JIMÉNEZ ALFARO GONZÁLEZ, Francisco De Borja, Laura GARCIA-CALVO, Pedro GARCIA and Jose LUIS ACEBES. Anticipating extinctions of glacial relict populations in mountain refugia. Online. Biological Conservation. Elsevier, 2016, vol. 201, September, p. 243-251. ISSN 0006-3207. Available from: https://dx.doi.org/10.1016/j.biocon.2016.07.015. [citováno 2024-04-23]
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Basic information
Original name Anticipating extinctions of glacial relict populations in mountain refugia
Authors JIMÉNEZ ALFARO GONZÁLEZ, Francisco De Borja (724 Spain, guarantor, belonging to the institution), Laura GARCIA-CALVO (724 Spain), Pedro GARCIA (724 Spain) and Jose LUIS ACEBES (724 Spain)
Edition Biological Conservation, Elsevier, 2016, 0006-3207.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 4.022
RIV identification code RIV/00216224:14310/16:00093955
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.biocon.2016.07.015
UT WoS 000384782800027
Keywords in English Clonality; Extinction debt; Genetic drift; Paleoclimate; Refugia; Relict populations
Tags AKR, rivok
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 22/3/2017 10:41.
Abstract
Glacial relict populations at the rear-edge of species' distributions are expected to respond dramatically to climate warming, yet very few studies have compared their conservation status in current refugia. Here we combine population genetics with species distribution modelling to assess patterns and causes of extinction or persistence in two cold-adapted species, Salty hastata and Juncus balticus, which survived post-glacial retractions in calcareous fens of the Iberian Peninsula. In both species, we detected extremely-low genetic diversity and clonal strategies in red-listed populations of the most Marginal region (Cantabrian Range), but high genetic diversity linked with sexual reproduction in populations from a less marginal region of the rear edge (Pyrenees). Genetic patterns were partially explained by past and present species climatic niches, more remarkably in the arctic-alpine S. hastata than in the boreo-atlantic J. balticus, suggesting different biogeographic history but similar sensitivity to global change. Our results show different magnitudes of extinction debt in regional populations that have survived in mountain refugia since the Last Glacial Maximum. Functional extinction of the most marginal populations can be explained by postglacial climate change and the historical decline of mire habitats. In contrast with the current trend of predicting future effects of climate change, we highlight that glacial relict populations might be currently going into extinction in climatically marginal regions. These populations can provide valuable information about the processes involved in species extinctions, improving our capacity to anticipate the effect of global change across regions and habitats. (C) 2016 Elsevier Ltd. All rights reserved.
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EE2.3.30.0037, research and development projectName: Zaměstnáním nejlepších mladých vědců k rozvoji mezinárodní spolupráce
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