Age structure of a spadefoot toad Pelobates fuscus (Pelobatidae) population
Résumé
Age structure of a Pelobates fuscus population portion, which visits ponds during the 1996 breeding period, was studied using skeletochronological methods. The studied population lives in northeast France, in the western border of the species area. The age distributions were strongly different between the sexes: males were represented mainly by the two- and three-year-old individuals, when females were older. A lack of three-year-old migrating females was observed and discussed.