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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Defaunation and fragmentation erode small mammal diversity dimensions in tropical forests

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Autor(es):
Bovendorp, Ricardo S. [1] ; Brum, Fernanda T. [2, 3] ; McCleery, Robert A. [4] ; Baiser, Benjamin [4] ; Loyola, Rafael [2] ; Cianciaruso, Marcus V. [2] ; Galetti, Mauro [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista UNESP, Dept Ecol, Inst Biociencias, Rio Claro, SP - Brazil
[2] Univ Fed Goias, Dept Ecol, Goiania, Go - Brazil
[3] Univ Fed Parana, Programa Posgrad Ecol & Conservacao, Curitiba, Parana - Brazil
[4] Univ Florida, Dept Wildlife Ecol & Conservat, Gainesville, FL - USA
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: ECOGRAPHY; v. 42, n. 1, SI, p. 23-35, JAN 2019.
Citações Web of Science: 1
Resumo

Forest fragmentation and defaunation are considered the main drivers of biodiversity loss, yet the synergistic effects of landscape changes and biotic interactions on assemblage structure have been poorly investigated. Here, we use an extensive dataset of 283 assemblages and 105 species of small mammals to understand how defaunation of medium and large mammals and forest fragmentation change the community composition and diversity of rodents and marsupials in tropical forests of South America. We used structured equation models to investigate the relationship between small mammal species, functional and phylogenetic diversity with forest size, forest cover and the occurrence of medium and large mammals. The best-fit model showed that defaunation reduced functional diversity, and that species diversity of small mammals increased with forest patch size. Forest cover did not affect functional and phylogenetic diversity. Our results indicate that occurrence of medium and large sized mammals (probably acting as predators, or competitors of small mammals) and forest patch size help to retain species and functional diversity in small mammal communities. Further, the number of species in a small mammal community was critical to the maintenance of phylogenetic diversity, and may have a pronounced influence on the ecological functions played by small mammals. Identifying how phylogenetic and functional diversity change in function of human pressures allows us to better understand the contribution of extant lineages to ecosystem functioning in tropical forests. (AU)

Processo FAPESP: 13/25441-0 - Mudança na diversidade funcional e filogenética de pequenos mamíferos em paisagens defaunadas na Mata Atlântica
Beneficiário:Ricardo Siqueira Bovendorp
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 14/18800-6 - Efeitos do tamanho do fragmento florestal e os limiares da diversidade funcional e filogenética para pequenos mamíferos na Mata Atlântica
Beneficiário:Ricardo Siqueira Bovendorp
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
Processo FAPESP: 14/01986-0 - Consequências ecológicas da defaunação na Mata Atlântica
Beneficiário:Mauro Galetti Rodrigues
Linha de fomento: Auxílio à Pesquisa - Temático