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Heterogeneous responses of temperate-zone amphibian populations to climate change complicates conservation planning


Muths, E; Chambert, T; Schmidt, B R; Miller, D A W; Hossack, B R; Joly, P; Grolet, O; Green, D M; Pilliod, D S; Cheylan, M; Fisher, R N; McCaffery, R M; Adams, M J; Palen, W J; Arntzen, J W; Garwood, J; Fellers, G; Thirion, J-M; Besnard, A; Grant, E H Campbell (2017). Heterogeneous responses of temperate-zone amphibian populations to climate change complicates conservation planning. Scientific Reports, 7(1):17102.

Abstract

The pervasive and unabated nature of global amphibian declines suggests common demographic responses to a given driver, and quantification of major drivers and responses could inform broad-scale conservation actions. We explored the influence of climate on demographic parameters (i.e., changes in the probabilities of survival and recruitment) using 31 datasets from temperate zone amphibian populations (North America and Europe) with more than a decade of observations each. There was evidence for an influence of climate on population demographic rates, but the direction and magnitude of responses to climate drivers was highly variable among taxa and among populations within taxa. These results reveal that climate drivers interact with variation in life-history traits and population-specific attributes resulting in a diversity of responses. This heterogeneity complicates the identification of conservation ‘rules of thumb’ for these taxa, and supports the notion of local focus as the most effective approach to overcome global-scale conservation challenges.

Abstract

The pervasive and unabated nature of global amphibian declines suggests common demographic responses to a given driver, and quantification of major drivers and responses could inform broad-scale conservation actions. We explored the influence of climate on demographic parameters (i.e., changes in the probabilities of survival and recruitment) using 31 datasets from temperate zone amphibian populations (North America and Europe) with more than a decade of observations each. There was evidence for an influence of climate on population demographic rates, but the direction and magnitude of responses to climate drivers was highly variable among taxa and among populations within taxa. These results reveal that climate drivers interact with variation in life-history traits and population-specific attributes resulting in a diversity of responses. This heterogeneity complicates the identification of conservation ‘rules of thumb’ for these taxa, and supports the notion of local focus as the most effective approach to overcome global-scale conservation challenges.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Uncontrolled Keywords:amphibian, demography, survival, recruitment, climate, mark-recapture
Language:English
Date:6 December 2017
Deposited On:28 Dec 2017 14:52
Last Modified:19 Feb 2018 09:47
Publisher:Nature Publishing Group
ISSN:2045-2322
OA Status:Gold
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1038/s41598-017-17105-7
PubMed ID:29213103

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