Are amphibians tracking their climatic niches in response to climate warming? A test with Iberian amphibians

Urtzi Enriquez-Urzelai, Nicola Bernardo, Gregorio Moreno-Rueda (), Albert Montori and Gustavo Llorente
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Urtzi Enriquez-Urzelai: Universidad de Oviedo UO
Nicola Bernardo: Estación Biológica de Doñana-CSIC
Gregorio Moreno-Rueda: Universidad de Granada
Albert Montori: Universitat de Barcelona
Gustavo Llorente: Universitat de Barcelona

Climatic Change, 2019, vol. 154, issue 1, No 18, 289-301

Abstract: Abstract Current climate warming has already contributed to local extinctions. Amphibians are one of the most sensitive animal groups to climate change, currently undergoing a global decline. Predictive models for Europe and Iberian Peninsula forecast that the future impact of climate change on amphibians will depend on their capacity to alter their distributions by tracking climate warming. In the present study, we explore the responses of Iberian amphibian species to recent climate change, by comparing amphibian distributions between two time periods (1901–1990 vs. 2000–2015). Our findings suggest that, although climatic conditions have changed between the two periods, Iberian amphibians have barely shifted their distribution ranges northwards, with the exception of the southernmost species (Alytes dickhilleni). However, most Iberian amphibians appear to have moved their elevational limits upwards in mountains. Approximately half of the species showed different occupied niches between the two time periods, suggesting that many Iberian amphibians have not been able to reach all the new location with optimal climatic conditions for them. Furthermore, disappearing cold climatic conditions (e.g. those found at mountain tops) limit the potential distribution of cold-adapted species, including European widespread species with their southern margin in the Iberian Peninsula, and endemic species. The combination of a limited ability to shift their ranges and profound climatic changes could pose a challenge to the long-term persistence of Iberian amphibian populations.

Keywords: Amphibians; Distribution ranges; Ecological niche; Iberian Peninsula (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s10584-019-02422-9

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