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Retreating or Standing: Responses of Forest Species and Steppe Species to Climate Change in Arid Eastern Central Asia

Zhang, Hong-Xiang ; Zhang, Ming-Li ; Sanderson, Stewart C ; Caramelli, David Caramelli, David

PloS one, 2013-04, Vol.8 (4), p.e61954 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Retreating or Standing: Responses of Forest Species and Steppe Species to Climate Change in Arid Eastern Central Asia
Autor: Zhang, Hong-Xiang ; Zhang, Ming-Li ; Sanderson, Stewart C ; Caramelli, David
Caramelli, David
Assuntos: Analysis ; Arid climates ; Arid zones ; Aridity ; Asia, Central ; Biodiversity ; Biogeography ; Biology ; chloroplast DNA ; Chloroplasts ; Clematis ; Clematis sibirica ; Climate Change ; Climatic conditions ; climatic factors ; Coniferous forests ; Contraction ; Demographics ; DNA, Intergenic ; DNA, Plant ; Earth Sciences ; Ecology ; Ecosystem ; Evolution ; Evolution, Molecular ; Far East ; Flowers & plants ; Forests ; Future climates ; Genetic diversity ; Genetic Variation ; Genomes ; Geography ; Global temperature changes ; habitats ; Interglacial periods ; Laboratories ; Last Glacial Maximum ; Molecular Sequence Data ; Montane environments ; Mountain forests ; Phylogeny ; Phylogeography ; Plant species ; Pleistocene ; Population genetics ; Precipitation (Meteorology) ; Precipitation variability ; Rainfall ; Science ; Species ; Steppes ; temperature ; Trees
É parte de: PloS one, 2013-04, Vol.8 (4), p.e61954
Notas: http://dx.doi.org/10.1371/journal.pone.0061954
Competing Interests: The authors have declared that no competing interests exist.
Conceived and designed the experiments: H-XZ M-LZ. Performed the experiments: H-XZ. Analyzed the data: H-XZ M-LZ. Contributed reagents/materials/analysis tools: H-XZ M-LZ. Wrote the paper: H-XZ M-LZ SS.
Descrição: The temperature in arid Eastern Central Asia is projected to increase in the future, accompanied by increased variability of precipitation. To investigate the impacts of climate change on plant species in this area, we selected two widespread species as candidates, Clematis sibirica and C. songorica, from montane coniferous forest and arid steppe habitats respectively. We employed a combined approach of molecular phylogeography and species distribution modelling (SDM) to predict the future responses of these two species to climate change, utilizing evidence of responses from the past. Genetic data for C. sibirica shows a significant phylogeographical signal (N ST > F ST , P <0.05) and demographic contraction during the glacial-interglacial cycles in the Pleistocene. This forest species would likely experience range reduction, though without genetic loss, in the face of future climate change. In contrast, SDMs predict that C. songorica , a steppe species, should maintain a consistently stable potential distribution under the Last Glacial Maximum (LGM) and the future climatic conditions referring to its existing potential distribution. Molecular results indicate that the presence of significant phylogeographical signal in this steppe species is rejected and this species contains a high level of genetic differentiation among populations in cpDNA, likely benefiting from stable habitats over a lengthy time period. Evidence from the molecular phylogeography of these two species, the forest species is more sensitive to past climate changes than the steppe species. SDMs predict that the forest species will face the challenge of potential range contraction in the future more than the steppe species. This provides a perspective on ecological management in arid Eastern Central Asia, indicating that increased attention should be paid to montane forest species, due to their high sensitivity to disturbance.
Editor: United States: Public Library of Science
Idioma: Inglês

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Retreating or Standing: Responses of Forest Species and Steppe Species to Climate Change in Arid Eastern Central Asia

Zhang, Hong-Xiang ; Zhang, Ming-Li ; Sanderson, Stewart C ; Caramelli, David Caramelli, David

United States: Public Library of Science

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