998 resultados para Miramón, Miguel, 1831-1867
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UANL
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UANL
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UANL
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Reseña sobre el proyecto de investigación titulado: San Miguel de Piura, primera fundación española en el Perú.
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At head of title: Academia Colombiana de la Lengua.
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Mode of access: Internet.
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Mode of access: Internet.
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Ambas obras han sido puestas en escena por primera vez en el teatro de Jovellanos la noche del 21 de abril de 1867
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Mode of access: Internet.
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"Supplément au Rapport sur l'instruction publique en Prusse."
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Mode of access: Internet.
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1. Hälfte : Von Tripoli nach kuka (Fessan, Sahara, Bornu)
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Mode of access: Internet.
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Unequal sex ratios lead to the loss of genetic variability, decreasing the viability of populations in the long term. Anthropogenic activities often disturb the natural habitats and can cause alterations in sex ratio and morphological characteristics of several species. Forest fragmentation is a major conservation concern, so that understanding its effects in natural populations is essential. In this study, we evaluated the sex ratio and the morphological characteristics of Rufous Gnateaters (Conopophaga lineata (Wied, 1831)) in small and large forest fragments in Minas Gerais, Brazil. Birds (n = 89) were sexed by plumage characteristics and molecular markers. The molecular analysis showed that plumage is not a totally reliable method for sexing Rufous Gnateaters. We observed that sex ratio did not differ between large and small forest fragments, but birds in small fragments had larger wings and tarsus. Wing and tarsus changes may affect the movement ability of individuals within and among forest fragments. In conclusion, Rufous Gnateaters have been able to survive in both small and large Atlantic rain forest fragments without altering their sex ratio, but morphological changes can be prejudicial to their long term survival.