mail: (IA); (KBN)
| | - Kok-Boon Neoh
- Department of Entomology, National Chung Hsing University, Taichung, Taiwan
- * E-mail: (IA); (KBN)
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18
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Sanwlani N, Evans CD, Müller M, Cherukuru N, Martin P. Rising dissolved organic carbon concentrations in coastal waters of northwestern Borneo related to tropical peatland conversion. SCIENCE ADVANCES 2022; 8:eabi5688. [PMID: 35417233 PMCID: PMC9007511 DOI: 10.1126/sciadv.abi5688] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 02/24/2022] [Indexed: 05/19/2023]
Abstract
Southeast Asia's peatlands are considered a globally important source of terrigenous dissolved organic carbon (DOC) to the ocean. Human disturbance has probably increased peatland DOC fluxes, but the lack of monitoring has precluded a robust demonstration of such a regional-scale impact. Here, we use a time series of satellite ocean color data from northwestern Borneo to show that DOC concentrations in coastal waters have increased between 2002 and 2021 by 0.31 μmol liter-1 year-1 (95% confidence interval, 0.18 to 0.44 μmol liter-1 year-1). We show that this was caused by a ≥30% increase in the concentration of terrigenous DOC and coincided with the conversion of 69% of regional peatland area to nonforest land cover, suggesting that peatland conversion has substantially increased DOC fluxes to the sea. This rise in DOC concentration has also increased the underwater light absorption by dissolved organic matter, which may affect marine productivity by altering underwater light availability.
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Affiliation(s)
- Nivedita Sanwlani
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore
- Corresponding author. (P.M.); (N.S.)
| | - Chris D. Evans
- UK Centre for Ecology & Hydrology, Bangor LL57 2UW, UK
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, Johannesburg, South Africa
| | - Moritz Müller
- Swinburne University of Technology Sarawak Campus, Kuching, Malaysia
| | | | - Patrick Martin
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore
- Corresponding author. (P.M.); (N.S.)
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19
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Slowing deforestation in Indonesia follows declining oil palm expansion and lower oil prices. PLoS One 2022; 17:e0266178. [PMID: 35349594 PMCID: PMC8963565 DOI: 10.1371/journal.pone.0266178] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 03/15/2022] [Indexed: 11/25/2022] Open
Abstract
Much concern about tropical deforestation focuses on oil palm plantations, but their impacts remain poorly quantified. Using nation-wide interpretation of satellite imagery, and sample-based error calibration, we estimated the impact of large-scale (industrial) and smallholder oil palm plantations on natural old-growth (“primary”) forests from 2001 to 2019 in Indonesia, the world’s largest palm oil producer. Over nineteen years, the area mapped under oil palm doubled, reaching 16.24 Mha in 2019 (64% industrial; 36% smallholder), more than the official estimates of 14.72 Mha. The forest area declined by 11% (9.79 Mha), including 32% (3.09 Mha) ultimately converted into oil palm, and 29% (2.85 Mha) cleared and converted in the same year. Industrial plantations replaced more forest than detected smallholder plantings (2.13 Mha vs 0.72 Mha). New plantations peaked in 2009 and 2012 and declined thereafter. Expansion of industrial plantations and forest loss were correlated with palm oil prices. A price decline of 1% was associated with a 1.08% decrease in new industrial plantations and with a 0.68% decrease of forest loss. Deforestation fell below pre-2004 levels in 2017–2019 providing an opportunity to focus on sustainable management. As the price of palm oil has doubled since the start of the COVID-19 pandemic, effective regulation is key to minimising future forest conversion.
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20
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Linking Land Use and Plant Functional Diversity Patterns in Sabah, Borneo, through Large-Scale Spatially Continuous Sentinel-2 Inference. LAND 2022. [DOI: 10.3390/land11040572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Global biodiversity losses erode the functioning of our vital ecosystems. Functional diversity is increasingly recognized as a critical link between biodiversity and ecosystem functioning. Satellite earth observation was proposed to address the current absence of information on large-scale continuous patterns of plant functional diversity. This study demonstrates the inference and spatial mapping of functional diversity metrics through satellite remote sensing over a large key biodiversity region (Sabah, Malaysian Borneo, ~53,000 km2) and compares the derived estimates across a land-use gradient as an initial qualitative assessment to test the potential merits of the approach. Functional traits (leaf water content, chlorophyll-a and -b, and leaf area index) were estimated from Sentinel-2 spectral reflectance using a pre-trained neural network on radiative transfer modeling simulations. Multivariate functional diversity metrics were calculated, including functional richness, divergence, and evenness. Spatial patterns of functional diversity were related to land-use data distinguishing intact forest, logged forest, and oil palm plantations. Spatial patterns of satellite remotely sensed functional diversity are significantly related to differences in land use. Intact forests, as well as logged forests, featured consistently higher functional diversity compared to oil palm plantations. Differences were profound for functional divergence, whereas functional richness exhibited relatively large variances within land-use classes. By linking large-scale patterns of functional diversity as derived from satellite remote sensing to land-use information, this study indicated initial responsiveness to broad human disturbance gradients over large geographical and spatially contiguous extents. Despite uncertainties about the accuracy of the spatial patterns, this study provides a coherent early application of satellite-derived functional diversity toward further validation of its responsiveness across ecological gradients.
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21
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Wong ST, Ng CKC. What drives food security for wildlife in logged and intact forests of tropical Borneo? INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:753-767. [PMID: 35059819 DOI: 10.1007/s00484-021-02234-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/28/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Timber extraction is often cited as detrimental to wildlife ecology. Little information, however, in particular from the Southeast Asian tropics, is available on how exactly logging affects wildlife food security. To address the gap, this paper presents the first high-resolution comparison of fruit production between logged and intact forests in lowland Borneo. In the period of 2004-2008, dry weight of fruit litter was assessed as a proxy for food security of wildlife. The pheno-phases of 1,054 trees in 14 sampling plots were monitored for 54 months. A total of 143,184 fruits from 50 tree families were collected from six sampling transects totalling 810 km in 34 months. Surprisingly, logged forest (mean = 23.3 kg ha-1, SD = 48.9) produced more fruit litter than intact forest (mean = 16.7 kg ha-1, SD = 23.3), although the difference is not significant based on Student's t test; t(66) = 0.702, p = 0.485. Pheno-phases could not be entirely explained by rainfall and temperature variables. Some evidence, however, indicates tree species composition, stand structure and sunlight exposure were likely determinants of flowering and fruit litter intensity. All things being equal, results imply selective logging if considerately practiced may increase food security for wildlife. The findings, however, should be interpreted with caution since tropical forest phenology and fruit productivity are also driven by a suite of small-scale edaphic attributes and large-scale spatio-temporal meteorological forcing. Although this research deals mainly with Borneo, the principles discussed and insights offered herein are valuable for furthering conversation around sustainable forestry in tropical Asia and elsewhere globally.
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Affiliation(s)
- Siew Te Wong
- Bornean Sun Bear Conservation Centre, PPM 219, Elopura, 90000, Sandakan, Sabah, Malaysia.
| | - Casey Keat-Chuan Ng
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Georgetown, Pulau Pinang, Malaysia
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22
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Deforestation by Afforestation: Land Use Change in the Coastal Range of Chile. REMOTE SENSING 2022. [DOI: 10.3390/rs14071686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In southern Chile, an establishment of a plantation-based forest industry occurred early in the industrial era. Forest companies claim that plantations were established on eroded lands. However, the plantation industry is under suspicion to have expanded its activities by clearing near-natural forests since the early 1970s. This paper uses a methodologically complex classification approach from own previously published research to elucidate land use dynamics in southern Chile. It uses spatial data (extended morphological profiles) in addition to spectral data from historical Landsat imagery, which are fusioned by kernel composition and then classified in a multiple classifier system (based on support, import and relevance vector machines). In a large study area (~67,000 km2), land use change is investigated in a narrow time frame (five-year steps from 1975 to 2010) in a two-way (prospective and retrospective) analysis. The results are discussed synoptically with other results on Chile. Two conclusions can be drawn for the coastal range. Near-natural forests have always been felled primarily in favor of the plantation industry. Vice versa, industrial plantations have always been primarily established on sites, that were formerly forest covered. This refutes the claim that Chilean plantations were established primarily to restore eroded lands; also known as badlands. The article further shows that Chile is not an isolated case of deforestation by afforestation, which has occurred in other countries alike. Based on the findings, it raises the question of the extent to which the Chilean example could be replicated in other countries through afforestation by market economy and climate change mitigation.
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23
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Santika T, Sherman J, Voigt M, Ancrenaz M, Wich SA, Wilson KA, Possingham H, Massingham E, Seaman DJI, Ashbury AM, Azvi TS, Banes GL, Barrow EJ, Burslem DFRP, Delgado RA, Erman A, Fredriksson G, Goossens B, Houghton M, Indrawan TP, Jaya RL, Kanamori T, Knott CD, Leiman A, Liswanto D, Mach M, Marshall AJ, Martin JGA, Midora L, Miller A, Milne S, Morgans C, Nardiyono N, Perwitasari-Farajallah D, Priatna D, Risch R, Riyadi GM, Russon A, Sembiring J, Setiawan E, Sidiq M, Simon D, Spehar S, Struebig MJ, Sumardi I, Tjiu A, Wahyudi R, Yanuar A, Meijaard E. Effectiveness of 20 years of conservation investments in protecting orangutans. Curr Biol 2022; 32:1754-1763.e6. [PMID: 35276097 DOI: 10.1016/j.cub.2022.02.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/03/2022] [Accepted: 02/16/2022] [Indexed: 11/24/2022]
Abstract
Conservation strategies are rarely systematically evaluated, which reduces transparency, hinders the cost-effective deployment of resources, and hides what works best in different contexts. Using data on the iconic and critically endangered orangutan (Pongo spp.), we developed a novel spatiotemporal framework for evaluating conservation investments. We show that around USD 1 billion was invested between 2000 and 2019 into orangutan conservation by governments, nongovernmental organizations, companies, and communities. Broken down by allocation to different conservation strategies, we find that habitat protection, patrolling, and public outreach had the greatest return on investment for maintaining orangutan populations. Given the variability in threats, land-use opportunity costs, and baseline remunerations in different regions, there were differential benefits per dollar invested across conservation activities and regions. We show that although challenging from a data and analysis perspective, it is possible to fully understand the relationships between conservation investments and outcomes and the external factors that influence these outcomes. Such analyses can provide improved guidance toward a more effective biodiversity conservation. Insights into the spatiotemporal interplays between the costs and benefits driving effectiveness can inform decisions about the most suitable orangutan conservation strategies for halting population declines. Although our study focuses on the three extant orangutan species of Sumatra and Borneo, our findings have broad application for evidence-based conservation science and practice worldwide.
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Affiliation(s)
- Truly Santika
- Natural Resources Institute (NRI), University of Greenwich, Chatham Maritime ME4 4TB, UK
| | - Julie Sherman
- Wildlife Impact, P.O. Box 31062, Portland, OR 97231, USA
| | - Maria Voigt
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury, Kent CT2 7NR, UK
| | - Marc Ancrenaz
- HUTAN-KOCP, P.O. Box 17793, 88874 Kota Kinabalu, Sabah, Malaysia; Borneo Futures, 8th Floor, PGGMB Building, Jalan Kianggeh, Bandar Seri Begawan BS8111, Brunei Darussalam
| | - Serge A Wich
- School of Biological and Environmental Sciences, Tom Reilly Building, Byrom Street, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Kerrie A Wilson
- Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Hugh Possingham
- Centre for Biodiversity and Conservation Science, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Emily Massingham
- Centre for Biodiversity and Conservation Science, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Dave J I Seaman
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury, Kent CT2 7NR, UK
| | - Alison M Ashbury
- Department of Biology - Fach 618, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany; Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Bücklestraße 4, 78464 Konstanz, Germany; Department of Anthropology, Winterthurerstrasse 190, University of Zurich, 8057 Zurich, Switzerland
| | - Taufiq S Azvi
- Universitas Nahdlatul Ulama Sumatera Utara, Jl. Gaperta Ujung No.2, Tj. Gusta, Kec. Medan Helvetia, Kota Medan, Sumatera Utara 20125, Indonesia; Pesona Tropis Alam Indonesia (PETAI), Komplek Tasbi 2, Jl. Ring Road Blk. V No.21, A M P L A S, Kec. Medan Amplas, Kota Medan, Sumatera Utara 20122, Indonesia
| | - Graham L Banes
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Southwest Commuter Path, Madison, WI 53715, USA
| | - Elizabeth J Barrow
- Gunung Palung Orangutan Conservation Program, P.O. Box G, 1661 Massachusetts Avenue, Lexington, MA 02420-2020, USA
| | - David F R P Burslem
- School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, Aberdeenshire AB24 2TZ, Scotland, UK
| | - Robert A Delgado
- U.S. National Science Foundation, 2415 Eisenhower Avenue, Alexandria, VA, USA
| | - Andi Erman
- GFA/KWF, Kapuas Hulu Program, Pontianak, West Kalimantan, Indonesia
| | - Gabriella Fredriksson
- Vocabolo Ca' di Bracco, Via Migianella 381, Loc Molino Vitelli, 06019 Umbertide, PG, Italia
| | - Benoit Goossens
- Danau Girang Field Centre, c/o Sabah Wildlife Department, Wisma MUIS, Block B 5th Floor, 88100 Kota Kinabalu, Sabah, Malaysia; Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3 AX, UK; Sustainable Places Research Institute, Cardiff University, 33 Park Place, Cardiff CF10 3BA, UK
| | - Max Houghton
- Research Centre in Evolutionary Anthropology, and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK
| | - Tito P Indrawan
- Forum Konservasi Orangutan Kalimantan Barat, Lab 515 Building, 3rd Floor Jl. Salihara No. 41A, Pasar Minggu, Jakarta 12520, Indonesia
| | - Ricko L Jaya
- Orangutan Information Centre, Bunga Sedap Malam XVIII C No. 10, Medan Selayang, Medan, North Sumatra 20131, Indonesia
| | - Tomoko Kanamori
- Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan
| | - Cheryl D Knott
- Gunung Palung Orangutan Conservation Program, P.O. Box G, 1661 Massachusetts Avenue, Lexington, MA 02420-2020, USA; Department of Anthropology, Boston University, 232 Bay State Road, Boston, MA 02215, USA; Department of Biology, Boston University, 5 Cummington Mall, Room 101, Boston, MA 02215, USA
| | - Ashley Leiman
- Orangutan Foundation, 7 Kent Terrace, London NW1 4RP, UK
| | - Darmawan Liswanto
- Yayasan Titian Lestari, Jl. Komp. Alex Griya Permai I, Bangka Belitung Darat, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat 78124, Indonesia; Yayasan SINTAS, Jl. Merdeka Barat No.665, Mariana, Kec. Pontianak Kota, Kota Pontianak, Kalimantan Barat 78243, Indonesia
| | - Martin Mach
- Bumitama, Jl. Melawai Raya No.10, RT.3/RW.1, Melawai, Kec. Kby. Baru, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12160, Indonesia
| | - Andrew J Marshall
- University of Michigan, Department of Anthropology, Department of Ecology and Evolutionary Biology, Program in the Environment, School for Environment and Sustainability, Ann Arbor, MI 48109, USA
| | - Julien G A Martin
- Biology Department, University of Ottawa, Gendron Hall, Room 160, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Lelyana Midora
- Wildlife Impact, P.O. Box 31062, Portland, OR 97231, USA
| | - Adam Miller
- Planet Indonesia, Webster Groves, MO 63119, USA
| | - Sol Milne
- School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, Aberdeenshire AB24 2TZ, Scotland, UK
| | - Courtney Morgans
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury, Kent CT2 7NR, UK
| | - Nardi Nardiyono
- Austindo Nusantara Jaya, Menara BTPN, 40 Floor, Jl. Dr. Ide Anak Agung Gde Agung, Kav. 5.5-5.6, Kawasan Mega Kuningan, Jakarta 12950, Indonesia
| | - Dyah Perwitasari-Farajallah
- Department of Biology, Gedung Biologi, Jalan Agatis Kampus IPB Dramaga, Bogor 16680, Indonesia; Primate Research Center, IPB University, Jl. Lodaya II/5, Bogor 16151, Indonesia
| | - Dolly Priatna
- Graduate School of Environmental Management, Pakuan University, Jl. Pakuan, RT.02/RW.06, Tegallega, Kecamatan Bogor Tengah, Kota Bogor, Jawa Barat 16129, Indonesia; Belantara Foundation, Dimo Space, Jl. Timor No.6, RT.9/RW.4, Gondangdia, Kec. Menteng, Kota Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10350, Indonesia
| | - Robert Risch
- Rhino and Forest Fund, Auf dem Stein 2, 77694 Kehl, Germany
| | - Galuh M Riyadi
- Universitas Tanjungpura, Jl. Prof. Dr. H Jl. Profesor Dokter H. Hadari Nawawi, Bansir Laut, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat 78124, Indonesia; Malaysian Environmental Consultants, 82 Jalan Ampang Hilir, 55000 Kuala Lumpur, Malaysia
| | - Anne Russon
- Glendon College of York University, 2275 Bayview Avenue, Toronto, ON M4N 3M6, Canada
| | - Juhardi Sembiring
- Universitas Nahdlatul Ulama Sumatera Utara, Jl. Gaperta Ujung No.2, Tj. Gusta, Kec. Medan Helvetia, Kota Medan, Sumatera Utara 20125, Indonesia
| | - Endro Setiawan
- Gunung Palung National Park Office, Padu Banjar, Kec. Simpang Hilir, Kabupaten Ketapang, Kalimantan Barat 78857, Indonesia
| | - Mohammad Sidiq
- Universitas Tanjungpura, Jl. Prof. Dr. H Jl. Profesor Dokter H. Hadari Nawawi, Bansir Laut, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat 78124, Indonesia
| | - Donna Simon
- WWF-Malaysia, Suite 1-6-W11 6th Floor, CPS Tower, Centre Point Complex No. 1, Lorong Centre Point, Pusat Bandar, 88000 Kota Kinabalu, Sabah, Malaysia
| | - Stephanie Spehar
- Sustainability Institute for Regional Transformations, 4483 Sage Hall, 835 High Avenue, Oshkosh, WI 54901, USA
| | - Matthew J Struebig
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury, Kent CT2 7NR, UK
| | - Ibrahim Sumardi
- Gunung Palung National Park Office, Padu Banjar, Kec. Simpang Hilir, Kabupaten Ketapang, Kalimantan Barat 78857, Indonesia
| | - Albertus Tjiu
- World Wide Fund for Nature-Indonesia (Yayasan WWF Indonesia), WWF Indonesia Gedung Graha Simatupang, Tower 2, Unit C, 7 Floor, Jl. Letjen TB. Simatupang Kav. 38, Jakarta Selatan 12540, Indonesia
| | - Rizki Wahyudi
- Gunung Palung National Park Office, Padu Banjar, Kec. Simpang Hilir, Kabupaten Ketapang, Kalimantan Barat 78857, Indonesia
| | - Achmad Yanuar
- Graduate School, Department of Biology, Universitas Nasional, Jl. Sawo Manila, Pejaten Ps., South Jakarta 12520, Indonesia
| | - Erik Meijaard
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury, Kent CT2 7NR, UK; Borneo Futures, 8th Floor, PGGMB Building, Jalan Kianggeh, Bandar Seri Begawan BS8111, Brunei Darussalam; Department of Ecology, Faculty of Science, Charles University, Viničná 7, Prague 2, 12844 Prague, Czech Republic.
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24
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The Coffee Compromise: Is Agricultural Expansion into Tree Plantations a Sustainable Option? SUSTAINABILITY 2022. [DOI: 10.3390/su14053019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In tropical regions, land-use pressures between natural forest, commercial tree plantations, and agricultural land for rural communities are widespread. One option is to increase the functionality of commercial plantations by allowing agroforestry within them by rural communities. Such land-sharing options could address wider societal and environmental issues and reduce pressure on natural forest. To investigate the trade-offs involved, we used InVEST to model the ecosystem services provided by growing coffee under commercial pine plantations in Indonesia against other land-use options. Pine–coffee agroforestry provided worse supporting and regulating services (carbon, sediment and nitrogen retention, catchment runoff) than natural forest; however, it provided greater provisioning services (product yield) directly to smallholders. Converting pine monoculture into pine-coffee agroforestry led to increases in all ecosystem services, although there was an increased risk to water quality. Compared with coffee and root crop monocultures, pine–coffee agroforestry provided higher levels of supporting and regulating services; however, product yields were lower. Thus, opening up pine plantations for agroforestry realises additional income-generating opportunities for rural communities, provides wider ecosystem service benefits, and reduces pressure for land-use change. Lower smallholder yields could be addressed through the management of shade levels or through Payments for Ecosystem Services schemes.
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25
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Zhang Y, Zhang L, Wang H, Wang Y, Ding J, Shen J, Wang Z, Liu Y, Liang C, Li S. Reconstructing deforestation patterns in China from 2000 to 2019. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.109874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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26
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Fritz S, Laso Bayas JC, See L, Schepaschenko D, Hofhansl F, Jung M, Dürauer M, Georgieva I, Danylo O, Lesiv M, McCallum I. A Continental Assessment of the Drivers of Tropical Deforestation With a Focus on Protected Areas. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.830248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Deforestation contributes to global greenhouse gas emissions and must be reduced if the 1.5°C limit to global warming is to be realized. Protected areas represent one intervention for decreasing forest loss and aiding conservation efforts, yet there is intense human pressure on at least one-third of protected areas globally. There have been numerous studies addressing the extent and identifying drivers of deforestation at the local, regional, and global level. Yet few have focused on drivers of deforestation in protected areas in high thematic detail. Here we use a new crowdsourced data set on drivers of tropical forest loss for the period 2008–2019, which has been collected using the Geo-Wiki crowdsourcing application for visual interpretation of very high-resolution imagery by volunteers. Extending on the published data on tree cover and forest loss from the Global Forest Change initiative, we investigate the dominant drivers of deforestation in tropical protected areas situated within 30° north and south of the equator. We find the deforestation rate in protected areas to be lower than the continental average for the Latin Americas (3.4% in protected areas compared to 5.4%) and Africa (3.3% compared to 3.9%), but it exceeds that of unprotected land in Asia (8.5% compared to 8.1%). Consistent with findings from foregoing studies, we also find that pastures and other subsistence agriculture are the dominant deforestation driver in the Latin Americas, while forest management, oil palm, shifting cultivation and other subsistence agriculture dominate in Asia, and shifting cultivation and other subsistence agriculture is the main driver in Africa. However, we find contrasting results in relation to the degree of protection, which indicate that the rate of deforestation in Latin America and Africa in strictly protected areas might even exceed that of areas with no strict protection. This crucial finding highlights the need for further studies based on a bottom up crowdsourced, data collection approach, to investigate drivers of deforestation both inside and outside protected areas.
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Fornace K, Manin BO, Matthiopoulos J, Ferguson HM, Drakeley C, Ahmed K, Khoon KT, Ewers RM, Daim S, Chua TH. A protocol for a longitudinal, observational cohort study of infection and exposure to zoonotic and vector-borne diseases across a land-use gradient in Sabah, Malaysian Borneo: a socio-ecological systems approach. Wellcome Open Res 2022; 7:63. [PMID: 35284640 PMCID: PMC8886174 DOI: 10.12688/wellcomeopenres.17678.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2022] [Indexed: 11/20/2022] Open
Abstract
Introduction. Landscape changes disrupt environmental, social and biological systems, altering pathogen spillover and transmission risks. This study aims to quantify the impact of specific land management practices on spillover and transmission rates of zoonotic and vector-borne diseases within Malaysian Borneo. This protocol describes a cohort study with integrated ecological sampling to assess how deforestation and agricultural practices impact pathogen flow from wildlife and vector populations to human infection and detection by health facilities. This will focus on malaria, dengue and emerging arboviruses (Chikungunya and Zika), vector-borne diseases with varying contributions of simian reservoirs within this setting. Methods. A prospective longitudinal observational cohort study will be established in communities residing or working within the vicinity of the Stability of Altered Forest Ecosystems (SAFE) Project, a landscape gradient within Malaysian Borneo encompassing different plantation and forest types. The primary outcome of this study will be transmission intensity of selected zoonotic and vector-borne diseases, as quantified by changes in pathogen-specific antibody levels. Exposure will be measured using paired population-based serological surveys conducted at the beginning and end of the two-year cohort study. Secondary outcomes will include the distribution and infection rates of Aedes and Anopheles mosquito vectors, human risk behaviours and clinical cases reported to health facilities. Longitudinal data on human behaviour, contact with wildlife and GPS tracking of mobility patterns will be collected throughout the study period. This will be integrated with entomological surveillance to monitor densities and pathogen infection rates of Aedes and Anopheles mosquitoes relative to land cover. Within surrounding health clinics, continuous health facility surveillance will be used to monitor reported infections and febrile illnesses. Models will be developed to assess spillover and transmission rates relative to specific land management practices and evaluate abilities of surveillance systems to capture these risks.
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Affiliation(s)
- Kimberly Fornace
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Benny Obrain Manin
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Jason Matthiopoulos
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Heather M. Ferguson
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Chris Drakeley
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Kamruddin Ahmed
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Koay Teng Khoon
- Sabah State Health Department, Ministry of Health, Malaysia, Kota Kinabalu, Malaysia
| | | | - Sylvia Daim
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
- East Malaysia Zoonotic and Infectious Diseases Society, Kota Kinabalu, Malaysia
| | - Tock Hing Chua
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
- East Malaysia Zoonotic and Infectious Diseases Society, Kota Kinabalu, Malaysia
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Aryapratama R, Pauliuk S. Life cycle carbon emissions of different land conversion and woody biomass utilization scenarios in Indonesia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150226. [PMID: 34536883 DOI: 10.1016/j.scitotenv.2021.150226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 05/21/2023]
Abstract
Wood-based products can contribute to climate change mitigation by prolonging the storage of carbon in the anthroposphere. In Indonesia, however, many wood-based products originate from unsustainable sources due to widespread land-use changes over the past decades. To reconcile economic development and climate policy, a detailed and comprehensive carbon life cycle assessment is needed, covering biospheric and technospheric woody carbon flows and emissions over time. In this study, we combine dynamic material flow analysis, stock modeling, and life cycle assessment to estimate life cycle carbon emissions over time of wood products from different land conversion types in Indonesia on a hectare (ha) basis. Wood production from clear-cut primary forest conversions to oil palm, secondary forest, and timber plantations lead to net carbon emissions between 1206-1282, 436-449, and 629-958 t-CO2-eq/ha, respectively, at the end of the 200-year time horizon (TH). The counter-use scenarios of using non-renewable materials or energy instead of wood-based products for the same set of scenarios while leaving primary forests untouched display 44-57, 59-88, and 5-48% lower global warming potentials, respectively, at the end of the TH. Wood products from forest plantations on restored degraded land (DL_FP), reduced-impact logging (RIL), and improved reduced-impact logging (RIL-C) of primary forest went beyond carbon neutrality, displaying carbon removal potentials of up to around -218, -378, and -739 t-CO2-eq/ha, respectively, by year 200. At the one ha-scale, our results indicate that keeping primary forests intact is the climate-preferable option, even when emissions from the counter-use of non-renewable materials or energy are factored in, except if RIL is performed. Therefore, wood product utilization would only be favorable from a climate perspective in DL_FP or RIL pathways. These results help screen different land conversion policy options and providing information about the climate mitigation potential of wood products in different supply chains.
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Affiliation(s)
- Rio Aryapratama
- Industrial Ecology Research Group, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg D-79106, Germany.
| | - Stefan Pauliuk
- Industrial Ecology Research Group, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg D-79106, Germany.
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Dančák M, Majeský Ľ, Čermák V, Golos MR, Płachno BJ, Tjiasmanto W. First record of functional underground traps in a pitcher plant: Nepenthespudica (Nepenthaceae), a new species from North Kalimantan, Borneo. PHYTOKEYS 2022; 201:77-97. [PMID: 36762309 PMCID: PMC9848998 DOI: 10.3897/phytokeys.201.82872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/08/2022] [Indexed: 05/14/2023]
Abstract
Nepenthespudica, a new species from North Kalimantan, Indonesia, is described and illustrated. The species belongs to the N.hirsuta group (sensu Cheek and Jebb 1999) but exhibits some characters that are unique within the group or even within the genus. Above all, it produces underground, achlorophyllous shoots with well-developed, ventricose lower pitchers that form in soil cavities or directly in the soil. No lower pitchers are formed above ground. The main part of its prey are ants, besides other litter- and soil-inhabiting species of invertebrates. A number of infaunal species were found in both aerial and underground pitchers, mainly Diptera and nematodes. Nepenthespudica is known only from a few neighbouring localities in the Mentarang Hulu district of North Kalimantan, where it grows on ridgetops at an elevation of 1100-1300 m. Its discovery underlines the natural richness of Borneo's rainforest and the necessity to preserve this important ecosystem with its enormous and still undiscovered biodiversity.
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Affiliation(s)
- Martin Dančák
- Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Ľuboš Majeský
- Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Václav Čermák
- Department of Botany, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Michal R. Golos
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00 Brno, Czech Republic
| | - Bartosz J. Płachno
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol, BS8 1TQ, UK
| | - Wewin Tjiasmanto
- Department of Plant Cytology and Embryology, Faculty of Biology, Institute of Botany, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387 Kraków, Poland
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Mohd Hanafiah K, Abd Mutalib AH, Miard P, Goh CS, Mohd Sah SA, Ruppert N. Impact of Malaysian palm oil on sustainable development goals: co-benefits and trade-offs across mitigation strategies. SUSTAINABILITY SCIENCE 2022; 17:1639-1661. [PMID: 34667481 PMCID: PMC8517301 DOI: 10.1007/s11625-021-01052-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/28/2021] [Indexed: 05/10/2023]
Abstract
UNLABELLED Palm oil (PO) is an important source of livelihood, but unsustainable practices and widespread consumption may threaten human and planetary health. We reviewed 234 articles and summarized evidence on the impact of PO on health, social and economic aspects, environment, and biodiversity in the Malaysian context, and discuss mitigation strategies based on the sustainable development goals (SDGs). The evidence on health impact of PO is equivocal, with knowledge gaps on whether moderate consumption elevates risk for chronic diseases, but the benefits of phytonutrients (SDG2) and sensory characteristics of PO seem offset by its high proportion of saturated fat (SDG3). While PO contributes to economic growth (SDG9, 12), poverty alleviation (SDG1, 8, 10), enhanced food security (SDG2), alternative energy (SDG9), and long-term employment opportunities (SDG1), human rights issues and inequities attributed to PO production persist (SDG8). Environmental impacts arise through large-scale expansion of monoculture plantations associated with increased greenhouse gas emissions (SDG13), especially from converted carbon-rich peat lands, which can cause forest fires and annual trans-boundary haze; changes in microclimate properties and soil nutrient content (SDG6, 13); increased sedimentation and change of hydrological properties of streams near slopes (SDG6); and increased human wildlife conflicts, increase of invasive species occurrence, and reduced biodiversity (SDG14, 15). Practices such as biological pest control, circular waste management, multi-cropping and certification may mitigate negative impacts on environmental SDGs, without hampering progress of socioeconomic SDGs. While strategies focusing on improving practices within and surrounding plantations offer co-benefits for socioeconomic, environment and biodiversity-related SDGs, several challenges in achieving scalable solutions must be addressed to ensure holistic sustainability of PO in Malaysia for various stakeholders. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11625-021-01052-4.
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Affiliation(s)
- Khayriyyah Mohd Hanafiah
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Life Sciences, Macfarlane Burnet Institute, Melbourne, VIC 3004 Australia
| | - Aini Hasanah Abd Mutalib
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu Malaysia
| | - Priscillia Miard
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Chun Sheng Goh
- Jeffrey Cheah Institute on Southeast Asia, Sunway University, 47500 Bandar Sunway, Selangor Malaysia
| | | | - Nadine Ruppert
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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Skeletal Variation and Taxonomic Boundaries in the Pen-tailed Treeshrew (Scandentia: Ptilocercidae; Ptilocercus lowii Gray, 1848). J MAMM EVOL 2021. [DOI: 10.1007/s10914-021-09556-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Hemprich-Bennett DR, Kemp VA, Blackman J, Lewis OT, Struebig MJ, Bernard H, Kratina P, Rossiter SJ, Clare EL. Selective Logging Shows No Impact on the Dietary Breadth of a Generalist Bat Species: The Fawn Leaf-Nosed Bat (Hipposideros cervinus). Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.750269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Logging activities degrade forest habitats across large areas of the tropics, but the impacts on trophic interactions that underpin forest ecosystems are poorly understood. DNA metabarcoding provides an invaluable tool to investigate such interactions, allowing analysis at a far greater scale and resolution than has previously been possible. We analysed the diet of the insectivorous fawn leaf-nosed bat Hipposideros cervinus across a forest disturbance gradient in Borneo, using a dataset of ecological interactions from an unprecedented number of bat-derived faecal samples. Bats predominantly consumed insects from the orders Lepidoptera, Diptera, Blattodea, and Coleoptera, and the taxonomic composition of their diet remained relatively consistent across sites regardless of logging disturbance. There was little difference in the richness of prey consumed per-bat in each logging treatment, indicating potential resilience of this species to habitat degradation. In fact, bats consumed a high richness of prey items, and intensive sampling is needed to reliably compare feeding ecology over multiple sites. Multiple bioinformatic parameters were used, to assess how they altered our perception of sampling completeness. While parameter choice altered estimates of completeness, a very high sampling effort was always required to detect the entire prey community.
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Hwang M, Ditmer MA, Teo S, Wong ST, Garshelis DL. Sun bears use 14‐year‐old previously logged forest more than primary forest in Sabah, Malaysia. Ecosphere 2021. [DOI: 10.1002/ecs2.3769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Mei‐Hsiu Hwang
- Institute of Wildlife Conservation College of Veterinary Medicine National Pingtung University of Science and Technology 1, Shuehfu Rd., Neipu Pingtung 912 Taiwan
| | - Mark A. Ditmer
- Department of Fisheries, Wildlife, and Conservation Biology University of Minnesota Saint Paul Minnesota 55108 USA
- U.S.D.A. Forest Service Rocky Mountain Research Station, 324, 25th Street Ogden Utah 84401 USA
| | - Shu‐De Teo
- Institute of Wildlife Conservation College of Veterinary Medicine National Pingtung University of Science and Technology 1, Shuehfu Rd., Neipu Pingtung 912 Taiwan
| | - Siew Te Wong
- Bornean Sun Bear Conservation Centre Jalan Sepilok, Mile 14 Sandakan, Sabah 90000 Malaysia
| | - David L. Garshelis
- IUCN SSC Bear Specialist Group 35132 Hanna Road Cohasset Minnesota 55721 USA
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Murphy DJ, Goggin K, Paterson RRM. Oil palm in the 2020s and beyond: challenges and solutions. CABI AGRICULTURE AND BIOSCIENCE 2021; 2:39. [PMID: 34661165 PMCID: PMC8504560 DOI: 10.1186/s43170-021-00058-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Oil palm, Elaeis guineensis, is by far the most important global oil crop, supplying about 40% of all traded vegetable oil. Palm oils are key dietary components consumed daily by over three billion people, mostly in Asia, and also have a wide range of important non-food uses including in cleansing and sanitizing products. MAIN BODY Oil palm is a perennial crop with a > 25-year life cycle and an exceptionally low land footprint compared to annual oilseed crops. Oil palm crops globally produce an annual 81 million tonnes (Mt) of oil from about 19 million hectares (Mha). In contrast, the second and third largest vegetable oil crops, soybean and rapeseed, yield a combined 84 Mt oil but occupy over 163 Mha of increasingly scarce arable land. The oil palm crop system faces many challenges in the 2020s. These include increasing incidence of new and existing pests/diseases and a general lack of climatic resilience, especially relating to elevated temperatures and increasingly erratic rainfall patterns, plus downstream issues relating to supply chains and consumer sentiment. This review surveys the oil palm sector in the 2020s and beyond, its major challenges and options for future progress. CONCLUSIONS Oil palm crop production faces many future challenges, including emerging threats from climate change and pests and diseases. The inevitability of climate change requires more effective international collaboration for its reduction. New breeding and management approaches are providing the promise of improvements, such as much higher yielding varieties, improved oil profiles, enhanced disease resistance, and greater climatic resilience.
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Affiliation(s)
- Denis J. Murphy
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT UK
| | - Kirstie Goggin
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT UK
- School of Pharmacy and Pharmaceutical Sciences, University of Cardiff, CF10 3NB Cardiff, UK
| | - R. Russell M. Paterson
- CEB-Centre of Biological Engineering, Gualtar Campus, University of Minho, 4710-057 Braga, Portugal
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E. Malaysia
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Cuenca PR, Key S, Jumail A, Surendra H, Ferguson HM, Drakeley CJ, Fornace K. Epidemiology of the zoonotic malaria Plasmodium knowlesi in changing landscapes. ADVANCES IN PARASITOLOGY 2021; 113:225-286. [PMID: 34620384 DOI: 10.1016/bs.apar.2021.08.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Within the past two decades, incidence of human cases of the zoonotic malaria Plasmodium knowlesi has increased markedly. P. knowlesi is now the most common cause of human malaria in Malaysia and threatens to undermine malaria control programmes across Southeast Asia. The emergence of zoonotic malaria corresponds to a period of rapid deforestation within this region. These environmental changes impact the distribution and behaviour of the simian hosts, mosquito vector species and human populations, creating new opportunities for P. knowlesi transmission. Here, we review how landscape changes can drive zoonotic disease emergence, examine the extent and causes of these changes across Southeast and identify how these mechanisms may be impacting P. knowlesi dynamics. We review the current spatial epidemiology of reported P. knowlesi infections in people and assess how these demographic and environmental changes may lead to changes in transmission patterns. Finally, we identify opportunities to improve P. knowlesi surveillance and develop targeted ecological interventions within these landscapes.
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Affiliation(s)
- Pablo Ruiz Cuenca
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Stephanie Key
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | - Henry Surendra
- Eijkman-Oxford Clinical Research Unit, Jakarta, Indonesia; Centre for Tropical Medicine, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Heather M Ferguson
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Chris J Drakeley
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Kimberly Fornace
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom; Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, Scotland, United Kingdom.
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Oikonomou EK, Berret JF. Advanced Eco-Friendly Formulations of Guar Biopolymer-Based Textile Conditioners. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5749. [PMID: 34640145 PMCID: PMC8510192 DOI: 10.3390/ma14195749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022]
Abstract
Fabric conditioners are household products used to impart softness and fragrance to textiles. They are colloidal dispersions of cationic double chain surfactants that self-assemble in vesicles. These surfactants are primarily derived from palm oil chemical modification. Reducing the content of these surfactants allows to obtain products with lower environmental impact. Such a reduction, without adverse effects on the characteristics of the softener and its performance, can be achieved by adding hydrophilic biopolymers. Here, we review the role of guar biopolymers modified with cationic or hydroxyl-propyl groups, on the physicochemical properties of the formulation. Electronic and optical microscopy, dynamic light scattering, X-ray scattering and rheology of vesicles dispersion in the absence and presence of guar biopolymers are analyzed. Finally, the deposition of the new formulation on cotton fabrics is examined through scanning electron microscopy and a new protocol based on fluorescent microscopy. With this methodology, it is possible to quantify the deposition of surfactants on cotton fibers. The results show that the approach followed here can facilitate the design of sustainable home-care products.
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Affiliation(s)
- Evdokia K. Oikonomou
- Université de Paris, Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes, 75013 Paris, France;
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Kurz DJ, Saikim FH, Justine VT, Bloem J, Libassi M, Luskin MS, Withey LS, Goossens B, Brashares JS, Potts MD. Transformation and endurance of Indigenous hunting: Kadazandusun‐Murut bearded pig hunting practices amidst oil palm expansion and urbanization in Sabah, Malaysia. PEOPLE AND NATURE 2021. [DOI: 10.1002/pan3.10250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- David J. Kurz
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
| | - Fiffy Hanisdah Saikim
- Institute for Tropical Biology and Conservation Universiti Malaysia SabahJalan UMS Sabah Malaysia
| | | | - Jordan Bloem
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
| | - Matthew Libassi
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
| | | | - Lauren S. Withey
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
| | - Benoît Goossens
- Organisms and Environment Division School of Biosciences Cardiff University Cardiff UK
- Danau Girang Field Centre, c/o Sabah Wildlife Department Wisma Muis Sabah Malaysia
- Sabah Wildlife Department Wisma Muis Sabah Malaysia
- Sustainable Places Research InstituteCardiff University Cardiff UK
| | - Justin S. Brashares
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
| | - Matthew D. Potts
- Department of Environmental Science, Policy, and Management University of California, Berkeley Berkeley CA USA
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Drewer J, Leduning MM, Purser G, Cash JM, Sentian J, Skiba UM. Monoterpenes from tropical forest and oil palm plantation floor in Malaysian Borneo/Sabah: emission and composition. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31792-31802. [PMID: 33611733 DOI: 10.1007/s11356-021-13052-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Regional estimates of VOC fluxes focus largely on emissions from the canopy and omit potential contributions from the forest floor including soil, litter and understorey vegetation. Here, we measured monoterpene emissions every 2 months over 2 years from logged tropical forest and oil palm plantation floor in Malaysian Borneo using static flux chambers. The main emitted monoterpenes were α-pinene, β-pinene and d-limonene. The amount of litter present was the strongest indicator for higher monoterpene fluxes. Mean α-pinene fluxes were around 2.5-3.5 μg C m-2 h-1 from the forest floor with occasional fluxes exceeding 100 μg C m-2 h-1. Fluxes from the oil palm plantation, where hardly any litter was present, were lower (on average 0.5-2.9 μg C m-2 h-1) and only higher when litter was present. All other measured monoterpenes were emitted at lower rates. No seasonal trends could be identified for all monoterpenes and mean fluxes from both forest and plantation floor were ~ 100 times smaller than canopy emission rates reported in the literature. Occasional spikes of higher emissions from the forest floor, however, warrant further investigation in terms of underlying processes and their contribution to regional scale atmospheric fluxes.
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Affiliation(s)
- Julia Drewer
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, EH26 0QB, UK.
| | - Melissa M Leduning
- Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 84400, Kota Kinabalu, Malaysia
| | - Gemma Purser
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
| | - James M Cash
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
| | - Justin Sentian
- Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 84400, Kota Kinabalu, Malaysia
| | - Ute M Skiba
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
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Singh M, Yan S. Spatial-temporal variations in deforestation hotspots in Sumatra and Kalimantan from 2001-2018. Ecol Evol 2021; 11:7302-7314. [PMID: 34188814 PMCID: PMC8216897 DOI: 10.1002/ece3.7562] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 11/22/2022] Open
Abstract
Tropical deforestation varies temporally and spatially which can inhibit the ability of existing protected areas to stem forest loss. Identifying the spatial-temporal distribution of deforestation and its concentration can help decision makers decide conservation priorities and leverage limited resources. This study assessed how topographic and anthropogenic variables affect deforestation patterns within and outside protected areas on the islands of Sumatra and Kalimantan in Indonesia. Emerging hotspot analysis (EHA) was used to evaluate spatial and temporal trends of forest loss on the Hansen annual forest loss data for these islands from 2001-2018. For the two islands, most hotspots were detected outside protected areas; those within protected areas were mainly concentrated at boundaries, where lower elevation/slope and high human pressure could be observed. New hotspots were identified within the three PAs in Sumatra, while three kinds of hotspots (consecutive, oscillating, and sporadic) were found in the two PAs of Kalimantan (Kutai and Teluk Kelumpang). Areas with high human pressure (average human footprint higher than 12) were covered by a high density of hotspots. The results identify specific areas where forest loss has emerged recently, which could indicate a conservation priority. It is suggested that new protected areas be established in locations showing intensifying and persistent hotspots-those where deforestation has occurred for ≥16 of 18 years of the study period.
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Affiliation(s)
- Minerva Singh
- Centre for Environmental PolicyImperial College LondonLondonUK
| | - Siheng Yan
- Centre for Environmental PolicyImperial College LondonLondonUK
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Milodowski DT, Coomes DA, Swinfield T, Jucker T, Riutta T, Malhi Y, Svátek M, Kvasnica J, Burslem DFRP, Ewers RM, Teh YA, Williams M. The impact of logging on vertical canopy structure across a gradient of tropical forest degradation intensity in Borneo. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.13895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- David T. Milodowski
- School of GeoSciences University of Edinburgh Edinburgh UK
- National Centre for Earth Observation University of Edinburgh Edinburgh UK
| | - David A. Coomes
- Department of Plant Sciences University of Cambridge Conservation Research Institute Cambridge UK
| | - Tom Swinfield
- Department of Plant Sciences University of Cambridge Conservation Research Institute Cambridge UK
- Centre for Conservation ScienceRoyal Society for the Protection of Birds Cambridge UK
| | - Tommaso Jucker
- Department of Plant Sciences University of Cambridge Conservation Research Institute Cambridge UK
- School of Biological Sciences University of Bristol Bristol UK
| | - Terhi Riutta
- School of Geography and the Environment University of Oxford Oxford UK
- Faculty of Natural Sciences Imperial College London UK
| | - Yadvinder Malhi
- School of Geography and the Environment University of Oxford Oxford UK
| | - Martin Svátek
- Department of Forest Botany, Dendrology and Geobiocoenology Mendel University in Brno Brno Czech Republic
| | - Jakub Kvasnica
- Department of Forest Botany, Dendrology and Geobiocoenology Mendel University in Brno Brno Czech Republic
| | | | | | - Yit Arn Teh
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK
| | - Mathew Williams
- School of GeoSciences University of Edinburgh Edinburgh UK
- National Centre for Earth Observation University of Edinburgh Edinburgh UK
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Winkler K, Fuchs R, Rounsevell M, Herold M. Global land use changes are four times greater than previously estimated. Nat Commun 2021; 12:2501. [PMID: 33976120 PMCID: PMC8113269 DOI: 10.1038/s41467-021-22702-2] [Citation(s) in RCA: 143] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 03/22/2021] [Indexed: 02/02/2023] Open
Abstract
Quantifying the dynamics of land use change is critical in tackling global societal challenges such as food security, climate change, and biodiversity loss. Here we analyse the dynamics of global land use change at an unprecedented spatial resolution by combining multiple open data streams (remote sensing, reconstructions and statistics) to create the HIstoric Land Dynamics Assessment + (HILDA +). We estimate that land use change has affected almost a third (32%) of the global land area in just six decades (1960-2019) and, thus, is around four times greater in extent than previously estimated from long-term land change assessments. We also identify geographically diverging land use change processes, with afforestation and cropland abandonment in the Global North and deforestation and agricultural expansion in the South. Here, we show that observed phases of accelerating (~1960-2005) and decelerating (2006-2019) land use change can be explained by the effects of global trade on agricultural production.
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Affiliation(s)
- Karina Winkler
- grid.4818.50000 0001 0791 5666Laboratory of Geoinformation and Remote Sensing, Wageningen University & Research (WUR), Wageningen, The Netherlands ,grid.7892.40000 0001 0075 5874Land Use Change & Climate Research Group, IMK-IFU, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Richard Fuchs
- grid.7892.40000 0001 0075 5874Land Use Change & Climate Research Group, IMK-IFU, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Mark Rounsevell
- grid.7892.40000 0001 0075 5874Land Use Change & Climate Research Group, IMK-IFU, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany ,grid.7892.40000 0001 0075 5874Institute of Geography & Geo-ecology (IFGG), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany ,grid.4305.20000 0004 1936 7988School of GeoSciences, University of Edinburgh, Edinburgh, UK
| | - Martin Herold
- grid.4818.50000 0001 0791 5666Laboratory of Geoinformation and Remote Sensing, Wageningen University & Research (WUR), Wageningen, The Netherlands
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Young KI, Buenemann M, Vasilakis N, Perera D, Hanley KA. Shifts in mosquito diversity and abundance along a gradient from oil palm plantations to conterminous forests in Borneo. Ecosphere 2021; 12. [PMID: 33996190 DOI: 10.1002/ecs2.3463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Deforestation precipitates spillover of enzootic, vector-borne viruses into humans, but specific mechanisms for this effect have rarely been investigated. Expansion of oil palm cultivation is a major driver of deforestation. Here, we demonstrate that mosquito abundance decreased over ten stepwise distances from interior forest into conterminous palm plantations in Borneo. Diversity in interior plantation narrowed to one species, Aedes albopictus, a potential bridge vector for spillover of multiple viruses. A. albopictus was equally abundant across all distances in forests, forest-plantation edge, and plantations, while A. niveus, a known vector of sylvatic dengue virus, was found only in forests. A. albopictus collections were significantly female-biased in plantation but not in edge or forest. Our data reveal that the likelihood of encountering any mosquito is greater in interior forest and edge than plantation, while the likelihood of encountering A. albopictus is equivalent across the gradient sampled from interior plantation to interior forest.
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Affiliation(s)
- Katherine I Young
- Department of Biology, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
| | - Michaela Buenemann
- Department of Geography, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
| | - Nikos Vasilakis
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, Center of Tropical Diseases, and Institute for Human Infections and Immunity, The University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555 USA
| | - David Perera
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300 Kota Samarahan, Sarawak, Malaysia
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, 1780 E University Ave, Las Cruces, New Mexico 88003 USA
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43
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A map of the extent and year of detection of oil palm plantations in Indonesia, Malaysia and Thailand. Sci Data 2021; 8:96. [PMID: 33785753 PMCID: PMC8010082 DOI: 10.1038/s41597-021-00867-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 02/10/2021] [Indexed: 11/09/2022] Open
Abstract
In recent decades, global oil palm production has shown an abrupt increase, with almost 90% produced in Southeast Asia alone. To understand trends in oil palm plantation expansion and for landscape-level planning, accurate maps are needed. Although different oil palm maps have been produced using remote sensing in the past, here we use Sentinel 1 imagery to generate an oil palm plantation map for Indonesia, Malaysia and Thailand for the year 2017. In addition to location, the age of the oil palm plantation is critical for calculating yields. Here we have used a Landsat time series approach to determine the year in which the oil palm plantations are first detected, at which point they are 2 to 3 years of age. From this, the approximate age of the oil palm plantation in 2017 can be derived.
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Nunes MH, Jucker T, Riutta T, Svátek M, Kvasnica J, Rejžek M, Matula R, Majalap N, Ewers RM, Swinfield T, Valbuena R, Vaughn NR, Asner GP, Coomes DA. Recovery of logged forest fragments in a human-modified tropical landscape during the 2015-16 El Niño. Nat Commun 2021; 12:1526. [PMID: 33750781 PMCID: PMC7943823 DOI: 10.1038/s41467-020-20811-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/02/2020] [Indexed: 01/29/2023] Open
Abstract
The past 40 years in Southeast Asia have seen about 50% of lowland rainforests converted to oil palm and other plantations, and much of the remaining forest heavily logged. Little is known about how fragmentation influences recovery and whether climate change will hamper restoration. Here, we use repeat airborne LiDAR surveys spanning the hot and dry 2015-16 El Niño Southern Oscillation event to measure canopy height growth across 3,300 ha of regenerating tropical forests spanning a logging intensity gradient in Malaysian Borneo. We show that the drought led to increased leaf shedding and branch fall. Short forest, regenerating after heavy logging, continued to grow despite higher evaporative demand, except when it was located close to oil palm plantations. Edge effects from the plantations extended over 300 metres into the forests. Forest growth on hilltops and slopes was particularly impacted by the combination of fragmentation and drought, but even riparian forests located within 40 m of oil palm plantations lost canopy height during the drought. Our results suggest that small patches of logged forest within plantation landscapes will be slow to recover, particularly as ENSO events are becoming more frequent. It is unclear whether tropical forest fragments within plantation landscapes are resilient to drought. Here the authors analyse LiDAR and ground-based data from the 2015-16 El Niño event across a logging intensity gradient in Borneo. Although regenerating forests continued to grow, canopy height near oil palm plantations decreased, and a strong edge effect extended up to at least 300 m away.
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Affiliation(s)
- Matheus Henrique Nunes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK. .,Department of Geosciences and Geography, University of Helsinki, Helsinki, 00014, Finland.
| | - Tommaso Jucker
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.,School of Biological Sciences, University of Bristol, Bristol, BS8 1TH, UK
| | - Terhi Riutta
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK.,School of Geography and the Environment, Environmental Change Institute, University of Oxford, Oxford, OX1 3QY, UK
| | - Martin Svátek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Jakub Kvasnica
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Martin Rejžek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Radim Matula
- Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague, 165 00, Czech Republic
| | | | - Robert M Ewers
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK
| | - Tom Swinfield
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK
| | - Rubén Valbuena
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.,School of Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UK
| | - Nicholas R Vaughn
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe AZ and Hilo, Tempe, HI, USA
| | - Gregory P Asner
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe AZ and Hilo, Tempe, HI, USA
| | - David A Coomes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.
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45
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Ng CKC, Payne J, Oram F. Small habitat matrix: How does it work? AMBIO 2021; 50:601-614. [PMID: 32915445 PMCID: PMC7882646 DOI: 10.1007/s13280-020-01384-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/07/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
We present herein our perspective of a novel Small Habitats Matrix (SHM) concept showing how small habitats on private lands are untapped but can be valuable for mitigating ecological degradation. Grounded by the realities in Sabah, Malaysian Borneo, we model a discontinuous "stepping stones" linkage that includes both terrestrial and aquatic habitats to illustrate exactly how the SHM can be deployed. Taken together, the SHM is expected to optimize the meta-population vitality in monoculture landscapes for aerial, arboreal, terrestrial and aquatic wildlife communities. We also provide the tangible cost estimates and discuss how such a concept is both economically affordable and plausible to complement global conservation initiatives. By proposing a practical approach to conservation in the rapidly developing tropics, we present a perspective from "ground zero" that reaches out to fellow scientists, funders, activists and pro-environmental land owners who often ask, "What more can we do?"
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Affiliation(s)
- Casey Keat-Chuan Ng
- Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar Barat, 31900 Kampar, Malaysia
| | - John Payne
- Borneo Rhino Alliance (BORA), Faculty Sains dan Sumber Alam, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Malaysia
| | - Felicity Oram
- PONGO Alliance, Units S10-12, 1st Floor, The Peak Vista, Block B Lorong Puncak 1, Tanjung Lipat, 88400 Kota Kinabalu, Malaysia
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Espinoza-Toledo A, Mendoza-Carranza M, Castillo MM, Barba-Macías E, Capps KA. Taxonomic and functional responses of macroinvertebrates to riparian forest conversion in tropical streams. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143972. [PMID: 33321337 DOI: 10.1016/j.scitotenv.2020.143972] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/09/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
Land use change threatens the ecological integrity of tropical rivers and streams; however, few studies have simultaneously analyzed the taxonomic and functional responses of tropical macroinvertebrates to riparian forest conversion. Here, we used community structure, functional diversity, and stable isotope analyses to assess the impacts of riparian deforestation on macroinvertebrate communities of streams in southern Mexico. Monthly sampling during the dry season was conducted in streams with riparian forest (forest streams), and in streams with pasture dominating the riparian vegetation (pasture streams). Samples were collected for water quality (physical-chemical variables, nutrient concentrations, and total suspended solids), organic matter (leaf litter abundance and algal biomass), and macroinvertebrate abundance and diversity. Higher temperature, conductivity, suspended solids, and chlorophyll a were detected in pasture streams, while nitrate concentrations and leaf litter biomass were greater in forest streams. Macroinvertebrate density was higher in pasture sites, while no differences in taxonomic diversity and richness were found between land uses. Functional evenness was greater in forest streams, while richness and divergence were similar between land uses, despite differences in taxonomic composition. Environmental variables were associated with taxa distribution but not with functional traits, suggesting current conditions still promote redundancy in ecological function. Isotopic analyses indicated consumers in pasture streams were enriched in 13C and 15N relative to forest streams, potentially reflecting the higher algal biomass documented in pasture systems. Isotopic niches were broader and more overlapped in pasture streams, indicating more generalist feeding habits. No significant losses of taxonomic or functional diversity were detected in pasture streams. However, changes in trophic ecology suggest landscape-level processes are altering macroinvertebrate feeding habits in streams. The changes we observed in habitat, water quality, and macroinvertebrate community were related to the removal of the riparian vegetation, suggesting the structure and function of the focal systems would benefit from riparian restoration.
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Affiliation(s)
- Andrea Espinoza-Toledo
- Departamento de Ciencias de la Sustentabilidad, El Colegio de la Frontera Sur, Unidad Villahermosa, Carretera Villahermosa-Reforma Km 15.5, Ranchería Guineo, 2da. Sección, CP 86280 Villahermosa, Tabasco, Mexico
| | - Manuel Mendoza-Carranza
- Departamento de Ciencias de la Sustentabilidad, El Colegio de la Frontera Sur, Unidad Villahermosa, Carretera Villahermosa-Reforma Km 15.5, Ranchería Guineo, 2da. Sección, CP 86280 Villahermosa, Tabasco, Mexico
| | - María M Castillo
- Departamento de Ciencias de la Sustentabilidad, El Colegio de la Frontera Sur, Unidad Villahermosa, Carretera Villahermosa-Reforma Km 15.5, Ranchería Guineo, 2da. Sección, CP 86280 Villahermosa, Tabasco, Mexico.
| | - Everardo Barba-Macías
- Departamento de Ciencias de la Sustentabilidad, El Colegio de la Frontera Sur, Unidad Villahermosa, Carretera Villahermosa-Reforma Km 15.5, Ranchería Guineo, 2da. Sección, CP 86280 Villahermosa, Tabasco, Mexico
| | - Krista A Capps
- Odum School of Ecology, University of Georgia, Athens, GA, USA; Savannah River Ecology Laboratory, University of Georgia, Aiken, SC, USA
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Abstract
With 15–20% of Indonesian oil palms located, without a legal basis and permits, within the forest zone (‘Kawasan hutan’), international concerns regarding deforestation affect the totality of Indonesian palm oil export. ‘Forest zone oil palm’ (FZ-OP) is a substantive issue that requires analysis and policy change. While spatial details of FZ-OP remain contested, we review literature on (1) the legal basis of the forest zone and its conversion, (2) social stratification in oil palm production (large-scale, plasma and independent growers), and (3) environmental consequences of forest conversion to FZ-OP, before discussing policy options in a range of social and ecological contexts. Policy options range from full regularization (as FZ-OP stands could meet international forest definitions), to conditional acceptance of diversified smallholder plantings in ‘agroforestry concessions’, to gradually phasing out FZ-OP and eviction/destruction. A nuanced and differentiated approach to FZ-OP is needed, as certification of legality along supply chains is vulnerable to illegal levies and corruption. Corporate actors trading internationally can avoid use of uncertified raw materials, effectively shifting blame and depressing farmgate prices for domestic-market palm oil, but this will not return forest conditions or stop further forest conversion. We discuss an agenda for follow-up policy research.
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Yan J, Gao S, Xu M, Su F. Spatial-temporal changes of forests and agricultural lands in Malaysia from 1990 to 2017. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:803. [PMID: 33263164 DOI: 10.1007/s10661-020-08765-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Forests and agricultural lands are the main resources on the earth's surface and important indicators of regional ecological environments. In this paper, Landsat images from 1990 and 2017 were used to extract information on forests in Malaysia based on a remote-sensing classification method. The spatial-temporal changes of forests and agricultural lands in Malaysia between 1990 and 2017 were analyzed. The results showed that the natural forests in Malaysia decreased by 441 Mha, a reduction of 21%. The natural forests were mainly converted into plantations in Peninsular Malaysia and plantations and secondary forests in East Malaysia. The area of agricultural lands in Malaysia increased by 55.7%, in which paddy fields increased by 1.1% and plantations increased by 98.2%. Paddy fields in Peninsular Malaysia are mainly distributed in the north-central coast and the Kelantan Delta. The agricultural land in East Malaysia is dominated by plantations, which are mainly distributed in coastal areas. The predictable areas of possible expansion for paddy fields in Peninsular Malaysia's Kelantan (45.2%) and Kedah (16.8%) areas in the future are large, and in addition, the plantations in Sarawak (44.7%) and Sabah (29.6%) of East Malaysia have large areas for expansion. The contradiction between agricultural development and protecting the ecological environment is increasingly prominent. The demand for agriculture is expected to increase further and result in greater pressures on tropical forests. Governments also need to encourage farmers to carry out existing land development, land recultivation, or cooperative development to improve agricultural efficiency and reduce the damage to natural forests.
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Affiliation(s)
- Jinfeng Yan
- College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, 266590, China.
| | - Shanshan Gao
- College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Meirong Xu
- College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Fenzhen Su
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
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49
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Meijaard E, Brooks TM, Carlson KM, Slade EM, Garcia-Ulloa J, Gaveau DLA, Lee JSH, Santika T, Juffe-Bignoli D, Struebig MJ, Wich SA, Ancrenaz M, Koh LP, Zamira N, Abrams JF, Prins HHT, Sendashonga CN, Murdiyarso D, Furumo PR, Macfarlane N, Hoffmann R, Persio M, Descals A, Szantoi Z, Sheil D. The environmental impacts of palm oil in context. NATURE PLANTS 2020; 6:1418-1426. [PMID: 33299148 DOI: 10.1038/s41477-020-00813-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 10/29/2020] [Indexed: 05/12/2023]
Abstract
Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils and, in particular, palm oil, illustrates these competing demands and trade-offs. Palm oil accounts for ~40% of the current global annual demand for vegetable oil as food, animal feed and fuel (210 Mt), but planted oil palm covers less than 5-5.5% of the total global oil crop area (approximately 425 Mha) due to oil palm's relatively high yields. Recent oil palm expansion in forested regions of Borneo, Sumatra and the Malay Peninsula, where >90% of global palm oil is produced, has led to substantial concern around oil palm's role in deforestation. Oil palm expansion's direct contribution to regional tropical deforestation varies widely, ranging from an estimated 3% in West Africa to 50% in Malaysian Borneo. Oil palm is also implicated in peatland draining and burning in Southeast Asia. Documented negative environmental impacts from such expansion include biodiversity declines, greenhouse gas emissions and air pollution. However, oil palm generally produces more oil per area than other oil crops, is often economically viable in sites unsuitable for most other crops and generates considerable wealth for at least some actors. Global demand for vegetable oils is projected to increase by 46% by 2050. Meeting this demand through additional expansion of oil palm versus other vegetable oil crops will lead to substantial differential effects on biodiversity, food security, climate change, land degradation and livelihoods. Our Review highlights that although substantial gaps remain in our understanding of the relationship between the environmental, socio-cultural and economic impacts of oil palm, and the scope, stringency and effectiveness of initiatives to address these, there has been little research into the impacts and trade-offs of other vegetable oil crops. Greater research attention needs to be given to investigating the impacts of palm oil production compared to alternatives for the trade-offs to be assessed at a global scale.
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Affiliation(s)
- Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, Brunei.
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK.
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia.
| | - Thomas M Brooks
- Science and Knowledge Unit, IUCN, Gland, Switzerland
- World Agroforestry Center (ICRAF), University of The Philippines Los Baños, Laguna, The Philippines
- Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Kimberly M Carlson
- Department of Natural Resources and Environmental Management, University of Hawai'i Mānoa, Honolulu, HI, USA
- Department of Environmental Studies, New York University, New York, NY, USA
| | - Eleanor M Slade
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - John Garcia-Ulloa
- Department of Environmental Systems Science, ETH Zürich, Zurich, Switzerland
| | | | - Janice Ser Huay Lee
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - Truly Santika
- Borneo Futures, Bandar Seri Begawan, Brunei
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Diego Juffe-Bignoli
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
- UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC), Cambridge, UK
| | - Matthew J Struebig
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Serge A Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei
- Kinabatangan Orang-Utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Lian Pin Koh
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | | | - Jesse F Abrams
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Global Systems Institute and Institute for Data Science and Artificial Intelligence, University of Exeter, Exeter, UK
| | - Herbert H T Prins
- Animal Sciences Group, Wageningen University, Wageningen, the Netherlands
| | | | - Daniel Murdiyarso
- Center for International Forestry Research, Bogor, Indonesia
- Department of Geophysics and Meteorology, IPB University, Bogor, Indonesia
| | - Paul R Furumo
- Earth System Science, Stanford University, Stanford, CA, USA
| | | | - Rachel Hoffmann
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Marcos Persio
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Adrià Descals
- Centre de Recerca Ecològica i Aplicacions Forestals, Cerdanyola del Vallès, Barcelona, Spain
| | - Zoltan Szantoi
- European Commission, Joint Research Centre, Ispra, Italy
- Stellenbosch University, Stellenbosch, South Africa
| | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
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50
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Meijaard E, Brooks TM, Carlson KM, Slade EM, Garcia-Ulloa J, Gaveau DLA, Lee JSH, Santika T, Juffe-Bignoli D, Struebig MJ, Wich SA, Ancrenaz M, Koh LP, Zamira N, Abrams JF, Prins HHT, Sendashonga CN, Murdiyarso D, Furumo PR, Macfarlane N, Hoffmann R, Persio M, Descals A, Szantoi Z, Sheil D. The environmental impacts of palm oil in context. NATURE PLANTS 2020. [PMID: 33299148 DOI: 10.31223/osf.io/e69bz] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils and, in particular, palm oil, illustrates these competing demands and trade-offs. Palm oil accounts for ~40% of the current global annual demand for vegetable oil as food, animal feed and fuel (210 Mt), but planted oil palm covers less than 5-5.5% of the total global oil crop area (approximately 425 Mha) due to oil palm's relatively high yields. Recent oil palm expansion in forested regions of Borneo, Sumatra and the Malay Peninsula, where >90% of global palm oil is produced, has led to substantial concern around oil palm's role in deforestation. Oil palm expansion's direct contribution to regional tropical deforestation varies widely, ranging from an estimated 3% in West Africa to 50% in Malaysian Borneo. Oil palm is also implicated in peatland draining and burning in Southeast Asia. Documented negative environmental impacts from such expansion include biodiversity declines, greenhouse gas emissions and air pollution. However, oil palm generally produces more oil per area than other oil crops, is often economically viable in sites unsuitable for most other crops and generates considerable wealth for at least some actors. Global demand for vegetable oils is projected to increase by 46% by 2050. Meeting this demand through additional expansion of oil palm versus other vegetable oil crops will lead to substantial differential effects on biodiversity, food security, climate change, land degradation and livelihoods. Our Review highlights that although substantial gaps remain in our understanding of the relationship between the environmental, socio-cultural and economic impacts of oil palm, and the scope, stringency and effectiveness of initiatives to address these, there has been little research into the impacts and trade-offs of other vegetable oil crops. Greater research attention needs to be given to investigating the impacts of palm oil production compared to alternatives for the trade-offs to be assessed at a global scale.
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Affiliation(s)
- Erik Meijaard
- Borneo Futures, Bandar Seri Begawan, Brunei.
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK.
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia.
| | - Thomas M Brooks
- Science and Knowledge Unit, IUCN, Gland, Switzerland
- World Agroforestry Center (ICRAF), University of The Philippines Los Baños, Laguna, The Philippines
- Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Kimberly M Carlson
- Department of Natural Resources and Environmental Management, University of Hawai'i Mānoa, Honolulu, HI, USA
- Department of Environmental Studies, New York University, New York, NY, USA
| | - Eleanor M Slade
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - John Garcia-Ulloa
- Department of Environmental Systems Science, ETH Zürich, Zurich, Switzerland
| | | | - Janice Ser Huay Lee
- Asian School of the Environment, Nanyang Technological University of Singapore, Singapore, Singapore
| | - Truly Santika
- Borneo Futures, Bandar Seri Begawan, Brunei
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Diego Juffe-Bignoli
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
- UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC), Cambridge, UK
| | - Matthew J Struebig
- Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, UK
| | - Serge A Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - Marc Ancrenaz
- Borneo Futures, Bandar Seri Begawan, Brunei
- Kinabatangan Orang-Utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia
| | - Lian Pin Koh
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | | | - Jesse F Abrams
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Global Systems Institute and Institute for Data Science and Artificial Intelligence, University of Exeter, Exeter, UK
| | - Herbert H T Prins
- Animal Sciences Group, Wageningen University, Wageningen, the Netherlands
| | | | - Daniel Murdiyarso
- Center for International Forestry Research, Bogor, Indonesia
- Department of Geophysics and Meteorology, IPB University, Bogor, Indonesia
| | - Paul R Furumo
- Earth System Science, Stanford University, Stanford, CA, USA
| | | | - Rachel Hoffmann
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Marcos Persio
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Adrià Descals
- Centre de Recerca Ecològica i Aplicacions Forestals, Cerdanyola del Vallès, Barcelona, Spain
| | - Zoltan Szantoi
- European Commission, Joint Research Centre, Ispra, Italy
- Stellenbosch University, Stellenbosch, South Africa
| | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
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