Assessing connectivity in fragmented landscape : from behavioural ecology to biological conservation

In fragmented landscapes, movements between habitat patches play a crucial role in population persistence by allowing gene flow, rescue effect possibilities, linking different habitats for reproduction or resources acquisition, … Although the importance of these movements, the landscape structure between patches (i.e. matrix) is too frequently considered as a homogeneous non-habitat of minor interest and behavioural adaptations in response to fragmentation are rarely taken into account. To investigate the importance of the landscape influence on movements, three complementary approaches are used: 1) experimental studies are performed to assess behavioural and physiological responses of common toads when they are confronted to different land uses. Land uses are thus characterised par the cost of their crossing for the focus species. 2) This work also aims to decipher the rules of movement in heterogeneous landscapes and to highlight behavioural differences according to the originated landscape (adaptations). 3) On the basis of modelling, the third part of this work intends to make predictions at the landscape scale

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Source https://theses.hal.science/tel-00937294
Author Janin, Agnès
Maintainer CCSD
Last Updated May 7, 2026, 05:46 (UTC)
Created May 7, 2026, 05:46 (UTC)
Identifier NNT: 2011LYO10009
Language fr
Rights https://about.hal.science/hal-authorisation-v1/
contributor Laboratoire d'Ecologie des Hydrosystèmes Fluviaux (EHF) ; Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
creator Janin, Agnès
date 2011-01-07T00:00:00
harvest_object_id 4810fa56-ccb7-4d37-824d-b2abfe6a4fc2
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-03-31T00:00:00
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