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Patch relative importance to metapopulation viability: the neotropical marsupial Micoureus demerarae as a case study
2002; Wiley; Volume: 5; Issue: 1 Linguagem: Inglês
10.1017/s1367943002001063
ISSN1469-1795
AutoresDaniel Brito, Fernando A. S. Fernandez,
Tópico(s)Animal Ecology and Behavior Studies
ResumoAnimal ConservationVolume 5, Issue 1 p. 45-51 Patch relative importance to metapopulation viability: the neotropical marsupial Micoureus demerarae as a case study Daniel Brito, Corresponding Author Daniel Brito Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, CCS, Universidade Federal do Rio de Janeiro, CxP 68020, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, BrazilAll correspondence to: Daniel Brito. Rua Andrade Neves 93/802, Rio de Janeiro, RJ, 20510-230, Brazil. Tel: 55-21-25703505; E-mail: [email protected]Search for more papers by this authorFernando A. S. Fernandez, Fernando A. S. Fernandez Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, CCS, Universidade Federal do Rio de Janeiro, CxP 68020, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, BrazilSearch for more papers by this author Daniel Brito, Corresponding Author Daniel Brito Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, CCS, Universidade Federal do Rio de Janeiro, CxP 68020, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, BrazilAll correspondence to: Daniel Brito. Rua Andrade Neves 93/802, Rio de Janeiro, RJ, 20510-230, Brazil. Tel: 55-21-25703505; E-mail: [email protected]Search for more papers by this authorFernando A. S. Fernandez, Fernando A. S. Fernandez Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, CCS, Universidade Federal do Rio de Janeiro, CxP 68020, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, BrazilSearch for more papers by this author First published: 28 February 2006 https://doi.org/10.1017/S1367943002001063Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract As metapopulation dynamics is thought to play an important role in the conservation of mammals, mainly owing to the fragmentation process, a Population Viability Analysis (PVA) was used to evaluate the role and importance of individual patches to the metapopulation persistence of the long-furred wooly mouse opossum, Micoureus demerarae, a neotropical arboreal marsupial. The metapopulation under study comprises eight small Atlantic Forest patches at Poço das Antas Biological Reserve, southeastern Brazil. The analysis indicates that the local populations may be divided into three groups: (1) in the smallest and most isolated patches, where they are the most endangered, (2) in five circular-shaped and relatively well-connected patches and (3) in the largest patch with the most persistent local population. Knowledge of how specific patches influence metapopulation dynamics is an important tool in guiding management strategies, and dynamics can be affected by factors like patch size and relative position. It seems that for this particular case, probability of metapopulation extinction, mean metapopulation size, heterozygosity and mean growth rate were the most informative measures to evaluate a patch's contribution to metapopulation persistence. Despite all controversies, metapopulation theory, when carefully and properly applied, is a valuable tool in conservation biology. REFERENCES Ballou, J. (1992). Small population overview. In VORTEX: a stochastic simulation of the extinction process. Version 5 user's manual: 40– 49. R. Lacy & T. Kreeger (Eds). Apple Valley : Conservation Breeding Specialist Group (SSC/IUCN). Beissinger, S. R. & Westphal, M. I. (1998). On the use of demographic models of population viability in endangered species management. J. Wildl. Mgmt. 62(3): 821– 841. 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