Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta
Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population b...
Published in: | Endangered Species Research |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter-Research
2019
|
Subjects: | |
Online Access: | https://doi.org/10.3354/esr00991 https://doaj.org/article/73b350e4aaa446a39d9ab1bd2f8e25d4 |
id |
ftdoajarticles:oai:doaj.org/article:73b350e4aaa446a39d9ab1bd2f8e25d4 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:73b350e4aaa446a39d9ab1bd2f8e25d4 2023-05-15T18:20:59+02:00 Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta M Pastor-Prieto R Ramos Z Zajková JM Reyes-González ML Rivas PG Ryan J González-Solís 2019-11-01T00:00:00Z https://doi.org/10.3354/esr00991 https://doaj.org/article/73b350e4aaa446a39d9ab1bd2f8e25d4 EN eng Inter-Research https://www.int-res.com/abstracts/esr/v40/p189-206/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00991 https://doaj.org/article/73b350e4aaa446a39d9ab1bd2f8e25d4 Endangered Species Research, Vol 40, Pp 189-206 (2019) Zoology QL1-991 Botany QK1-989 article 2019 ftdoajarticles https://doi.org/10.3354/esr00991 2022-12-31T05:57:43Z Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population breeding on Gough Island (Tristan da Cunha archipelago). We describe adult phenology, habitat preferences and at-sea activity patterns for each phenological phase of the annual cycle and refine current knowledge about its distribution, by using light-level geolocators on 13 adults over 1-3 consecutive years. We also ascertained moulting pattern through stable isotope analysis (SIA) of nitrogen and carbon in feathers from 8 carcasses. On average, adults started their post-breeding migration on 25 December, taking 10 d to reach their non-breeding areas on the South American shelf slope. The pre-breeding migration started around 11 April and took 5 d. From phenological data, we found evidence of carry-over effects between successive breeding periods. The year-round distribution generally coincided with the potential distribution obtained from habitat modelling, except during the non-breeding and pre-laying exodus periods, when birds only used the western areas of the South Atlantic. Moulting occurred during the non-breeding period, when birds spent more time on the water, and results from SIA helped us to distinguish feathers grown around Gough Island from those grown in the non-breeding area. Overall, our results bring important new insights into the spatial ecology of this Endangered seabird, which should help improve conservation strategies in the South Atlantic Ocean. Article in Journal/Newspaper South Atlantic Ocean Directory of Open Access Journals: DOAJ Articles Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Endangered Species Research 40 189 206 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zoology QL1-991 Botany QK1-989 |
spellingShingle |
Zoology QL1-991 Botany QK1-989 M Pastor-Prieto R Ramos Z Zajková JM Reyes-González ML Rivas PG Ryan J González-Solís Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
topic_facet |
Zoology QL1-991 Botany QK1-989 |
description |
Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population breeding on Gough Island (Tristan da Cunha archipelago). We describe adult phenology, habitat preferences and at-sea activity patterns for each phenological phase of the annual cycle and refine current knowledge about its distribution, by using light-level geolocators on 13 adults over 1-3 consecutive years. We also ascertained moulting pattern through stable isotope analysis (SIA) of nitrogen and carbon in feathers from 8 carcasses. On average, adults started their post-breeding migration on 25 December, taking 10 d to reach their non-breeding areas on the South American shelf slope. The pre-breeding migration started around 11 April and took 5 d. From phenological data, we found evidence of carry-over effects between successive breeding periods. The year-round distribution generally coincided with the potential distribution obtained from habitat modelling, except during the non-breeding and pre-laying exodus periods, when birds only used the western areas of the South Atlantic. Moulting occurred during the non-breeding period, when birds spent more time on the water, and results from SIA helped us to distinguish feathers grown around Gough Island from those grown in the non-breeding area. Overall, our results bring important new insights into the spatial ecology of this Endangered seabird, which should help improve conservation strategies in the South Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
M Pastor-Prieto R Ramos Z Zajková JM Reyes-González ML Rivas PG Ryan J González-Solís |
author_facet |
M Pastor-Prieto R Ramos Z Zajková JM Reyes-González ML Rivas PG Ryan J González-Solís |
author_sort |
M Pastor-Prieto |
title |
Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
title_short |
Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
title_full |
Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
title_fullStr |
Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
title_full_unstemmed |
Spatial ecology, phenological variability and moulting patterns of the Endangered Atlantic petrel Pterodroma incerta |
title_sort |
spatial ecology, phenological variability and moulting patterns of the endangered atlantic petrel pterodroma incerta |
publisher |
Inter-Research |
publishDate |
2019 |
url |
https://doi.org/10.3354/esr00991 https://doaj.org/article/73b350e4aaa446a39d9ab1bd2f8e25d4 |
long_lat |
ENVELOPE(140.900,140.900,-66.735,-66.735) ENVELOPE(159.367,159.367,-81.633,-81.633) |
geographic |
Tristan Gough |
geographic_facet |
Tristan Gough |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Endangered Species Research, Vol 40, Pp 189-206 (2019) |
op_relation |
https://www.int-res.com/abstracts/esr/v40/p189-206/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00991 https://doaj.org/article/73b350e4aaa446a39d9ab1bd2f8e25d4 |
op_doi |
https://doi.org/10.3354/esr00991 |
container_title |
Endangered Species Research |
container_volume |
40 |
container_start_page |
189 |
op_container_end_page |
206 |
_version_ |
1766199972254973952 |