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- W2015011517 abstract "Abstract Few studies have investigated the level of individual variation in diet composition of poisonous frogs and toads. We compare the diet composition of three populations of a poisonous toad, Melanophryniscus rubriventris, and predicted that toads within a population might be constrained to forage on particular types of alkaloid-containing prey and consequently diets among populations might not diverge from each other. Most important prey categories in the diets of the three populations consisted of the same ground-dwelling arthropods. We found evidence for individuals consuming different arrays of prey types in all populations implying that this “generalist” species is actually comprised of individuals eating different sets of the available range of prey. Formicidae, Acari, and Coleoptera were all important alkaloid-containing prey items in the diets of all populations and individuals, although there were differences in their order of importance among populations and individuals use different sets of the entire range of alkaloid-containing preys. Future research should evaluate individual diet variation in other poisonous anurans taxa given that shifts in diet composition might have important implications for understanding the consequences of alternate foraging strategies in the evolution of defensive strategies among species." @default.
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- W2015011517 date "2011-01-01" @default.
- W2015011517 modified "2023-10-18" @default.
- W2015011517 title "Population diet variation and individual specialization in the poison toad, Melanophryniscus rubriventris (Vellard, 1947)" @default.
- W2015011517 doi "https://doi.org/10.1163/017353710x546530" @default.
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