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Comparative Food Habits and Body Size of Five Populations of Elaphe quatuorlineata: the Effects of Habitat Variation, and the Consequences of Intersexual Body Size Dimorphism on Diet Divergence
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Copeia
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August 2, 2005
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Copyright informationCopyright American Society of Ichthyologists and Herpetologists Aug 2, 2005. Provided by ProQuest LLC. (Hide copyright information)
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The comparative diet and body size of the Four-Lined Snake (Elaphe quatuorlineata), one of the largest and more vulnerable species of snakes in Mediterranean central Italy, were studied in five different habitats. Data given here collated both literature and original data. Overall, females were significantly larger than males but the strength of these differences varied considerably with sample size. Overall, small mammals (almost exclusively rodents) accounted for the main part of the diet (66.7%), followed by birds and their eggs (mainly Passeriformes; 26.4%), and by lizards (6.9%), although the number of eggs in the diet was probably greatly underestimated. In qualitative terms, both ...
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