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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.)

Effects of cornfields on small mammal communities: a test in the Atlantic Forest hotspot

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Autor(es):
de Carvalho Braga, Caryne Aparecida [1] ; Prevedello, Jayme Augusto [2] ; Silverio Pires, Maria Rita [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Biodiversidade Evolucao & Meio Ambiente, Lab Zool Vertebrados, BR-35400000 Ouro Preto, MG - Brazil
[2] Univ Sao Paulo, Dept Ecol, Lab Ecol Paisagem & Conservacao, BR-05508900 Sao Paulo, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF MAMMALOGY; v. 96, n. 5, p. 938-945, SEP 29 2015.
Citações Web of Science: 2
Resumo

Croplands have expanded dramatically during the last century, frequently leading to severe biodiversity losses within occupied areas. In addition to such direct influences, croplands may also have affected biodiversity within adjacent natural habitats, yet such potential indirect effects have rarely been quantified. Here, we test for effects of cornfields on small mammal communities inhabiting forest fragments in the Atlantic Forest biodiversity hotspot, Brazil. We test the hypotheses that cornfields increase the abundance and dominance of granivorous small mammals in adjacent forest fragments but reduce the abundance of nongranivorous species and community richness. To test these hypotheses, we used a replicated randomized block design, comparing communities located at forest interiors, forest-cornfield edges, and also forest-road edges. The abundance of granivorous small mammals was significantly higher at forest-cornfield edges compared to the other treatments, whereas insectivorous-omnivorous species had an apparently neutral response to the edges. Forest-cornfield edges harbored fewer small mammal species and tended to have a greater dominance of granivores. Forest-cornfield and forest-road edges harbored species characteristic of both forested and nonforested habitats. Our findings suggest that cornfields alter the structure of native small mammal communities, mostly by providing complementary resources for granivores. (AU)

Processo FAPESP: 13/03457-1 - Efeitos geométricos em paisagens fragmentadas: um novo enfoque de investigação em ecologia de paisagens
Beneficiário:Jayme Augusto Prevedello
Linha de fomento: Bolsas no Brasil - Pós-Doutorado