Article (Scientific journals)
Fire salamander (Salamandra salamandra) in Larzac plateau: low occurrence, pond-breeding and cohabitation of larvae with paedomorphic palmate newts (Lissotriton helveticus)
Denoël, Mathieu; Winandy, Laurane
2014In Acta Herpetologica, 9 (1), p. 43-49
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This paper is published by Firenze Press for the Societas Herpetologica Italica (http://fupress.net/index.php/ah/article/view/13541)


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Keywords :
Pond breeding; Coexistence; Cohabitation; Fire salamander; Salamandra salamandra; Palmate newt; Lissotriton helveticus; Pond; Larzac
Abstract :
[en] Alternative reproductive strategies are widespread in caudate amphibians. Among them, fire salamanders (Salamandra salamandra) usually rely on streams to give birth to aquatic larvae but also use ponds, whereas palmate newt larvae (Lissotriton helveticus) typically metamorphose into terrestrial juveniles, but can also reproduce in retaining their gills, a process known as paedomorphosis. Here we report repeated observations of an unusual case of coexistence of these two alternative traits in the same pond (Larzac, France). The prevalence of fire salamanders in Southern Larzac was very low (pond occupancy: 0.36%). The observed abundance of fire salamander larvae and paedomorphic newts was also low in the studied pond. On one hand, the rarity of this coexistence pattern may suggest that habitat characteristics may not be optimal or that competition or predation processes might be operating. However, these hypotheses remain to be tested. On the other hand, as this is the only known case of breeding in Southern Larzac, it could be considered to be at a high risk of extirpation.
Research Center/Unit :
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Disciplines :
Environmental sciences & ecology
Aquatic sciences & oceanology
Author, co-author :
Denoël, Mathieu  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale
Winandy, Laurane ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale
Language :
English
Title :
Fire salamander (Salamandra salamandra) in Larzac plateau: low occurrence, pond-breeding and cohabitation of larvae with paedomorphic palmate newts (Lissotriton helveticus)
Publication date :
June 2014
Journal title :
Acta Herpetologica
ISSN :
1827-9635
eISSN :
1827-9643
Publisher :
Firenze University Press, Italy
Volume :
9
Issue :
1
Pages :
43-49
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
ULg FSR - Université de Liège. Fonds spéciaux pour la recherche
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since 04 July 2014

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