Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Comparative ecology of three species of Thamnodynastes (Serpentes, Dipsadidae) in subtropical-temperate South America

Bellini, Gisela PaolaIcon ; Giraudo, Alejandro RaulIcon ; Arzamendia, VanesaIcon
Fecha de publicación: 04/2014
Editorial: British Herpetological Society
Revista: Herpetological Journal
ISSN: 0268-0130
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Two hypotheses have been proposed to explain the differences among species within present-day communities: the competition-predation hypothesis (CPH) and the deep history hypothesis (DHH). However, the lack of information about the ecology of many species hinders clarification of the role of these different, though not mutually exclusive, hypotheses. We compared ecological data of three species of snakes (genus Thamnodynastes) in their subtropical-temperate geographical distributions, evaluating the reproductive biology, sexual dimorphism, feeding ecology and habitat use of T. hypoconia and T. strigatus, and providing the first ecological data of T. chaquensis. Females attained sexual maturity at larger sizes than males. Unusually for viviparous snakes, males and females had similar body sizes although males had more ventral scales than females. The reproductive cycle of females was seasonal (not annual), with parturition occurring in summer. Males of T. chaquensis and T. strigatus were characterised by continuous reproductive cycles, while males of T. hypoconia showed differences between seasons. All three species mainly fed on amphibians. Thamnodynastes strigatus also fed on fishes, lizards and mammals, T. hypoconia occasionally fed on lizards, while T. chaquensis was an amphibian specialist. Thamnodynastes hypoconia lived in lentic aquatic habitats, T. strigatus was the most aquatic species, and T. chaquensis was the most terrestrial species. We propose that most of the ecological traits examined are phylogenetically conservative within the Tachymenini, supporting the DHH.
Palabras clave: Competition-Predation Hypothesis , Deep History Hypothesis , Reproduction Ecology , Feeding Ecology , Niche Overlap , Tachymenini , Habitat Use
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 1.381Mb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/31676
URL: https://www.thebhs.org/publications/the-herpetological-journal/volume-24-number-
Colecciones
Articulos(INALI)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Citación
Arzamendia, Vanesa; Giraudo, Alejandro Raul; Bellini, Gisela Paola; Comparative ecology of three species of Thamnodynastes (Serpentes, Dipsadidae) in subtropical-temperate South America; British Herpetological Society; Herpetological Journal; 24; 2; 4-2014; 87-96
Compartir

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES