Reference : Similar local and landscape processes affect both a common and a rare newt species
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
Similar local and landscape processes affect both a common and a rare newt species
Denoël, Mathieu mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale >]
Perez, Amélie [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du Comportement > >]
Cornet, Yves mailto [Université de Liège - ULiège > Département de géographie > Unité de Géomatique - Télédétection et photogrammétrie >]
Ficetola, G. Francesco [University of Milano-Bicocca > Department of Environmental Sciences > > >]
Public Library of Science
Yes (verified by ORBi)
San Franscisco
[en] amphibian decline ; commonness ; ecological modelling ; flagship species ; rarity ; umbrella concept ; rare species ; common species ; ecological processes ; biological conservation ; conservation biology ; agricultural landscape ; fish introduction ; pollution ; nitrogeneous compounds ; nitrites ; ammonium ; orthophosphates ; nutrients ; fertilizers ; water quality ; water depth ; macrophyre cover ; vegetation ; connectivity ; past landscape ; historical landscape ; buffer zones ; pond ; wetlands ; Pays de Herve ; Vesdre Basin ; Belgium ; Wallonia ; crested newt ; Triturus cristatus ; smooth newt ; Lissotriton vulgaris ; ecology
[fr] amphibien ; triton crêté ; triton ponctué ; écologie du paysage ; espèce parapluie ; mare
[en] alien species ; introduced species
[en] Although rare species are often the focus of conservation measures, more common species may experience similar decline and suffer from the same threatening processes. We tested this hypothesis by examining, through an information-theoretic approach, the importance of ecological processes at multiple scales in the great crested newt Triturus cristatus, regionally endangered and protected in Europe, and the more common smooth newt, Lissotriton vulgaris. Both species were similarly affected by the same processes, i.e. suitability of aquatic and terrestrial components of their habitat at different scales, connectivity among breeding sites, and the presence of introduced fish. T. cristatus depended more on water depth and aquatic vegetation than L. vulgaris. The results show that environmental pressures threaten both common and rare species, and therefore the more widespread species should not be neglected in conservation programs. Because environmental trends are leading to a deterioration of aquatic and terrestrial habitat features required by newt populations, populations of the common species may follow the fate of the rarest species. This could have substantial conservation implications because of the numerical importance of common species in ecosystems and because commonness could be a transient state moving towards rarity. On the other hand, in agreement with the umbrella species concept, targeting conservation efforts on the most demanding species would also protect part of the populations of the most common species.
F.R.S.-FNRS - Fonds de la Recherche Scientifique ; SPW-DG03 - DGARNE - Service public de Wallonie. Direction Générale Opérationnelle Agriculture, Ressources naturelles et Environnement ; Université de Liège (Fonds spéciaux de la Recherche) ; Contrat de rivière du sous-bassin hydrographique de la Vesdre
Researchers ; Professionals ; Students ; General public
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