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Article Dans Une Revue Landscape Ecology Année : 2017

Conservation planning with spatially explicit models: a case for horseshoe bats in complex mountain landscapes

Résumé

Context: Context Bats are considered as an ecological indicator of habitat quality due to their sensitivity to human-induced ecosystem changes. Hence, we will focus the study on two indicator species of bats as a proxy to evaluate structure and composition of the landscape to analyze anthropic pressures driving changes in patterns. Objectives: This study develops a spatially-explicit model to highlight key habitat nodes and corridors which are integral for maintaining functional landscape connectivity for bat movement. We focus on a complex mountain landscape and two bat species: greater (Rhinolophus ferrumequinum) and lesser (Rhinolophus hipposideros) horseshoe bats which are known to be sensitive to landscape composition and configuration. Methods: Species distribution models are used to delineate high-quality foraging habitat for each species using opportunistic ultrasonic bat data. We then performed connectivity analysis combining (modelled) suitable foraging habitat and (known) roost sites. We use graph-theory and the deviation in the probability of connectivity to quantify resilience of the landscape connectivity to perturbations. Results: Both species were confined to lowlands (

Dates et versions

hal-02606436 , version 1 (16-05-2020)

Identifiants

Citer

M. Le Roux, M. Redon, Frédéric Archaux, J. Long, S. Vincent, et al.. Conservation planning with spatially explicit models: a case for horseshoe bats in complex mountain landscapes. Landscape Ecology, 2017, 32 (5), pp.1005-1021. ⟨10.1007/s10980-017-0505-z⟩. ⟨hal-02606436⟩
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