The Role of Feeding Specialization on Post-Prandial Metabolic Rate in Snakes of the Genus Bothrops

Autor(es)

Stuginski, Daniel Rodrigues ^[1] ; Navas, Carlos Arturo ^[2] ; de Barros, Fabio Cury ^[3] ; Grego, Kathleen Fernandes ^[1] ; Martins, Marcio ^[2] ; de Carvalho, Jose Eduardo ^[3]

Afiliação do(s) autor(es)

^[1] Inst Butantan, BR-05503900 Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, BR-05508090 Sao Paulo, SP - Brazil

^[3] Univ Fed Sao Paulo, BR-09972270 Diadema, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ZOOLOGICAL SCIENCE; v. 35, n. 4, p. 373-381, AUG 2018.
• Citações Web of Science: 0

Resumo

Feeding specialization is a recurrent issue in the evolution of snakes and is sometimes associated to morphological and/or behavioral adaptations that improve snake performance to exploit a particular food type. Despite its importance for animal fitness, the role of physiological traits has been much less studied than morphological and behavioral traits in the evolution of feeding specialization in snakes. In this context, the energetic cost of post-prandial period is an important physiological factor due to the remarkable effect on the snake energy budget. We collected data on post-prandial metabolic rate (SDA) in five species of pit vipers from the genus Bothrops with different degrees of mammal feeding specialization to test the hypothesis that feeding specialist species have lower energy costs during the digestion of their regular food item when compared to species with a more generalist diet. Our results support this hypothesis and suggest that ontogenetic changes in diet can be accompanied by changes in energy cost of the digestion process. (AU)

• Processo FAPESP: 09/53202-4 - Taxas metabolicas de repouso e pos-prandiais em serpentes do genero bothrops, com enfase nos aspectos ontogeneticos e filogeneticos (crotalinae).
• Beneficiário: Daniel Rodrigues Stuginski
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/50206-9 - Origem e evolução das serpentes e a sua diversificação na região neotropical: uma abordagem multidisciplinar
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• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 08/57712-4 - Instituto Nacional de Pesquisas em Fisiologia Comparada
• Beneficiário: Augusto Shinya Abe
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 08/57687-0 - Effects of global climate change of the Brazilian fauna: a conservation physiology approach
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• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático