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

Authors: Erin Muths; Thierry C Chambert; Benedikt R Schmidt; David AW Miller; Blake R Hossack; Pierre Joly; O Grolet; D E Green; David S Pilliod; Marc Cheylan; Robert N Fisher; Rebecca M McCaffery; Michael J Adams; W J Palen; Jan W Arntzen; Justin Garwood; Gary M Fellers; Jean-Marc Thirion; Aurélien Besnard; Evan HC Grant
Contribution Number: 627



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.

Publication details
Published Date: 2017-12
Outlet/Publisher: Scientific Reports. DOI:10.1038/s41598-017-17105-7
Media Format: .PDF

ARMI Organizational Units:
Rocky Mountains, Southern - Biology
Climate Change; Monitoring and Population Ecology; Species and their Ecology
Place Names:
Canada; Europe; United States
amphibians; conservation; demographics; disease; ecology; mark-recapture; population; research; stressors
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