Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest

Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high levels of species richness and endemism. A possible explanation for these characteristics is that such forests have been less affected by drastic glacial impacts than other biomes. Using two approaches,...

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Main Authors: Camps, Gonzalo Andres, Martinez Meyer, Enrique, Verga, Anibal, Sérsic, Alicia, Cosacov, Andrea
Format: Artículo
Language:Inglés
Published: Oxford University Press 2025
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/22226
https://academic.oup.com/biolinnean/article-abstract/125/2/401/5076142
https://doi.org/10.1093/biolinnean/bly115
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author Camps, Gonzalo Andres
Martinez Meyer, Enrique
Verga, Anibal
Sérsic, Alicia
Cosacov, Andrea
author_browse Camps, Gonzalo Andres
Cosacov, Andrea
Martinez Meyer, Enrique
Sérsic, Alicia
Verga, Anibal
author_facet Camps, Gonzalo Andres
Martinez Meyer, Enrique
Verga, Anibal
Sérsic, Alicia
Cosacov, Andrea
author_sort Camps, Gonzalo Andres
collection INTA Digital
description Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high levels of species richness and endemism. A possible explanation for these characteristics is that such forests have been less affected by drastic glacial impacts than other biomes. Using two approaches, geo-statistical phylogeography, based on two chloroplast markers, and multi-algorithm-based niche modelling, for the present and for the past, we explored if, during glacial periods, the geographical range of Bulnesia sarmientoi was stable or underwent expansions or retractions in space and time and if there is a relationship among past climatic refugia, the current climatic optimum and genetic diversity. We estimated that B. sarmientoi would have diverged from other Bulnesia at the beginning of the Pliocene (5 Mya), with diversification of the current lineages occurring in the Pleistocene (1.4–1.1 Mya). Our results suggest that Dry Forests underwent population expansion events during the glacial periods, whereas they would have undergone population stasis during interglacial periods. Furthermore, we identified a putative refugial area in the Dry Chaco that has been climatically stable through time, consistent with the area of highest genetic diversity and with the spatial location of the climatic optimum of the focal species.
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spelling INTA222262025-05-12T10:06:06Z Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest Camps, Gonzalo Andres Martinez Meyer, Enrique Verga, Anibal Sérsic, Alicia Cosacov, Andrea Ambiente Bosque Biodiversidad Environment Forest Biodiversity Neotropical dry forests Dry Chaco Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high levels of species richness and endemism. A possible explanation for these characteristics is that such forests have been less affected by drastic glacial impacts than other biomes. Using two approaches, geo-statistical phylogeography, based on two chloroplast markers, and multi-algorithm-based niche modelling, for the present and for the past, we explored if, during glacial periods, the geographical range of Bulnesia sarmientoi was stable or underwent expansions or retractions in space and time and if there is a relationship among past climatic refugia, the current climatic optimum and genetic diversity. We estimated that B. sarmientoi would have diverged from other Bulnesia at the beginning of the Pliocene (5 Mya), with diversification of the current lineages occurring in the Pleistocene (1.4–1.1 Mya). Our results suggest that Dry Forests underwent population expansion events during the glacial periods, whereas they would have undergone population stasis during interglacial periods. Furthermore, we identified a putative refugial area in the Dry Chaco that has been climatically stable through time, consistent with the area of highest genetic diversity and with the spatial location of the climatic optimum of the focal species. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Camps, Gonzalo Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Camps, Gonzalo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Camps, Gonzalo Andres. Universidad Nacional de Córdoba (UNC). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Martinez Meyer, Enrique. Universidad Nacional Autónoma de México. Departamento de Zoología. Instituto de Biología; México Fil: Martinez Meyer, Enrique. Centro del Cambio Global y la Sustentabilidad (CCGS); México Fil: Verga, Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Sérsic, Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Sérsic, Alicia. Universidad Nacional de Córdoba (UNC). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Cosacov, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina Fil: Cosacov, Andrea. Universidad Nacional de Córdoba (UNC). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Laboratorio de Ecología Evolutiva - Biología Floral; Argentina 2025-05-09T16:22:03Z 2025-05-09T16:22:03Z 2018-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22226 https://academic.oup.com/biolinnean/article-abstract/125/2/401/5076142 1095-8312 0024-4066 https://doi.org/10.1093/biolinnean/bly115 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Oxford University Press Biological Journal of the Linnean Society 125: 401–420 (2018)
spellingShingle Ambiente
Bosque
Biodiversidad
Environment
Forest
Biodiversity
Neotropical dry forests
Dry Chaco
Camps, Gonzalo Andres
Martinez Meyer, Enrique
Verga, Anibal
Sérsic, Alicia
Cosacov, Andrea
Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title_full Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title_fullStr Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title_full_unstemmed Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title_short Genetic and climatic approaches reveal effects of Pleistocene refugia and climatic stability in an old giant of the Neotropical Dry Forest
title_sort genetic and climatic approaches reveal effects of pleistocene refugia and climatic stability in an old giant of the neotropical dry forest
topic Ambiente
Bosque
Biodiversidad
Environment
Forest
Biodiversity
Neotropical dry forests
Dry Chaco
url http://hdl.handle.net/20.500.12123/22226
https://academic.oup.com/biolinnean/article-abstract/125/2/401/5076142
https://doi.org/10.1093/biolinnean/bly115
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