Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island
One of the most important breeding colonies for gadfly petrels in the sub-tropics, Henderson Island in the South Pacific Ocean, was subjected to a rat eradication attempt in 2011, but the eradication failed. Here we examine whether the current population status of the endemic Henderson Petrel Pterod...
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Online Access: | https://doi.org/10.1080/01584197.2017.1292610 http://ecite.utas.edu.au/117219 |
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ftunivtasecite:oai:ecite.utas.edu.au:117219 2023-05-15T16:34:34+02:00 Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island Oppel, S Lavers, JL Donaldson, AH Forrest, AK McClelland, GTW Bond, AL Brooke, M de L 2017 https://doi.org/10.1080/01584197.2017.1292610 http://ecite.utas.edu.au/117219 en eng C S I R O Publishing http://dx.doi.org/10.1080/01584197.2017.1292610 Oppel, S and Lavers, JL and Donaldson, AH and Forrest, AK and McClelland, GTW and Bond, AL and Brooke, M de L, Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island, Emu, 117, (2) pp. 151-159. ISSN 0158-4197 (2017) [Refereed Article] http://ecite.utas.edu.au/117219 Environmental Sciences Environmental Science and Management Conservation and Biodiversity Refereed Article PeerReviewed 2017 ftunivtasecite https://doi.org/10.1080/01584197.2017.1292610 2019-12-13T22:16:38Z One of the most important breeding colonies for gadfly petrels in the sub-tropics, Henderson Island in the South Pacific Ocean, was subjected to a rat eradication attempt in 2011, but the eradication failed. Here we examine whether the current population status of the endemic Henderson Petrel Pterodroma atrata is consistent with an ongoing population decline. We collected basic biological information on Henderson Petrels in 2015 to compare estimates of breeding population size and nest survival to data from 1991. We found that the extrapolated population size of 19987 pairs was marginally higher than the comparable estimate of 18668 in 1991. We also estimated the nest survival of 25 nests to be 28.5%, and most nest failures occurred within 7days of hatching when chicks were killed by rats ( n =3) or a crab ( n =1). Breeding success was higher than in 1991, and possibly sufficient for a stable population. Although differences in survey effort render it difficult to directly compare estimates from 1991 and 2015, there is currently no evidence that the conservation status of the Henderson Petrel has deteriorated since it was listed as Endangered by the IUCN. Article in Journal/Newspaper Henderson Island eCite UTAS (University of Tasmania) Henderson Island ENVELOPE(97.200,97.200,-66.367,-66.367) Pacific Emu - Austral Ornithology 117 2 151 159 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity |
spellingShingle |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity Oppel, S Lavers, JL Donaldson, AH Forrest, AK McClelland, GTW Bond, AL Brooke, M de L Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
topic_facet |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity |
description |
One of the most important breeding colonies for gadfly petrels in the sub-tropics, Henderson Island in the South Pacific Ocean, was subjected to a rat eradication attempt in 2011, but the eradication failed. Here we examine whether the current population status of the endemic Henderson Petrel Pterodroma atrata is consistent with an ongoing population decline. We collected basic biological information on Henderson Petrels in 2015 to compare estimates of breeding population size and nest survival to data from 1991. We found that the extrapolated population size of 19987 pairs was marginally higher than the comparable estimate of 18668 in 1991. We also estimated the nest survival of 25 nests to be 28.5%, and most nest failures occurred within 7days of hatching when chicks were killed by rats ( n =3) or a crab ( n =1). Breeding success was higher than in 1991, and possibly sufficient for a stable population. Although differences in survey effort render it difficult to directly compare estimates from 1991 and 2015, there is currently no evidence that the conservation status of the Henderson Petrel has deteriorated since it was listed as Endangered by the IUCN. |
format |
Article in Journal/Newspaper |
author |
Oppel, S Lavers, JL Donaldson, AH Forrest, AK McClelland, GTW Bond, AL Brooke, M de L |
author_facet |
Oppel, S Lavers, JL Donaldson, AH Forrest, AK McClelland, GTW Bond, AL Brooke, M de L |
author_sort |
Oppel, S |
title |
Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
title_short |
Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
title_full |
Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
title_fullStr |
Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
title_full_unstemmed |
Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island |
title_sort |
population status, breeding success and ecology of the henderson petrel after a failed rat eradication on henderson island |
publisher |
C S I R O Publishing |
publishDate |
2017 |
url |
https://doi.org/10.1080/01584197.2017.1292610 http://ecite.utas.edu.au/117219 |
long_lat |
ENVELOPE(97.200,97.200,-66.367,-66.367) |
geographic |
Henderson Island Pacific |
geographic_facet |
Henderson Island Pacific |
genre |
Henderson Island |
genre_facet |
Henderson Island |
op_relation |
http://dx.doi.org/10.1080/01584197.2017.1292610 Oppel, S and Lavers, JL and Donaldson, AH and Forrest, AK and McClelland, GTW and Bond, AL and Brooke, M de L, Population status, breeding success and ecology of the Henderson Petrel after a failed rat eradication on Henderson Island, Emu, 117, (2) pp. 151-159. ISSN 0158-4197 (2017) [Refereed Article] http://ecite.utas.edu.au/117219 |
op_doi |
https://doi.org/10.1080/01584197.2017.1292610 |
container_title |
Emu - Austral Ornithology |
container_volume |
117 |
container_issue |
2 |
container_start_page |
151 |
op_container_end_page |
159 |
_version_ |
1766024512491487232 |