Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield
How Quaternary climatic and geological disturbances influenced the composition of Neotropical forests is hotly debated. Rainfall and temperature changes during and/or immediately after the last glacial maximum (LGM) are thought to have strongly affected the geographical distribution and local abundance of tree species. The paucity of the fossil records in Neotropical forests prevents a direct reconstruction of such processes. To describe community-level historical trends in forest composition, we turned therefore to inferential methods based on the reconstruction of past demographic changes. In particular, we modelled the history of rainforests in the eastern Guiana Shield over a timescale of several thousand generations, through the application of approximate Bayesian computation and maximum-likelihood methods to diversity data at nuclear and chloroplast loci in eight species or subspecies of rainforest trees. Depending on the species and on the method applied, we detected population contraction, expansion or stability, with a general trend in favour of stability or expansion, with changes presumably having occurred during or after the LGM. These findings suggest that Guiana Shield rainforests have globally persisted, while expanding, through the Quaternary, but that different species have experienced different demographic events, with a trend towards the increase in frequency of light-demanding, disturbance-associated species.
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dig-cirad-fr-5837882024-01-29T00:09:01Z http://agritrop.cirad.fr/583788/ http://agritrop.cirad.fr/583788/ Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield. Barthe Stéphanie, Binelli Giorgio, Hérault Bruno, Scotti-Saintagne Caroline, Sabatier Daniel, Scotti Ivan. 2017. Molecular Ecology, 26 (4) : 1161-1174.https://doi.org/10.1111/mec.13949 <https://doi.org/10.1111/mec.13949> Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield Barthe, Stéphanie Binelli, Giorgio Hérault, Bruno Scotti-Saintagne, Caroline Sabatier, Daniel Scotti, Ivan eng 2017 Molecular Ecology K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 Guyane française France http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 How Quaternary climatic and geological disturbances influenced the composition of Neotropical forests is hotly debated. Rainfall and temperature changes during and/or immediately after the last glacial maximum (LGM) are thought to have strongly affected the geographical distribution and local abundance of tree species. The paucity of the fossil records in Neotropical forests prevents a direct reconstruction of such processes. To describe community-level historical trends in forest composition, we turned therefore to inferential methods based on the reconstruction of past demographic changes. In particular, we modelled the history of rainforests in the eastern Guiana Shield over a timescale of several thousand generations, through the application of approximate Bayesian computation and maximum-likelihood methods to diversity data at nuclear and chloroplast loci in eight species or subspecies of rainforest trees. Depending on the species and on the method applied, we detected population contraction, expansion or stability, with a general trend in favour of stability or expansion, with changes presumably having occurred during or after the LGM. These findings suggest that Guiana Shield rainforests have globally persisted, while expanding, through the Quaternary, but that different species have experienced different demographic events, with a trend towards the increase in frequency of light-demanding, disturbance-associated species. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/583788/1/Barthe_et_al-2017-Molecular_Ecology.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1111/mec.13949 10.1111/mec.13949 info:eu-repo/semantics/altIdentifier/doi/10.1111/mec.13949 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1111/mec.13949 info:eu-repo/semantics/dataset/purl/https://doi.org/10.5061/dryad.b58dv info:eu-repo/grantAgreement/EC///// |
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K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
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K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Barthe, Stéphanie Binelli, Giorgio Hérault, Bruno Scotti-Saintagne, Caroline Sabatier, Daniel Scotti, Ivan Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
description |
How Quaternary climatic and geological disturbances influenced the composition of Neotropical forests is hotly debated. Rainfall and temperature changes during and/or immediately after the last glacial maximum (LGM) are thought to have strongly affected the geographical distribution and local abundance of tree species. The paucity of the fossil records in Neotropical forests prevents a direct reconstruction of such processes. To describe community-level historical trends in forest composition, we turned therefore to inferential methods based on the reconstruction of past demographic changes. In particular, we modelled the history of rainforests in the eastern Guiana Shield over a timescale of several thousand generations, through the application of approximate Bayesian computation and maximum-likelihood methods to diversity data at nuclear and chloroplast loci in eight species or subspecies of rainforest trees. Depending on the species and on the method applied, we detected population contraction, expansion or stability, with a general trend in favour of stability or expansion, with changes presumably having occurred during or after the LGM. These findings suggest that Guiana Shield rainforests have globally persisted, while expanding, through the Quaternary, but that different species have experienced different demographic events, with a trend towards the increase in frequency of light-demanding, disturbance-associated species. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie P01 - Conservation de la nature et ressources foncières forêt forêt tropicale humide composition botanique histoire naturelle paléontologie climatologie géologie biogéographie distribution géographique dynamique des populations biodiversité chloroplaste http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_5088 http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_1671 http://aims.fao.org/aos/agrovoc/c_3232 http://aims.fao.org/aos/agrovoc/c_915 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_9824 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Barthe, Stéphanie Binelli, Giorgio Hérault, Bruno Scotti-Saintagne, Caroline Sabatier, Daniel Scotti, Ivan |
author_facet |
Barthe, Stéphanie Binelli, Giorgio Hérault, Bruno Scotti-Saintagne, Caroline Sabatier, Daniel Scotti, Ivan |
author_sort |
Barthe, Stéphanie |
title |
Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
title_short |
Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
title_full |
Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
title_fullStr |
Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
title_full_unstemmed |
Tropical rainforests that persisted: inferences from the Quaternary demographic history of eight tree species in the Guiana shield |
title_sort |
tropical rainforests that persisted: inferences from the quaternary demographic history of eight tree species in the guiana shield |
url |
http://agritrop.cirad.fr/583788/ http://agritrop.cirad.fr/583788/1/Barthe_et_al-2017-Molecular_Ecology.pdf |
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