Author: Salvidio, Sebastiano

Source: The Herpetological Journal, Volume 18, Number 1, January 2008 , pp. 66-68(3)

Publisher: British Herpetological Society

Abstract:

The adult sex ratio of a population of Speleomantes strinatii living in an underground habitat was studied for 12 consecutive years by temporal removal sampling. Capture probabilities of males (0.72) and females (0.69) were similar and yielded highly reliable sex ratio values. The adult sex ratio, expressed as the proportion of males, was significantly male-biased (mean 0.57, bootstrap 95% confidence intervals 0.53-0.65) and remained relatively constant during the study. A negative relationship was observed between adult sex ratio in one year and the abundance of juveniles in the following one (P=0.02), suggesting that an excess of males limited juvenile recruitment and therefore influenced population dynamics.

Keywords: CAPTURE PROBABILITIES; CAVE HABITAT; PLETHODONTIDAE; POPULATION DYNAMICS; RECRUITMENT

Document Type: Short communication

Publication date: 2008-01-01

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• The Herpetological Journal is an international scientific journal that publishes papers on the natural history of amphibians and reptiles. Experimental, observational and theoretical studies are published along with reviews and book reviews. Faunistic lists, letters and results of general surveys are not published unless they shed light on herpetological problems of wider significance.
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