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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.)

An index for defaunation

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Autor(es):
Giacomini, Henrique C. [1] ; Galetti, Mauro [2]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3G5 - Canada
[2] UNESP Sao Paulo State Univ, Lab Biol Conservacao, BR-13506900 Rio Claro, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Biological Conservation; v. 163, n. SI, p. 33-41, JUL 2013.
Citações Web of Science: 13
Resumo

Defaunation, originally conceived as the loss of large vertebrates due to hunting or fragmentation, has been widely used in conservation studies yet the term has been arbitrarily used and poorly defined. Here we refine this term by creating a quantitative index that can be used to compare ecological communities over large zoogeographical regions. We propose a defaunation index (D) as a weighted measure of dissimilarity between the current assemblage of a given location and a reference assemblage that represents a historical and/or unperturbed state. We analyzed the index by means of three case studies that included two empirical assessments of mammal communities in Neotropical rainforests and one hypothetical example, encompassing a variety of criteria to quantify differences in species density and importance. These cases illustrate the broad range of index applicability and show that incorporating functional differences among species, such as those based on body size, conservation status or evolutionary originality can add important information beyond simply species richness. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 07/03392-6 - Efeitos de um gradiente de defaunação na herbivoria, predação e dispersão de sementes: uma perspectiva na Mata Atlântica
Beneficiário:Mauro Galetti Rodrigues
Linha de fomento: Auxílio à Pesquisa - Temático