Search results for "Numerical response"

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Numerical response of predators to large variations of grassland vole abundance and long‐term community changes

2020

Abstract Voles can reach high densities with multiannual population fluctuations of large amplitude, and they are at the base of predator communities in Northern Eurasia and Northern America. This status places them at the heart of management conflicts wherein crop protection and health concerns are often raised against conservation issues. Here, a 20‐year survey describes the effects of large variations in grassland vole populations on the densities and the daily theoretical food intakes (TFI) of vole predators based on roadside counts. Our results show how the predator community responded to prey variations of large amplitude and how it reorganized with the increase in a dominant predator…

0106 biological sciencesNumerical responsemedia_common.quotation_subjectPopulation010603 evolutionary biology01 natural sciencesCompetition (biology)Predation03 medical and health sciencesWildlife managementeducationPredatorQH540-549.5Ecology Evolution Behavior and SystematicsOriginal Research030304 developmental biologyNature and Landscape Conservationmedia_common2. Zero hunger[SDV.EE]Life Sciences [q-bio]/Ecology environment0303 health scienceseducation.field_of_studyEcologybiologyEcology15. Life on landbiology.organism_classificationGeographyVole[SDE.BE]Environmental Sciences/Biodiversity and EcologyIntraguild predation
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Numerical response of predators to large variations of grassland vole abundance, long-term community change and prey switches

2020

AbstractVoles can reach high densities with multi-annual population fluctuations of large amplitude, and they are at the base of large and rich communities of predators in temperate and arctic food webs. This status places them at the heart of management conflicts wherein crop protection and health concerns are often raised against conservation issues. Here, a 20-year survey describes the effects of large variations in grassland vole populations on the densities and the daily theoretical food intakes (TFI) of vole predators based on roadside counts. Our results show how the predator community responds to prey variations of large amplitude and how it reorganized with the increase in a domina…

education.field_of_studygeographygeography.geographical_feature_categorybiologyNumerical responseEcologyPopulationbiology.organism_classificationGrasslandPredationAbundance (ecology)VoleWildlife managementeducationPredator
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