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Dispersal response to climate change: scaling down to intraspecific variation

Ecology letters, 2015-11, Vol.18 (11), p.1226-1233 [Peer Reviewed Journal]

2015 John Wiley & Sons Ltd/CNRS ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1461-023X ;EISSN: 1461-0248 ;DOI: 10.1111/ele.12502

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Title:
Dispersal response to climate change: scaling down to intraspecific variation
Author: Bestion, Elvire ; Clobert, Jean ; Cote, Julien ; Gaillard, Jean‐Michel
Gaillard, Jean-Michel ; Gaillard, Jean‐Michel
Subjects: Bioclimatology ; Biogeography ; climate ; Climate change ; condition-dependent dispersal ; Dispersal ; dispersal syndrome ; Ecology, environment ; Environmental Sciences ; Global warming ; habitats ; interindividual variation ; intraspecific variation ; Life Sciences ; non-random dispersal ; phenotype ; preferred temperature ; reptiles ; survival rate ; temperature ; thermal biology ; Zootoca vivipara
Is Part Of: Ecology letters, 2015-11, Vol.18 (11), p.1226-1233
Description: Range shift, a widespread response to climate change, will depend on species abilities to withstand warmer climates. However, these abilities may vary within species and such intraspecific variation can strongly impact species responses to climate change. Facing warmer climates, individuals should disperse according to their thermal optimum with consequences for species range shifts. Here, we studied individual dispersal of a reptile in response to climate warming and preferred temperature using a semi‐natural warming experiment. Individuals with low preferred temperatures dispersed more from warmer semi‐natural habitats, whereas individuals with higher preferred temperatures dispersed more from cooler habitats. These dispersal decisions partly matched phenotype‐dependent survival rates in the different thermal habitats, suggesting adaptive dispersal decisions. This process should result into a spatial segregation of thermal phenotypes along species moving ranges which should facilitate local adaptation to warming climates. We therefore call for range shift models including intraspecific variation in thermal phenotype and dispersal decision.
Publisher: Paris: Blackwell Science
Language: English
Identifier: ISSN: 1461-023X
EISSN: 1461-0248
DOI: 10.1111/ele.12502
Source: Hyper Article en Ligne (HAL) (Open Access)
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Dispersal response to climate change: scaling down to intraspecific variation

2015 John Wiley & Sons Ltd/CNRS ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1461-023X ;EISSN: 1461-0248 ;DOI: 10.1111/ele.12502

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