Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco
International audience Morocco is an area subject to recurrent severe droughts, desertification and an increasing land degradation. It is within a Mediterranean hotspot of biodiversity as it harbors many threatened endemic species such as the argan tree (Argania spinosa). In this context, past clima...
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ftciradhal:oai:HAL:hal-02354638v1 2024-05-19T07:45:23+00:00 Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco Zhao, Xueqin Dupont, Lydie Cheddadi, Rachid Kölling, Martin Reddad, Hanane Groeneveld, Jeroen Ain-Lhout, Fatima Zohra Bouimetarhan, Ilham Center for Marine Environmental Sciences Bremen (MARUM) Universität Bremen Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Université Sultan Moulay Slimane (USMS ) Université Ibn Zohr Agadir This work was funded by the German Federal Ministry of Education and Research (BMBF),Germany with grant number (PMARS2015-100) through the PMARS initiative “Programme Marocco-Allemand de la Recherche Scientifique (PMARS III)” granted to Dr. Ilham Bouimetarhan. 2019-10-01 https://hal.science/hal-02354638 https://doi.org/10.1016/j.quascirev.2019.105889 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.105889 hal-02354638 https://hal.science/hal-02354638 doi:10.1016/j.quascirev.2019.105889 http://creativecommons.org/licenses/by-nc-nd/ ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02354638 Quaternary Science Reviews, 2019, 221 (10), pp.105889. ⟨10.1016/j.quascirev.2019.105889⟩ [SDE.ES]Environmental Sciences/Environment and Society info:eu-repo/semantics/article Journal articles 2019 ftciradhal https://doi.org/10.1016/j.quascirev.2019.105889 2024-05-02T00:18:52Z International audience Morocco is an area subject to recurrent severe droughts, desertification and an increasing land degradation. It is within a Mediterranean hotspot of biodiversity as it harbors many threatened endemic species such as the argan tree (Argania spinosa). In this context, past climate records are needed to analyze the impact of climate variability on the occurrence and future persistence of these endemic species. In order to evaluate the impact of past climate changes on the endemic Argan tree in southern Morocco, we reconstructed its modern range using an extensive pollen dataset. The modern pollen distribution off southwestern Morocco was then utilized to interpret the high-resolution pollen record with complementary micro-charcoal and XRF element records from a marine sediment core GeoB8601-3 off Cape Ghir in southwestern Morocco covering the last three millennia. This multi-proxy study has shown clear evidence of wetter conditions resulting in higher fluvial input which could be correlated with a negative mode of the North Atlantic Oscillation (NAO), in contrast to the published pollen and XRF element records from another nearby core that showed limited effect of climate changes. On the other hand, clear opposite trend between the pollen occurrences of Argania spinosa and the fire frequency was observed throughout our fossil record. The increase of Argania spinosa pollen occurrences, along with herbaceous taxa, and lower fire frequency might suggest an increase in human impact on the landscape leading to a sparse vegetation cover and subsequently increased erosion. The reconstructed pollen-based vegetation, micro-charcoal-based fire activities and geochemical changes in our marine record suggest interplay of climate and anthropogenic effects on the landscape. Article in Journal/Newspaper North Atlantic North Atlantic oscillation CIRAD: HAL (Agricultural Research for Development) Quaternary Science Reviews 221 105889 |
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Open Polar |
collection |
CIRAD: HAL (Agricultural Research for Development) |
op_collection_id |
ftciradhal |
language |
English |
topic |
[SDE.ES]Environmental Sciences/Environment and Society |
spellingShingle |
[SDE.ES]Environmental Sciences/Environment and Society Zhao, Xueqin Dupont, Lydie Cheddadi, Rachid Kölling, Martin Reddad, Hanane Groeneveld, Jeroen Ain-Lhout, Fatima Zohra Bouimetarhan, Ilham Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
topic_facet |
[SDE.ES]Environmental Sciences/Environment and Society |
description |
International audience Morocco is an area subject to recurrent severe droughts, desertification and an increasing land degradation. It is within a Mediterranean hotspot of biodiversity as it harbors many threatened endemic species such as the argan tree (Argania spinosa). In this context, past climate records are needed to analyze the impact of climate variability on the occurrence and future persistence of these endemic species. In order to evaluate the impact of past climate changes on the endemic Argan tree in southern Morocco, we reconstructed its modern range using an extensive pollen dataset. The modern pollen distribution off southwestern Morocco was then utilized to interpret the high-resolution pollen record with complementary micro-charcoal and XRF element records from a marine sediment core GeoB8601-3 off Cape Ghir in southwestern Morocco covering the last three millennia. This multi-proxy study has shown clear evidence of wetter conditions resulting in higher fluvial input which could be correlated with a negative mode of the North Atlantic Oscillation (NAO), in contrast to the published pollen and XRF element records from another nearby core that showed limited effect of climate changes. On the other hand, clear opposite trend between the pollen occurrences of Argania spinosa and the fire frequency was observed throughout our fossil record. The increase of Argania spinosa pollen occurrences, along with herbaceous taxa, and lower fire frequency might suggest an increase in human impact on the landscape leading to a sparse vegetation cover and subsequently increased erosion. The reconstructed pollen-based vegetation, micro-charcoal-based fire activities and geochemical changes in our marine record suggest interplay of climate and anthropogenic effects on the landscape. |
author2 |
Center for Marine Environmental Sciences Bremen (MARUM) Universität Bremen Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Université Sultan Moulay Slimane (USMS ) Université Ibn Zohr Agadir This work was funded by the German Federal Ministry of Education and Research (BMBF),Germany with grant number (PMARS2015-100) through the PMARS initiative “Programme Marocco-Allemand de la Recherche Scientifique (PMARS III)” granted to Dr. Ilham Bouimetarhan. |
format |
Article in Journal/Newspaper |
author |
Zhao, Xueqin Dupont, Lydie Cheddadi, Rachid Kölling, Martin Reddad, Hanane Groeneveld, Jeroen Ain-Lhout, Fatima Zohra Bouimetarhan, Ilham |
author_facet |
Zhao, Xueqin Dupont, Lydie Cheddadi, Rachid Kölling, Martin Reddad, Hanane Groeneveld, Jeroen Ain-Lhout, Fatima Zohra Bouimetarhan, Ilham |
author_sort |
Zhao, Xueqin |
title |
Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
title_short |
Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
title_full |
Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
title_fullStr |
Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
title_full_unstemmed |
Recent climatic and anthropogenic impacts on endemic species in southwestern Morocco |
title_sort |
recent climatic and anthropogenic impacts on endemic species in southwestern morocco |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02354638 https://doi.org/10.1016/j.quascirev.2019.105889 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02354638 Quaternary Science Reviews, 2019, 221 (10), pp.105889. ⟨10.1016/j.quascirev.2019.105889⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.105889 hal-02354638 https://hal.science/hal-02354638 doi:10.1016/j.quascirev.2019.105889 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ |
op_doi |
https://doi.org/10.1016/j.quascirev.2019.105889 |
container_title |
Quaternary Science Reviews |
container_volume |
221 |
container_start_page |
105889 |
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1799485415595442176 |