Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk
Reproduction is a demanding phase of bird's life cycle and imposes various physiological challenges. Increasing oxidative stress (OS) has been proposed as one of the costs associated with reproduction. In this study, we investigate the level of OS in a small Arctic seabird, the little auk Alle...
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Online Access: | https://doi.org/10.1111/jav.01702 https://doaj.org/article/8c1aea38145045ebb1fa9dbf575581e8 |
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ftdoajarticles:oai:doaj.org/article:8c1aea38145045ebb1fa9dbf575581e8 2023-05-15T13:16:19+02:00 Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk Izabela Kulaszewicz Katarzyna Wojczulanis‐Jakubas Dariusz Jakubas 2018-07-01T00:00:00Z https://doi.org/10.1111/jav.01702 https://doaj.org/article/8c1aea38145045ebb1fa9dbf575581e8 EN eng Wiley https://doi.org/10.1111/jav.01702 https://doaj.org/toc/0908-8857 https://doaj.org/toc/1600-048X 1600-048X 0908-8857 doi:10.1111/jav.01702 https://doaj.org/article/8c1aea38145045ebb1fa9dbf575581e8 Journal of Avian Biology, Vol 49, Iss 7, Pp n/a-n/a (2018) dovekie reproductive investments stress level Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 article 2018 ftdoajarticles https://doi.org/10.1111/jav.01702 2022-12-30T19:24:27Z Reproduction is a demanding phase of bird's life cycle and imposes various physiological challenges. Increasing oxidative stress (OS) has been proposed as one of the costs associated with reproduction. In this study, we investigate the level of OS in a small Arctic seabird, the little auk Alle alle in relation to sex and phase of breeding (incubation, chick‐rearing). We also examine whether OS is related to the birds leucocyte profile. We expected increase in OS with the progress of breeding period (due to increasing energetic demands) and higher values in females (due to high initial investments in production of a large egg). Surprisingly, we found higher OS during incubation compared to chick‐rearing period, suggesting that incubation is a highly demanding reproductive phase in terms of oxidative balance. We suggests that those changes may be attributed to changes in hormone levels affecting oxidative status. Also, in contrasts to our expectations, we did not find sex differences in OS throughout the studied periods of breeding. Finally, we found positive relationships between OS level and haematological parameters: heterophils/lymphocytes ratio, number of leucocytes and lymphocytes per 10 000 erythrocytes, suggesting the effect of the oxidative stress on the immunological system. Article in Journal/Newspaper Alle alle Arctic Dovekie little auk Directory of Open Access Journals: DOAJ Articles Arctic Journal of Avian Biology 49 7 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
dovekie reproductive investments stress level Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
dovekie reproductive investments stress level Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 Izabela Kulaszewicz Katarzyna Wojczulanis‐Jakubas Dariusz Jakubas Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
topic_facet |
dovekie reproductive investments stress level Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 |
description |
Reproduction is a demanding phase of bird's life cycle and imposes various physiological challenges. Increasing oxidative stress (OS) has been proposed as one of the costs associated with reproduction. In this study, we investigate the level of OS in a small Arctic seabird, the little auk Alle alle in relation to sex and phase of breeding (incubation, chick‐rearing). We also examine whether OS is related to the birds leucocyte profile. We expected increase in OS with the progress of breeding period (due to increasing energetic demands) and higher values in females (due to high initial investments in production of a large egg). Surprisingly, we found higher OS during incubation compared to chick‐rearing period, suggesting that incubation is a highly demanding reproductive phase in terms of oxidative balance. We suggests that those changes may be attributed to changes in hormone levels affecting oxidative status. Also, in contrasts to our expectations, we did not find sex differences in OS throughout the studied periods of breeding. Finally, we found positive relationships between OS level and haematological parameters: heterophils/lymphocytes ratio, number of leucocytes and lymphocytes per 10 000 erythrocytes, suggesting the effect of the oxidative stress on the immunological system. |
format |
Article in Journal/Newspaper |
author |
Izabela Kulaszewicz Katarzyna Wojczulanis‐Jakubas Dariusz Jakubas |
author_facet |
Izabela Kulaszewicz Katarzyna Wojczulanis‐Jakubas Dariusz Jakubas |
author_sort |
Izabela Kulaszewicz |
title |
Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
title_short |
Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
title_full |
Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
title_fullStr |
Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
title_full_unstemmed |
Breeding phased dependent oxidative balance in a small High Arctic seabird, the little auk |
title_sort |
breeding phased dependent oxidative balance in a small high arctic seabird, the little auk |
publisher |
Wiley |
publishDate |
2018 |
url |
https://doi.org/10.1111/jav.01702 https://doaj.org/article/8c1aea38145045ebb1fa9dbf575581e8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Alle alle Arctic Dovekie little auk |
genre_facet |
Alle alle Arctic Dovekie little auk |
op_source |
Journal of Avian Biology, Vol 49, Iss 7, Pp n/a-n/a (2018) |
op_relation |
https://doi.org/10.1111/jav.01702 https://doaj.org/toc/0908-8857 https://doaj.org/toc/1600-048X 1600-048X 0908-8857 doi:10.1111/jav.01702 https://doaj.org/article/8c1aea38145045ebb1fa9dbf575581e8 |
op_doi |
https://doi.org/10.1111/jav.01702 |
container_title |
Journal of Avian Biology |
container_volume |
49 |
container_issue |
7 |
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1766273500719349760 |