Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen
International audience The blue petrel (Halobaena caerulea) is a small pelagic seabird breeding on just a few Southern Ocean islands. Although it is known that oceanographic and climatic variability affect mortality rates, individual body condition and reproductive success, very few data are availab...
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Online Access: | https://doi.org/10.1017/S095410200600023X https://hal.archives-ouvertes.fr/hal-00182566/file/BAS18.pdf https://hal.archives-ouvertes.fr/hal-00182566 |
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fttriple:oai:gotriple.eu:10670/1.ru9j4q 2023-05-15T14:14:43+02:00 Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen Barbraud, Christophe Delord, Karine Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2006-10-27 https://doi.org/10.1017/S095410200600023X https://hal.archives-ouvertes.fr/hal-00182566/file/BAS18.pdf https://hal.archives-ouvertes.fr/hal-00182566 en eng HAL CCSD hal-00182566 doi:10.1017/S095410200600023X 10670/1.ru9j4q https://hal.archives-ouvertes.fr/hal-00182566/file/BAS18.pdf https://hal.archives-ouvertes.fr/hal-00182566 other Hyper Article en Ligne - Sciences de l'Homme et de la Société Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE, 2006, 18 (2), pp.199-204. ⟨10.1017/S095410200600023X⟩ burrow density burrow occupancy playback population size sampling envir demo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2006 fttriple https://doi.org/10.1017/S095410200600023X 2023-01-22T18:49:28Z International audience The blue petrel (Halobaena caerulea) is a small pelagic seabird breeding on just a few Southern Ocean islands. Although it is known that oceanographic and climatic variability affect mortality rates, individual body condition and reproductive success, very few data are available on the global population status. We assessed the status of blue petrels at Mayes Island, Iles Kerguelen, in 2002 by estimating burrow densities and burrow occupancy using acoustic playbacks and response probability. The mean and highest burrow densities recorded were respectively 0.136 ± 0.026 and 2.3 entrances per m2. Burrow occupancy increased with burrow density but stabilized at c. 0.6 occupied burrows per m2. Taking into account the response probability to playback (0.819) the mean burrow occupancy density was 0.037 ± 0.094 per m2, giving an estimated 142 000 (95% CI around 106 000–179 000) or 148 000 breeding pairs (95% CI around 55 000–241 000) on Mayes Island, respectively with and without taking into account spatial autocorrelation in burrow densities. This suggests that the entire breeding population of blue petrels at Kerguelen is much higher than current estimates, and that Kerguelen and Diego Ramírez archipelagos are key breeding sites for this species. Article in Journal/Newspaper Antarctic Science Southern Ocean Unknown Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Kerguelen Southern Ocean Antarctic Science 23 6 567 577 |
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language |
English |
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burrow density burrow occupancy playback population size sampling envir demo |
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burrow density burrow occupancy playback population size sampling envir demo Barbraud, Christophe Delord, Karine Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
topic_facet |
burrow density burrow occupancy playback population size sampling envir demo |
description |
International audience The blue petrel (Halobaena caerulea) is a small pelagic seabird breeding on just a few Southern Ocean islands. Although it is known that oceanographic and climatic variability affect mortality rates, individual body condition and reproductive success, very few data are available on the global population status. We assessed the status of blue petrels at Mayes Island, Iles Kerguelen, in 2002 by estimating burrow densities and burrow occupancy using acoustic playbacks and response probability. The mean and highest burrow densities recorded were respectively 0.136 ± 0.026 and 2.3 entrances per m2. Burrow occupancy increased with burrow density but stabilized at c. 0.6 occupied burrows per m2. Taking into account the response probability to playback (0.819) the mean burrow occupancy density was 0.037 ± 0.094 per m2, giving an estimated 142 000 (95% CI around 106 000–179 000) or 148 000 breeding pairs (95% CI around 55 000–241 000) on Mayes Island, respectively with and without taking into account spatial autocorrelation in burrow densities. This suggests that the entire breeding population of blue petrels at Kerguelen is much higher than current estimates, and that Kerguelen and Diego Ramírez archipelagos are key breeding sites for this species. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Barbraud, Christophe Delord, Karine |
author_facet |
Barbraud, Christophe Delord, Karine |
author_sort |
Barbraud, Christophe |
title |
Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
title_short |
Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
title_full |
Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
title_fullStr |
Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
title_full_unstemmed |
Population census of blue petrels Halobaena caerulea at Mayes Island, Iles Kerguelen |
title_sort |
population census of blue petrels halobaena caerulea at mayes island, iles kerguelen |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://doi.org/10.1017/S095410200600023X https://hal.archives-ouvertes.fr/hal-00182566/file/BAS18.pdf https://hal.archives-ouvertes.fr/hal-00182566 |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) |
geographic |
Burrows Kerguelen Southern Ocean |
geographic_facet |
Burrows Kerguelen Southern Ocean |
genre |
Antarctic Science Southern Ocean |
genre_facet |
Antarctic Science Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE, 2006, 18 (2), pp.199-204. ⟨10.1017/S095410200600023X⟩ |
op_relation |
hal-00182566 doi:10.1017/S095410200600023X 10670/1.ru9j4q https://hal.archives-ouvertes.fr/hal-00182566/file/BAS18.pdf https://hal.archives-ouvertes.fr/hal-00182566 |
op_rights |
other |
op_doi |
https://doi.org/10.1017/S095410200600023X |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
6 |
container_start_page |
567 |
op_container_end_page |
577 |
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1766287038373429248 |