Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen
National 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...
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ftccsdartic:oai:HAL:hal-00211292v1 2024-02-27T08:45:39+00:00 Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen Barbraud, Christophe Delord, Karine Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2006-04-08 https://hal.science/hal-00211292 https://doi.org/10.1017/S095410200600023X en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1017/S095410200600023X hal-00211292 https://hal.science/hal-00211292 doi:10.1017/S095410200600023X antartic science https://hal.science/hal-00211292 antartic science, 2006, 18 (2), pp.199-204. ⟨10.1017/S095410200600023X⟩ burrow density burrow occupancy playback population size sampling [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2006 ftccsdartic https://doi.org/10.1017/S095410200600023X 2024-01-28T03:00:39Z National 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 Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Southern Ocean Kerguelen Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Antarctic Science 18 2 199 204 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
burrow density burrow occupancy playback population size sampling [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
burrow density burrow occupancy playback population size sampling [SDE.BE]Environmental Sciences/Biodiversity and Ecology Barbraud, Christophe Delord, Karine Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
topic_facet |
burrow density burrow occupancy playback population size sampling [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
National 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 |
Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
title_short |
Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
title_full |
Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
title_fullStr |
Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
title_full_unstemmed |
Populations census of blue petrels Halobaena caerulea at Mayes Islands, Iles Kerguelen |
title_sort |
populations census of blue petrels halobaena caerulea at mayes islands, iles kerguelen |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00211292 https://doi.org/10.1017/S095410200600023X |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) |
geographic |
Southern Ocean Kerguelen Burrows |
geographic_facet |
Southern Ocean Kerguelen Burrows |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
antartic science https://hal.science/hal-00211292 antartic science, 2006, 18 (2), pp.199-204. ⟨10.1017/S095410200600023X⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S095410200600023X hal-00211292 https://hal.science/hal-00211292 doi:10.1017/S095410200600023X |
op_doi |
https://doi.org/10.1017/S095410200600023X |
container_title |
Antarctic Science |
container_volume |
18 |
container_issue |
2 |
container_start_page |
199 |
op_container_end_page |
204 |
_version_ |
1792054935365353472 |