Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests
We investigated the impact of past changes in habitat suitability on the current patterns of genetic diversity of two southern beeches (Nothofagus nervosa and Nothofagus obliqua) in their eastern fragmented range in Patagonian Argentina, and model likely future threats to their population genetic s...
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| Format: | Artículo |
| Language: | Inglés |
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2018
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| Online Access: | http://hdl.handle.net/20.500.12123/1923 https://link.springer.com/article/10.1007/s11295-017-1201-5 http://ri.conicet.gov.ar/handle/11336/32840 https://doi.org/10.1007/s11295-017-1201-5 |
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| author | Marchelli, Paula Thomas, Evert Azpilicueta, Maria Marta Zonneveld, Maarten van Gallo, Leonardo Ariel |
| author_browse | Azpilicueta, Maria Marta Gallo, Leonardo Ariel Marchelli, Paula Thomas, Evert Zonneveld, Maarten van |
| author_facet | Marchelli, Paula Thomas, Evert Azpilicueta, Maria Marta Zonneveld, Maarten van Gallo, Leonardo Ariel |
| author_sort | Marchelli, Paula |
| collection | INTA Digital |
| description | We investigated the impact of past changes in habitat suitability on the current patterns of genetic diversity of two southern beeches (Nothofagus nervosa and Nothofagus obliqua) in their eastern fragmented range in Patagonian Argentina, and model likely future threats to their population
genetic structure. Our goal was to develop a spatially-explicit strategy for guiding conservation and management interventions in light of climate change. We combined suitability modelling under current, past (Last Glacial Maximum ~ 21,000 BP), and future (2050s) climatic conditions with genetic
characterization data based on chloroplast DNA, isozymes, and microsatellites.We show the complementary usefulness of the distribution of chloroplast haplotypes and locally common allelic richness calculated from microsatellite data for identifying the locations of putative glacial refugia. Our findings suggest that contemporary hotspots of genetic diversity correspond to convergence zones of different expansion routes, most likely as a consequence of admixture processes. Future suitability predictions suggest that climate change
might differentially affect both species. All genetically most diverse populations of N. nervosa and several of N. obliqua are located in areas that may be most severely impacted by climate change, calling for forward-looking conservation interventions.
We propose a practical spatially- explicit strategy
to target conservation interventions distinguishing priority
populations for in situ conservation (hotspots of genetic
diversity likely to remain suitable under climate change),
ex situ conservation in areas where high genetic diversity
overlaps with high likelihood of drastic climate change,
vulnerable populations (areas expected to be negatively affected
by climate change), and potential expansion areas under
climate change. |
| format | Artículo |
| id | INTA1923 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA19232019-03-21T18:30:58Z Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests Marchelli, Paula Thomas, Evert Azpilicueta, Maria Marta Zonneveld, Maarten van Gallo, Leonardo Ariel Cambio Climático Nothofagus Bosques Genética Climate Change Forests Genetics Región Patagónica We investigated the impact of past changes in habitat suitability on the current patterns of genetic diversity of two southern beeches (Nothofagus nervosa and Nothofagus obliqua) in their eastern fragmented range in Patagonian Argentina, and model likely future threats to their population genetic structure. Our goal was to develop a spatially-explicit strategy for guiding conservation and management interventions in light of climate change. We combined suitability modelling under current, past (Last Glacial Maximum ~ 21,000 BP), and future (2050s) climatic conditions with genetic characterization data based on chloroplast DNA, isozymes, and microsatellites.We show the complementary usefulness of the distribution of chloroplast haplotypes and locally common allelic richness calculated from microsatellite data for identifying the locations of putative glacial refugia. Our findings suggest that contemporary hotspots of genetic diversity correspond to convergence zones of different expansion routes, most likely as a consequence of admixture processes. Future suitability predictions suggest that climate change might differentially affect both species. All genetically most diverse populations of N. nervosa and several of N. obliqua are located in areas that may be most severely impacted by climate change, calling for forward-looking conservation interventions. We propose a practical spatially- explicit strategy to target conservation interventions distinguishing priority populations for in situ conservation (hotspots of genetic diversity likely to remain suitable under climate change), ex situ conservation in areas where high genetic diversity overlaps with high likelihood of drastic climate change, vulnerable populations (areas expected to be negatively affected by climate change), and potential expansion areas under climate change. EEA Bariloche Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Thomas, E. Bioversity International; Perú Fil: Azpilicueta, Maria Marta. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina Fil: Zonneveld, Marteen van. Bioversity International; Costa Rica Fil: Gallo, Leonardo Ariel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina 2018-03-01T13:30:57Z 2018-03-01T13:30:57Z 2017 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1923 https://link.springer.com/article/10.1007/s11295-017-1201-5 http://ri.conicet.gov.ar/handle/11336/32840 1614-2942 (Print) 1614-2950 (Online) https://doi.org/10.1007/s11295-017-1201-5 eng info:eu-repo/semantics/restrictedAccess application/pdf Tree genetics & genomes 13 : 119. (December 2017) |
| spellingShingle | Cambio Climático Nothofagus Bosques Genética Climate Change Forests Genetics Región Patagónica Marchelli, Paula Thomas, Evert Azpilicueta, Maria Marta Zonneveld, Maarten van Gallo, Leonardo Ariel Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title | Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title_full | Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title_fullStr | Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title_full_unstemmed | Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title_short | Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests |
| title_sort | integrating genetics and suitability modelling to bolster climate change adaptation planning in patagonian nothofagus forests |
| topic | Cambio Climático Nothofagus Bosques Genética Climate Change Forests Genetics Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/1923 https://link.springer.com/article/10.1007/s11295-017-1201-5 http://ri.conicet.gov.ar/handle/11336/32840 https://doi.org/10.1007/s11295-017-1201-5 |
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