Reference : Conservation of newt guilds in an agricultural landscape of Belgium: the importance o...
Scientific journals : Article
Life sciences : Environmental sciences & ecology
Life sciences : Aquatic sciences & oceanology
Conservation of newt guilds in an agricultural landscape of Belgium: the importance of aquatic and terrestrial habitats
Denoël, Mathieu mailto [Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
Ficetola, G. Francesco [University of Milano-Bicocca > > > > > > >]
Aquatic Conservation
John Wiley & Sons Ltd.
Yes (verified by ORBi)
[en] Landscape ecology ; Environment ; Pond ; Pays de Herve ; Belgium ; Amphibian ; Triturus cristatus ; Lissotriton helveticus ; Lissotriton vulgaris ; Mesotriton alpestris ; Habitat ; Ecological modelling ; Triturus alpestris ; Ichthiosaura alpestris ; Triturus vulgaris ; Triturus helveticus ; Amphibia ; Introduced fish ; Invasive species ; Guild ; Community ; Wetlands ; Management ; Newt ; Amphibian
[fr] Bassin de la Vesdre ; Triton alpestre ; Triton palmé ; Triton crêté ; Triton ponctué
[de] Bergmolch ; Fadenmolch ; Teichmolch ; Kammolch
[en] 1. Amphibians are declining worldwide in response to local and global pressures. Pond-breeding species are particularly vulnerable to environmental change because they rely on two components of the landscape: aquatic and terrestrial habitats. Agricultural practices are changing rapidly at world and local scales. As a consequence, farm ponds and their surrounding terrestrial landscapes will probably be affected. 2. This study investigated the main habitat determinants for the occurrence of four species of newts (genus Triturus) inhabiting the Pays de Herve, a rural area in Belgium. Newt occurrence was determined for 258 ponds and the effect of habitat on distribution determinants was evaluated using generalized linear models. 3. Newts were found in 42% of the ponds. Contrary to expectations, the distribution of newts was not positively associated with a high density of ponds. However, a low occurrence of newts and the low water depth of many ponds suggest a low quality of habitats. Proximity to forest, deep water, and an absence of fish in ponds are factors that significantly favour newts, but terrestrial habitat requirements vary among species. 4. These results indicate the necessity of maintaining both forest and meadow patches in close proximity to ponds inhabited by newts., and of controlling fish introduction in those ponds. These findings stress the importance of conservation and management of terrestrial and aquatic habitats for maintaining amphibian diversity. Copyright (c) 2007 John Wiley & Sons, Ltd.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Région wallonne : Direction générale des Ressources naturelles et de l'Environnement - DGRNE
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