Response to Comment on "Habitat Split and the Global Decline of Amphibians"
Carlos Roberto Fonseca1,
Carlos Guilherme Becker1,2,
Célio Fernando Baptista Haddad3 and
Paulo Inácio Prado4*
1 Laboratório de Interação Animal-Planta, Centro 2, Universidade do Vale do Rio dos Sinos, 93022-970 São Leopoldo RS, Brazil.
2 Pós-Graduação em Ecologia, Universidade Estadual de Campinas, 13083-970 Campinas SP, Brazil.
3 Departamento de Zoologia, Universidade Estadual Paulista Júlio de Mesquita Filho, Caixa, Postal 199, 13506-900 Rio Claro SP, Brazil.
4 Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, 05508-900 São Paulo SP, Brazil.
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Fig. 1. Effect of habitat split on species richness of leaf-litter amphibians with aquatic larvae across 12 Brazilian Atlantic Forest landscapes. The dotted line represents the expected values for model 1, where the proportion of aquatic species out of the total number of species is constant [Sal = (21.2 – 0.099 St)(0.647)]. The continuous line represents the expected values for model 2, where the proportion of aquatic species is a linear function of habitat split [Sal = (21.2 – 0.095 St)(0.841 – 0.005 St)]. Model 2 provides a better fit (deviance D = 6.44, df = 1, P = 0.011). St stands for total species richness and Sal for number of species with aquatic larvae.
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Fig. 2. Path analysis model showing the relative strength of habitat split, habitat loss, and habitat fragmentation on the prevalence of species with aquatic larvae. The prevalence is measured by the residuals of a linear regression between the number of species with aquatic larvae (log) and the total number of species (log) for 12 Brazilian Atlantic Forest landscapes.
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