The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae
Summary We investigated the impact of introduced predators on the productivity of the St Helena Plover Charadrius sanctaehelenae , a shorebird endemic to the South Atlantic island of St Helena. The nest predator species identified have all been introduced to St Helena in the last 510 years, and all...
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Cambridge University Press (CUP)
2013
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Online Access: | http://dx.doi.org/10.1017/s0959270913000245 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270913000245 |
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crcambridgeupr:10.1017/s0959270913000245 2024-05-12T08:10:22+00:00 The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae BURNS, FIONA MCCULLOCH, NEIL SZÉKELY, TAMÁS BOLTON, MARK 2013 http://dx.doi.org/10.1017/s0959270913000245 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270913000245 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Bird Conservation International volume 23, issue 2, page 125-135 ISSN 0959-2709 1474-0001 Nature and Landscape Conservation Animal Science and Zoology Ecology journal-article 2013 crcambridgeupr https://doi.org/10.1017/s0959270913000245 2024-04-18T06:54:01Z Summary We investigated the impact of introduced predators on the productivity of the St Helena Plover Charadrius sanctaehelenae , a shorebird endemic to the South Atlantic island of St Helena. The nest predator species identified have all been introduced to St Helena in the last 510 years, and all are species that are known to be invasive on other islands. The species responsible for taking the largest proportion of eggs was the domestic cat Felis catus , with rats ( Rattus rattus or R. norvegicus) and Common Myna Acridotheres tristis taking smaller proportions. Nest survival varied spatially and was correlated with an index of cat density. No relationship was observed between the number of nesting attempts per pair in a year and predator density. The resulting estimates of productivity were insufficient in some areas to allow stable populations to persist locally. Future work should focus on assessing the population level impacts of current and reduced predator densities to St Helena Plovers, and understanding the influence of resource availability and habitat structure on the densities and impacts of predators. Article in Journal/Newspaper Rattus rattus Cambridge University Press St. Helena ENVELOPE(8.575,8.575,63.621,63.621) Bird Conservation International 23 2 125 135 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Nature and Landscape Conservation Animal Science and Zoology Ecology |
spellingShingle |
Nature and Landscape Conservation Animal Science and Zoology Ecology BURNS, FIONA MCCULLOCH, NEIL SZÉKELY, TAMÁS BOLTON, MARK The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
topic_facet |
Nature and Landscape Conservation Animal Science and Zoology Ecology |
description |
Summary We investigated the impact of introduced predators on the productivity of the St Helena Plover Charadrius sanctaehelenae , a shorebird endemic to the South Atlantic island of St Helena. The nest predator species identified have all been introduced to St Helena in the last 510 years, and all are species that are known to be invasive on other islands. The species responsible for taking the largest proportion of eggs was the domestic cat Felis catus , with rats ( Rattus rattus or R. norvegicus) and Common Myna Acridotheres tristis taking smaller proportions. Nest survival varied spatially and was correlated with an index of cat density. No relationship was observed between the number of nesting attempts per pair in a year and predator density. The resulting estimates of productivity were insufficient in some areas to allow stable populations to persist locally. Future work should focus on assessing the population level impacts of current and reduced predator densities to St Helena Plovers, and understanding the influence of resource availability and habitat structure on the densities and impacts of predators. |
format |
Article in Journal/Newspaper |
author |
BURNS, FIONA MCCULLOCH, NEIL SZÉKELY, TAMÁS BOLTON, MARK |
author_facet |
BURNS, FIONA MCCULLOCH, NEIL SZÉKELY, TAMÁS BOLTON, MARK |
author_sort |
BURNS, FIONA |
title |
The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
title_short |
The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
title_full |
The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
title_fullStr |
The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
title_full_unstemmed |
The impact of introduced predators on an island endemic, the St Helena Plover, Charadrius sanctaehelenae |
title_sort |
impact of introduced predators on an island endemic, the st helena plover, charadrius sanctaehelenae |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1017/s0959270913000245 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270913000245 |
long_lat |
ENVELOPE(8.575,8.575,63.621,63.621) |
geographic |
St. Helena |
geographic_facet |
St. Helena |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Bird Conservation International volume 23, issue 2, page 125-135 ISSN 0959-2709 1474-0001 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0959270913000245 |
container_title |
Bird Conservation International |
container_volume |
23 |
container_issue |
2 |
container_start_page |
125 |
op_container_end_page |
135 |
_version_ |
1798853797138661376 |