Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle
Abstract: The Arctic is warming faster than other regions of the Earth. The little auk, or dovekie (Alle alle) as an endemic Arctic organism may be especially prone to climate change. It is a small zooplanktivorous seabird with breeding range restricted to the High Arctic. We modelled current and fu...
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ftdatacite:10.48448/ae8g-er16 2023-05-15T13:16:17+02:00 Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle 3rd World Seabird Conference 2021 Jakubas, Dariusz 2021 https://dx.doi.org/10.48448/ae8g-er16 https://underline.io/lecture/34830-current-and-future-foraging-habitat-niche-of-a-high-arctic-zooplanktivorous-seabird,-the-little-auk-alle-alle unknown Underline Science Inc. Ornithology Environmental Engineering FOS Environmental engineering MediaObject article Conference talk Audiovisual 2021 ftdatacite https://doi.org/10.48448/ae8g-er16 2022-02-09T11:22:26Z Abstract: The Arctic is warming faster than other regions of the Earth. The little auk, or dovekie (Alle alle) as an endemic Arctic organism may be especially prone to climate change. It is a small zooplanktivorous seabird with breeding range restricted to the High Arctic. We modelled current and future distribution of a foraging little auks in one of the most important breeding areas, Svalbard, using a combination of GPS-tracking, satellite remote sensing and data-driven (conditional inference tree) and expert-knowledge (fuzzy logic) based techniques. We characterized environmental conditions (sea surface temperature, sea depth, presence/absence of marginal sea ice zone) at foraging positions of GPS-tracked individuals from three breeding colonies in Svalbard: one 'boreo-Arctic' located at the boundary of Low Arctic and High Arctic zones and two 'high-Arctic' colonies located in the largest breeding aggregations of this species in Svalbard on the west coast of Spitsbergen. The birds from one 'high-Arctic' colony, influenced by cold Arctic water, foraged in the shallow shelf zone near the colony. The birds from the remaining colonies foraged in a wider range of depths, in a higher sea surface temperature zone ('boreo-Arctic') or in the productive but distant marginal sea ice zone (second 'high-Arctic' colony). Given this flexible foraging behaviour and results of studies on their breeding performance, little auks may be temporarily resilient to moderate climate changes. However, our fuzzy logic models of future distribution under scenarios of increased sea surface temperature by 1oC and 2oC SST, predict losses of feeding habitat within the cost-effective range of foraging flights for the majority of little auk colonies in Svalbard. Over longer time scales negative consequences of global warming are inevitable. The actual response of little auks to future environmental conditions will depend on the range of their plasticity and pace of ecosystem changes. Authors: Dariusz Jakubas¹, Katarzyna Wojczulanis-Jakubas¹, Lech Iliszko¹, Hallvard Strøm², Lech Stempniewicz¹ ¹University of Gdansk, ²Norwegian Polar Institute Article in Journal/Newspaper Alle alle Arctic Climate change Dovekie Global warming little auk Norwegian Polar Institute Sea ice Svalbard Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Arctic Svalbard |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ornithology Environmental Engineering FOS Environmental engineering |
spellingShingle |
Ornithology Environmental Engineering FOS Environmental engineering 3rd World Seabird Conference 2021 Jakubas, Dariusz Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
topic_facet |
Ornithology Environmental Engineering FOS Environmental engineering |
description |
Abstract: The Arctic is warming faster than other regions of the Earth. The little auk, or dovekie (Alle alle) as an endemic Arctic organism may be especially prone to climate change. It is a small zooplanktivorous seabird with breeding range restricted to the High Arctic. We modelled current and future distribution of a foraging little auks in one of the most important breeding areas, Svalbard, using a combination of GPS-tracking, satellite remote sensing and data-driven (conditional inference tree) and expert-knowledge (fuzzy logic) based techniques. We characterized environmental conditions (sea surface temperature, sea depth, presence/absence of marginal sea ice zone) at foraging positions of GPS-tracked individuals from three breeding colonies in Svalbard: one 'boreo-Arctic' located at the boundary of Low Arctic and High Arctic zones and two 'high-Arctic' colonies located in the largest breeding aggregations of this species in Svalbard on the west coast of Spitsbergen. The birds from one 'high-Arctic' colony, influenced by cold Arctic water, foraged in the shallow shelf zone near the colony. The birds from the remaining colonies foraged in a wider range of depths, in a higher sea surface temperature zone ('boreo-Arctic') or in the productive but distant marginal sea ice zone (second 'high-Arctic' colony). Given this flexible foraging behaviour and results of studies on their breeding performance, little auks may be temporarily resilient to moderate climate changes. However, our fuzzy logic models of future distribution under scenarios of increased sea surface temperature by 1oC and 2oC SST, predict losses of feeding habitat within the cost-effective range of foraging flights for the majority of little auk colonies in Svalbard. Over longer time scales negative consequences of global warming are inevitable. The actual response of little auks to future environmental conditions will depend on the range of their plasticity and pace of ecosystem changes. Authors: Dariusz Jakubas¹, Katarzyna Wojczulanis-Jakubas¹, Lech Iliszko¹, Hallvard Strøm², Lech Stempniewicz¹ ¹University of Gdansk, ²Norwegian Polar Institute |
format |
Article in Journal/Newspaper |
author |
3rd World Seabird Conference 2021 Jakubas, Dariusz |
author_facet |
3rd World Seabird Conference 2021 Jakubas, Dariusz |
author_sort |
3rd World Seabird Conference 2021 |
title |
Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
title_short |
Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
title_full |
Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
title_fullStr |
Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
title_full_unstemmed |
Current and future foraging habitat niche of a High Arctic zooplanktivorous seabird, the little auk Alle alle |
title_sort |
current and future foraging habitat niche of a high arctic zooplanktivorous seabird, the little auk alle alle |
publisher |
Underline Science Inc. |
publishDate |
2021 |
url |
https://dx.doi.org/10.48448/ae8g-er16 https://underline.io/lecture/34830-current-and-future-foraging-habitat-niche-of-a-high-arctic-zooplanktivorous-seabird,-the-little-auk-alle-alle |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Alle alle Arctic Climate change Dovekie Global warming little auk Norwegian Polar Institute Sea ice Svalbard Spitsbergen |
genre_facet |
Alle alle Arctic Climate change Dovekie Global warming little auk Norwegian Polar Institute Sea ice Svalbard Spitsbergen |
op_doi |
https://doi.org/10.48448/ae8g-er16 |
_version_ |
1766273331202359296 |