Climatic microrefugia under anthropogenic climate change: implications for species redistribution

• Published in: Ecography
• Main Authors: Lenoir, Jonathan, Roger Michel Henri, Hattab, Tarek, Pierre, Guillaume
• Other Authors: Ecologie et Dynamique des Systèmes Anthropisés - UMR CNRS 7058 (EDYSAN), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Groupe d'Étude sur les Géomatériaux et Environnements Naturels, Anthropiques et Archéologiques - EA 3795 (GEGENAA), Université de Reims Champagne-Ardenne (URCA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-Maison des Sciences Humaines de Champagne-Ardenne (MSH-URCA), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA), Université de Reims Champagne-Ardenne (URCA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2016
• Subjects: [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology; Hannah; Bertrand; Lister; Svenning; Ice Sheet
• Online Access: https://hal.science/hal-03276591; https://hal.science/hal-03276591/document; https://hal.science/hal-03276591/file/Ecography%202017.pdf; https://doi.org/10.1111/ecog.02788

International audience Svenning 2015, Bertrand et al. 2016). For instance, living organisms may find long-term enclaves/shelters, where specific and relatively stable climatic conditions are buffered and thus decoupled from regional climate change, to persist locally as climate relicts (Hampe and Jump 2011). Such peculiar microclimates that support isolated populations of organisms over long time periods (several generations) outside their main distribution area refer to climatic microrefugia (sensu Rull 2009, Dobrowski 2011, Hannah et al. 2014, Hylander et al. 2015) and are thus particularly relevant to explain disequilibrium dynamics under climate change. Microrefugia (plural) and microrefugium (singular) are terms initially coined by paleoecologists (Leal 2001, Rull 2009) to designate one or several small area(s) sheltered from broader-scale environmental instabilities over time, in which small populations of organisms can survive outside their main distribution area (i.e. the macrorefugium). Famous examples are the remote or distal microrefugia (Rull 2009, 2010)-also known as cryptic refugia when specifically referring to the contraction phase of a species' expansion-contraction cycle (Stewart and Lister 2001, Stewart et al. 2010)-located close to the Scandinavian ice sheet and very far from macrorefugium located in southern