Article: article from journal or magazin.
Geographic variation in the age of temperate-zone reptile and amphibian species: Southern Hemisphere species are older.
Despite controversy over alternative definitions, the species is the fundamental operational unit of biodiversity, and species are the building-blocks of conservation. But is a 'species' from one part of the world the same as a 'species' from elsewhere? Our meta-analysis of molecular phylogenetic data reveals that reptile and amphibian species distributed in temperate-zone areas of the Northern Hemisphere are younger than taxa from the Southern Hemisphere, probably reflecting the greater impact of past climatic variation on Northern Hemisphere habitats. Because a species' age may influence its vulnerability to anthropogenic threats, geographical variation in species ages should be incorporated into conservation planning.
Amphibians/physiology, Animals, Climate, Demography, Evolution, Molecular, Reptiles/physiology
Web of science
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