Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean
International audience The eradication of invasive mammals on islands is important for protecting seabird populations and insular ecosystems. However, the impacts of such eradications are insufficiently known because monitoring of potentially beneficiary species is often sporadic and limited. We per...
Published in: | Journal for Nature Conservation |
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Online Access: | https://hal.archives-ouvertes.fr/hal-03350341 https://doi.org/10.1016/j.jnc.2021.126049 |
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ftunivnantes:oai:HAL:hal-03350341v1 2023-05-15T13:22:32+02:00 Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean Barbraud, Christophe Delord, Karine Le Bouard, Fabrice Harivel, Roald Demay, Jérémie Chaigne, Adrien Micol, Thierry Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises TAAF Ligue pour la Protection des Oiseaux (LPO) 2021-10 https://hal.archives-ouvertes.fr/hal-03350341 https://doi.org/10.1016/j.jnc.2021.126049 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnc.2021.126049 hal-03350341 https://hal.archives-ouvertes.fr/hal-03350341 doi:10.1016/j.jnc.2021.126049 ISSN: 1617-1381 Journal for Nature Conservation https://hal.archives-ouvertes.fr/hal-03350341 Journal for Nature Conservation, 2021, 63, pp.126049. ⟨10.1016/j.jnc.2021.126049⟩ Rats Island restoration Petrels Population growth rate Shearwaters Terns [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1016/j.jnc.2021.126049 2023-01-03T23:57:52Z International audience The eradication of invasive mammals on islands is important for protecting seabird populations and insular ecosystems. However, the impacts of such eradications are insufficiently known because monitoring of potentially beneficiary species is often sporadic and limited. We performed a survey of all seabird species on Saint-Paul Island, southern Indian Ocean, 20 years after successful eradication of invasive black rat (Rattus rattus) and European rabbit (Oryctolagus cuniculus). Using complementary sampling designs including adaptive cluster sampling, stratified random sampling and entire sampling, we estimated population changes and colonization by new seabird species. A total of 13 seabird species were found breeding on Saint-Paul post-eradication compared to six before the eradication. Among the seven species that colonized the island, five (MacGillivray’s prion Pachyptila macgillivrayi, fairy prion P. turtur, white-bellied storm petrel Fregetta grallaria, Antarctic tern Sterna vittata, sooty tern Onychoprion fuscatus) had relictual populations breeding on a nearby islet, and one (brown skua Catharacta antarctica) was a new breeding species. We also found breeding subantarctic little shearwaters Puffinus elegans. For species that were breeding on the Saint Paul pre-eradication, the mean annual population growth rate was 1.030 ± 0.093 (SE). Species known to be vulnerable to rat predation (prions, great-winged petrel Pterodroma macroptera, flesh-footed shearwater Puffinus carneipes, subantarctic little shearwater, white-bellied storm petrel, Antarctic tern) had the highest population growth rates. Two decades after the eradication of invasive mammals on a remote oceanic island, seabird populations were high beneficiaries. These findings further highlight the importance of invasive mammal eradication on islands as a conservation tool. Results are encouraging for the planned eradication of invasive mammals from nearby Amsterdam Island, and suggest this will mainly benefit terns and small ... Article in Journal/Newspaper Amsterdam Island Antarc* Antarctic Antarctica Brown Skua Rattus rattus Saint-Paul Island Sterna vittata Université de Nantes: HAL-UNIV-NANTES Antarctic Indian Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) Journal for Nature Conservation 63 126049 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Rats Island restoration Petrels Population growth rate Shearwaters Terns [SDE]Environmental Sciences |
spellingShingle |
Rats Island restoration Petrels Population growth rate Shearwaters Terns [SDE]Environmental Sciences Barbraud, Christophe Delord, Karine Le Bouard, Fabrice Harivel, Roald Demay, Jérémie Chaigne, Adrien Micol, Thierry Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
topic_facet |
Rats Island restoration Petrels Population growth rate Shearwaters Terns [SDE]Environmental Sciences |
description |
International audience The eradication of invasive mammals on islands is important for protecting seabird populations and insular ecosystems. However, the impacts of such eradications are insufficiently known because monitoring of potentially beneficiary species is often sporadic and limited. We performed a survey of all seabird species on Saint-Paul Island, southern Indian Ocean, 20 years after successful eradication of invasive black rat (Rattus rattus) and European rabbit (Oryctolagus cuniculus). Using complementary sampling designs including adaptive cluster sampling, stratified random sampling and entire sampling, we estimated population changes and colonization by new seabird species. A total of 13 seabird species were found breeding on Saint-Paul post-eradication compared to six before the eradication. Among the seven species that colonized the island, five (MacGillivray’s prion Pachyptila macgillivrayi, fairy prion P. turtur, white-bellied storm petrel Fregetta grallaria, Antarctic tern Sterna vittata, sooty tern Onychoprion fuscatus) had relictual populations breeding on a nearby islet, and one (brown skua Catharacta antarctica) was a new breeding species. We also found breeding subantarctic little shearwaters Puffinus elegans. For species that were breeding on the Saint Paul pre-eradication, the mean annual population growth rate was 1.030 ± 0.093 (SE). Species known to be vulnerable to rat predation (prions, great-winged petrel Pterodroma macroptera, flesh-footed shearwater Puffinus carneipes, subantarctic little shearwater, white-bellied storm petrel, Antarctic tern) had the highest population growth rates. Two decades after the eradication of invasive mammals on a remote oceanic island, seabird populations were high beneficiaries. These findings further highlight the importance of invasive mammal eradication on islands as a conservation tool. Results are encouraging for the planned eradication of invasive mammals from nearby Amsterdam Island, and suggest this will mainly benefit terns and small ... |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises TAAF Ligue pour la Protection des Oiseaux (LPO) |
format |
Article in Journal/Newspaper |
author |
Barbraud, Christophe Delord, Karine Le Bouard, Fabrice Harivel, Roald Demay, Jérémie Chaigne, Adrien Micol, Thierry |
author_facet |
Barbraud, Christophe Delord, Karine Le Bouard, Fabrice Harivel, Roald Demay, Jérémie Chaigne, Adrien Micol, Thierry |
author_sort |
Barbraud, Christophe |
title |
Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
title_short |
Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
title_full |
Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
title_fullStr |
Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
title_full_unstemmed |
Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean |
title_sort |
seabird population changes following mammal eradication at oceanic saint-paul island, indian ocean |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-03350341 https://doi.org/10.1016/j.jnc.2021.126049 |
long_lat |
ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Antarctic Indian Saint-Paul |
geographic_facet |
Antarctic Indian Saint-Paul |
genre |
Amsterdam Island Antarc* Antarctic Antarctica Brown Skua Rattus rattus Saint-Paul Island Sterna vittata |
genre_facet |
Amsterdam Island Antarc* Antarctic Antarctica Brown Skua Rattus rattus Saint-Paul Island Sterna vittata |
op_source |
ISSN: 1617-1381 Journal for Nature Conservation https://hal.archives-ouvertes.fr/hal-03350341 Journal for Nature Conservation, 2021, 63, pp.126049. ⟨10.1016/j.jnc.2021.126049⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnc.2021.126049 hal-03350341 https://hal.archives-ouvertes.fr/hal-03350341 doi:10.1016/j.jnc.2021.126049 |
op_doi |
https://doi.org/10.1016/j.jnc.2021.126049 |
container_title |
Journal for Nature Conservation |
container_volume |
63 |
container_start_page |
126049 |
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1766365414338592768 |