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The fate of Meconopsis species in the Tibeto‐Himalayan region under future climate change
Authors:Wen&#x;Ting Wang  Wen&#x;Yong Guo  Scott Jarvie  Jens&#x;Christian Svenning
Institution:1. School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou China ; 2. Key Laboratory of China''s Ethnic Languages and Information Technology of Ministry of Education, Northwest Minzu University, Lanzhou China ; 3. Department of Biology, Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Aarhus University, Aarhus C Denmark ; 4. Department of Biology, Section for Ecoinformatics & Biodiversity, Aarhus University, Aarhus C Denmark
Abstract:High‐mountain areas such as the Tibeto‐Himalayan region (THR) host cold‐adapted biota expected to be sensitive to anthropogenic climate change. Meconopsis is a representative endangered genus confined to alpine meadow or subnival habitats in the THR. We used climate‐niche factor analysis to study the vulnerability of ten Meconopsis species to climate change, comparing current climate (representative of 1960–1990) to future climate scenarios (2070: average 2061–2080). For these ten Meconopsis species, we then identified potential future climate refugia and determined optimal routes for each species to disperse to the proposed refugia. Our results indicate that for the ten Meconopsis species, the regions with low vulnerability to climate change in the THR are the central Qinghai‐Tibet Plateau, the Hengduan Mountains (HDM), the eastern Himalayas, and the West Qinling Mountain (WQL), and can be considered potential future climate refugia. Under future climate change, we found for the ten Meconopsis species potential dispersal routes to three of the four identified refugia: the HDM, the eastern Himalayas, and the WQL. Our results suggest that past refugia on the THR will also be the future climate refugia for the ten Meconopsis species, and these species may potentially persist in multiple future climate refugia, likely reducing risks from climate change. Furthermore, climate change may affect the threat ranking of Red Listed Species for Meconopsis species, as Least Concern species were estimated to become more vulnerable to climate change than the only Near Threatened species.
Keywords:alpine plants  climate change  climate refugia  dispersal routes  species’  vulnerability
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