Reference : Landscape-level thresholds and newt conservation
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Life sciences : Agriculture & agronomy
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/3142
Landscape-level thresholds and newt conservation
English
Denoël, Mathieu mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
Ficetola, G. Francesco [Université de Savoie > > > > > >]
2007
Ecological Applications
Ecological Soc Amer
17
1
302-309
Yes (verified by ORBi)
International
1051-0761
Washington
[en] breaking points ; ecological thresholds ; isolation ; management goals ; species richness ; Triturus ; landscape ecology ; environment ; habitat ; conservation ; biodiversity ; ecological modelling ; Mesotriton alpestris ; Lissotriton helveticus ; Lissotriton vulgaris ; Ichthyosaura alpestris ; Amphibian ; Forest cover
[fr] Pays de Herve ; Bassin de la Vesdre ; Belgique
[en] ecology ; buffer ; habitat configuration ; habitat composition ; umbrela species ; piecewise regression ; Belgium
[en] Ecological thresholds are defined as points or zones at which a rapid change occurs from one ecological condition to another. The existence of thresholds in species - habitat relationships has important implications for management, but the lack of concordance across studies and the wide range of methods used make generalizations difficult. We used two different statistical methods to test for the existence of thresholds for both individual species and the whole community, using three newt species as models. Based on a sample of 371 ponds, we found significant thresholds for both landscape configuration and composition. These were for the relationships between distance to forest and occurrence of Triturus alpestris and T. helveticus, and forest and crop cover and T. helveticus. Variability in the location of thresholds observed for the different species in this study caution against their use at the community level. Future studies should be based on the identification and assessment of thresholds for targeted species. Thresholds can be a useful concept from which tools may be developed to focus conservation effort for threatened species and their habitats.
Région wallonne : Direction générale des Ressources naturelles et de l'Environnement - DGRNE ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/3142
10.1890/1051-0761(2007)017[0302:LTANC]2.0.CO;2
This is a publication of the Ecological society of America: http://www.esa.org/

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