The effect of landscape heterogeneity on the spread of water vole outbreaks
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | The effect of landscape heterogeneity on the spread of water vole outbreaks |
| Type de publication | Journal Article |
| Year of Publication | 2014 |
| Auteurs | Berthier K., Foltete J.-C, Giraudoux P. |
| Journal | FOURRAGES |
| Pagination | 319-326 |
| Date Published | DEC |
| Type of Article | Article |
| ISSN | 0429-2766 |
| Mots-clés | Arvicola terrestris, Auvergne, damage, depredator, Doubs, forage system, Franche-Comte, grassland, integrated control, inter-annual variations, Jura, landscape, medium highland, Modelling, permanent pasture, spatial distribution, spatial heterogeneity, water vole |
| Résumé | In cyclic populations, fluctuations in abundance may be spatially asynchronous. This asynchrony can lead to the emergence of complex patterns, such as travelling waves. At present, landscape heterogeneity (driven by factors such as habitat quality and physical dispersal limitations) is often considered to be instrumental in generating travelling waves. In this study, 15 years of town-level abundance data obtained from cyclic water vole populations in the Jura mountain range in France (Doubs Department) were analysed. The results of this analysis suggest the presence of a wave that is moving at a speed of 7.4 km/year and at a perpendicular angle to one of the major physical obstacles to vole dispersal. At the local scale, the wave's propagation is slowed by the presence of habitat that is unfavourable to water voles, such hedgerow networks and forested areas. |