Interrupció del creixement en la hibernació del gripau corredor (Epidelea calamita) en zones semiàrides

Authors

  • Delfí Sanuy i Castells
  • Neus Oromí
  • Ricard Blanco
  • Ulrich Sinsch

Abstract

The biology of amphibian populations in semiarid zones that suffer environmental stress can be revealed through skeletochronological studies. These studies aim to determine the age of natterjack toads from the lines of arrested growth (LAG) that can be observed in the phalanges. There is a correspondence between the number of LAGs and the number of hibernation so that in principle one LAG means one year of life. In the analysis of the phalanges we found a group of multiples lines, which we considered to be the result of a hibernation interrupted by short phases of growth during warmer periods in winter and also to some extent by the occasional precipitation. The results obtained suggest a pattern of growth in amphibian populations in semi-arid zones that is different from any found in amphibian in temperate zones.

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Published

2007-08-28

Issue

Vol. 73 : 2005

Section

Sistemes i Processos

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