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Cada especie tiene un hábitat óptimo definido por sus características ecológicas. Sin embargo, una especie también puede desplazarse y vivir en hábitats cuyas características no le son tan propicias. Estos hábitats, de menor calidad, se conocen con el nombre de hábitats marginales. Las poblaciones que viven hábitats marginales lo hacen a costa de una reducción en su reproducción y supervivencia. Leer más.

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Model‐based clustering analyses with STRUCTURE revealed minor differences in genetic structure between marker types, but inconsistent values of the optimal number of populations (K) inferred. SNPs yielded more repeatable and less admixed ancestries with increasing K compared to microsatellites. Genetic diversity was weakly correlated between marker types, with SNPs providing a better representation of southern refugia and of gradients of genetic diversity congruent with the demographic history of both species. Leer Más.

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In the natural population, we found no differences between morphs in site fidelity, space use, or male–female spatial overlap. Likewise, color morph was irrelevant to sociosexual behavior, space use, and reproductive success within experimental enclosures. Our results contradict the commonly held hypothesis that P. muralis morphs reflect alternative behavioral strategies, and suggest that we should instead turn our attention to alternative functional explanations. Leer más.

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