Tesis
Análise genética molecular (RAPD) de Conopophaga melanops, Vieillot 1818 (Aves, Conopophagidae), em escala fina da Mata Atlântica e sua implicação para a conservação da espécie.
Fecha
2004-05-07Registro en:
LUNARDI, Vitor de Oliveira. Análise genética molecular (RAPD) de Conopophaga melanops, Vieillot 1818 (Aves, Conopophagidae), em escala fina da Mata Atlântica e sua implicação para a conservação da espécie.. 2004. 75 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2004.
Autor
Lunardi, Vitor de Oliveira
Institución
Resumen
Conopophaga melanops is an endemic Atlantic forest bird species that had its habitat
drastically fragmented by the historical process of massive deforestation. Today, its
populations have survived isolated in small fragments and a few continuous forests,
compromising the potential of the species to overcome natural and anthropic
disturbances. The aim of this study was to estimate genetic differentiation among and
within three populations of C. melanops in the major protected continuum of an Atlantic
forest reminiscent using RAPD-PCR, to provide a better understanding of the
geographical patterns of genetic variation of the species in fine scale and original context.
The genetic molecular analyses showed a statistically significant genetic divergence
among the three C. melanops populations in a continuum transect of 250 km. Primarily,
this could be explained by the assumed sedentarism of the species and by the
geographical barriers to gene flow. Pleistocene refuges and recent human impact could be
adictional factors to explain the current genetic diferentiation.