The South-American rattlesnake Crotalus durissus: feeding ecology in the central region of Brazil

Author:

Hoyos María Adelaida1,Almeida-Santos Selma Maria2

Affiliation:

1. Universidade da Região de Joinville, Brazil; Universidade de São Paulo, Brazil

2. Instituto Butantan, Brazil; Universidade de São Paulo, Brazil

Abstract

Abstract We investigated food patterns in the diet composition of 452 specimens of Crotalus durissus from Central Brazil. Thirty-three items were recorded corresponding to four categories: rodents (75.76%), marsupials (6.06%), unidentified mammals (9.09%) and reptiles (9.09%). Adults of both sexes and some juveniles feed mostly on mammals, specifically rodents, it is the most active and abundant prey throughout the year mainly in areas from Cerrado. In addition, we observed that in C. durissus there is a trend in the diet of females could be more diverse, maybe this can be associated to sexual differences involving different strategies of the feeding biology of this rattlesnake.

Publisher

FapUNIFESP (SciELO)

Reference44 articles.

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2. Composição, riqueza e abundância de anfíbios e répteis no Alto e Médio Paranapanema, Estado de São Paulo;ARAUJO C.O.,2012

3. Comparative ecology of the mottled rock rattlesnake, Crotalus lepidus;BEAUPRE S.J.;Big Ben National Park,1995

4. Ontogenetic variation in growth and sexual size dimorphism in a Central Arizona population of the western diamondback rattlesnake (Crotalus atrox);BEAUPRE S.J.;Copeia,1998

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