0000000000792558

AUTHOR

Régis Defaut

showing 3 related works from this author

Estimation of water vole abundance by using surface indices

1995

A method to estimate the abundance of the fossorial form of the water vole Arvicola terrestris scherman (Shaw, 1801) has been developed, by using surface indicies. Results are compared to the standard method of estimation using trap lines.

0106 biological sciences0303 health sciencesbiologyEcology[SDV.BA]Life Sciences [q-bio]/Animal biologyFossorialbiology.organism_classification010603 evolutionary biology01 natural sciences03 medical and health sciencesAbundance (ecology)Environmental scienceAnimal Science and ZoologyVoleWater voleArvicola terrestrisCAMPAGNOL TERRESTREEcology Evolution Behavior and SystematicsComputingMilieux_MISCELLANEOUS030304 developmental biology
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Population dynamics of fossorial water vole (Arvicola terrestris scherman): a land use and landscape perspective

1997

Abstract This study investigates the effect of land use, and landscape composition and structure on the population dynamics of fossorial water vole (Arvicola terrestris scherman Shaw). Water vole populations were monitored from 1989 to 1994 in the Doubs department, France, by using index methods. Land use patterns were studied based on agriculture and forestry data from the French Ministry of Agriculture collected in 1956, 1970, 1979 and 1988. Grassland quality and landscape structure were studied based on field transects, combined with the assessment of landscape structure from maps at 1:25,000 scale. Outbreaks of water vole populations occurred as a wave, spreading from epicentres over mo…

education.field_of_studygeography.geographical_feature_categoryEcologybiologyLand useEcologybusiness.industryPopulationFossorialOutbreakbiology.organism_classificationGrasslandGeographyAgricultureAnimal Science and ZoologyWater voleeducationTransectbusinessAgronomy and Crop ScienceAgriculture, Ecosystems & Environment
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Les "vagues voyageuses" du campagnol terrestre en Franche-Comté

2002

Dans les prairies d'altitude, les dégâts provoqués par le campagnol terrestre posent un problème économique et agricole récurrent depuis le début des années 70. Dans la lutte contre cette peste agricole, l'utilisation croissante d'un anticoagulant rodenticide, la bromadiolone, a en plus considérablement augmenté la mortalité de nombreuses espèces animales, notamment de rapaces (légalement protégés), de renards et de sangliers. Dès le début du siècle, les recherches sur les variations de populations de rongeurs ont montré que la densité de certaines espèces de petits mammifères (lemmings, campagnols, etc.) fluctue de manière plus ou moins cyclique.

[SHS.GEO] Humanities and Social Sciences/Geography[SHS.GEO]Humanities and Social Sciences/Geographycampagnol terrestreFranche-Comté[ SHS.GEO ] Humanities and Social Sciences/Geography
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