The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata
Summary The Spectacled Petrel Procellaria [aequinoctialis] conspicillata only breeds at Inaccessible Island, central South Atlantic Ocean. During the early 1980s the population was estimated to be at most 1,000 pairs, but hundreds of Spectacled Petrels have been killed annually in longline fisheries...
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Cambridge University Press (CUP)
1998
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Online Access: | http://dx.doi.org/10.1017/s0959270900001891 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270900001891 |
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crcambridgeupr:10.1017/s0959270900001891 2024-04-28T08:26:21+00:00 The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata Ryan, Peter G. 1998 http://dx.doi.org/10.1017/s0959270900001891 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270900001891 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Bird Conservation International volume 8, issue 3, page 223-235 ISSN 0959-2709 1474-0001 Nature and Landscape Conservation Animal Science and Zoology Ecology journal-article 1998 crcambridgeupr https://doi.org/10.1017/s0959270900001891 2024-04-02T06:54:59Z Summary The Spectacled Petrel Procellaria [aequinoctialis] conspicillata only breeds at Inaccessible Island, central South Atlantic Ocean. During the early 1980s the population was estimated to be at most 1,000 pairs, but hundreds of Spectacled Petrels have been killed annually in longline fisheries off the east coast of South America since at least 1987. Although the population is characterized by a unique plumage trait, it is still regarded as a subspecies of the White-chinned Petrel P. aequinoctialis . Analysis of calls and playback experiments show that the Spectacled Petrel is vocally distinct from White-chinned Petrels and should be regarded as a valid biological species. It is also slightly smaller and breeds earlier than the White-chinned Petrel. Given its small population size and known mortality on longlines, the Spectacled Petrel is Endangered in terms of IUCN criteria C1 and C2b. Longline fisheries operating off South America should institute measures to reduce seabird by-catch. A survey of the breeding population at Inaccessible Island is required to assess the rate at which the population is decreasing. Article in Journal/Newspaper Inaccessible Island South Atlantic Ocean Cambridge University Press Bird Conservation International 8 3 223 235 |
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Cambridge University Press |
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crcambridgeupr |
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English |
topic |
Nature and Landscape Conservation Animal Science and Zoology Ecology |
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Nature and Landscape Conservation Animal Science and Zoology Ecology Ryan, Peter G. The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
topic_facet |
Nature and Landscape Conservation Animal Science and Zoology Ecology |
description |
Summary The Spectacled Petrel Procellaria [aequinoctialis] conspicillata only breeds at Inaccessible Island, central South Atlantic Ocean. During the early 1980s the population was estimated to be at most 1,000 pairs, but hundreds of Spectacled Petrels have been killed annually in longline fisheries off the east coast of South America since at least 1987. Although the population is characterized by a unique plumage trait, it is still regarded as a subspecies of the White-chinned Petrel P. aequinoctialis . Analysis of calls and playback experiments show that the Spectacled Petrel is vocally distinct from White-chinned Petrels and should be regarded as a valid biological species. It is also slightly smaller and breeds earlier than the White-chinned Petrel. Given its small population size and known mortality on longlines, the Spectacled Petrel is Endangered in terms of IUCN criteria C1 and C2b. Longline fisheries operating off South America should institute measures to reduce seabird by-catch. A survey of the breeding population at Inaccessible Island is required to assess the rate at which the population is decreasing. |
format |
Article in Journal/Newspaper |
author |
Ryan, Peter G. |
author_facet |
Ryan, Peter G. |
author_sort |
Ryan, Peter G. |
title |
The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
title_short |
The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
title_full |
The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
title_fullStr |
The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
title_full_unstemmed |
The taxonomic and conservation status of the Spectacled Petrel Procellaria conspicillata |
title_sort |
taxonomic and conservation status of the spectacled petrel procellaria conspicillata |
publisher |
Cambridge University Press (CUP) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1017/s0959270900001891 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0959270900001891 |
genre |
Inaccessible Island South Atlantic Ocean |
genre_facet |
Inaccessible Island South Atlantic Ocean |
op_source |
Bird Conservation International volume 8, issue 3, page 223-235 ISSN 0959-2709 1474-0001 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0959270900001891 |
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Bird Conservation International |
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8 |
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3 |
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223 |
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235 |
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1797585772822396928 |