“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia
International audience The biodiversity hotspot of New Caledonia hosts high levels of endemism (74% of flora) that is threatened increasingly by climate change, habitat reduction, and inva-sive species. The fruit-eating red-vented bulbul (Pycnonotus cafer) is currently invading the main island of th...
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Online Access: | https://hal.science/hal-02087320 https://hal.science/hal-02087320/document https://hal.science/hal-02087320/file/Thibault_et_al-2018-Ecology_and_Evolution.pdf https://doi.org/10.1002/ece3.4140 |
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ftunivavignon:oai:HAL:hal-02087320v1 2024-04-28T08:14:46+00:00 “Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia Thibault, Martin Masse, Felix Pujapujane, Aurore Lannuzel, Guillaume Bordez, Laurent Brescia, Fabrice Vidal, Eric Fogliani, Bruno Potter, Murray A. Massey University Institut Agronomique Néo-Calédonien (IAC) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) 2018 https://hal.science/hal-02087320 https://hal.science/hal-02087320/document https://hal.science/hal-02087320/file/Thibault_et_al-2018-Ecology_and_Evolution.pdf https://doi.org/10.1002/ece3.4140 en eng HAL CCSD Wiley Open Access info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.4140 hal-02087320 https://hal.science/hal-02087320 https://hal.science/hal-02087320/document https://hal.science/hal-02087320/file/Thibault_et_al-2018-Ecology_and_Evolution.pdf doi:10.1002/ece3.4140 IRD: fdi:010074157 info:eu-repo/semantics/OpenAccess EISSN: 2045-7758 Ecology and Evolution https://hal.science/hal-02087320 Ecology and Evolution, 2018, 8 (18), pp.9259-9269. ⟨10.1002/ece3.4140⟩ invasive bird island plant community seed dispersal effectiveness conservation [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/article Journal articles 2018 ftunivavignon https://doi.org/10.1002/ece3.4140 2024-04-10T23:49:22Z International audience The biodiversity hotspot of New Caledonia hosts high levels of endemism (74% of flora) that is threatened increasingly by climate change, habitat reduction, and inva-sive species. The fruit-eating red-vented bulbul (Pycnonotus cafer) is currently invading the main island of the archipelago, and its recent dispersal out of urbanized habitats raises questions about its potential to disperse noxious plant seeds along urban corridors and beyond. Indeed, the red-vented bulbul is considered a vector of several introduced plant species in its alien range including Miconia calvescens, Lantana camara, and Schinus terebinthifolius. We conducted a quantitative assessment of the bulbul's fruits consumption by analyzing the gut contents of shot birds. We estimated gut passage times for four species of fruit found in gut contents (S. terebin-thifolius, Myrtastrum rufopunctatum, Passiflora suberosa, and Ficus prolixa) and tested the effects of bird digestion on seed germination rates for two species. Finally, we monitored the movements of individual VHF radio-tagged red-vented bulbuls. All of the consumed fruit species we identified here have red fleshy diaspore, including fruit of the shrub M. rufopunctatum that occurred frequently (9.6%) in bulbul gut samples. Median gut passage times were short (15-41 min), corresponding to short-distance seed transportation (77-92 m). The effect of gut passage was positive for the germination of the invasive S. terebinthifolius and negative for the endemic M. ru-fopunctatum, suggesting a potential bias in the contribution to the dispersal toward alien species. This study provides the first integrated assessment of mechanisms involved in the seed dispersal effectiveness of this high-concern invasive bird species that is expected to face similar plant communities in most of its alien range in tropical islands. More generally, our results enhance knowledge of synergies between non-native frugivores and plant species dispersal. Article in Journal/Newspaper Bird Island Université d'Avignon et des Pays de Vaucluse: HAL Ecology and Evolution 8 18 9259 9269 |
institution |
Open Polar |
collection |
Université d'Avignon et des Pays de Vaucluse: HAL |
op_collection_id |
ftunivavignon |
language |
English |
topic |
invasive bird island plant community seed dispersal effectiveness conservation [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
invasive bird island plant community seed dispersal effectiveness conservation [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Thibault, Martin Masse, Felix Pujapujane, Aurore Lannuzel, Guillaume Bordez, Laurent Brescia, Fabrice Vidal, Eric Fogliani, Bruno Potter, Murray A. “Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
topic_facet |
invasive bird island plant community seed dispersal effectiveness conservation [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
International audience The biodiversity hotspot of New Caledonia hosts high levels of endemism (74% of flora) that is threatened increasingly by climate change, habitat reduction, and inva-sive species. The fruit-eating red-vented bulbul (Pycnonotus cafer) is currently invading the main island of the archipelago, and its recent dispersal out of urbanized habitats raises questions about its potential to disperse noxious plant seeds along urban corridors and beyond. Indeed, the red-vented bulbul is considered a vector of several introduced plant species in its alien range including Miconia calvescens, Lantana camara, and Schinus terebinthifolius. We conducted a quantitative assessment of the bulbul's fruits consumption by analyzing the gut contents of shot birds. We estimated gut passage times for four species of fruit found in gut contents (S. terebin-thifolius, Myrtastrum rufopunctatum, Passiflora suberosa, and Ficus prolixa) and tested the effects of bird digestion on seed germination rates for two species. Finally, we monitored the movements of individual VHF radio-tagged red-vented bulbuls. All of the consumed fruit species we identified here have red fleshy diaspore, including fruit of the shrub M. rufopunctatum that occurred frequently (9.6%) in bulbul gut samples. Median gut passage times were short (15-41 min), corresponding to short-distance seed transportation (77-92 m). The effect of gut passage was positive for the germination of the invasive S. terebinthifolius and negative for the endemic M. ru-fopunctatum, suggesting a potential bias in the contribution to the dispersal toward alien species. This study provides the first integrated assessment of mechanisms involved in the seed dispersal effectiveness of this high-concern invasive bird species that is expected to face similar plant communities in most of its alien range in tropical islands. More generally, our results enhance knowledge of synergies between non-native frugivores and plant species dispersal. |
author2 |
Massey University Institut Agronomique Néo-Calédonien (IAC) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Thibault, Martin Masse, Felix Pujapujane, Aurore Lannuzel, Guillaume Bordez, Laurent Brescia, Fabrice Vidal, Eric Fogliani, Bruno Potter, Murray A. |
author_facet |
Thibault, Martin Masse, Felix Pujapujane, Aurore Lannuzel, Guillaume Bordez, Laurent Brescia, Fabrice Vidal, Eric Fogliani, Bruno Potter, Murray A. |
author_sort |
Thibault, Martin |
title |
“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
title_short |
“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
title_full |
“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
title_fullStr |
“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
title_full_unstemmed |
“Liaisons dangereuses”: The invasive red-vented bulbul ( Pycnonotus cafer ), a disperser of exotic plant species in New Caledonia |
title_sort |
“liaisons dangereuses”: the invasive red-vented bulbul ( pycnonotus cafer ), a disperser of exotic plant species in new caledonia |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02087320 https://hal.science/hal-02087320/document https://hal.science/hal-02087320/file/Thibault_et_al-2018-Ecology_and_Evolution.pdf https://doi.org/10.1002/ece3.4140 |
genre |
Bird Island |
genre_facet |
Bird Island |
op_source |
EISSN: 2045-7758 Ecology and Evolution https://hal.science/hal-02087320 Ecology and Evolution, 2018, 8 (18), pp.9259-9269. ⟨10.1002/ece3.4140⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.4140 hal-02087320 https://hal.science/hal-02087320 https://hal.science/hal-02087320/document https://hal.science/hal-02087320/file/Thibault_et_al-2018-Ecology_and_Evolution.pdf doi:10.1002/ece3.4140 IRD: fdi:010074157 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/ece3.4140 |
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Ecology and Evolution |
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8 |
container_issue |
18 |
container_start_page |
9259 |
op_container_end_page |
9269 |
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1797580680045002752 |