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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Published in:Arctic, Antarctic, and Alpine Research
Main Authors: Julia E. Baak, Jennifer F. Provencher, Mark L. Mallory
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis Group 2020
Subjects:
Online Access:https://doi.org/10.1080/15230430.2020.1827577
https://doaj.org/article/567ae12db53844f1931d0affdb63c788
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:567ae12db53844f1931d0affdb63c788 2023-05-15T14:14:24+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 2020-01-01 https://doi.org/10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2020.1827577 https://doaj.org/article/567ae12db53844f1931d0affdb63c788 undefined Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 596-604 (2020) arctic charadriiformes gizzard lipid reserves protein envir socio Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1080/15230430.2020.1827577 2023-01-22T19:27:09Z 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 Unknown Arctic Canada Nunavut Arctic, Antarctic, and Alpine Research 52 1 596 604
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic arctic
charadriiformes
gizzard
lipid reserves
protein
envir
socio
spellingShingle arctic
charadriiformes
gizzard
lipid reserves
protein
envir
socio
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
envir
socio
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
Canada
Nunavut
geographic_facet Arctic
Canada
Nunavut
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 1523-0430
1938-4246
doi:10.1080/15230430.2020.1827577
https://doaj.org/article/567ae12db53844f1931d0affdb63c788
op_rights undefined
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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