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Content with tag dwarfism .

Dwarfism in continental populations of natterjack toads in the absence of genetic isolation

Ample variation in body size is common in vertebrates over extensive geographical distances, or in isolated populations, where effective geographical barriers may cause dwarfism or gigantism. The potential causes of extreme size reduction in continental populations of amphibians within a short geographical distance and in the absence of geographical barriers were studied. Natterjack toads Epidalea calamita in Doñana National Park (Spain) experience up to 2.1?fold difference in body mass in as...