1
|
Mello JHF, Muylaert RL, Grelle CEV. Hantavirus Expansion Trends in Natural Host Populations in Brazil. Viruses 2024; 16:1154. [PMID: 39066316 PMCID: PMC11281686 DOI: 10.3390/v16071154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/15/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Hantaviruses are zoonotic agents responsible for causing Hantavirus Cardiopulmonary Syndrome (HCPS) in the Americas, with Brazil ranking first in number of confirmed HCPS cases in South America. In this study, we simulate the monthly spread of highly lethal hantavirus in natural hosts by conjugating a Kermack-McCormick SIR model with a cellular automata model (CA), therefore simultaneously evaluating both in-cell and between-cell infection dynamics in host populations, using recently compiled data on main host species abundances and confirmed deaths by hantavirus infection. For both host species, our models predict an increase in the area of infection, with 22 municipalities where no cases have been confirmed to date expected to have at least one case in the next decade, and a reduction in infection in 11 municipalities. Our findings support existing research and reveal new areas where hantavirus is likely to spread within recognized epicenters. Highlighting spatial-temporal trends and potential expansion, we emphasize the increased risk due to pervasive habitat fragmentation and agricultural expansion. Consistent prevention efforts and One Health actions are crucial, especially in newly identified high-risk municipalities.
Collapse
Affiliation(s)
- José Henrique Fortes Mello
- Department of Ecology, Institute of Biology, Rio de Janeiro Federal University (UFRJ), Rio de Janeiro 21941-902, Brazil
- Knowledge Center for Biodiversity, Belo Horizonte 31270-901, MG, Brazil
| | - Renata L. Muylaert
- Molecular Epidemiology and Public Health Laboratory, School of Veterinary Science—Tāwharau Ora, Massey University, Private Bag 11-222, Palmerston North 4474, New Zealand
| | - Carlos Eduardo Viveiros Grelle
- Department of Ecology, Institute of Biology, Rio de Janeiro Federal University (UFRJ), Rio de Janeiro 21941-902, Brazil
- Knowledge Center for Biodiversity, Belo Horizonte 31270-901, MG, Brazil
| |
Collapse
|
2
|
Nanglu K, de Carle D, Cullen TM, Anderson EB, Arif S, Castañeda RA, Chang LM, Iwama RE, Fellin E, Manglicmot RC, Massey MD, Astudillo‐Clavijo V. The nature of science: The fundamental role of natural history in ecology, evolution, conservation, and education. Ecol Evol 2023; 13:e10621. [PMID: 37877102 PMCID: PMC10591213 DOI: 10.1002/ece3.10621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/20/2023] [Accepted: 09/27/2023] [Indexed: 10/26/2023] Open
Abstract
There is a contemporary trend in many major research institutions to de-emphasize the importance of natural history education in favor of theoretical, laboratory, or simulation-based research programs. This may take the form of removing biodiversity and field courses from the curriculum and the sometimes subtle maligning of natural history research as a "lesser" branch of science. Additional threats include massive funding cuts to natural history museums and the maintenance of their collections, the extirpation of taxonomists across disciplines, and a critical under-appreciation of the role that natural history data (and other forms of observational data, including Indigenous knowledge) play in the scientific process. In this paper, we demonstrate that natural history knowledge is integral to any competitive science program through a comprehensive review of the ways in which they continue to shape modern theory and the public perception of science. We do so by reviewing how natural history research has guided the disciplines of ecology, evolution, and conservation and how natural history data are crucial for effective education programs and public policy. We underscore these insights with contemporary case studies, including: how understanding the dynamics of evolutionary radiation relies on natural history data; methods for extracting novel data from museum specimens; insights provided by multi-decade natural history programs; and how natural history is the most logical venue for creating an informed and scientifically literate society. We conclude with recommendations aimed at students, university faculty, and administrators for integrating and supporting natural history in their mandates. Fundamentally, we are all interested in understanding the natural world, but we can often fall into the habit of abstracting our research away from its natural contexts and complexities. Doing so risks losing sight of entire vistas of new questions and insights in favor of an over-emphasis on simulated or overly controlled studies.
Collapse
Affiliation(s)
- Karma Nanglu
- Museum of Comparative Zoology and Department of Organismic and Evolutionary BiologyHarvard UniversityCambridgeMassachusettsUSA
| | - Danielle de Carle
- Department of Ecology and Evolutionary BiologyUniversity of TorontoTorontoOntarioCanada
- Department of Invertebrate ZoologyRoyal Ontario MuseumTorontoOntarioCanada
| | - Thomas M. Cullen
- Department of GeosciencesAuburn UniversityAuburnAlabamaUSA
- Negaunee Integrative Research CenterField Museum of Natural HistoryChicagoIllinoisUSA
| | - Erika B. Anderson
- The HunterianUniversity of GlasgowGlasgowUK
- Department of Earth and SpaceRoyal Ontario MuseumTorontoOntarioCanada
| | - Suchinta Arif
- Department of BiologyDalhousie UniversityHalifaxNova ScotiaCanada
| | - Rowshyra A. Castañeda
- Ecosystems and Ocean SciencesPacific Region, Fisheries and Oceans CanadaSidneyBritish ColumbiaCanada
| | | | - Rafael Eiji Iwama
- Departamento de Genética e Biologia Evolutiva, Instituto de BiociênciasUniversidade de São PauloSão PauloBrazil
| | - Erica Fellin
- Department of BiologyMcGill UniversityMontrealQuebecCanada
| | | | | | | |
Collapse
|
3
|
Brito Dias V, Martello F, Regolin AL, Tomas WM, Ribeiro MC. Forest amount determines the occupancy of the arboreal rodent Oecomys cleberi (Rodentia: Cricetidae) in Atlantic Forest fragmented landscapes. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2023. [DOI: 10.1080/01650521.2023.2183656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Viviane Brito Dias
- Programa de Pós-graduação em Ecologia e Conservação, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
- Programa de Pós-graduação em Biodiversidade, Universidade Estadual Paulista -UNESP, Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Preto, Brasil
| | - Felipe Martello
- Biodiversidade e Serviços Ecossistêmicos, Instituto Tecnológico Vale, Belém, Brasil
| | - André Luis Regolin
- Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás - UFG, Goiânia, Brasil
| | | | - Milton Cezar Ribeiro
- Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação –LEEC, Instituto de Biociências, Universidade Estadual Paulista -UNESP, Rio Claro, Brasil
| |
Collapse
|
4
|
Pires MM, Galetti M. Beyond the “empty forest”: The defaunation syndromes of Neotropical forests in the Anthropocene. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
5
|
Moore JW, Schindler DE. Getting ahead of climate change for ecological adaptation and resilience. Science 2022; 376:1421-1426. [PMID: 35737793 DOI: 10.1126/science.abo3608] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Changing the course of Earth's climate is increasingly urgent, but there is also a concurrent need for proactive stewardship of the adaptive capacity of the rapidly changing biosphere. Adaptation ultimately underpins the resilience of Earth's complex systems; species, communities, and ecosystems shift and evolve over time. Yet oncoming changes will seriously challenge current natural resource management and conservation efforts. We review forward-looking conservation approaches to enable adaptation and resilience. Key opportunities include expanding beyond preservationist approaches by including those that enable and facilitate ecological change. Conservation should not just focus on climate change losers but also on proactive management of emerging opportunities. Local efforts to conserve biodiversity and generate habitat complexity will also help to maintain a diversity of future options for an unpredictable future.
Collapse
Affiliation(s)
- Jonathan W Moore
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Daniel E Schindler
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA
| |
Collapse
|
6
|
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]
|
7
|
OUP accepted manuscript. Biol J Linn Soc Lond 2022. [DOI: 10.1093/biolinnean/blab177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
8
|
Dambros C, Cáceres N, Baselga A. The prevalence of temperature and dispersal limitation as drivers of diversity in Neotropical small mammals. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cristian Dambros
- Department of Ecology and Evolution CCNE Universidade Federal de Santa Maria 97.105‐900 Santa Maria Brazil
| | - Nilton Cáceres
- Department of Ecology and Evolution CCNE Universidade Federal de Santa Maria 97.105‐900 Santa Maria Brazil
| | - Andrés Baselga
- Departamento de Zoología, Genética y Antropología Física Universidad de Santiago de Compostela Santiago de Compostela Spain
| |
Collapse
|
9
|
Dario MA, Maranhão PHC, Dos Santos GQ, Rocha MDM, Falqueto A, Da Silva LFCF, Jansen AM, Das Chagas Xavier SC. Environmental influence on <em>Triatoma vitticeps</em> occurrence and <em>Trypanosoma cruzi</em> infection in the Atlantic Forest of south-eastern Brazil. GEOSPATIAL HEALTH 2021; 16. [PMID: 34726032 DOI: 10.4081/gh.2021.997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
Trypanosoma cruzi requires a triatomine insect vector for its life cycle, which can be complex in different enzootic scenarios, one of which is the unique transmission network in the Atlantic Forest of south-eastern Brazil. In Espírito Santo (ES) State, highly infected Triatoma vitticeps are frequently reported invading domiciles. However, triatomines were not found colonizing residences and mammals in the surrounding areas did not present T. cruzi infection. To date, the biotic and abiotic variables that modulate T. vitticeps occurrence and T. cruzi infection in ES State are still unknown. The aim of this study was to identify the environmental variables that modulate their occurrence. Local thematic maps were generated for two response variables: T. vitticeps occurrence and T. cruzi infection. The following explanatory variables were tested: climate (temperature, relative air humidity and rainfall), altitude elevation, mammalian species richness as well as soil and vegetation types. Spatiotemporal distribution patterns and correlation levels between response and explanatory variables were assessed through spatial statistics and map algebra modelling. The central and southern mesoregions presented higher T. vitticeps and T. cruzi distributions and can be considered transmission hotspots. The explanatory variables that can explain these phenomena were relative air humidity, average temperature, soil type, altitude elevation and mammalian species richness. Algebra map modelling demonstrated that central and southern mesoregions presented the environmental conditions needed for T. vitticeps occurrence and T. cruzi infection. The consideration of environmental variables is essential for understanding the T. cruzi transmission cycle. Cartographic and statistical methodologies used in parasitology have been demonstrated to be reliable and enlightening tools that should be incorporated routinely to expand the understanding of vector-borne parasite transmission.
Collapse
Affiliation(s)
- Maria Augusta Dario
- Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro.
| | | | | | - Marcos de Meneses Rocha
- Department of Cartographic Engineering, Military Institute of Engineering, Rio de Janeiro, Rio de Janeiro.
| | - Aloísio Falqueto
- Tropical Medicine Unit, Federal University of Espírito Santo, Vitória, Espírito Santo; Department of Pathology, Federal University of Espírito Santo, Vitória, Espírito Santo.
| | | | - Ana Maria Jansen
- Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro.
| | | |
Collapse
|
10
|
Dalapicolla J, Abreu EF, do Prado JR, de Almeida Chiquito E, de Oliveira Roth PR, de Góes Brennand PG, Pavan ACD, Pereira A, Mendes FR, del Valle Alvarez MR, Rios ÉO, Cassano CR, Miretzki M, Vélez F, da Paixão Sevá A, Percequillo AR, Bovendorp RS. Areas of endemism of small mammals are underprotected in the Atlantic Forest. J Mammal 2021. [DOI: 10.1093/jmammal/gyab073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Atlantic Forest (AF) is amongst the most threatened forests in the world. To decide where conservation efforts should be focused to preserve species, assessment of ecological and biogeographic processes nowadays are crucial. Patterns of the distribution of organisms can provide an important source of information underlying the biogeographical history of a biota. Here, our main objective was to identify Areas of Endemism (AoE) for non-volant small mammals in the AF and to investigate if those AoE are covered by protected areas. We performed quantitative and qualitative approaches to delimit AoE and calculated the area overlaid by Conservation Units (CU) within each AoE. Our results supported the recognition of seven AoE for small mammals in the AF, which largely are congruent with previous studies undertaken on other organisms, thereby highlighting the importance of those regions as hotspots of endemism. Most of the AoE recovered in the present study have less than 12% of their territory covered by forest remnants, and less than 11% of their entire range is under legal protection. These findings bring to light an important discussion on how information pertaining to the representativeness of CU within regions of high endemicity could help to identify areas in need of urgent protection within a threatened biodiversity hotspot.
Collapse
Affiliation(s)
- Jeronymo Dalapicolla
- Instituto Tecnológico Vale, Desenvolvimento Sustentável, Rua Boaventura da Silva, 955, 66055-090 Belém, PA, Brazil
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | - Edson Fiedler Abreu
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | - Joyce Rodrigues do Prado
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | - Elisandra de Almeida Chiquito
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
- Instituto Nacional da Mata Atlântica (INMA), Av. José Ruschi 4, 29650-000 Santa Teresa, ES, Brazil
| | - Paulo Ricardo de Oliveira Roth
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | | | - Ana Carolina D’Oliveira Pavan
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | - Alex Pereira
- Bioconsultoria Gestão e Licenciamento Ambiental, Avenida Tancredo Neves, 274, Bloco B, Sala 427, 41820-907 Salvador, BA,Brazil
| | - Fabiana Rocha Mendes
- Instituto Neotropical: Pesquisa e Conservação (INPCON), Rua Purus 33, 82520-750 Curitiba, PR, Brazil
| | - Martin Roberto del Valle Alvarez
- Coleção de Mamíferos “Alexandre Rodrigues Ferreira” (CMARF), Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
| | - Élson Oliveira Rios
- Coleção de Mamíferos “Alexandre Rodrigues Ferreira” (CMARF), Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
| | - Camila Righetto Cassano
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
| | - Michel Miretzki
- Laboratório de Biologia e Ecologia de Vertebrados, Departamento de Zoologia, Ciência Biológicas, Universidade Federal do Paraná (UFPR), Av. Coronel Francisco H. dos Santos, 100 - Caixa Postal 19020, 81531-980 Curitiba, Brazil
| | - Felipe Vélez
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
| | - Anaiá da Paixão Sevá
- Departamento de Ciências Exatas e Tecnológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
| | - Alexandre Reis Percequillo
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
| | - Ricardo Siqueira Bovendorp
- Laboratório de Mamíferos, Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz” (ESALQ), Universidade de São Paulo (USP), Av. Pádua Dias, 11, 13418-900 Piracicaba, SP, Brazil
- Laboratório de Ecologia Aplicada à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km16, Salobrinho, 45662-900 Ilhéus, BA, Brazil
- Departamento de Ecologia, Universidade Estadual Paulista (UNESP), Av. 24 A, 1515, 13506-900 Rio Claro, Brazil
| |
Collapse
|
11
|
Elusive deer occurrences at the Atlantic Forest: 20 years of surveys. MAMMAL RES 2021. [DOI: 10.1007/s13364-021-00604-4] [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]
|
12
|
Potential distribution of piscivores across the Atlantic Forest: From bats and marsupials to large-bodied mammals under a trophic-guild viewpoint. ECOL INFORM 2021. [DOI: 10.1016/j.ecoinf.2021.101357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
13
|
Identifying structural connectivity priorities in eastern Paraguay's fragmented Atlantic Forest. Sci Rep 2021; 11:16129. [PMID: 34373535 PMCID: PMC8352903 DOI: 10.1038/s41598-021-95516-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023] Open
Abstract
The Atlantic Forest of eastern Paraguay has experienced extensive recent deforestation. Less than one-third of the region is forested, and the remaining forest largely consists of isolated remnants with potentially disrupted connectivity for forest fauna. We used a graph theory approach to identify those forest remnants that are important in maintaining landscape structural connectivity for mammals in this fragmented forest. We quantified structural connectivity for forest remnants over the period 2000-2019 at three levels: the entire network of Atlantic Forest remnants in eastern Paraguay; at 10 smaller, nested spatial scales (40-10,000 m) encompassing a range of potential mammalian dispersal abilities; and at the level of individual remnants. We used 10 graph theory metrics to assess aspects of network complexity, dispersal-route efficiency, and individual remnant importance in supporting structural connectivity. We identified forest remnants that serve as important structural connectivity roles as stepping stones, hubs, or articulation points and that should be prioritized for connectivity conservation. Structural connectivity was constrained for organisms incapable of travelling at least 9-12 km (farthest distances between nearest-neighboring forest remnants depending on whether smaller remnants were included or not) and was particularly limited for area-sensitive forest-specialist mammals. With the increased forest loss and fragmentation that is occurring, the connectivity of this system will likely be further compromised, but most of the remnants that we identified as playing important roles for structural connectivity were outside of the country's proposed "green corridor," indicating additional areas where conservation action can be directed.
Collapse
|
14
|
Biogeographic and fragmentation-related research biases on antbirds and non-flying small mammals in Brazil. JOURNAL OF TROPICAL ECOLOGY 2021. [DOI: 10.1017/s0266467421000250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractMajor biogeographic and taxonomic biases are recurrent in biological surveys, including fragmentation studies. Detecting biases and subsequent gaps is crucial to steer future research and suitable conservation policies. We evaluated biogeographic and fragmentation-related biases on antbirds and non-flying small mammals in Brazil, two oversampled and vulnerable taxonomic groups, by surveying papers in the Scielo and the Web of Science. We found 566 articles published from 1945 to 2018, including 55 and 43 fragmentation studies for antbirds and small mammals, respectively. Considering the species richness for each group across the Brazilian biomes, the number of publications for small mammals tended to disproportionately increase while increasing richness. The Atlantic Forest, the most degraded and densely populated biome, contained the highest number of publications. However, the Amazon included a disproportionately high number of papers considering its low population density. Conversely, non-forest biomes such as the Caatinga, Pampa and Pantanal were mostly overlooked. Our results show that research effort for small mammals and antbirds in Brazil is biogeographically biased. We call future research to consider more studies across non-forest biomes and vast unexplored areas within forest biomes to overcome major knowledge gaps on diversity, distribution and ecology of antbirds and small mammals in Brazil.
Collapse
|
15
|
Bubadué J, Cáceres N, Melo G, Sponchiado J, Battistella T, Newton J, Meloro C. Niche partitioning in small mammals: interspecific and biome-level analyses using stable isotopes. J Mammal 2021. [DOI: 10.1093/jmammal/gyab063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Abstract
Small mammal assemblages from South America provide a unique opportunity to measure coexistence and niche partitioning between marsupials and placentals. We tested how these two major clades partition environmental resources by comparing stable isotopic ratios of similar sized Didelphidae and Sigmodontinae in four Brazilian biomes: Pampas grassland, Pantanal wetland, Cerrado woodland savanna, and Atlantic Forest. Generally, didelphid isotopic niche follows a scaling law, because we found an association between δ15N enrichment and body mass. Sigmodontines that primarily partition the environment via forest strata showed a greater intake of C4 or/and crassulacean acid metabolism (CAM) plants than didelphids, as reflected by their wider trophic niche. Values of δ13C were highest in savannas and grasslands (Cerrado and Pampas biomes), and values of δ15N were highest in the Atlantic Forest (in sigmodontines) and Pampas (in didelphids). While assessing patterns between the two major Brazilian biomes (Atlantic Forest and Cerrado), we found evidence of a broader trophic niche for both clades in the Cerrado. In the Atlantic Forest, niche occupation by Didelphidae was completely enclosed within the Sigmodontinae trophic niche. Both clades showed less overlap in the Cerrado, a less productive environment. Our results highlight the importance of a comparative framework and the use of stable isotopes for testing ecological questions related to how small mammalian communities partition their niche.
Collapse
Affiliation(s)
- Jamile Bubadué
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
| | - Nilton Cáceres
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Geruza Melo
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Jonas Sponchiado
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Thaís Battistella
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Jason Newton
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará, IFCE, Jaguaribe, CE, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, IFFar, Alegrete, RS, Brazil
- National Environmental Isotope Facility, East Kilbride, United Kingdom
| | - Carlo Meloro
- Research Centre in Evolutionary Anthropology and Palaeoecology, School of Biological & Environmental Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| |
Collapse
|
16
|
Environmental heterogeneity and sampling relevance areas in an Atlantic forest endemism region. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
17
|
Freire RM, Montero GA, Vesprini JL, Barberis IM. Review of the interactions of an ecological keystone species, Aechmea distichantha Lem. (Bromeliaceae), with the associated fauna. J NAT HIST 2021. [DOI: 10.1080/00222933.2021.1902010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rodrigo M. Freire
- Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Argentina
- Instituto de Investigaciones en Ciencias Agrarias de Rosario, Universidad Nacional de Rosario, Consejo de Investigaciones Científicas y Técnicas, Zavalla, Argentina
| | - Guillermo A. Montero
- Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Argentina
- Instituto de Investigaciones en Ciencias Agrarias de Rosario, Universidad Nacional de Rosario, Consejo de Investigaciones Científicas y Técnicas, Zavalla, Argentina
| | - José L. Vesprini
- Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Argentina
- Instituto de Investigaciones en Ciencias Agrarias de Rosario, Universidad Nacional de Rosario, Consejo de Investigaciones Científicas y Técnicas, Zavalla, Argentina
| | - Ignacio M. Barberis
- Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Argentina
- Instituto de Investigaciones en Ciencias Agrarias de Rosario, Universidad Nacional de Rosario, Consejo de Investigaciones Científicas y Técnicas, Zavalla, Argentina
| |
Collapse
|
18
|
Cordeiro DA, Costa GMJ, França LR. Testis structure, duration of spermatogenesis and daily sperm production in four wild cricetid rodent species (A. cursor, A. montensis, N. lasiurus, and O. nigripes). PLoS One 2021; 16:e0251256. [PMID: 34014973 PMCID: PMC8136699 DOI: 10.1371/journal.pone.0251256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 04/23/2021] [Indexed: 11/24/2022] Open
Abstract
Although rodents represent approximately 40% of all living mammalian species, our knowledge regarding their reproductive biology is still scarce. Due to their high vulnerability to environmental changes, wild rodents have become beneficial models for ecological studies. Thus, we aimed to comparatively investigate key functional testis parameters in four sexually mature wild rodent species (A. cursor, A. montensis, N. lasiurus, and O. nigripes). These species belong to the Cricetidae family, which is the most diverse family of rodents in South America, with a total of ~120 species in Brazil. The results found for the gonadosomatic index and the sickled sperm head shape observed strongly suggest that the species here evaluated are promiscuous, prolific, and short-lived. The duration of spermatogenesis was relatively short and varied from ~35-40 days. Both the percentage of seminiferous tubules (ST) in the testis parenchyma (~95-97%) and the number of Sertoli cells (SC) (~48-70 million) per testis gram were very high, whereas a fairly good SC efficiency (~8-13 round spermatids per SC) was observed. In comparison to other mammalian species studied, particularly the rodents of the suborder Myomorpha (i.e. hamsters, rats and mice), the rodents herein investigated exhibited very high (~62-80 million) daily sperm production per testis gram. This impressive spermatogenic efficiency resulted mainly from the short duration of spermatogenesis and quite high values found for the ST percentage in the testis and the SC number per testis gram. We expect that the knowledge here obtained will help conservation programs and the proper management of wildlife.
Collapse
Affiliation(s)
- Dirceu A. Cordeiro
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
- UNINCOR, Três Corações, MG, Brazil
| | - Guilherme M. J. Costa
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
| | - Luiz R. França
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
| |
Collapse
|
19
|
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
|
20
|
Pereira AD, Bogoni JA, Siqueira MH, Bovendorp RS, Vidotto-Magnoni AP, Orsi ML. Sampling biases of small non-volant mammals (Mammalia: Rodentia and Didelphimorphia) surveys in Paraná state, Brazil. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2021. [DOI: 10.1080/01650521.2021.1891818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Alan Deivid Pereira
- Laboratório de Ecologia de Peixes e Invasões Biológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Juliano André Bogoni
- School of Environmental Sciences, University of East Anglia, Norwich, UK
- 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
| | - Micaela Heloise Siqueira
- Laboratório de Ecologia e Comportamento Animal, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Ricardo Siqueira Bovendorp
- Laboratório de Ecologia Aplicado à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Ana Paula Vidotto-Magnoni
- Laboratório de Ecologia e Comportamento Animal, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Mário Luís Orsi
- Laboratório de Ecologia de Peixes e Invasões Biológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| |
Collapse
|
21
|
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]
|
22
|
Stevens RD. Editor’s Choice. J Mammal 2021. [DOI: 10.1093/jmammal/gyaa122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Richard D Stevens
- Department of Natural Resources Management and Natural Science Research Laboratory of the Museum, Texas Tech University, Lubbock, USA
| |
Collapse
|
23
|
Monticelli C, Antunes TC, Moraes KSD, Morais LH, Moraes AAD. Species composition of small non-volant mammals in the Parque Estadual das Fontes do Ipiranga, São Paulo, Brasil. BIOTA NEOTROPICA 2021. [DOI: 10.1590/1676-0611-bn-2020-1128] [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: This study provides the first inventory of small non-volant mammals in the Parque Estadual das Fontes do Ipiranga (PEFI), a protected area in the city of São Paulo, Brazil. The data was collected from 2015 to 2017 in 16 research campaigns with a duration of five days each. Four areas with different phytophysiognomies were sampled throughout the dry and rainy seasons. We sampled small mammals using live-capture and pitfall traps. Eleven species were captured, composed of six rodents and five marsupials. The sampling effort involved 5,600 traps/night, there were 527 capture events, and we captured 302 distinct individuals: 174 marsupials and 128 rodents. Recaptures accounted for 42.7% of the total captures. No significant differences were observed in the richness and abundance of small non-volant mammals between the different phytophysiognomies. We also found no significant differences in the richness and abundance of small non-volant mammals between the dry and rainy seasons. The relative abundance (Ar) and constancy index (C) of the species showed that the three most abundant and common species in the PEFI are: Didelphis aurita, Akodon montensis and Oligoryzomys nigripes, which represented 93.7% of the captures. Tomahawk traps accounted for 69% of the total captures, and pitfall traps were responsible for detecting the greatest richness, capturing 81.8% of the species. Comparing the efficiency of the different sampling methods in capturing small mammals in the PEFI, we observed significant differences between both pitfall versus Tomahawk and pitfall versus Sherman in the understory. The results obtained in this study are consistent with the past and current situations of the forest fragment which are in recovery after significant altered by anthropic activity. In light of this scenario of degradation and isolation, a defaunation process affecting the mastofauna is very likely in the PEFI, which favors the establishment and dominance of generalist species. This study could be the basis for further monitoring programs of small non-volant mammals. The data obtained here will also increase knowledge about the diversity of small mammals in urban fragments of the Atlantic Forest and demonstrate the importance of the PEFI for the maintenance of ecologically important species within the largest metropolitan region in Brazil. These species play important biological roles for the maintenance of ecological interactions and for the provision of rare ecosystem services for the anthropic landscape, which is of great value to the city of São Paulo.
Collapse
|
24
|
Blowes SA, Supp SR, Antão LH, Bates A, Bruelheide H, Chase JM, Moyes F, Magurran A, McGill B, Myers-Smith IH, Winter M, Bjorkman AD, Bowler DE, Byrnes JEK, Gonzalez A, Hines J, Isbell F, Jones HP, Navarro LM, Thompson PL, Vellend M, Waldock C, Dornelas M. The geography of biodiversity change in marine and terrestrial assemblages. Science 2020; 366:339-345. [PMID: 31624208 DOI: 10.1126/science.aaw1620] [Citation(s) in RCA: 217] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 09/10/2019] [Indexed: 12/19/2022]
Abstract
Human activities are fundamentally altering biodiversity. Projections of declines at the global scale are contrasted by highly variable trends at local scales, suggesting that biodiversity change may be spatially structured. Here, we examined spatial variation in species richness and composition change using more than 50,000 biodiversity time series from 239 studies and found clear geographic variation in biodiversity change. Rapid compositional change is prevalent, with marine biomes exceeding and terrestrial biomes trailing the overall trend. Assemblage richness is not changing on average, although locations exhibiting increasing and decreasing trends of up to about 20% per year were found in some marine studies. At local scales, widespread compositional reorganization is most often decoupled from richness change, and biodiversity change is strongest and most variable in the oceans.
Collapse
Affiliation(s)
- Shane A Blowes
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany. .,Martin Luther University Halle-Wittenberg, Institute of Computer Science, Halle (Saale), Germany
| | - Sarah R Supp
- Data Analytics Program, Denison University, Granville, OH, USA.
| | - Laura H Antão
- Centre for Biological Diversity, School of Biology, University of St. Andrews, St. Andrews, UK.,Department of Biology and CESAM, Universidade de Aveiro, Aveiro, Portugal.,Research Centre for Ecological Change, Organismal and Evolutionary Biology Research Programme, University of Helsinki, Helsinki, Finland
| | - Amanda Bates
- Department of Ocean Sciences, Memorial University of Newfoundland, Newfoundland, Canada
| | - Helge Bruelheide
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany.,Martin Luther University Halle-Wittenberg, Institute of Biology/Geobotany and Botanical Garden, Halle (Saale), Germany
| | - Jonathan M Chase
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany.,Martin Luther University Halle-Wittenberg, Institute of Computer Science, Halle (Saale), Germany
| | - Faye Moyes
- Centre for Biological Diversity, School of Biology, University of St. Andrews, St. Andrews, UK
| | - Anne Magurran
- Centre for Biological Diversity, School of Biology, University of St. Andrews, St. Andrews, UK
| | - Brian McGill
- School of Biology and Ecology, University of Maine, Orono, ME, USA
| | | | - Marten Winter
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany
| | - Anne D Bjorkman
- Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre (BiK-F), Frankfurt am Main, Germany
| | - Diana E Bowler
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany
| | - Jarrett E K Byrnes
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | - Andrew Gonzalez
- Department of Biology, Quebec Centre for Biodiversity Science, McGill University, Montreal, QC, Canada
| | - Jes Hines
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany.,Leipzig University, Institute of Biology, Leipzig, Germany
| | - Forest Isbell
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN, USA
| | - Holly P Jones
- Department of Biological Sciences and Institute for the Study of the Environment, Sustainability, and Energy, Northern Illinois University, DeKalb, IL, USA
| | - Laetitia M Navarro
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany.,Martin Luther University Halle-Wittenberg, Institute of Biology/Geobotany and Botanical Garden, Halle (Saale), Germany
| | - Patrick L Thompson
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Mark Vellend
- Département de biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Conor Waldock
- Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton, UK & Life Sciences, Natural History Museum, Cromwell Road, London, UK
| | - Maria Dornelas
- Centre for Biological Diversity, School of Biology, University of St. Andrews, St. Andrews, UK.
| |
Collapse
|
25
|
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.
Collapse
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
| |
Collapse
|
26
|
de Oliveira ML, de Faria Peres PH, Gatti A, Morales-Donoso JA, Mangini PR, Duarte JMB. Faecal DNA and camera traps detect an evolutionarily significant unit of the Amazonian brocket deer in the Brazilian Atlantic Forest. EUR J WILDLIFE RES 2020. [DOI: 10.1007/s10344-020-1367-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
27
|
de la Sancha NU, Maestri R, Bovendorp RS, Higgins CL. Disentangling drivers of small mammal diversity in a highly fragmented forest system. Biotropica 2020. [DOI: 10.1111/btp.12745] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noe U. de la Sancha
- Department of Biological Sciences Chicago State University Chicago IL USA
- Integrative Research Center The Field Museum of Natural History Chicago IL USA
| | - Renan Maestri
- Departamento de Ecologia Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Ricardo S. Bovendorp
- Departamento de Ciências Biológicas Universidade Estadual de Santa Cruz Ilhéus BA Brazil
| | | |
Collapse
|
28
|
de la Sancha NU, Boyle SA. Predictive sampling effort and species-area relationship models for estimating richness in fragmented landscapes. PLoS One 2019; 14:e0226529. [PMID: 31891589 PMCID: PMC6938349 DOI: 10.1371/journal.pone.0226529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 11/29/2019] [Indexed: 11/20/2022] Open
Abstract
Loss of habitat, specifically deforestation, is a major driver of biodiversity loss. Species-area relationship (SAR) models traditionally have been used for estimating species richness, species loss as a function of habitat loss, and extrapolation of richness for given areas. Sampling-species relationships (SSRs) are interrelated yet separate drivers for species richness estimates. Traditionally, however, SAR and SSR models have been used independently and not incorporated into a single approach. We developed and compared predictive models that incorporate sampling effort species-area relationships (SESARS) along the entire Atlantic Forest of South America, and then applied the best-fit model to estimate richness in forest remnants of Interior Atlantic Forest of eastern Paraguay. This framework was applied to non-volant small mammal assemblages that reflect different tolerances to forest loss and fragmentation. In order to account for differences in functionality we estimated small mammal richness of 1) the entire non-volant small mammal assemblage, including introduced species; 2) the native species forest assemblage; and 3) the forest-specialist assemblage, with the latter two assemblages being subsets of the entire assemblage. Finally, we geospatially modeled species richness for each of the three assemblages throughout eastern Paraguay to identify remnants with high species richness. We found that multiple regression power-law interaction-term models that only included area and the interactions of area and sampling as predictors, worked best for predicting species richness for the entire assemblage and the native species forest assemblage, while several traditional SAR models (logistic, power, exponential, and ratio) best described forest-specialist richness. Species richness was significantly different between assemblages. We identified obvious remnants with high species richness in eastern Paraguay, and these remnants often were geographically isolated. We also found relatively high predicted species richness (in relation to the entire range of predicted richness values) in several geographically-isolated, medium-size forest remnants that likely have not been considered as possible priority areas for conservation. These findings highlight the importance of using an empirical dataset, created using sources representing diverse sampling efforts, to develop robust predictive models. This approach is particularly important in geographic locations where field sampling is limited yet the geographic area is experiencing rapid and dramatic land cover changes. When combined, area and sampling are powerful modeling predictors for questions of biogeography, ecology, and conservation, especially when addressing habitat loss and fragmentation.
Collapse
Affiliation(s)
- Noé U. de la Sancha
- Department of Biological Sciences, Chicago State University, Chicago, Illinois, United States of America
- Integrative Research Center, The Field Museum of Natural History, Chicago, Illinois, United States of America
- * E-mail:
| | - Sarah A. Boyle
- Department of Biology, Rhodes College, Memphis, Tennessee, United States of America
| |
Collapse
|
29
|
Marjakangas E, Abrego N, Grøtan V, Lima RAF, Bello C, Bovendorp RS, Culot L, Hasui É, Lima F, Muylaert RL, Niebuhr BB, Oliveira AA, Pereira LA, Prado PI, Stevens RD, Vancine MH, Ribeiro MC, Galetti M, Ovaskainen O. Fragmented tropical forests lose mutualistic plant–animal interactions. DIVERS DISTRIB 2019. [DOI: 10.1111/ddi.13010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Emma‐Liina Marjakangas
- Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
| | - Nerea Abrego
- Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
- Department of Agricultural Sciences University of Helsinki Helsinki Finland
| | - Vidar Grøtan
- Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
| | - Renato A. F. Lima
- Departamento de Ecologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Carolina Bello
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Ricardo S. Bovendorp
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Laurence Culot
- Departamento de Zoologia e Centro de Aquicultura Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Érica Hasui
- Instituto de Ciências da Natureza Universidade Federal de Alfenas Alfenas Brazil
| | - Fernando Lima
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
- IPÊ – Instituto de Pesquisas Ecológicas Nazaré Paulista Brazil
| | - Renata Lara Muylaert
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Bernardo Brandão Niebuhr
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Alexandre A. Oliveira
- Departamento de Ecologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Lucas Augusto Pereira
- Departamento de Zoologia e Centro de Aquicultura Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Paulo I. Prado
- Departamento de Ecologia Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Richard D. Stevens
- Department of Natural Resources Management Texas Tech University Lubbock TX USA
- Museum of Texas Tech University Lubbock TX USA
| | - Maurício Humberto Vancine
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Milton Cezar Ribeiro
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
| | - Mauro Galetti
- Departamento de Ecologia Instituto de Biociências Universidade Estadual Paulista (UNESP) Rio Claro Brazil
- Department of Biology University of Miami Miami FL USA
| | - Otso Ovaskainen
- Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
- Faculty of Biological and Environmental Sciences University of Helsinki Helsinki Finland
| |
Collapse
|
30
|
Muylaert RL, Sabino-Santos G, Prist PR, Oshima JEF, Niebuhr BB, Sobral-Souza T, Oliveira SVD, Bovendorp RS, Marshall JC, Hayman DTS, Ribeiro MC. Spatiotemporal Dynamics of Hantavirus Cardiopulmonary Syndrome Transmission Risk in Brazil. Viruses 2019; 11:E1008. [PMID: 31683644 PMCID: PMC6893581 DOI: 10.3390/v11111008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 10/27/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Hantavirus disease in humans is rare but frequently lethal in the Neotropics. Several abundant and widely distributed Sigmodontinae rodents are the primary hosts of Orthohantavirus and, in combination with other factors, these rodents can shape hantavirus disease. Here, we assessed the influence of host diversity, climate, social vulnerability and land use change on the risk of hantavirus disease in Brazil over 24 years. METHODS Landscape variables (native forest, forestry, sugarcane, maize and pasture), climate (temperature and precipitation), and host biodiversity (derived through niche models) were used in spatiotemporal models, using the 5570 Brazilian municipalities as units of analysis. RESULTS Amounts of native forest and sugarcane, combined with temperature, were the most important factors influencing the increase of disease risk. Population at risk (rural workers) and rodent host diversity also had a positive effect on disease risk. CONCLUSIONS Land use change-especially the conversion of native areas to sugarcane fields-can have a significant impact on hantavirus disease risk, likely by promoting the interaction between the people and the infected rodents. Our results demonstrate the importance of understanding the interactions between landscape change, rodent diversity, and hantavirus disease incidence, and suggest that land use policy should consider disease risk. Meanwhile, our risk map can be used to help allocate preventive measures to avoid disease.
Collapse
Affiliation(s)
- Renata L Muylaert
- Department of Ecology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro 13506-900, Brazil.
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North 4474, New Zealand.
| | - Gilberto Sabino-Santos
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto 14049-900, Brazil.
- Vitalant Research Institute, 270 Masonic Avenue, San Francisco, CA 94118, USA.
- Department of Laboratory Medicine, University of California, San Francisco, 270 Masonic Avenue, San Francisco, CA 94118, USA.
| | - Paula R Prist
- Department of Ecology, Biosciences Institute, University of São Paulo, São Paulo 05508-900, Brazil.
| | - Júlia E F Oshima
- Department of Ecology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro 13506-900, Brazil.
| | - Bernardo Brandão Niebuhr
- Department of Ecology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro 13506-900, Brazil.
- Centro Nacional de Pesquisa e Conservação de Mamíferos, Carnívoros (CENAP), Instituto Chico Mendes de Conservação (ICMBio), Estrada Municipal Hisaichi Takebayashi, 8600-Bairro da Usina, Atibaia 12.952-011, Brazil.
- Instituto Pró-Carnívoros, Av. Horácio Neto 1030, Parque Edmundo Zanoni Atibaia 12945-010, Brazil.
| | - Thadeu Sobral-Souza
- Department of Botany and Ecology, Federal University of Mato Grosso (UFMT), Cuiabá 78060-900, Brazil.
| | - Stefan Vilges de Oliveira
- Departamento de Saúde Coletiva da Faculdade de Medicina, Universidade Federal de Uberlândia, Avenida Pará, 1720, Campus Umuarama, Uberlândia 38405-320, Brazil.
| | | | - Jonathan C Marshall
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North 4474, New Zealand.
| | - David T S Hayman
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North 4474, New Zealand.
| | - Milton Cezar Ribeiro
- Department of Ecology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro 13506-900, Brazil.
| |
Collapse
|
31
|
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.
Collapse
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
| |
Collapse
|
32
|
Mendes CP, Koprowski JL, Galetti M. NEOSQUIRREL: a data set of ecological knowledge on Neotropical squirrels. Mamm Rev 2019. [DOI: 10.1111/mam.12152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Calebe Pereira Mendes
- Laboratório de Biologia da Conservação (LABIC)Departamento de EcologiaInstituto de BiociênciasUniversidade Estadual Paulista (UNESP) Avenida 24A,1515, ZIP 13506‐900, Rio Claro São Paulo Brazil
| | - John L. Koprowski
- School of Natural Resources and the EnvironmentUniversity of Arizona Tucson AZ 85721 USA
| | - Mauro Galetti
- Departamento de EcologiaInstituto de BiociênciasUniversidade Estadual Paulista (UNESP) Rio Claro São Paulo Brazil
| |
Collapse
|
33
|
Expansion of the range of Necromys lasiurus (Lund, 1841) into open areas of the Atlantic Forest biome in Rio de Janeiro state, Brazil, and the role of the species as a host of the hantavirus. Acta Trop 2018; 188:195-205. [PMID: 30149024 DOI: 10.1016/j.actatropica.2018.08.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/13/2023]
Abstract
Necromys lasiurus is a generalist rodent that is thought to be the main reservoir of the Araraquara hantavirus, which causes Hantavirus Pulmonary Syndrome, in the Brazilian Cerrado savanna. This species occurs naturally in the open habitats of the Cerrado, Pantanal and Caatinga biomes, where it often occurs at high densities, although the distribution of the species has recently been observed expanding into the Brazilian state of Rio de Janeiro. This study aimed to map the occurrence of N. lasiurus within the Atlantic Forest of Rio de Janeiro state and discuss the potential role of the species as a reservoir of the Araraquara hantavirus in these areas. The study was based on a comprehensive literature search and four expeditions for the collection of specimens in the state of Rio de Janeiro. The data were used to predict the distribution of N. lasiurus, confirm the distribution of the species in the state, and detect the rates of hantavirus infection in these rodents. Necromys lasiurus has been recorded at 16 localities in 10 municipalities of Rio de Janeiro state. The relative abundance of N. lasiurus was low at all localities, except for the REBIO Poço das Antas and APA-BRSJ, two protected areas. Necromys lasiurus was associated primarily with landscapes dominated by farmland (plantations or pasture) at relatively low altitudes in the vicinity of bodies of water. A total of 204 serum samples were collected, but none were reactive for hantavirus. The distribution of N. lasiurus is expanding into many areas of the anthropogenic matrix, but it is not usually either abundant or dominant in these areas. The relatively reduced abundance of N. lasiurus in Rio de Janeiro and the lack of infection in all the areas investigated indicate that it is unlikely to be a reservoir of hantavirus in this region in the near future.
Collapse
|
34
|
Varzinczak LH, Moura MO, Lima CS, Passos FC. How do bat, rodent, and marsupial communities respond to spatial and environmental gradients? Insights from a deconstruction of mammal beta diversity from the Atlantic Forest of South America. Oecologia 2018; 189:851-861. [PMID: 30382388 DOI: 10.1007/s00442-018-4288-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 10/22/2018] [Indexed: 11/26/2022]
Abstract
Space and environment are fundamental in influencing the community structure. However, their relative influences vary according to species' biological characteristics. Here we test whether differences in life-history traits mainly linked to dispersal abilities influence bat, rodent and marsupial beta diversity along spatial and environmental gradients. We expect bat beta diversity to be weakly related with space in comparison to dispersal-limited rodents and marsupials. Using data from communities distributed along the Atlantic Forest of South America, we calculated the total beta diversity and its turnover and nestedness components for each group. We estimated the strength of correlation of beta diversity and its components along spatial and environmental gradients, comparing their importance within and between groups. Space had the higher influence on rodent and marsupial beta diversity. For bats, both gradients influenced similarly their community composition. Between taxa, the influence of these gradients did not differ for rodents and marsupials, while bats presented a stronger relationship with environment compared to non-volant small mammals. Also, all groups presented a similar influence of the spatial gradients on their community structure, despite their differences in dispersal abilities. Our results suggest that differences in biological characteristics partially influence the community structure of these mammals, with their responses along space likely reflecting similar biogeographical dynamics affecting their distribution. Overall, our results improve the understanding of the processes structuring these communities, highlighting the benefits of comparative analyses within a beta diversity perspective to better understand the influence of multiple processes on the community assembly along geographical gradients.
Collapse
Affiliation(s)
- Luiz H Varzinczak
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.
| | - Mauricio O Moura
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Camila S Lima
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Fernando C Passos
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| |
Collapse
|
35
|
de Abreu-Júnior EF, Percequillo AR, Geise L, Leite YL, Loss AC. Unveiling the identity of Kerr's Atlantic tree rat, Phyllomys kerri (Rodentia, Echimyidae). Mamm Biol 2018. [DOI: 10.1016/j.mambio.2018.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
36
|
Percequillo AR, Dalapicolla J, Abreu-Júnior EF, Roth PRO, Ferraz KM, Chiquito EA. How many species of mammals are there in Brazil? New records of rare rodents (Rodentia: Cricetidae: Sigmodontinae) from Amazonia raise the current known diversity. PeerJ 2017; 5:e4071. [PMID: 29259840 PMCID: PMC5733914 DOI: 10.7717/peerj.4071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/30/2017] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Since 1996, when Vivo questioned how many species of mammals occur in Brazil, there has been a huge effort to assess this biodiversity. In this contribution, we present new records for rare species of the sigmodontine rodent genera Rhagomys and Neusticomys previously unknown to Brazilian Amazon. We provided detailed information on the morphologic variation to allow the proper identification of these species. We also furnished updated information on their collection, aiming to establish hypothesis of their geographic distribution, based on SDM's, aiming to hypothesize potential occurrence areas for these species. METHODS Rodent specimens were sampled in separate inventories in two sites of Rondônia State (Hydroelectric Dam Jirau and Parque Nacional de Pacaás Novos) and one site in Pará State (Pacajá), Brazil, and were compared to specimens from museum collections to apply appropriate names. The SDM were conducted using two algorithms for rare species, MaxEnt and randomForest (RF), and were based on seven localities for Rhagomys, and 10 for Neusticomys. RESULTS All specimens were collected with pitfall traps. One specimen of genus Rhagomys was trapped in the Hydroelectric Dam Jirau. We identified this specimen as R. longilingua, and the SDM species indicates suitable areas for its occurrence at high elevations near on the Andes and lowlands of Amazon Basin to the South of the Rio Amazonas. Two specimens of Neusticomys were recorded, and we identified the specimen from Pacaás Novos as N. peruviensis, with SDM suggesting main areas of occurrence on Western Amazon. We applied the name N. ferreirai to the specimen from Pacajá, with SDM recovering suitable areas in Eastern Amazon. DISCUSSION We reinforced the importance of pitfall traps on the study of Neotropical rodents. We described morphologic variation within and among all species that do not invalidate their specific status, but in the near future a re-evaluation will be mandatory. The new records extended the species distribution considerably. SDM was successful to predict their distributions, as the two algorithms presented important differences in range size recovered by the models that can be explained by differences in the thresholds used for the construction of the models. Most suitable areas coincide with the areas facing most of the deforestation in Amazon. We added two rare species of sigmodontine rodents to the list of Brazilian Mammals, which now comprises 722 species (or 775 valid nominal taxa). Although more information is available than in 1996, it is essential that mammal experts maintain inventory and revisionary programs to update and revise this information. This is even more important, as changes in Brazilian environmental legislation are being discussed, suggesting reduced need for environmental impact reports prior to beginning commercial enterprises, resulting in the loss of information about native biodiversity in the affected areas.
Collapse
Affiliation(s)
- Alexandre R. Percequillo
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
- Department of Life Sciences, The Natural History Museum, London, United Kingdon
| | - Jeronymo Dalapicolla
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
- Department of Ecology and Evolutionary Biology, Museum of Zoology, University of Michigan, Ann Arbor, MI, United States of America
| | - Edson F. Abreu-Júnior
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
| | - Paulo Ricardo O. Roth
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
| | - Katia M.P.M.B. Ferraz
- Departamento de Ciências Florestais, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
| | - Elisandra A. Chiquito
- Departamento de Ciências Biológicas, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
- Departamento de Ciências Biológicas, Centro de Ciências Humanas e Naturais, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| |
Collapse
|