Padrões e processos ecológicos e evolutivos em escala regional
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2009-12
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Resumo
During the last 200 years, ecologists and biogeographers have hardly attempted to find out which
processes are implicated on the generation and maintenance of the broad scale biodiversity gradients.
Here we address the main hypotheses concerning diversity patterns and highlight how ecological
and evolutionary models can be integrated to explain these patterns. To illustrate this perspective,
we analyzed the gradient in species richness of New World coral snakes (Elapidae: Serpentes) and
interpreted the outputs under alternative integrated models. Our results show that ecological
processeses alone are not sufficient to account for the richness pattern in this group, although about
70% of the spatial variation in species richness can be explained by environmental drivers. The analysis of phylogenetically-structured richness patterns, as well as simulations of niche conservatism process,
reveals that evolutionary factors must be used to understand these patterns. Finally, we present the
implication of these patterns for biodiversity conservation and suggest how the observed patterns
can be used in systematic conservation planning.
Descrição
v. 5, n. 1-2, p. 5-16, dez. 2009.
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Citação
DINIZ FILHO, José Alexandre Felizola; TERRIBILE, Levi Carina; OLIVEIRA, Guilherme de; RANGEL, Thiago F. L.B.V. Padrões e processos ecológicos e evolutivos em escala regional. Megadiversidade, Belo Horizonte, v. 5, n. 1-2, p. 5-16, dez. 2009. Disponível em: <http://www.conservation.org/global/brasil/publicacoes/Documents/Megadiversidade_desafios_cientificos.pdf>.