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Assessing multitemporal calibration for species distribution models. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Spatial Distribution of Precise Suitability of Plantation: A Case Study of Main Coniferous Forests in Hubei Province, China. LAND 2022. [DOI: 10.3390/land11050690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
(1) Background. Conifers are the main plantation species in southern China, including Masson Pine (MP), Chinese fir (CF) and Chinese thuja (CT). Clarifying the suitable site conditions for these conifers is helpful for large-area afforestation, so as to manage forests to provide a higher level of ecosystem services. To achieve the research goals, we take the conifers in Hubei Province of southern China as a case study. (2) Methods. The situations of conifers, as well as environmental conditions of 448 sampling plots, were then investigated. The suitable growth environment of conifers in the studied area was determined by the maximum entropy algorithm, and the suitability spatial distribution of coniferous forests at the provincial level was also analyzed. (3) Results. The effect of the conifers suitability prediction model reached an accurate level, where AUC values of MP, CF and CT training set were 0.828, 0.856 and 0.970, respectively. Among multiple environmental factors, such as geography and climate, altitude is the most important factor affecting conifer growth. The contribution of altitude to the growth suitability of MP, CF and CT was 38.1%, 36.2% and 36.1%, respectively. Suitable areas of MP, CF and CT were 97,400 ha, 74,300 ha and 39,900 ha, accounting for 52.45%, 39.97% and 21.46% of the studied area, respectively. We concluded that the suitable site conditions of conifer plantations were 2800-5600 oC annual accumulated temperature, 40-1680 m a.s.l., and < 40° slopes. (4) Conclusions. The study suggests that accurate spatial suitability evaluation should be carried out to provide sufficient support for the large-area afforestation in southern China. However, due to our data and study area limitations, further studies are needed to explore the above findings for a full set of plantation species in an extensive area of southern China.
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Bryn A, Bekkby T, Rinde E, Gundersen H, Halvorsen R. Reliability in Distribution Modeling—A Synthesis and Step-by-Step Guidelines for Improved Practice. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.658713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Information about the distribution of a study object (e.g., species or habitat) is essential in face of increasing pressure from land or sea use, and climate change. Distribution models are instrumental for acquiring such information, but also encumbered by uncertainties caused by different sources of error, bias and inaccuracy that need to be dealt with. In this paper we identify the most common sources of uncertainties and link them to different phases in the modeling process. Our aim is to outline the implications of these uncertainties for the reliability of distribution models and to summarize the precautions needed to be taken. We performed a step-by-step assessment of errors, biases and inaccuracies related to the five main steps in a standard distribution modeling process: (1) ecological understanding, assumptions and problem formulation; (2) data collection and preparation; (3) choice of modeling method, model tuning and parameterization; (4) evaluation of models; and, finally, (5) implementation and use. Our synthesis highlights the need to consider the entire distribution modeling process when the reliability and applicability of the models are assessed. A key recommendation is to evaluate the model properly by use of a dataset that is collected independently of the training data. We support initiatives to establish international protocols and open geodatabases for distribution models.
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Shen Y, Liu M, Wang D, Shen X, Li S. Using an integrative mapping approach to identify the distribution range and conservation needs of a large threatened mammal, the Asiatic black bear, in China. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Sillero N, Arenas-Castro S, Enriquez‐Urzelai U, Vale CG, Sousa-Guedes D, Martínez-Freiría F, Real R, Barbosa A. Want to model a species niche? A step-by-step guideline on correlative ecological niche modelling. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2021.109671] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hendrickx A, Marsboom C, Rinaldi L, Vineer HR, Morgoglione ME, Sotiraki S, Cringoli G, Claerebout E, Hendrickx G. Constraints of using historical data for modelling the spatial distribution of helminth parasites in ruminants. ACTA ACUST UNITED AC 2021; 28:46. [PMID: 34047693 PMCID: PMC8162060 DOI: 10.1051/parasite/2021042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 04/26/2021] [Indexed: 11/23/2022]
Abstract
Dicrocoelium dendriticum is a trematode that infects ruminant livestock and requires two different intermediate hosts to complete its lifecycle. Modelling the spatial distribution of this parasite can help to improve its management in higher risk regions. The aim of this research was to assess the constraints of using historical data sets when modelling the spatial distribution of helminth parasites in ruminants. A parasitological data set provided by CREMOPAR (Napoli, Italy) and covering most of Italy was used in this paper. A baseline model (Random Forest, VECMAP®) using the entire data set was first used to determine the minimal number of data points needed to build a stable model. Then, annual distribution models were computed and compared with the baseline model. The best prediction rate and statistical output were obtained for 2012 and the worst for 2016, even though the sample size of the former was significantly smaller than the latter. We discuss how this may be explained by the fact that in 2012, the samples were more evenly geographically distributed, whilst in 2016 most of the data were strongly clustered. It is concluded that the spatial distribution of the input data appears to be more important than the actual sample size when computing species distribution models. This is often a major issue when using historical data to develop spatial models. Such data sets often include sampling biases and large geographical gaps. If this bias is not corrected, the spatial distribution model outputs may display the sampling effort rather than the real species distribution.
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Affiliation(s)
- Alizée Hendrickx
- Department of Research and Development, Avia-GIS NV, 2980 Zoersel, Belgium
| | - Cedric Marsboom
- Department of Research and Development, Avia-GIS NV, 2980 Zoersel, Belgium
| | - Laura Rinaldi
- CREMOPAR, Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy
| | - Hannah Rose Vineer
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, L69 7ZX Liverpool, United Kingdom
| | - Maria Elena Morgoglione
- CREMOPAR, Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy
| | - Smaragda Sotiraki
- Parasitology Laboratory, Veterinary Research Institute, Hellenic Agricultural Organization DEMETER, 57001 Thessaloniki, Greece
| | - Giuseppe Cringoli
- CREMOPAR, Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy
| | - Edwin Claerebout
- Laboratory for Parasitology, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Guy Hendrickx
- Department of Research and Development, Avia-GIS NV, 2980 Zoersel, Belgium
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Diazgranados M, Tovar C, Etherington TR, Rodríguez-Zorro PA, Castellanos-Castro C, Galvis Rueda M, Flantua SGA. Ecosystem services show variable responses to future climate conditions in the Colombian páramos. PeerJ 2021; 9:e11370. [PMID: 33987031 PMCID: PMC8101452 DOI: 10.7717/peerj.11370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 04/07/2021] [Indexed: 11/23/2022] Open
Abstract
Background The páramos, the high-elevation ecosystems of the northern Andes, are well-known for their high species richness and provide a variety of ecosystem services to local subsistence-based communities and regional urbanizations. Climate change is expected to negatively affect the provision of these services, but the level of this impact is still unclear. Here we assess future climate change impact on the ecosystem services provided by the critically important páramos of the department of Boyacá in Colombia, of which over 25% of its territory is páramo. Methods We first performed an extensive literature review to identify useful species of Boyacá, and selected 103 key plant species that, based on their uses, support the provision of ecosystem services in the páramos. We collated occurrence information for each key species and using a Mahalanobis distance approach we applied climate niche modelling for current and future conditions. Results We show an overall tendency of reduction in area for all ecosystem services under future climate conditions (mostly a loss of 10% but reaching up to a loss of 40%), but we observe also increases, and responses differ in intensity loss. Services such as Food for animals, Material and Medicinal, show a high range of changes that includes both positive and negative outcomes, while for Food for humans the responses are mostly substantially negative. Responses are less extreme than those projected for individual species but are often complex because a given ecosystem service is provided by several species. As the level of functional or ecological redundancy between species is not yet known, there is an urgency to expand our knowledge on páramos ecosystem services for more species. Our results are crucial for decision-makers, social and conservation organizations to support sustainable strategies to monitor and mitigate the potential consequences of climate change for human livelihoods in mountainous settings.
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Affiliation(s)
- Mauricio Diazgranados
- Natural Capital and Plant Health Department, Royal Botanic Gardens, Kew, Ardingly, West Sussex, United Kingdom
| | - Carolina Tovar
- Biodiversity Informatics and Spatial Analysis, Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom
| | - Thomas R Etherington
- Biodiversity Informatics and Spatial Analysis, Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom.,Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - Paula A Rodríguez-Zorro
- Institut des Sciences de l'Évolution Montpellier (ISEM), Université de Montpellier, Montpellier, France
| | - Carolina Castellanos-Castro
- Ciencias Básicas de la Biodiversidad, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - Manuel Galvis Rueda
- Departamento de Biología, Grupo de Investigación en Estudios Micro y Macro Ambientales (MICRAM), Universidad Tecnológica y Pedagógica de Colombia, Tunja, Colombia
| | - Suzette G A Flantua
- Natural Capital and Plant Health Department, Royal Botanic Gardens, Kew, Ardingly, West Sussex, United Kingdom.,Institute for Biodiversity & Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands.,Department of Biological Sciences, University of Bergen, Bergen, Norway
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Moua Y, Roux E, Seyler F, Briolant S. Correcting the effect of sampling bias in species distribution modeling – A new method in the case of a low number of presence data. ECOL INFORM 2020. [DOI: 10.1016/j.ecoinf.2020.101086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Poirazidis K, Bontzorlos V, Xofis P, Zakkak S, Xirouchakis S, Grigoriadou E, Kechagioglou S, Gasteratos I, Alivizatos H, Panagiotopoulou M. Bioclimatic and environmental suitability models for capercaillie (Tetrao urogallus) conservation: Identification of optimal and marginal areas in Rodopi Mountain-Range National Park (Northern Greece). Glob Ecol Conserv 2019. [DOI: 10.1016/j.gecco.2019.e00526] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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10
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The Potential Distribution of Tree Species in Three Periods of Time under a Climate Change Scenario. FORESTS 2018. [DOI: 10.3390/f9100628] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Species distribution models have become some of the most important tools for assessment of impact of climatic change, impact of human activity and for the detection of failure in silvicultural or conservation management plans. In this study, we modeled the potential distribution of 13 tree species of temperate forests distributed in the Mexican state Durango in the Sierra Madre Occidental, for three periods of time. Models were constructed for each period of time using 19 climate variables from the MaxEnt (Maximum Entropy algorithm) modelling algorithm. Those constructed for the future used a severe climate change scenario. When comparing the potential areas of the periods, some species such as Pinus durangensis (Martínez), Pinus teocote (Schiede ex Schltdl. & Cham.) and Quercus crassifolia (Bonpl.) showed no drastic changes. Rather, the models projected a slight reduction, displacement or fragmentation in the potential area of Pinus arizonica (Engelm.), P. cembroides (Zucc), P. engelmanni (Carr), P. leiophylla (Schl), Quercus arizonica (Sarg), Q. magnolifolia (Née) and Q. sideroxila (Humb. & Bonpl.) in the future period. Thus, establishing conservation and reforestation strategies in the medium and long term could guarantee a wide distribution of these species in the future.
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Cerdeira JO, Monteiro‐Henriques T, Martins MJ, Silva PC, Alagador D, Franco AMA, Campagnolo ML, Arsénio P, Aguiar FC, Cabeza M. Revisiting niche fundamentals with Tukey depth. Methods Ecol Evol 2018. [DOI: 10.1111/2041-210x.13074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jorge Orestes Cerdeira
- Departamento de Matemática and Centro de Matemática e AplicaçõesFaculdade de Ciências e TecnologiaUniversidade Nova de Lisboa Caparica Portugal
| | - Tiago Monteiro‐Henriques
- Centro de Investigação e de Tecnologias Agroambientais e BiológicasCITABUniversidade de Trás‐os‐Montes e Alto Douro Vila Real Portugal
| | - Maria João Martins
- Centro de Estudos FlorestaisCEFInstituto Superior de AgronomiaUniversidade de Lisboa Lisboa Portugal
| | - Pedro C. Silva
- Centro de Estudos FlorestaisCEFInstituto Superior de AgronomiaUniversidade de Lisboa Lisboa Portugal
| | - Diogo Alagador
- CIBIO/InBio‐UE: Centro de Investigação em Biodiversidade e Recursos GenéticosUniversidade de Évora Évora Portugal
| | | | - Manuel L. Campagnolo
- Centro de Estudos FlorestaisCEFInstituto Superior de AgronomiaUniversidade de Lisboa Lisboa Portugal
| | - Pedro Arsénio
- Linking LandscapeEnvironment, Agriculture and FoodLEAFInstituto Superior de AgronomiaUniversidade de Lisboa Lisboa Portugal
| | - Francisca C. Aguiar
- Centro de Estudos FlorestaisCEFInstituto Superior de AgronomiaUniversidade de Lisboa Lisboa Portugal
| | - Mar Cabeza
- Centre of Excellence in Metapopulation ResearchDepartment of BiosciencesUniversity of Helsinki Helsinki Finland
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Wang P, Liu Y, Liu Y, Chang Y, Wang N, Zhang Z. The role of niche divergence and geographic arrangement in the speciation of Eared Pheasants (Crossoptilon, Hodgson 1938). Mol Phylogenet Evol 2017; 113:1-8. [PMID: 28487259 DOI: 10.1016/j.ympev.2017.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 04/28/2017] [Accepted: 05/04/2017] [Indexed: 10/19/2022]
Abstract
One of the most contentious theories in current ecology is the ecological niche conservatism, which is defined as conservatism among closely related species; however, the ecological niche can also be shifted, as documented in several cases. Genetic drift and ecological divergent selection may cause ecological niche divergence. The current study aims to test whether the ecological niche is conserved or divergent and to determine the main factor that drives ecological niche divergence or conservation. We analyzed the phylogenetic relationship, ecological niche model (ENM) and demographic history of Eared Pheasants in the genus Crossoptilon (Galliformes: Phasianidae) to test niche conservatism with respect to different geographically distributed patterns. The phylogenetic relationship was reconstructed using ∗BEAST with mitochondrial cytochrome b (cyt b) and 44 unlinked autosomal exonic loci, and ENMs were reconstructed in MAXENT using an average of 41 occurrence sites in each species and 22 bioclimatic variables. A background similarity test was used to detect whether the ecological niche is conserved. Demographic history was estimated using the isolation with migration (IM) model. We found that there was asymmetric gene flow between the allopatric sister species Crossoptilon mantchuricum and C. auritum and the parapatric sister species C. harmani and C. crossoptilon. We found that ecological niches were divergent, not conserved, between C. mantchuricum and C. auritum, which began to diverge at approximately 0.3 million years ago. However, the ecological niches were conserved between C. crossoptilon and C. harmani, which gradually diverged approximately half a million years ago. Ecological niches can be either conserved or divergent, and ecological divergent selection for local adaptation is probably an important factor that promotes and maintains niche divergence in the face of gene flow. This study provides a better understanding of the role that divergent selection has in the initial speciation process. The platform combined demographic processes and ecological niches to offer new insights into the mechanism of biogeography patterns.
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Affiliation(s)
- Pengcheng Wang
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, PR China
| | - Yang Liu
- State Key Laboratory of Biocontrol, College of Ecology and Evolution/School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Yinong Liu
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, PR China; Beijing National Day School, Beijing 100039, PR China
| | - Yajing Chang
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, PR China
| | - Nan Wang
- School of Nature Conservation, Beijing Forestry University, Beijing 100083, PR China
| | - Zhengwang Zhang
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875, PR China.
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Jiang H, Liu T, Li L, Zhao Y, Pei L, Zhao J. Predicting the Potential Distribution of Polygala tenuifolia Willd. under Climate Change in China. PLoS One 2016; 11:e0163718. [PMID: 27661983 PMCID: PMC5035090 DOI: 10.1371/journal.pone.0163718] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 09/13/2016] [Indexed: 12/14/2022] Open
Abstract
Global warming has created opportunities and challenges for the survival and development of species. Determining how climate change may impact multiple ecosystem levels and lead to various species adaptations is necessary for both biodiversity conservation and sustainable biological resource utilization. In this study, we employed Maxent to predict changes in the habitat range and altitude of Polygala tenuifolia Willd. under current and future climate scenarios in China. Four representative concentration pathways (RCP2.6, RCP4.5, RCP6.0, and RCP8.5) were modeled for two time periods (2050 and 2070). The model inputs included 732 presence points and nine sets of environmental variables under the current conditions and the four RCPs in 2050 and 2070. The area under the receiver-operating characteristic (ROC) curve (AUC) was used to evaluate model performance. All of the AUCs were greater than 0.80, thereby placing these models in the "very good" category. Using a jackknife analysis, the precipitation in the warmest quarter, annual mean temperature, and altitude were found to be the top three variables that affect the range of P. tenuifolia. Additionally, we found that the predicted highly suitable habitat was in reasonable agreement with its actual distribution. Furthermore, the highly suitable habitat area was slowly reduced over time.
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Affiliation(s)
- Hongjun Jiang
- College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China
- Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang, Hebei, China
| | - Ting Liu
- College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Lin Li
- College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Yao Zhao
- College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Lin Pei
- Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, China
| | - Jiancheng Zhao
- College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China
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Zhong X, Duckham M, Chong D, Tolhurst K. Real-time estimation of wildfire perimeters from curated crowdsourcing. Sci Rep 2016; 6:24206. [PMID: 27063569 PMCID: PMC4827086 DOI: 10.1038/srep24206] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/21/2016] [Indexed: 12/01/2022] Open
Abstract
Real-time information about the spatial extents of evolving natural disasters, such as wildfire or flood perimeters, can assist both emergency responders and the general public during an emergency. However, authoritative information sources can suffer from bottlenecks and delays, while user-generated social media data usually lacks the necessary structure and trustworthiness for reliable automated processing. This paper describes and evaluates an automated technique for real-time tracking of wildfire perimeters based on publicly available “curated” crowdsourced data about telephone calls to the emergency services. Our technique is based on established data mining tools, and can be adjusted using a small number of intuitive parameters. Experiments using data from the devastating Black Saturday wildfires (2009) in Victoria, Australia, demonstrate the potential for the technique to detect and track wildfire perimeters automatically, in real time, and with moderate accuracy. Accuracy can be further increased through combination with other authoritative demographic and environmental information, such as population density and dynamic wind fields. These results are also independently validated against data from the more recent 2014 Mickleham-Dalrymple wildfires.
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Affiliation(s)
- Xu Zhong
- Department of Infrastructure Engineering, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Matt Duckham
- School of Mathematical and Geospatial Sciences, RMIT University, Victoria 3001, Australia
| | - Derek Chong
- Department of Forest and Ecosystem Science, University of Melbourne, Burnley, Victoria, 3121, Australia
| | - Kevin Tolhurst
- Department of Forest and Ecosystem Science, University of Melbourne, Creswick, Victoria, 3363, Australia
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15
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Modelling spatial distributions of alpine vegetation: A graph theory approach to delineate ecologically-consistent species assemblages. ECOL INFORM 2015. [DOI: 10.1016/j.ecoinf.2015.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Qiao H, Lin C, Jiang Z, Ji L. Marble Algorithm: a solution to estimating ecological niches from presence-only records. Sci Rep 2015; 5:14232. [PMID: 26387771 PMCID: PMC4585690 DOI: 10.1038/srep14232] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 08/20/2015] [Indexed: 11/09/2022] Open
Abstract
We describe an algorithm that helps to predict potential distributional areas for species using presence-only records. The Marble Algorithm is a density-based clustering program based on Hutchinson's concept of ecological niches as multidimensional hypervolumes in environmental space. The algorithm characterizes this niche space using the density-based spatial clustering of applications with noise (DBSCAN) algorithm. When MA is provided with a set of occurrence points in environmental space, the algorithm determines two parameters that allow the points to be grouped into several clusters. These clusters are used as reference sets describing the ecological niche, which can then be mapped onto geographic space and used as the potential distribution of the species. We used both virtual species and ten empirical datasets to compare MA with other distribution-modeling tools, including Bioclimate Analysis and Prediction System, Environmental Niche Factor Analysis, the Genetic Algorithm for Rule-set Production, Maximum Entropy Modeling, Artificial Neural Networks, Climate Space Models, Classification Tree Analysis, Generalised Additive Models, Generalised Boosted Models, Generalised Linear Models, Multivariate Adaptive Regression Splines and Random Forests. Results indicate that MA predicts potential distributional areas with high accuracy, moderate robustness, and above-average transferability on all datasets, particularly when dealing with small numbers of occurrences.
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Affiliation(s)
- Huijie Qiao
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Congtian Lin
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhigang Jiang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Liqiang Ji
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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Azevedo LB, van Zelm R, Leuven RSEW, Hendriks AJ, Huijbregts MAJ. Combined ecological risks of nitrogen and phosphorus in European freshwaters. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 200:85-92. [PMID: 25700335 DOI: 10.1016/j.envpol.2015.02.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 01/29/2015] [Accepted: 02/09/2015] [Indexed: 05/11/2023]
Abstract
Eutrophication is a key water quality issue triggered by increasing nitrogen (N) and phosphorus (P) levels and potentially posing risks to freshwater biota. We predicted the probability that an invertebrate species within a community assemblage becomes absent due to nutrient stress as the ecological risk (ER) for European lakes and streams subjected to N and P pollution from 1985 to 2011. The ER was calculated as a function of species-specific tolerances to NO3(-) and total P concentrations and water quality monitoring data. Lake and stream ER averaged 50% in the last monitored year (i.e. 2011) and we observed a decrease by 22% and 38% in lake and stream ER (respectively) of river basins since 1985. Additionally, the ER from N stress surpassed that of P in both freshwater systems. The ER can be applied to identify river basins most subjected to eutrophication risks and the main drivers of impacts.
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Affiliation(s)
- Ligia B Azevedo
- Radboud University of Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; International Institute for Applied Systems Analysis, Ecosystem Services and Management Program, Schlossplatz 1, A-2361 Laxenburg, Austria.
| | - Rosalie van Zelm
- Radboud University of Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Rob S E W Leuven
- Radboud University of Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - A Jan Hendriks
- Radboud University of Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Mark A J Huijbregts
- Radboud University of Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
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Kriticos DJ, Jarošik V, Ota N. Extending the suite ofbioclimvariables: a proposed registry system and case study using principal components analysis. Methods Ecol Evol 2014. [DOI: 10.1111/2041-210x.12244] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Darren J. Kriticos
- CSIRO Ecosystem Sciences and Biosecurity Flagship; GPO Box 1700 Canberra ACT 2601 Australia
| | - Vojtĕch Jarošik
- Department of Ecology; Faculty of Science; Charles University in Prague; Viničná 7 CZ-12844 Prague 2 Czech Republic
| | - Noboru Ota
- CSIRO Animal, Food and Health Sciences; Private Bag 5 Wembley WA 6913 Floreat Park WA Australia
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Platts PJ, Garcia RA, Hof C, Foden W, Hansen LA, Rahbek C, Burgess ND. Conservation implications of omitting narrow-ranging taxa from species distribution models, now and in the future. DIVERS DISTRIB 2014. [DOI: 10.1111/ddi.12244] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Philip J. Platts
- Environment Department; University of York; Heslington YO10 5DD York UK
| | - Raquel A. Garcia
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark
- Department of Biodiversity and Evolutionary Biology; National Museum of Natural Sciences; CSIC; Calle José Gutierrez Abascal; 28006 Madrid Spain
- Rui Nabeiro Biodiversity Chair; University of Évora; CIBIO; Largo dos Colegiais 7000 Évora Portugal
| | - Christian Hof
- Biodiversity and Climate Research Centre (BiK-F) & Senckenberg Gesellschaft für Naturforschung; Senckenberganlage 25 60325 Frankfurt Germany
| | - Wendy Foden
- School of Animal, Plant and Environmental Sciences; University of the Witwatersrand; 2050 Johannesburg South Africa
- Climate Change Specialist Group; IUCN Species Survival Commission; Gland Switzerland
| | - Louis A. Hansen
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark
| | - Carsten Rahbek
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark
- Department of Life Sciences; Faculty of Natural Sciences; Imperial College London; Silwood Park, Buckhurst Road Ascot SL5 7PY Berkshire UK
| | - Neil D. Burgess
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark
- United Nations Environment Programme World Conservation Monitoring Centre; 219 Huntingdon Road CB3 0DL Cambridge UK
- World Wildlife Fund-US; 1250 24th Street NW Washington 20037 DC USA
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Ortiz-Yusty C, Restrepo A, Páez VP. Potential Distribution of Podocnemis lewyana (Reptilia:Podocnemididae) and Its Possible Fluctuation Under Different Global Climate Change Scenarios. ACTA BIOLÓGICA COLOMBIANA 2014. [DOI: 10.15446/abc.v19n3.40909] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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21
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22
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Alvarado-Serrano DF, Knowles LL. Ecological niche models in phylogeographic studies: applications, advances and precautions. Mol Ecol Resour 2013; 14:233-48. [DOI: 10.1111/1755-0998.12184] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 10/02/2013] [Accepted: 10/04/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Diego F. Alvarado-Serrano
- Department of Ecology and Evolutionary Biology; Museum of Zoology; University of Michigan; Ann Arbor MI 48109-1079 USA
| | - L. Lacey Knowles
- Department of Ecology and Evolutionary Biology; Museum of Zoology; University of Michigan; Ann Arbor MI 48109-1079 USA
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23
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Booth TH, Nix HA, Busby JR, Hutchinson MF. bioclim: the first species distribution modelling package, its early applications and relevance to most currentMaxEntstudies. DIVERS DISTRIB 2013. [DOI: 10.1111/ddi.12144] [Citation(s) in RCA: 438] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Trevor H. Booth
- CSIRO Ecosystem Sciences and CSIRO Climate Adaptation Flagship; GPO Box 1700 Canberra ACT 2601 Australia
| | - Henry A. Nix
- Climate Change Institute; College of Medicine, Biology and Environment; Australian National University; Canberra ACT 2600 Australia
| | - John R. Busby
- CSIRO Plant Industry; Centre for Australian National Biodiversity Research; GPO Box 1600 Canberra ACT 2601 Australia
| | - Michael F. Hutchinson
- Fenner School of Environment and Society; Australian National University; Canberra ACT 0200 Australia
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Xu Z, Feng Z, Yang J, Zheng J, Zhang F. Nowhere to invade: Rumex crispus and Typha latifolia projected to disappear under future climate scenarios. PLoS One 2013; 8:e70728. [PMID: 23923020 PMCID: PMC3726609 DOI: 10.1371/journal.pone.0070728] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 06/20/2013] [Indexed: 11/19/2022] Open
Abstract
Future climate change has been predicted to affect the potential distribution of plant species. However, only few studies have addressed how invasive species may respond to future climate change despite the known effects of plant species invasion on nutrient cycles, ecosystem functions, and agricultural yields. In this study, we predicted the potential distributions of two invasive species, Rumex crispus and Typha latifolia, under current and future (2050) climatic conditions. Future climate scenarios considered in our study include A1B, A2, A2A, B1, and B2A. We found that these two species will lose their habitat under the A1B, A2, A2A, and B1 scenarios. Their distributions will be maintained under future climatic conditions related to B2A scenarios, but the total area will be less than 10% of that under the current climatic condition. We also investigated variations of the most influential climatic variables that are likely to cause habitat loss of the two species. Our results demonstrate that rising mean annual temperature, variations of the coldest quarter, and precipitation of the coldest quarter are the main factors contributing to habitat loss of R. crispus. For T. latifolia, the main factors are rising mean annual temperature, variations in temperature of the coldest quarter, mean annual precipitation, and precipitation of the coldest quarter. These results demonstrate that the warmer and wetter climatic conditions of the coldest season (or month) will be mainly responsible for habitat loss of R. crispus and T. latifolia in the future. We also discuss uncertainties related to our study (and similar studies) and suggest that particular attention should be directed toward the manner in which invasive species cope with rapid climate changes because evolutionary change can be rapid for species that invade new areas.
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Affiliation(s)
- Zhonglin Xu
- College of Resource & Environmental Science, Xinjiang University, Urumqi, China.
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25
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Stone OML, Laffan SW, Curnoe D, Herries AIR. The Spatial Distribution of Chacma Baboon (Papio ursinus) Habitat Based on an Environmental Envelope Model. INT J PRIMATOL 2013. [DOI: 10.1007/s10764-013-9669-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Rubio-Salcedo M, Martínez I, Carreño F, Escudero A. Poor effectiveness of the Natura 2000 network protecting Mediterranean lichen species. J Nat Conserv 2013. [DOI: 10.1016/j.jnc.2012.06.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Larsen PE, Gibbons SM, Gilbert JA. Modeling microbial community structure and functional diversity across time and space. FEMS Microbiol Lett 2012; 332:91-8. [PMID: 22553907 PMCID: PMC3396557 DOI: 10.1111/j.1574-6968.2012.02588.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 04/16/2012] [Accepted: 04/18/2012] [Indexed: 12/21/2022] Open
Abstract
Microbial communities exhibit exquisitely complex structure. Many aspects of this complexity, from the number of species to the total number of interactions, are currently very difficult to examine directly. However, extraordinary efforts are being made to make these systems accessible to scientific investigation. While recent advances in high-throughput sequencing technologies have improved accessibility to the taxonomic and functional diversity of complex communities, monitoring the dynamics of these systems over time and space - using appropriate experimental design - is still expensive. Fortunately, modeling can be used as a lens to focus low-resolution observations of community dynamics to enable mathematical abstractions of functional and taxonomic dynamics across space and time. Here, we review the approaches for modeling bacterial diversity at both the very large and the very small scales at which microbial systems interact with their environments. We show that modeling can help to connect biogeochemical processes to specific microbial metabolic pathways.
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28
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Rolf W, Lenz R, Peters D. Development of a quantitative ‘bioassay’ approach for ecosystem mapping. INTERNATIONAL JOURNAL OF BIODIVERSITY SCIENCE, ECOSYSTEM SERVICES & MANAGEMENT 2012. [DOI: 10.1080/21513732.2012.686121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Werner Rolf
- a Department for Landscape Architecture, Environmental and Urban Planning , Nürtingen-Geislingen University , Nürtingen , Germany
| | - Roman Lenz
- a Department for Landscape Architecture, Environmental and Urban Planning , Nürtingen-Geislingen University , Nürtingen , Germany
| | - David Peters
- b School of Zoology , University of Tasmania , Hobart , Australia
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29
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Modeling microbial communities: current, developing, and future technologies for predicting microbial community interaction. J Biotechnol 2012; 160:17-24. [PMID: 22465599 DOI: 10.1016/j.jbiotec.2012.03.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 03/07/2012] [Accepted: 03/13/2012] [Indexed: 11/21/2022]
Abstract
Never has there been a greater opportunity for investigating microbial communities. Not only are the profound effects of microbial ecology on every aspect of Earth's geochemical cycles beginning to be understood, but also the analytical and computational tools for investigating microbial Earth are undergoing a rapid revolution. This environmental microbial interactome, the system of interactions between the microbiome and the environment, has shaped the planet's past and will undoubtedly continue to do so in the future. We review recent approaches for modeling microbial community structures and the interactions of microbial populations with their environments. Different modeling approaches consider the environmental microbial interactome from different aspects, and each provides insights to different facets of microbial ecology. We discuss the challenges and opportunities for the future of microbial modeling and describe recent advances in microbial community modeling that are extending current descriptive technologies into a predictive science.
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30
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Fox NJ, Marion G, Davidson RS, White PCL, Hutchings MR. Livestock Helminths in a Changing Climate: Approaches and Restrictions to Meaningful Predictions. Animals (Basel) 2012; 2:93-107. [PMID: 26486780 PMCID: PMC4494270 DOI: 10.3390/ani2010093] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 02/27/2012] [Accepted: 03/02/2012] [Indexed: 11/17/2022] Open
Abstract
Climate change is a driving force for livestock parasite risk. This is especially true for helminths including the nematodes Haemonchus contortus, Teladorsagia circumcincta, Nematodirus battus, and the trematode Fasciola hepatica, since survival and development of free-living stages is chiefly affected by temperature and moisture. The paucity of long term predictions of helminth risk under climate change has driven us to explore optimal modelling approaches and identify current bottlenecks to generating meaningful predictions. We classify approaches as correlative or mechanistic, exploring their strengths and limitations. Climate is one aspect of a complex system and, at the farm level, husbandry has a dominant influence on helminth transmission. Continuing environmental change will necessitate the adoption of mitigation and adaptation strategies in husbandry. Long term predictive models need to have the architecture to incorporate these changes. Ultimately, an optimal modelling approach is likely to combine mechanistic processes and physiological thresholds with correlative bioclimatic modelling, incorporating changes in livestock husbandry and disease control. Irrespective of approach, the principal limitation to parasite predictions is the availability of active surveillance data and empirical data on physiological responses to climate variables. By combining improved empirical data and refined models with a broad view of the livestock system, robust projections of helminth risk can be developed.
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Affiliation(s)
- Naomi J Fox
- SAC, West Mains Road, Edinburgh, EH9 3JG, UK.
- Environment Department, University of York, Heslington, York, YO10 5DD, UK.
- Biomathematics and Statistics Scotland, Kings Buildings, Edinburgh, EH9 3JZ, UK.
| | - Glenn Marion
- Biomathematics and Statistics Scotland, Kings Buildings, Edinburgh, EH9 3JZ, UK.
| | | | - Piran C L White
- Environment Department, University of York, Heslington, York, YO10 5DD, UK.
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31
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Volis S, Dorman M, Blecher M, Sapir Y, Burdeniy L. Variation partitioning in canonical ordination reveals no effect of soil but an effect of co-occurring species on translocation success in Iris atrofusca. J Appl Ecol 2010. [DOI: 10.1111/j.1365-2664.2010.01898.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Aurambout J, Finlay K, Luck J, Beattie G. A concept model to estimate the potential distribution of the Asiatic citrus psyllid (Diaphorina citri Kuwayama) in Australia under climate change—A means for assessing biosecurity risk. Ecol Modell 2009. [DOI: 10.1016/j.ecolmodel.2009.05.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Xu Z, Zhao C, Feng Z. A study of the impact of climate change on the potential distribution of Qinghai spruce (Picea crassifolia) in Qilian Mountains. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.chnaes.2009.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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Ward G, Hastie T, Barry S, Elith J, Leathwick JR. Presence-only data and the em algorithm. Biometrics 2009; 65:554-63. [PMID: 18759851 DOI: 10.1111/j.1541-0420.2008.01116.x] [Citation(s) in RCA: 174] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
SUMMARY In ecological modeling of the habitat of a species, it can be prohibitively expensive to determine species absence. Presence-only data consist of a sample of locations with observed presences and a separate group of locations sampled from the full landscape, with unknown presences. We propose an expectation-maximization algorithm to estimate the underlying presence-absence logistic model for presence-only data. This algorithm can be used with any off-the-shelf logistic model. For models with stepwise fitting procedures, such as boosted trees, the fitting process can be accelerated by interleaving expectation steps within the procedure. Preliminary analyses based on sampling from presence-absence records of fish in New Zealand rivers illustrate that this new procedure can reduce both deviance and the shrinkage of marginal effect estimates that occur in the naive model often used in practice. Finally, it is shown that the population prevalence of a species is only identifiable when there is some unrealistic constraint on the structure of the logistic model. In practice, it is strongly recommended that an estimate of population prevalence be provided.
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Affiliation(s)
- Gill Ward
- Department of Statistics, Stanford University, California 94305, USA.
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35
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Remm K, Linder M, Remm L. Relative density of finds for assessing similarity-based maps of orchid occurrence. Ecol Modell 2009. [DOI: 10.1016/j.ecolmodel.2008.10.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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An environmental domain classification of Canada using earth observation data for biodiversity assessment. ECOL INFORM 2009. [DOI: 10.1016/j.ecoinf.2008.09.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Braunisch V, Bollmann K, Graf RF, Hirzel AH. Living on the edge—Modelling habitat suitability for species at the edge of their fundamental niche. Ecol Modell 2008. [DOI: 10.1016/j.ecolmodel.2008.02.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Gorman J, Pearson D, Whitehead P. Assisting Australian indigenous resource management and sustainable utilization of species through the use of GIS and environmental modeling techniques. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2008; 86:104-13. [PMID: 17303315 DOI: 10.1016/j.jenvman.2006.11.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2005] [Revised: 09/03/2006] [Accepted: 11/25/2006] [Indexed: 05/14/2023]
Abstract
Information on distribution and relative abundance of species is integral to sustainable management, especially if they are to be harvested for subsistence or commerce. In northern Australia, natural landscapes are vast, centers of population few, access is difficult, and Aboriginal resource centers and communities have limited funds and infrastructure. Consequently defining distribution and relative abundance by comprehensive ground survey is difficult and expensive. This highlights the need for simple, cheap, automated methodologies to predict the distribution of species in use, or having potential for use, in commercial enterprise. The technique applied here uses a Geographic Information System (GIS) to make predictions of probability of occurrence using an inductive modeling technique based on Bayes' theorem. The study area is in the Maningrida region, central Arnhem Land, in the Northern Territory, Australia. The species examined, Cycas arnhemica and Brachychiton diversifolius, are currently being 'wild harvested' in commercial trials, involving sale of decorative plants and use as carving wood, respectively. This study involved limited and relatively simple ground surveys requiring approximately 7 days of effort for each species. The overall model performance was evaluated using Cohen's kappa statistics. The predictive ability of the model for C. arnhemica was classified as moderate and for B. diversifolius as fair. The difference in model performance can be attributed to the pattern of distribution of these species. C. arnhemica tends to occur in a clumped distribution due to relatively short distance dispersal of its large seeds and vegetative growth from long-lived rhizomes, while B. diversifolius seeds are smaller and more widely dispersed across the landscape. The output from analysis predicts trends in species distribution that are consistent with independent on-site sampling for each species and therefore should prove useful in gauging the extent of resource availability. However, some caution needs to be applied as the models tend to over predict presence which is a function of distribution patterns and of other variables operating in the landscape such as fire histories which were not included in the model due to limited availability of data.
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Affiliation(s)
- Julian Gorman
- School for Environmental Research, Institute of Advanced Studies, Charles Darwin University, Darwin, Northern Territory 0909, Australia
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39
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Christenhusz MJM, Toivonen TK. Giants invading the tropics: the oriental vessel fern, Angiopteris evecta (Marattiaceae). Biol Invasions 2007. [DOI: 10.1007/s10530-007-9197-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Guisan A, Zimmermann NE, Elith J, Graham CH, Phillips S, Peterson AT. WHAT MATTERS FOR PREDICTING THE OCCURRENCES OF TREES: TECHNIQUES, DATA, OR SPECIES' CHARACTERISTICS? ECOL MONOGR 2007. [DOI: 10.1890/06-1060.1] [Citation(s) in RCA: 264] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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41
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Graham CH, Elith J, Hijmans RJ, Guisan A, Townsend Peterson A, Loiselle BA. The influence of spatial errors in species occurrence data used in distribution models. J Appl Ecol 2007. [DOI: 10.1111/j.1365-2664.2007.01408.x] [Citation(s) in RCA: 328] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sweeney A, Beebe N, Cooper R. Analysis of environmental factors influencing the range of anopheline mosquitoes in northern Australia using a genetic algorithm and data mining methods. Ecol Modell 2007. [DOI: 10.1016/j.ecolmodel.2006.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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On the relationship between the environmental history and the epidemiological situation of Argentine hemorrhagic fever. Ecol Res 2007. [DOI: 10.1007/s11284-007-0371-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Tsoar A, Allouche O, Steinitz O, Rotem D, Kadmon R. A comparative evaluation of presence‐only methods for modelling species distribution. DIVERS DISTRIB 2007. [DOI: 10.1111/j.1472-4642.2007.00346.x] [Citation(s) in RCA: 328] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
| | - Omri Allouche
- Department of Evolution, Systematics and Ecology, Institute of Life Sciences, The Hebrew University of Jerusalem, Campus Edmond Safra, Jerusalem 91904, Israel
| | - Ofer Steinitz
- Department of Evolution, Systematics and Ecology, Institute of Life Sciences, The Hebrew University of Jerusalem, Campus Edmond Safra, Jerusalem 91904, Israel
| | - Dotan Rotem
- Department of Evolution, Systematics and Ecology, Institute of Life Sciences, The Hebrew University of Jerusalem, Campus Edmond Safra, Jerusalem 91904, Israel
| | - Ronen Kadmon
- Department of Evolution, Systematics and Ecology, Institute of Life Sciences, The Hebrew University of Jerusalem, Campus Edmond Safra, Jerusalem 91904, Israel
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Otranto D, Brianti E, Cantacessi C, Lia RP, Máca J. The zoophilic fruitfly Phortica variegata: morphology, ecology and biological niche. MEDICAL AND VETERINARY ENTOMOLOGY 2006; 20:358-64. [PMID: 17199746 DOI: 10.1111/j.1365-2915.2006.00643.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Flies belonging to the subfamily Steganinae (Drosophilidae) display unusual zoophilic feeding habits at the adult and/or larval stage. Phortica variegata (Fallén) feeds on tears or eye liquid around the eyes of humans and carnivores. When feeding it is a potential vector of Thelazia callipaeda (Railliet and Henry) eyeworms. Adult and larval stages of this fly may be easily confused with other species belonging to the same genus, and little is known on the biology and ecology of P. variegata. In April-November 2005, a total of 969 P. variegata were collected in an area with a high prevalence of canine thelaziosis. The number of flies collected weekly was then related to climatic and environmental parameters (e.g. temperature, relative humidity and total rainfall) recorded daily at the collection site. The highest number of Phortica were collected during July-August. The sex ratio (number of males : females) rose from approximately 0.5 during May-July, to approximately 3.0 in August and 181 during September-October. Distributional data, representing 242 sites at which P. variegata has been collected in Europe, were analysed using a desktop implementation of the genetic algorithm for rule-set prediction (GARP) to model ecological requirements across Europe, as well as in Italy. P. variegata is shown to be mainly active at 20-25 degrees C and 50-75% RH. The ecological niche model suggests with a high degree of confidence that large areas of Europe are likely to represent suitable habitat for this species, mostly concentrated in central Europe. The results reported here contribute basic knowledge on the ecology and geographical distribution of P. variegata flies, which will be fundamental to gaining a better understanding of their role as vectors of human and animal pathogens.
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Affiliation(s)
- D Otranto
- Department of Animal Health and Welfare, Faculty of Veterinary Medicine, University of Bari, Bari, Italy.
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46
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Zalucki MP, van Klinken RD. Predicting population dynamics of weed biological control agents: science or gazing into crystal balls? ACTA ACUST UNITED AC 2006. [DOI: 10.1111/j.1440-6055.2006.00560.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Predicting habitat suitability with machine learning models: The potential area of Pinus sylvestris L. in the Iberian Peninsula. Ecol Modell 2006. [DOI: 10.1016/j.ecolmodel.2006.03.015] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Peterson AT, Lash RR, Carroll DS, Johnson KM. GEOGRAPHIC POTENTIAL FOR OUTBREAKS OF MARBURG HEMORRHAGIC FEVER. Am J Trop Med Hyg 2006; 75:9-15. [PMID: 16837700 DOI: 10.4269/ajtmh.2006.75.1.0750009] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Marburg virus represents one of the least well-known of the hemorrhagic fever-causing viruses worldwide; in particular, its geographic potential in Africa remains quite mysterious. Ecologic niche modeling was used to explore the geographic and ecologic potential of Marburg virus in Africa. Model results permitted a reinterpretation of the geographic point of infection in the initiation of the 1975 cases in Zimbabwe, and also anticipated the potential for cases in Angola, where a large outbreak recently (2004-2005) occurred. The geographic potential for additional outbreaks is outlined, including in several countries in which the virus is not known. Overall, results demonstrate that ecologic niche modeling can be a powerful tool in understanding geographic distributions of species and other biologic phenomena such as zoonotic disease transmission from natural reservoir populations.
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Affiliation(s)
- A Townsend Peterson
- Natural History Museum and Biodiversity Research Center, University of Kansas, Lawrence, Kansas 66047, USA.
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49
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Mapping the geographic distribution of Aglaia bourdillonii Gamble (Meliaceae), an endemic and threatened plant, using ecological niche modeling. PLANT CONSERVATION AND BIODIVERSITY 2006. [DOI: 10.1007/978-1-4020-6444-9_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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