Short-term movements of the South American rattlesnake (Crotalus durissus) in southeastern Brazil

Autor(es)

Tozetti, Alexandro M. ^[1] ; Vettorazzo, Victor ^[2] ; Martins, Marcio ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Rio Grande, Inst Ciencias Biol, Lab Ecol Vertebrados Terrestres, BR-96201900 Rio Grande, RS - Brazil

^[2] Univ Sao Paulo, Inst Biociencias, Dept Ecol, BR-05508 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: HERPETOLOGICAL JOURNAL; v. 19, n. 4, p. 201-206, OCT 2009.
• Citações Web of Science: 12

Resumo

Ecological studies of movements in animals require extensive knowledge of direction, distance and frequency of movements. The purpose of this study was to describe the daily and seasonal movements in a population of the South American rattlesnake, Crotalus durissus. The study population inhabits a cerrado area in southeastern Brazil. Snakes were tracked with externally attached radio-transmitters and thread bobbins. Larger animals tended to make more extensive daily movements, moving further from the initial site of capture. There were no differences in average daily movements between sexes. Site fidelity was higher in the dry season for both sexes. Both sexes moved distances twice as long as those calculated by drawing a straight line between consecutive points. The movement pattern of C. durissus seemed to be similar to that observed in other tropical pit vipers, such as species of the genus Bothrops. (AU)

• Processo FAPESP: 01/13341-3 - Diversidade de anfíbios anuros do estado de São Paulo
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 00/12339-2 - História natural, ecologia e evolução de vertebrados brasileiros
• Beneficiário: Marcio Roberto Costa Martins
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 06/58011-4 - Conservacao de anfibios e repteis neotropicais: aspectos ecologicos e evolutivos.
• Beneficiário: Marcio Roberto Costa Martins
• Modalidade de apoio: Auxílio à Pesquisa - Regular