Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya
The arctic tern (Sterna paradisaea) is a ubiquitous migratory seabird of the High Arctic, currently thought to be in decline in most of the circumpolar world, but surprisingly little is known of its biology at high latitudes. We studied organ size and nutrient reserves of arctic terns breeding besid...
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2020
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ftdoajarticles:oai:doaj.org/article:567ae12db53844f1931d0affdb63c788 2023-05-15T14:14:32+02:00 Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya Julia E. Baak Jennifer F. Provencher Mark L. Mallory 2020-01-01T00:00:00Z https://doi.org/10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2020.1827577 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 596-604 (2020) arctic charadriiformes gizzard lipid reserves protein Environmental sciences GE1-350 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.1080/15230430.2020.1827577 2022-12-31T13:41:17Z The arctic tern (Sterna paradisaea) is a ubiquitous migratory seabird of the High Arctic, currently thought to be in decline in most of the circumpolar world, but surprisingly little is known of its biology at high latitudes. We studied organ size and nutrient reserves of arctic terns breeding beside a High Arctic polynya in Nunavut, Canada, from their arrival at the colony into the chick-rearing period. Both males and females had a decrease in gizzard size through breeding, with gizzard mass during chick-rearing 39 percent lower than on arrival at the breeding grounds. Through the duration of the breeding season, heart, liver, and small intestine showed little change, but females had higher fat and protein stores than males. Terns from this colony likely have increasing fat levels and high body condition due to proximity to a highly productive polynya, where terns appear to gain more energy than they expend during foraging trips. This suggests that though terns at this colony may be near the northern limit of their range, local conditions have a strong impact on organ and nutrient reserve dynamics of these arctic seabirds. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Arctic tern Nunavut Sterna paradisaea Directory of Open Access Journals: DOAJ Articles Arctic Nunavut Canada Arctic, Antarctic, and Alpine Research 52 1 596 604 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
arctic charadriiformes gizzard lipid reserves protein Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
arctic charadriiformes gizzard lipid reserves protein Environmental sciences GE1-350 Ecology QH540-549.5 Julia E. Baak Jennifer F. Provencher Mark L. Mallory Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
topic_facet |
arctic charadriiformes gizzard lipid reserves protein Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
The arctic tern (Sterna paradisaea) is a ubiquitous migratory seabird of the High Arctic, currently thought to be in decline in most of the circumpolar world, but surprisingly little is known of its biology at high latitudes. We studied organ size and nutrient reserves of arctic terns breeding beside a High Arctic polynya in Nunavut, Canada, from their arrival at the colony into the chick-rearing period. Both males and females had a decrease in gizzard size through breeding, with gizzard mass during chick-rearing 39 percent lower than on arrival at the breeding grounds. Through the duration of the breeding season, heart, liver, and small intestine showed little change, but females had higher fat and protein stores than males. Terns from this colony likely have increasing fat levels and high body condition due to proximity to a highly productive polynya, where terns appear to gain more energy than they expend during foraging trips. This suggests that though terns at this colony may be near the northern limit of their range, local conditions have a strong impact on organ and nutrient reserve dynamics of these arctic seabirds. |
format |
Article in Journal/Newspaper |
author |
Julia E. Baak Jennifer F. Provencher Mark L. Mallory |
author_facet |
Julia E. Baak Jennifer F. Provencher Mark L. Mallory |
author_sort |
Julia E. Baak |
title |
Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
title_short |
Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
title_full |
Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
title_fullStr |
Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
title_full_unstemmed |
Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya |
title_sort |
changes in organ size and nutrient reserves of arctic terns (sterna paradisaea) breeding near a high arctic polynya |
publisher |
Taylor & Francis Group |
publishDate |
2020 |
url |
https://doi.org/10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 |
geographic |
Arctic Nunavut Canada |
geographic_facet |
Arctic Nunavut Canada |
genre |
Antarctic and Alpine Research Arctic Arctic Arctic tern Nunavut Sterna paradisaea |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Arctic tern Nunavut Sterna paradisaea |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 596-604 (2020) |
op_relation |
http://dx.doi.org/10.1080/15230430.2020.1827577 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 |
op_doi |
https://doi.org/10.1080/15230430.2020.1827577 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
52 |
container_issue |
1 |
container_start_page |
596 |
op_container_end_page |
604 |
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1766286950209159168 |