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Bogoni JA, Peres CA, Navarro AB, Carvalho-Rocha V, Galetti M. Using historical habitat loss to predict contemporary mammal extirpations in Neotropical forests. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024:e14245. [PMID: 38456548 DOI: 10.1111/cobi.14245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 03/09/2024]
Abstract
Understanding which species will be extirpated in the aftermath of large-scale human disturbance is critical to mitigating biodiversity loss, particularly in hyperdiverse tropical biomes. Deforestation is the strongest driver of contemporary local extinctions in tropical forests but may occur at different tempos. The 2 most extensive tropical forest biomes in South America-the Atlantic Forest and the Amazon-have experienced historically divergent pathways of habitat loss and biodiversity decay, providing a unique case study to investigate rates of local species persistence on a single continent. We quantified medium- to large-bodied mammal species persistence across these biomes to elucidate how landscape configuration affects their persistence and associated ecological functions. We collected occurrence data for 617 assemblages of medium- to large-bodied mammal species (>1 kg) in the Atlantic Forest and the Amazon. Analyzing natural habitat cover based on satellite data (1985-2022), we employed descriptive statistics and generalized linear models (GLMs) to investigate ecospecies occurrence patterns in relation to habitat cover across the landscapes. The subregional erosion of Amazonian mammal assemblage diversity since the 1970s mirrors that observed since the colonial conquest of the Atlantic Forest, given that 52.8% of all Amazonian mammals are now on a similar trajectory. Four out of 5 large mammals in the Atlantic Forest were prone to extirpation, whereas 53% of Amazonian mammals were vulnerable to extirpation. Greater natural habitat cover increased the persistence likelihood of ecospecies in both biomes. These trends reflected a median local species loss 63.9% higher in the Atlantic Forest than in the Amazon, which appears to be moving toward a turning point of forest habitat loss and degradation. The contrasting trajectories of species persistence in the Amazon and Atlantic Forest domains underscore the importance of considering historical habitat loss pathways and regional biodiversity erosion in conservation strategies. By focusing on landscape configuration and identifying essential ecological functions associated with large vertebrate species, conservation planning and management practices can be better informed.
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Affiliation(s)
- Juliano A Bogoni
- Departamento de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
- Programa de Pós-Graduação em Ciências Ambientais, Centro de Pesquisa de Limnologia, Biodiversidade e Etnobiologia do Pantanal-CELBE, Laboratório de Mastozoologia, Universidade do Estado de Mato Grosso, Cáceres, Brazil
| | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
- Instituto Juruá, Manaus, Brazil
| | - Ana B Navarro
- Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil
| | - Vitor Carvalho-Rocha
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Mauro Galetti
- Department of Biodiversity, Center for Research in Biodiversity Dynamics and Climate Change, São Paulo State University (UNESP), Rio Claro, Brazil
- Kimberly Green Latin American and Caribbean Center, Florida International University (FIU), Miami, Florida, USA
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Fossile T, Herbst DF, McGrath K, Toso A, Giannini PCF, Milheira RG, Gilson SP, Ferreira J, Bandeira DDR, Haimovici M, Ceretta B, Bender MG, Colonese AC. Bridging archaeology and marine conservation in the Neotropics. PLoS One 2023; 18:e0285951. [PMID: 37228060 DOI: 10.1371/journal.pone.0285951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
Anthropogenic impacts on tropical and subtropical coastal environments are increasing at an alarming rate, compromising ecosystem functions, structures and services. Understanding the scale of marine population decline and diversity loss requires a long-term perspective that incorporates information from a range of sources. The Southern Atlantic Ocean represents a major gap in our understanding of pre-industrial marine species composition. Here we begin to fill this gap by performing an extensive review of the published data on Middle and Late Holocene marine fish remains along the southern coast of Brazil. This region preserves archaeological sites that are unique archives of past socio-ecological systems and pre-European biological diversity. We assessed snapshots of species compositions and relative abundances spanning the last 9500 years, and modelled differences in species' functional traits between archaeological and modern fisheries. We found evidence for both generalist and specialist fishing practices in pre-European times, with large body size and body mass caught regularly over hundreds of years. Comparison with modern catches revealed a significant decline in these functional traits, possibly associated with overfishing and escalating human impacts in recent times.
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Affiliation(s)
- Thiago Fossile
- Department of Prehistory and Institute of Environmental Science and Technology (ICTA-UAB), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
| | - Dannieli Firme Herbst
- Department of Prehistory and Institute of Environmental Science and Technology (ICTA-UAB), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
| | - Krista McGrath
- Department of Prehistory and Institute of Environmental Science and Technology (ICTA-UAB), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
| | - Alice Toso
- Department of Prehistory and Institute of Environmental Science and Technology (ICTA-UAB), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
- BoCAS, Bonn Center for ArchaeoSciences, Institut für Archäologie und Kulturanthropologie, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| | | | - Rafael Guedes Milheira
- Departamento de Antropologia e Arqueologia, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Simon-Pierre Gilson
- Instituto de Ciências Humanas e da Informação, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - Jessica Ferreira
- Programa em Patrimônio Cultural e Sociedade, Universidade da Região de Joinville, Joinville; Museu Arqueológico de Sambaqui de Joinville, Joinville, Brazil
| | - Dione da Rocha Bandeira
- Programa em Patrimônio Cultural e Sociedade, Universidade da Região de Joinville, Joinville; Museu Arqueológico de Sambaqui de Joinville, Joinville, Brazil
| | - Manuel Haimovici
- Universidade Federal do Rio Grande, Instituto de Oceanografia, Rio Grande, RS, Brazil
| | - Bruna Ceretta
- Laboratório de Macroecologia e Conservação Marinha, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Mariana G Bender
- Laboratório de Macroecologia e Conservação Marinha, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - André Carlo Colonese
- Department of Prehistory and Institute of Environmental Science and Technology (ICTA-UAB), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
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Mayer LB, Mellado B, Ruiz-Miranda CR, Nogueira MR, Monteiro LR. Diversity profiles of medium and large-size mammals in an Atlantic Forest remnant: seasonal and spatial patterns. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2023. [DOI: 10.1080/01650521.2023.2180198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Luana Burg Mayer
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Rio de Janeiro, Brazil
| | - Breno Mellado
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Rio de Janeiro, Brazil
| | - Carlos Ramon Ruiz-Miranda
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Rio de Janeiro, Brazil
| | - Marcelo R. Nogueira
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Rio de Janeiro, Brazil
| | - Leandro R. Monteiro
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Rio de Janeiro, Brazil
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Bogoni JA, Percequillo AR, Ferraz KMPMB, Peres CA. The empty forest three decades later: Lessons and prospects. Biotropica 2022. [DOI: 10.1111/btp.13188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Juliano A. Bogoni
- Laboratório de Ecologia, Manejo e Conservação de Fauna (LEMaC), Departamento de Ciências Florestais, Escola Superior de Agricultura “Luiz de Queiroz” Universidade de São Paulo Piracicaba Brazil
- School of Environmental Sciences University of East Anglia Norwich UK
| | - Alexandre R. Percequillo
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” Universidade de São Paulo Piracicaba Brazil
| | - Katia M. P. M. B. Ferraz
- Laboratório de Ecologia, Manejo e Conservação de Fauna (LEMaC), Departamento de Ciências Florestais, Escola Superior de Agricultura “Luiz de Queiroz” Universidade de São Paulo Piracicaba Brazil
| | - Carlos A. Peres
- School of Environmental Sciences University of East Anglia Norwich UK
- Instituto Juruá Manaus Brazil
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Snapshot of the Atlantic Forest canopy: surveying arboreal mammals in a biodiversity hotspot. ORYX 2022. [DOI: 10.1017/s0030605321001563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Abstract
The Atlantic Forest of South America supports a rich terrestrial biodiversity but has been reduced to only a small extent of its original forest cover. It hosts a large number of endemic mammalian species but our knowledge of arboreal mammal ecology and conservation has been limited because of the challenges of observing arboreal species from ground level. Camera trapping has proven to be an effective tool in terrestrial mammal monitoring but the technique has rarely been used for arboreal species. For the first time in the Atlantic Forest, we obtained data on the arboreal mammal community using arboreal camera trapping, focusing on Caparaó National Park, Brazil. We placed 24 infrared camera traps in the forest canopy in seven areas within the Park, operating them continuously during January 2017–June 2019. During this period the camera traps accumulated 4,736 camera-days of footage and generated a total of 2,256 photographs and 30-s videos of vertebrates. The arboreal camera traps were able to detect arboreal mammals of a range of body sizes. The mammal assemblage comprised 15 identifiable species, including the Critically Endangered northern muriqui Brachyteles hypoxanthus and buffy-headed marmoset Callithrix flaviceps as well as other rare, nocturnal and inconspicuous species. We confirmed for the first time the occurrence of the thin-spined porcupine Chaetomys subspinosus in the Park. Species richness varied across survey areas and forest types. Our findings demonstrate the potential of arboreal camera trapping to inform conservation strategies.
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Saranholi BH, Sanches A, Moreira-Ramírez JF, Carvalho CDS, Galetti M, Galetti Jr PM. Long-term persistence of the large mammal lowland tapir is at risk in the largest Atlantic forest corridor. Perspect Ecol Conserv 2022. [DOI: 10.1016/j.pecon.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Yong DL, Jain A, Chowdhury SU, Denstedt E, Khammavong K, Milavong P, Aung TDW, Aung ET, Jearwattanakanok A, Limparungpatthanakij W, Angkaew R, Sinhaseni K, Le TT, Nguyen HB, Tang P, Taing P, Jones VR, Vorsak B. The specter of empty countrysides and wetlands—Impact of hunting take on birds in
Indo‐Burma. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Ding Li Yong
- BirdLife International (Asia) Tanglin International Centre Singapore
| | - Anuj Jain
- BirdLife International (Asia) Tanglin International Centre Singapore
| | - Sayam U. Chowdhury
- Conservation Science Group, Department of Zoology University of Cambridge Cambridge UK
| | | | | | | | | | - Ei Thinzar Aung
- Biodiversity and Nature Conservation Association Yangon Myanmar
| | | | | | - Rongrong Angkaew
- Conservation Ecology Program King Mongkut's University of Technology Thonburi Bangkok Thailand
| | | | | | - Hoai Bao Nguyen
- Vietnam National University, Ecology and Evolutionary Biology Department University of Science Ho Chi Minh City Vietnam
| | - Punleu Tang
- BirdLife International Cambodia Programme Phnom Penh Cambodia
| | - Porchhay Taing
- BirdLife International Cambodia Programme Phnom Penh Cambodia
| | - Victoria R. Jones
- BirdLife International, The David Attenborough Building Cambridge UK
| | - Bou Vorsak
- BirdLife International Cambodia Programme Phnom Penh Cambodia
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Flesher KM, Medici EP. The distribution and conservation status of Tapirus terrestris in the South American Atlantic Forest. NEOTROPICAL BIOLOGY AND CONSERVATION 2022. [DOI: 10.3897/neotropical.17.e71867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Tapirus terrestris is the largest South American land mammal, with an extensive historical distribution and capable of occupying diverse habitats, and yet its populations have declined across its range. In order to provide baseline data on the conservation status of tapirs in the Atlantic Forest, we conducted a long-term study in one landscape, visited 93 forests, and received 217 expert reports over the 15-year study. We estimate that 2,665–15,992 tapirs remain in 48 confirmed populations, occupying 26,654 km2 of forest or 1.78% of its original range in the biome. Historically, hunting and deforestation were the main causes of decline, but today population isolation is the principal long-term threat. Vortex models indicate that 31.3–68.8% and 70.8–93.8% of the populations are demographically and genetically non-viable over the next 100 years, respectively, and that only 3–14 populations are viable when considering both variables. Habitat use data indicate that tapirs are adaptable to disturbed and secondary forests and will use diverse tree plantations and agricultural lands but hunting and highways keep populations isolated. Reserve staff report tapirs as common/abundant at 62.2% of the sites, and populations as stable and growing in 60% and 36% of the sites, respectively, and there is ample habitat in the biome for a population expansion, but overcoming the causes of isolation will be necessary for this to occur. Lack of adequate funding for protecting reserves is a chronic threat throughout the biome, especially in federal and state/provincial reserves, and increased funding will be necessary to implement effective conservation plans.
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André CL, Côrtes MC, Heming NM, Galetti M, Alves RSC, Bovendorp RS. Bamboo shapes the fine-scale richness, abundance, and habitat use of small mammals in a forest fragment. MAMMAL RES 2022. [DOI: 10.1007/s13364-021-00616-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Galetti M, Carmignotto AP, Percequillo AR, Santos MCDO, Ferraz KMPMDB, Lima F, Vancine MH, Muylaert RL, Bonfim FCG, Magioli M, Abra FD, Chiarello AG, Duarte JMB, Morato R, de Mello Beisiegel B, Olmos F, Galetti Jr. PM, Ribeiro MC. Mammals in São Paulo State: diversity, distribution, ecology, and conservation. BIOTA NEOTROPICA 2022. [DOI: 10.1590/1676-0611-bn-2022-1363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract Mammals are charismatic organisms that play a fundamental role in ecological functions and ecosystem services, such as pollination, seed dispersal, nutrient cycling, and pest control. The state of São Paulo represents only 3% of the Brazilian territory but holds 33% of its mammalian diversity. Most of its territory is dominated by agriculture, pastures, and urban areas which directly affect the diversity and persistence of mammals in the landscape. In addition, São Paulo has the largest port in Latin America and the largest offshore oil reservoir in Brazil, with a 600 km stretch of coastline with several marine mammal species. These human-made infrastructures affect the diversity, distribution, ecology, and the future of mammals in the state. Here, we answer five main questions: 1) What is the diversity of wild mammals in São Paulo state? 2) Where are they? 3) What is their positive and negative impact on human well-being? 4) How do mammals thrive in human-modified landscapes? 5) What is the future of mammals in the state? The state of São Paulo holds 255 species of native mammals, with four endemic species, two of them globally endangered. At least six species (two marsupials, Giant otter, Pampas deer, Brazilian dwarf brocket deer, and Giant armadillo) were extirpated from the state due to hunting and habitat loss. The intense human land use in the state forced many mammalian species to change their diet to cope with the intense fragmentation and agriculture. Large-scale monoculture has facilitated the invasion of exotic species such as wild boars (javali) and the European hare. Several “savanna-dwelling” species are expanding their ranges (Maned wolf, Brocket deer) over deforested areas and probably reflect changes towards a drier climate. Because the state has the largest road system, about 40,000 mammals from 33 species are killed per year in collisions causing an economic loss of 12 million dollars/year. The diversity of mammals is concentrated in the largest forest remnants of Serra do Mar and in the interior of the State, mainly in the regions of Ribeirão Preto and Jundiaí. Sampling gaps are concentrated throughout the interior of the state, particularly in the northwest region. Wild mammals play a fundamental role in many ecosystem services, but they can also be a concern in bringing new emergent diseases to humans. Although the taxonomy of mammals seems to be well known, we show that new species are continuously being discovered in the state. Therefore, continuous surveys using traditional and new technologies (eDNA, iDNA, drones), long-term population monitoring, investigation of the interface of human-wildlife conflict, and understanding of the unique ecosystem role played by mammals are future avenues for promoting sustainable green landscapes allied to human well-being in the state. The planting of forest or savanna corridors, particularly along with major river systems, in the plateau, controlling illegal hunting in the coastal areas, managing fire regimes in the Cerrado, and mitigating roadkill must be prioritized to protect this outstanding mammal diversity.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Marcelo Magioli
- Instituto Pró-Carnivoros, Brasil; Instituto Chico Mendes de Conservação da Biodiversidade, Brasil
| | - Fernanda D. Abra
- Instituto Pró-Carnivoros, Brasil; Smithsonian Conservation Biology Institute, USA
| | | | | | - Ronaldo Morato
- Instituto Chico Mendes de Conservação da Biodiversidade, Brasil
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Oshima JEDF, Jorge MLS, Sobral-Souza T, Börger L, Keuroghlian A, Peres CA, Vancine MH, Collen B, Ribeiro MC. Setting priority conservation management regions to reverse rapid range decline of a key neotropical forest ungulate. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01796] [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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12
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Villar N, Rocha-Mendes F, Guevara R, Galetti M. Large herbivore-palm interactions modulate the spatial structure of seedling communities and productivity in Neotropical forests. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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13
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Mittelman P, Dracxler CM, Santos-Coutinho PRO, Pires AS. Sowing forests: a synthesis of seed dispersal and predation by agoutis and their influence on plant communities. Biol Rev Camb Philos Soc 2021; 96:2425-2445. [PMID: 34156131 DOI: 10.1111/brv.12761] [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] [Received: 08/19/2020] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 12/01/2022]
Abstract
Granivorous rodents have been traditionally regarded as antagonistic seed predators. Agoutis (Dasyprocta spp.), however, have also been recognized as mutualistic dispersers of plants because of their role as scatter-hoarders of seeds, especially for large-seeded species. A closer look shows that such definitions are too simplistic for these Neotropical animals because agoutis can influence plant communities not only through seed dispersal of large seeds but also through predation of small seeds and seedlings, evidencing their dual role. Herein, we summarize the literature on plant-agouti interactions, decompose agouti seed dispersal into its quantitative and qualitative components, and discuss how environmental factors and plant traits determine whether these interactions result in mutualisms or antagonisms. We also look at the role of agoutis in a community context, assessing their effectiveness as substitutes for extinct megafaunal frugivores and comparing their ecological functions to those of other extant dispersers of large seeds. We also discuss how our conclusions can be extended to the single other genus in the Dasyproctidae family (Myoprocta). Finally, we examine agoutis' contribution to carbon stocks and summarize current conservation threats and efforts. We recorded 164 interactions between agoutis and plants, which were widespread across the plant phylogeny, confirming that agoutis are generalist frugivores. Seed mass was a main factor determining seed hoarding probability of plant species and agoutis were found to disperse larger seeds than other large-bodied frugivores. Agoutis positively contributed to carbon storage by preying upon seeds of plants with lower carbon biomass and by dispersing species with higher biomass. This synthesis of plant-agouti interactions shows that ecological services provided by agoutis to plant populations and communities go beyond seed dispersal and predation, and we identify still unanswered questions. We hope to emphasise the importance of agoutis in Neotropical forests.
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Affiliation(s)
- Pedro Mittelman
- Wildlife Sciences, University of Goettingen, Goettingen, Buesgenweg 3, 37077, Germany.,Departamento de Ecologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Caroline Marques Dracxler
- Department of Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 94240, Amsterdam, 1090 GE, The Netherlands
| | - Pollyanna R O Santos-Coutinho
- Departamento de Ciências Ambientais, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, 23890-000, Brazil
| | - Alexandra S Pires
- Departamento de Ciências Ambientais, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, 23890-000, Brazil
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Magioli M, Ferraz KMPMDB, Chiarello AG, Galetti M, Setz EZF, Paglia AP, Abrego N, Ribeiro MC, Ovaskainen O. Land-use changes lead to functional loss of terrestrial mammals in a Neotropical rainforest. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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15
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Magioli M, Ferraz KMPMD. Deforestation leads to prey shrinkage for an apex predator in a biodiversity hotspot. MAMMAL RES 2021. [DOI: 10.1007/s13364-021-00556-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Graves V, Tirelli F, Horn P, Resende L, Bolze G, Dutra J, Fonseca C, Pereira MJ. Impact of anthropogenic factors on occupancy and abundance of carnivorans in the Austral Atlantic forest. J Nat Conserv 2021. [DOI: 10.1016/j.jnc.2020.125951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Villar N, Paz C, Zipparro V, Nazareth S, Bulascoschi L, Bakker ES, Galetti M. Frugivory underpins the nitrogen cycle. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13707] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nacho Villar
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
- Department of Aquatic Ecology Netherlands Institute of Ecology Wageningen The Netherlands
| | - Claudia Paz
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
| | - Valesca Zipparro
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
| | - Sergio Nazareth
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
| | - Leticia Bulascoschi
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
| | - Elisabeth S. Bakker
- Department of Aquatic Ecology Netherlands Institute of Ecology Wageningen The Netherlands
| | - Mauro Galetti
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) São Paulo Brazil
- Department of Biology University of Miami Coral Gables FL USA
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Valverde J, Carvalho CDS, Jordano P, Galetti M. Large herbivores regulate the spatial recruitment of a hyperdominant Neotropical palm. Biotropica 2020. [DOI: 10.1111/btp.12873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier Valverde
- CIBIO‐InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade do Porto Vairão Portugal
- Departamento de Ecología Universidad de Granada Granada Spain
| | - Carolina da Silva Carvalho
- Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
- Departamento de Genética e Evolução Universidade Federal de São Carlos (UFSCar) São Carlos Brazil
| | - Pedro Jordano
- Integrative Ecology Group Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (EBD‐CSIC) Sevilla Spain
| | - Mauro Galetti
- Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
- Department of Biology University of Miami Coral Gables FL USA
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Carvalho CDS, Lucas MS, Côrtes MC. Rescuing intraspecific variation in human‐impacted environments. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Carolina da Silva Carvalho
- Departamento de Biodiversidade Universidade Estadual Paulista (UNESP) São Paulo Brazil
- Departamento de Genética e Evolução Universidade Federal de São Carlos (UFSCar) São Paulo Brazil
| | - Marília Souza Lucas
- Departamento de Biodiversidade Universidade Estadual Paulista (UNESP) São Paulo Brazil
| | - Marina Corrêa Côrtes
- Departamento de Biodiversidade Universidade Estadual Paulista (UNESP) São Paulo Brazil
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Extent, intensity and drivers of mammal defaunation: a continental-scale analysis across the Neotropics. Sci Rep 2020; 10:14750. [PMID: 32934299 PMCID: PMC7492218 DOI: 10.1038/s41598-020-72010-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/22/2020] [Indexed: 12/17/2022] Open
Abstract
Neotropical mammal diversity is currently threatened by several chronic human-induced pressures. We compiled 1,029 contemporary mammal assemblages surveyed across the Neotropics to quantify the continental-scale extent and intensity of defaunation and understand their determinants based on environmental covariates. We calculated a local defaunation index for all assemblages—adjusted by a false-absence ratio—which was examined using structural equation models. We propose a hunting index based on socioenvironmental co-variables that either intensify or inhibit hunting, which we used as an additional predictor of defaunation. Mammal defaunation intensity across the Neotropics on average erased 56.5% of the local source fauna, with ungulates comprising the most ubiquitous losses. The extent of defaunation is widespread, but more incipient in hitherto relatively intact major biomes that are rapidly succumbing to encroaching deforestation frontiers. Assemblage-wide mammal body mass distribution was greatly reduced from a historical 95th-percentile of ~ 14 kg to only ~ 4 kg in modern assemblages. Defaunation and depletion of large-bodied species were primarily driven by hunting pressure and remaining habitat area. Our findings can inform guidelines to design transnational conservation policies to safeguard native vertebrates, and ensure that the “empty ecosystem” syndrome will be deterred from reaching much of the New World tropics.
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Weiler A, Núñez K, Silla F. Forest matters: Use of water reservoirs by mammal communities in cattle ranch landscapes in the Paraguayan Dry Chaco. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hoskins HM, McCann NP, Jocque M, Reid N. Rapid defaunation of terrestrial mammals in a protected Neotropical cloud forest remnant. J Nat Conserv 2020. [DOI: 10.1016/j.jnc.2020.125861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Meiga AYY, Christianini AV. Potential impact of mammal defaunation on the early regeneration of a large-seeded palm in the Brazilian Atlantic Forest. NEOTROPICAL BIOLOGY AND CONSERVATION 2020. [DOI: 10.3897/neotropical.15.e54017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Defaunation, the decline in animal species and populations, is biased towards large-bodied animals that have unique roles as dispersers of large seeds. However, it is speculated that these roles may still be performed by smaller animals, such as small mammals like rodents and marsupials, that thrive in defaunated sites. We investigated if small mammals can disperse the large-seeded palm Attalea dubia. We performed the study in a well-conserved Atlantic Forest remnant in southeast Brazil that still harbours large mammals, such as tapirs. Focal observations showed that capuchin-monkeys consumed the mesocarp of the fruits and dropped the seeds beneath the plant crown thereafter. Mammals preyed on ca. 1% and removed ca. 15% of the fallen fruit/seed and deposited them up to 15 m away. Amongst them, small mammals (< 1 kg), such as the squirrel Guerlinguetus brasiliensis and non-identified nocturnal Sigmodontinae, as well as the marsupial Philander frenatus performed the bulk of interactions. Dispersal enhances recruitment, but the short distances of seed removal did not match the current spatial distribution of palm seedlings and juveniles. Recaching rates of hoarded seeds were small (2%) and unlikely to increase distances of seed dispersal achieved. Short distances of dispersal would increase plant clumpiness and negative density-dependent effects with time. Although small mammals can provide legitimate dispersal, they cannot fully replace larger frugivorous mammals and maintain long-distance seed dispersal that feeds plant metapopulation dynamics and seed gene flow.
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Mittelman P, Kreischer C, Pires AS, Fernandez FAS. Agouti reintroduction recovers seed dispersal of a large‐seeded tropical tree. Biotropica 2020. [DOI: 10.1111/btp.12788] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Pedro Mittelman
- Departamento de Ecologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Catharina Kreischer
- Departamento de Ecologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Alexandra S. Pires
- Departamento de Ciências Ambientais Universidade Federal Rural do Rio de Janeiro Seropédica Brazil
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da Silva PG, Bogoni JA, Heino J. Can taxonomic and functional metrics explain variation in the ecological uniqueness of ecologically-associated animal groups in a modified rainforest? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:135171. [PMID: 31796285 DOI: 10.1016/j.scitotenv.2019.135171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The conservation of biodiversity requires adequate information about species and ecosystem attributes. The local contribution to β-diversity (LCBD) is a community composition-based metric of ecological uniqueness of sites. Here, we tested the capability of taxonomic and functional attributes of biological communities to explain variation in LCBD at a large spatial extent. We approached this idea using data on dung beetles and mammals (medium-to-large, small and volant) recorded across the Atlantic Forest of South America due to their millennial-scale evolutionary relationship (food providers and consumers). We related LCBD values to both taxonomic and functional metrics via beta regression. Our results revealed that taxonomic and functional features of assemblages can be used to predict variation in ecological uniqueness (LCBD). High LCBD values were associated with low species and functional richness for all animal groups. For dung beetles, high LCBD values were associated with low values of all functional metrics. For mammalian groups high ecological uniqueness was associated with low abundance, low Rao's quadratic entropy, as well as high functional divergence, functional evenness, functional originality, and either low or high functional specialization. This implies that variation in ecological uniqueness can be explained by functional features at large spatial extents, although the type of functional metrics' response of assemblages may be animal group specific. The potential of the LCBD metric to inform about both taxonomic and functional changes at large scales makes its use in conservation planning a highly promising approach.
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Affiliation(s)
- Pedro Giovâni da Silva
- Programa de Pós-Graduação em Ecologia, Conservação e Manejo da Vida Silvestre, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - Juliano André Bogoni
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Laboratório de Ecologia, Manejo e Conservação de Fauna Silvestre (LEMaC), Piracicaba, São Paulo, Brazil
| | - Jani Heino
- Finnish Environment Institute, Freshwater Centre, Oulu, Finland
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Eppley TM, Santini L, Tinsman JC, Donati G. Do functional traits offset the effects of fragmentation? The case of large-bodied diurnal lemur species. Am J Primatol 2020; 82:e23104. [PMID: 32011761 DOI: 10.1002/ajp.23104] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 01/13/2020] [Accepted: 01/18/2020] [Indexed: 01/04/2023]
Abstract
Primates worldwide are faced with increasing threats making them more vulnerable to extinction. Anthropogenic disturbances, such as habitat degradation and fragmentation, are among the main concerns, and in Madagascar, these issues have become widespread. As this situation continues to worsen, we sought to understand how fragmentation affects primate distribution throughout the island. Further, because species may exhibit different sensitivity to fragmentation, we also aimed to estimate the role of functional traits in mitigating their response. We collated data from 32 large-bodied lemur species ranges, consisting of species from the families Lemuridae (five genera) and Indriidae (two genera). We fitted Generalized Linear Models to determine the role of habitat fragmentation characteristics, for example, forest cover, patch size, edge density, and landscape configuration, as well as the protected area (PA) network, on the species relative probability of presence. We then assessed how the influence of functional traits (dietary guild, home range size) mitigate the response of species to these habitat metrics. Habitat area had a strong positive effect for many species, and there were significantly negative effects of fragmentation on the distribution of many lemur species. In addition, there was a positive influence of PAs on many lemur species' distribution. Functional trait classifications showed that lemurs of all dietary guilds are negatively affected by fragmentation; however, folivore-frugivores show greater flexibility/variability in terms of habitat area and landscape complexity compared to nearly exclusive folivores and frugivores. Furthermore, species of all home range sizes showed a negative response to fragmentation, while habitat area had an increasingly positive effect as home range increased in size. Overall, the general trends for the majority of lemur species are dire and point to the need for immediate actions on a multitude of fronts, most importantly landscape-level reforestation efforts.
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Affiliation(s)
- Timothy M Eppley
- Institute for Conservation Research, San Diego Zoo Global, San Diego, California.,Department of Anthropology, Portland State University, Portland, Oregon
| | - Luca Santini
- Institute of Research on Terrestrial Ecosystems, National Research Council, Montelibretti, Italy.,Department of Environmental Science, Faculty of Science, Institute for Wetland and Water Research, Radboud University, Nijmegen, The Netherlands
| | - Jen C Tinsman
- Institute of the Environment and Sustainability, University of California, Los Angeles, Los Angeles, California.,Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, New York
| | - Giuseppe Donati
- Department of Social Sciences, Oxford Brookes University, Oxford, United Kingdom
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Emer C, Jordano P, Pizo MA, Ribeiro MC, Silva FR, Galetti M. Seed dispersal networks in tropical forest fragments: Area effects, remnant species, and interaction diversity. Biotropica 2019. [DOI: 10.1111/btp.12738] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Carine Emer
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Pedro Jordano
- Integrative Ecology Group Estación Biológica de Doñana (EBD‐CSIC) Consejo Superior de Investigaciones Científicas Sevilla Spain
| | - Marco A. Pizo
- Departamento de Zoologia Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Milton C. Ribeiro
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Fernanda R. Silva
- Instituto de Biologia Universidade de Campinas (UNICAMP) Campinas Brazil
| | - Mauro Galetti
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
- Department of Biology University of Miami Coral Gables FL USA
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28
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Iezzi ME, Cruz P, Varela D, Di Bitetti MS, De Angelo C. Fragment configuration or environmental quality? Understanding what really matters for the conservation of native mammals in the Atlantic Forest of Argentina. J Nat Conserv 2019. [DOI: 10.1016/j.jnc.2019.125751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Bogoni JA, Navarro AB, Graipel ME, Peroni N. Modeling the frugivory of a plant with inconstant productivity and solid interaction with relictual vertebrate biota. Ecol Modell 2019. [DOI: 10.1016/j.ecolmodel.2019.108728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Muylaert RL, Bovendorp RS, Sabino-Santos G, Prist PR, Melo GL, Priante CDF, Wilkinson DA, Ribeiro MC, Hayman DTS. Hantavirus host assemblages and human disease in the Atlantic Forest. PLoS Negl Trop Dis 2019; 13:e0007655. [PMID: 31404077 PMCID: PMC6748440 DOI: 10.1371/journal.pntd.0007655] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 09/17/2019] [Accepted: 07/24/2019] [Indexed: 11/18/2022] Open
Abstract
Several viruses from the genus Orthohantavirus are known to cause lethal disease in humans. Sigmodontinae rodents are the main hosts responsible for hantavirus transmission in the tropical forests, savannas, and wetlands of South America. These rodents can shed different hantaviruses, such as the lethal and emerging Araraquara orthohantavirus. Factors that drive variation in host populations may influence hantavirus transmission dynamics within and between populations. Landscape structure, and particularly areas with a predominance of agricultural land and forest remnants, is expected to influence the proportion of hantavirus rodent hosts in the Atlantic Forest rodent community. Here, we tested this using 283 Atlantic Forest rodent capture records and geographically weighted models that allow us to test if predictors vary spatially. We also assessed the correspondence between proportions of hantavirus hosts in rodent communities and a human vulnerability to hantavirus infection index across the entire Atlantic Forest biome. We found that hantavirus host proportions were more positively influenced by landscape diversity than by a particular habitat or agricultural matrix type. Local small mammal diversity also positively influenced known pathogenic hantavirus host proportions, indicating that a plasticity to habitat quality may be more important for these hosts than competition with native forest dwelling species. We found a consistent positive effect of sugarcane and tree plantation on the proportion of rodent hosts, whereas defaunation intensity did not correlate with the proportion of hosts of potentially pathogenic hantavirus genotypes in the community, indicating that non-defaunated areas can also be hotspots for hantavirus disease outbreaks. The spatial match between host hotspots and human disease vulnerability was 17%, while coldspots matched 20%. Overall, we discovered strong spatial and land use change influences on hantavirus hosts at the landscape level across the Atlantic Forest. Our findings suggest disease surveillance must be reinforced in the southern and southeastern regions of the biome where the highest predicted hantavirus host proportion and levels of vulnerability spatially match. Importantly, our analyses suggest there may be more complex rodent community dynamics and interactions with human disease than currently hypothesized.
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Affiliation(s)
- Renata L. Muylaert
- Departamento de Ecologia, Universidade Estadual Paulista (UNESP), Rio Claro, Brazil
- Molecular Epidemiology and Public Health Laboratory, Infectious Disease Research Centre, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand
| | - Ricardo Siqueira Bovendorp
- Departamento de Ecologia, Universidade Estadual Paulista (UNESP), Rio Claro, Brazil
- PPG Ecologia e Conservação da Biodiversidade, LEAC, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
| | - Gilberto Sabino-Santos
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, United States of America
- Vitalant Research Institute, San Francisco, California, United States of America
| | - Paula R. Prist
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Geruza Leal Melo
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | - David A. Wilkinson
- Molecular Epidemiology and Public Health Laboratory, Infectious Disease Research Centre, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand
| | - Milton Cezar Ribeiro
- Departamento de Ecologia, Universidade Estadual Paulista (UNESP), Rio Claro, Brazil
| | - David T. S. Hayman
- Molecular Epidemiology and Public Health Laboratory, Infectious Disease Research Centre, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand
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Mann DH, Groves P, Gaglioti BV, Shapiro BA. Climate-driven ecological stability as a globally shared cause of Late Quaternary megafaunal extinctions: the Plaids and Stripes Hypothesis. Biol Rev Camb Philos Soc 2019; 94:328-352. [PMID: 30136433 PMCID: PMC7379602 DOI: 10.1111/brv.12456] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 07/14/2018] [Accepted: 07/19/2018] [Indexed: 01/24/2023]
Abstract
Controversy persists about why so many large-bodied mammal species went extinct around the end of the last ice age. Resolving this is important for understanding extinction processes in general, for assessing the ecological roles of humans, and for conserving remaining megafaunal species, many of which are endangered today. Here we explore an integrative hypothesis that asserts that an underlying cause of Late Quaternary megafaunal extinctions was a fundamental shift in the spatio-temporal fabric of ecosystems worldwide. This shift was triggered by the loss of the millennial-scale climate fluctuations that were characteristic of the ice age but ceased approximately 11700 years ago on most continents. Under ice-age conditions, which prevailed for much of the preceding 2.6 Ma, these radical and rapid climate changes prevented many ecosystems from fully equilibrating with their contemporary climates. Instead of today's 'striped' world in which species' ranges have equilibrated with gradients of temperature, moisture, and seasonality, the ice-age world was a disequilibrial 'plaid' in which species' ranges shifted rapidly and repeatedly over time and space, rarely catching up with contemporary climate. In the transient ecosystems that resulted, certain physiological, anatomical, and ecological attributes shared by megafaunal species pre-adapted them for success. These traits included greater metabolic and locomotory efficiency, increased resistance to starvation, longer life spans, greater sensory ranges, and the ability to be nomadic or migratory. When the plaid world of the ice age ended, many of the advantages of being large were either lost or became disadvantages. For instance in a striped world, the low population densities and slow reproductive rates associated with large body size reduced the resiliency of megafaunal species to population bottlenecks. As the ice age ended, the downsides of being large in striped environments lowered the extinction thresholds of megafauna worldwide, which then increased the vulnerability of individual species to a variety of proximate threats they had previously tolerated, such as human predation, competition with other species, and habitat loss. For many megafaunal species, the plaid-to-stripes transition may have been near the base of a hierarchy of extinction causes whose relative importances varied geographically, temporally, and taxonomically.
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Affiliation(s)
- Daniel H. Mann
- Department of Geosciences and Institute of Arctic BiologyUniversity of AlaskaFairbanksAK 99775USA
| | - Pamela Groves
- Institute of Arctic BiologyUniversity of AlaskaFairbanksAK 99775USA
| | | | - Beth A. Shapiro
- Department of Ecology and Evolutionary BiologyUniversity of CaliforniaSanta CruzCA 95064USA
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Marjakangas EL, Genes L, Pires MM, Fernandez FAS, de Lima RAF, de Oliveira AA, Ovaskainen O, Pires AS, Prado PI, Galetti M. Estimating interaction credit for trophic rewilding in tropical forests. Philos Trans R Soc Lond B Biol Sci 2018; 373:rstb.2017.0435. [PMID: 30348879 DOI: 10.1098/rstb.2017.0435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2018] [Indexed: 12/15/2022] Open
Abstract
Trophic rewilding has been suggested as a restoration tool to restore ecological interactions and reverse defaunation and its cascading effects on ecosystem functioning. One of the ecological processes that has been jeopardized by defaunation is animal-mediated seed dispersal. Here, we propose an approach that combines joint species distribution models with occurrence data and species interaction records to quantify the potential to restore seed-dispersal interactions through rewilding and apply it to the Atlantic Forest, a global biodiversity hotspot. Using this approach, we identify areas that should benefit the most from trophic rewilding and candidate species that could contribute to cash the credit of seed-dispersal interactions in a given site. We found that sites within large fragments bearing a great diversity of trees may have about 20 times as many interactions to be cashed through rewilding as small fragments in regions where deforestation has been pervasive. We also ranked mammal and bird species according to their potential to restore seed-dispersal interactions if reintroduced while considering the biome as a whole and at finer scales. The suggested approach can aid future conservation efforts in rewilding projects in defaunated tropical rainforests.This article is part of the theme issue 'Trophic rewilding: consequences for ecosystems under global change'.
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Affiliation(s)
- Emma-Liina Marjakangas
- Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
| | - Luísa Genes
- Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CP 68020, Rio de Janeiro, RJ 21941-590, Brazil
| | - Mathias M Pires
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP CEP 13.083-862, Brazil
| | - Fernando A S Fernandez
- Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CP 68020, Rio de Janeiro, RJ 21941-590, Brazil
| | - Renato A F de Lima
- Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil
| | - Alexandre A de Oliveira
- Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil
| | - Otso Ovaskainen
- Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.,Faculty of Biological and Environmental Sciences, University of Helsinki, PO Box 65, Helsinki FI-00014, Finland
| | - Alexandra S Pires
- Departamento de Ciências Ambientais, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ 23890-000, Brazil
| | - Paulo I Prado
- Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil
| | - Mauro Galetti
- Departamento de Ecologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), CP 199, Rio Claro, SP 13506-900, Brazil
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Aguirre AG, Teixeira J, Zorzanelli JPF, Colletta GD, Sampaio D. Plant Species in a tract of insular Atlantic Forest in Ilhabela (SP): Floristics, photographic documentation, and identification keys of arboreal dicotyledons based on vegetative characteristics. BIOTA NEOTROPICA 2018. [DOI: 10.1590/1676-0611-bn-2017-0497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract: The Ilhabela State Park (PEIb, for Parque Estadual Ilhabela in Portuguese)-located between 23º 46' 28" south latitude and 45º 21' 20" west latitude-is responsible for the conservation of one of the most important, and most devastated, fragments of insular Atlantic Forest. To catalog the arboreal species along the trails of the Conservation Unit, and to provide a practical instrument to facilitate the recognition of these species, we aimed with this work to conduct a floristic and photographic survey of distinct life forms and create an identification key for arboreal dicotyledonous species based on vegetative characters. We cataloged 123 species belonging to 99 genera and 46 botanical families. The best-represented families were Rubiaceae (15 spp.), Fabaceae (10), Piperaceae (10), Myrtaceae (8), Melatomataceae (7) and Lauraceae (7). We found three species threatened with extinction, two new occurrences for the state of São Paulo, and one plant species new to science, demonstrating the floristic importance of the region. We developed three vegetative dichotomous identification keys: to species with compound leaves; simple and opposite leaves; and alternate simple leaves. The dichotomous keys presents 97 arboreal species, distributed among 37 families, and was based on vegetative characters such as phyllotaxis, composition and shape of the limbus, presence or absence of stipules, exudate, lenticels, indument, glands and dots. We also elaborated a photographic board with 118 species as a supplementary material to support the use of the identification key.
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Chaves ÓM, Bicca-Marques JC, Chapman CA. Quantity and quality of seed dispersal by a large arboreal frugivore in small and large Atlantic forest fragments. PLoS One 2018; 13:e0193660. [PMID: 29561869 PMCID: PMC5862440 DOI: 10.1371/journal.pone.0193660] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/15/2018] [Indexed: 11/19/2022] Open
Abstract
Seed dispersal is a key process driving the structure, composition, and regeneration of tropical forests. Larger frugivores play a crucial role in community structuring by dispersing large seeds not dispersed by smaller frugivores. We assessed the hypothesis that brown howler monkeys (Alouatta guariba clamitans) provide seed dispersal services for a wide assemblage of plant species in both small and large Atlantic forest fragments. Although fruit availability often decreases in small fragments compared with large ones, we predicted that brown howlers are efficient seed dispersers in quantitative and qualitative terms in both forest types given their high dietary flexibility. After a 36-month study period and 2,962 sampling hours, we found that howlers swallowed and defecated intact the vast majority of seeds (96%-100%) they handled in all study sites. Overall, they defecated ca. 315,600 seeds belonging to 98 species distributed in eight growth forms. We estimated that each individual howler dispersed an average of 143 (SD = 49) seeds >2 mm per day or 52,052 (SD = 17,782) seeds per year. They dispersed seeds of 58% to 93% of the local assemblages of fleshy-fruit trees. In most cases, the richness and abundance of seed species dispersed was similar between small and large fragments. However, groups inhabiting small fragments tended to disperse a higher diversity of seeds from rarely consumed fruits than those living in large fragments. We conclude that brown howlers are legitimate seed dispersers for most fleshy-fruit species of the angiosperm assemblages of their habitats, and that they might favor the regeneration of Atlantic forest fragments with the plentiful amount of intact seeds that they disperse each year.
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Affiliation(s)
- Óscar M. Chaves
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências, Porto Alegre, Rio Grande do Sul, Brazil
- Organização Fauna Brasilis, Rua Manuel Vieira da Rosa No. 108, Lami, Porto Alegre, Rio Grande do Sul, Brazil
| | - Júlio César Bicca-Marques
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Ciências, Porto Alegre, Rio Grande do Sul, Brazil
| | - Colin A. Chapman
- McGill School of Environment and Department of Anthropology, McGill University, Montreal, Quebec, Canada
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Fernandez FA, Rheingantz ML, Genes L, Kenup CF, Galliez M, Cezimbra T, Cid B, Macedo L, Araujo BB, Moraes BS, Monjeau A, Pires AS. Rewilding the Atlantic Forest: Restoring the fauna and ecological interactions of a protected area. Perspect Ecol Conserv 2017. [DOI: 10.1016/j.pecon.2017.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Sousa JAC, Srbek-Araujo AC. Are we headed towards the defaunation of the last large Atlantic Forest remnants? Poaching activities in one of the largest remnants of the Tabuleiro forests in southeastern Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:129. [PMID: 28243929 DOI: 10.1007/s10661-017-5854-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 02/15/2017] [Indexed: 06/06/2023]
Abstract
Hunting is a problem to animal conservation in different parts of the world and it has caused the local extinction of several species. The aim of this study was to characterize the poaching activities in one of the main tabuleiro forest remnants of Brazil, the Linhares-Sooretama Block (LSB). Poaching records from 2010 to 2013 were gathered from the agencies responsible for monitoring and combating environmental crimes in the LSB. A total of 693 records (mean = 173 events/year) were collected involving direct (hunted animals, firearms, handmade firearms, traps, poachers, and various hunting supplies) and indirect (tree stands, baits, and poacher signs) evidences of poaching. No differences in the monthly cumulative number of records were found among years, but the distribution of records differed according to the type of evidence. A total of 40 animal seizure events were recorded involving a total of at least 15 taxa directly affected by poaching (reptiles = 2, birds = 6, mammals = 7) and 75 individuals seized (19 individuals/year). Five of the poached species are threatened. Lowland paca (Cuniculus paca) and armadillos were the most poached mammals in the region. Most of the poachers conduct such activities for fun (entertainment) and/or professionally (commercial hunting). The collected data show an approximately 32% increase in the number of poaching events in the region compared with the historical data available for LSB. It may have resulted from a gradual decrease in protection, both in terms of the number of agents deployed and the levels of effort of the teams, which began in 2009. The data demonstrate that poaching is a significant threat to the conservation of the LSB fauna, as it is in other Atlantic Forest remnants and in other regions of the world. Protection activities must be intensified to effectively combat the impacts of poaching in the LSB region, thereby contributing to the conservation of species in one of the few Atlantic Forest remnants whose original species composition still remains intact.
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Affiliation(s)
- José Adelson C Sousa
- Laboratório de Ecologia e Conservação de Biodiversidade, Programa de Pós-Graduação em Ecologia de Ecossistemas, Universidade Vila Velha, Rua Comissário José Dantas de Melo, n° 21, Bairro Boa Vista, Vila Velha, Espírito Santo, CEP 29.102-920, Brazil
| | - Ana C Srbek-Araujo
- Laboratório de Ecologia e Conservação de Biodiversidade, Programa de Pós-Graduação em Ecologia de Ecossistemas, Universidade Vila Velha, Rua Comissário José Dantas de Melo, n° 21, Bairro Boa Vista, Vila Velha, Espírito Santo, CEP 29.102-920, Brazil.
- Instituto SerraDiCal de Pesquisa e Conservação, Belo Horizonte, Minas Gerais, Brazil.
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