Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds
ABSTRACT Introduced predators are one of the greatest threats facing seabirds worldwide. We investigated the effects of multiple introduced predators on 2 endangered seabirds, the Newell's shearwater ( Puffinus newelli ) and the Hawaiian petrel ( Pterodroma sandwichensis ), on the island of Kau...
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crwiley:10.1002/jwmg.21824 2024-06-23T07:56:24+00:00 Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds Raine, André F. Driskill, Scott Vynne, Megan Harvey, Derek Pias, Kyle 2020 http://dx.doi.org/10.1002/jwmg.21824 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjwmg.21824 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jwmg.21824 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jwmg.21824 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Journal of Wildlife Management volume 84, issue 3, page 425-435 ISSN 0022-541X 1937-2817 journal-article 2020 crwiley https://doi.org/10.1002/jwmg.21824 2024-06-11T04:39:39Z ABSTRACT Introduced predators are one of the greatest threats facing seabirds worldwide. We investigated the effects of multiple introduced predators on 2 endangered seabirds, the Newell's shearwater ( Puffinus newelli ) and the Hawaiian petrel ( Pterodroma sandwichensis ), on the island of Kauaʻi, Hawaiʻi, USA. Between 2011 and 2017, we recorded 309 depredations of which 35.6% were by feral cats, 50.2% by black rats ( Rattus rattus ), 10.4% by pigs ( Sus scrofa feral pigs), and 3.9% by barn owls ( Tyto alba ). Cats were the most destructive of the predators because they killed more breeding adults than chicks, which had repercussions on breeding probability in following years. Cats and rats were also the most prevalent of all the predators, depredating birds at all of the sites under consideration regardless of how remote or inaccessible. We also considered the effectiveness of predator control over the study period. Reproductive success at all sites increased once predator control operations were in place and depredations by all species except barn owls decreased. Furthermore, we modeled population trajectories for all sites with and without predator control. Without predator control, population trajectories at all sites declined rapidly over 50 years. With predator control operations in place, populations at all sites increased; thus, controlling introduced predators at endangered seabird colonies is important for their management. © 2020 The Wildlife Society. Article in Journal/Newspaper Rattus rattus Wiley Online Library The Journal of Wildlife Management 84 3 425 435 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Introduced predators are one of the greatest threats facing seabirds worldwide. We investigated the effects of multiple introduced predators on 2 endangered seabirds, the Newell's shearwater ( Puffinus newelli ) and the Hawaiian petrel ( Pterodroma sandwichensis ), on the island of Kauaʻi, Hawaiʻi, USA. Between 2011 and 2017, we recorded 309 depredations of which 35.6% were by feral cats, 50.2% by black rats ( Rattus rattus ), 10.4% by pigs ( Sus scrofa feral pigs), and 3.9% by barn owls ( Tyto alba ). Cats were the most destructive of the predators because they killed more breeding adults than chicks, which had repercussions on breeding probability in following years. Cats and rats were also the most prevalent of all the predators, depredating birds at all of the sites under consideration regardless of how remote or inaccessible. We also considered the effectiveness of predator control over the study period. Reproductive success at all sites increased once predator control operations were in place and depredations by all species except barn owls decreased. Furthermore, we modeled population trajectories for all sites with and without predator control. Without predator control, population trajectories at all sites declined rapidly over 50 years. With predator control operations in place, populations at all sites increased; thus, controlling introduced predators at endangered seabird colonies is important for their management. © 2020 The Wildlife Society. |
format |
Article in Journal/Newspaper |
author |
Raine, André F. Driskill, Scott Vynne, Megan Harvey, Derek Pias, Kyle |
spellingShingle |
Raine, André F. Driskill, Scott Vynne, Megan Harvey, Derek Pias, Kyle Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
author_facet |
Raine, André F. Driskill, Scott Vynne, Megan Harvey, Derek Pias, Kyle |
author_sort |
Raine, André F. |
title |
Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
title_short |
Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
title_full |
Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
title_fullStr |
Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
title_full_unstemmed |
Managing the Effects of Introduced Predators on Hawaiian Endangered Seabirds |
title_sort |
managing the effects of introduced predators on hawaiian endangered seabirds |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/jwmg.21824 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjwmg.21824 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jwmg.21824 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jwmg.21824 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
The Journal of Wildlife Management volume 84, issue 3, page 425-435 ISSN 0022-541X 1937-2817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jwmg.21824 |
container_title |
The Journal of Wildlife Management |
container_volume |
84 |
container_issue |
3 |
container_start_page |
425 |
op_container_end_page |
435 |
_version_ |
1802649463451287552 |