Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach
Thirty-one tidewater glacier bays in Spitsbergen Island were visited by yachts in August 2011, 2015, 2016 and 2017. Surface water samples were taken by volunteers, the members of the yacht crews, to measure concentrations of suspended matter, salinity, and temperature. Secchi disc measurements were...
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ftunivsilesia:oai:rebus.us.edu.pl:20.500.12128/13669 2023-05-15T15:06:01+02:00 Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach Dragańska-Deja, Katarzyna Błaszczyk, Małgorzata Deja, Kajetan Węsławski, Jan Marcin Rodak, Jan 2020 https://hdl.handle.net/20.500.12128/13669 https://doi.org/10.24425/ppr.2020.132570 en eng Polish Polar Research Polish Polar Research, vol. 41 no. 1 (2020), s. 69-93 0138-0338 2081-8262 http://hdl.handle.net/20.500.12128/13669 doi:10.24425/ppr.2020.132570 Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ CC-BY-NC-ND Arctic Spitsbergen glacial bays seabirds gulls foraging info:eu-repo/semantics/article 2020 ftunivsilesia https://doi.org/20.500.12128/13669 https://doi.org/10.24425/ppr.2020.132570 2022-12-31T20:13:31Z Thirty-one tidewater glacier bays in Spitsbergen Island were visited by yachts in August 2011, 2015, 2016 and 2017. Surface water samples were taken by volunteers, the members of the yacht crews, to measure concentrations of suspended matter, salinity, and temperature. Secchi disc measurements were used to measure water transparency. A series of photographs along the glacier fronts were taken and used to count seabirds that were present near the glacier cliff. Basic topographic features (depth, presence of a sill, exposure, glacier width) were obtained from sea charts and analysed. The number of preying Black-legged Kittiwakes (Rissa tridactyla; a target species) ranged from zero to over 2000 birds during 89 visits. High concentrations of individuals (above 100) were observed in 20% of the visits, while no birds were recorded in 42% of the visits. There was no statistical correlation between the topographic features of the glacier and bird concentrations. To our present knowledge, Black-legged Kittiwake feeding spots are random and temporary in time in which (or soon after) the juveniles are leaving the colony. They are a recurrent phenomenon related to krill abundance and simultaneous jet-like meltwater discharges. Article in Journal/Newspaper Arctic Black-legged Kittiwake Polar Research rissa tridactyla Tidewater Spitsbergen The Repository of the University of Silesia (RE-BUŚ) Arctic |
institution |
Open Polar |
collection |
The Repository of the University of Silesia (RE-BUŚ) |
op_collection_id |
ftunivsilesia |
language |
English |
topic |
Arctic Spitsbergen glacial bays seabirds gulls foraging |
spellingShingle |
Arctic Spitsbergen glacial bays seabirds gulls foraging Dragańska-Deja, Katarzyna Błaszczyk, Małgorzata Deja, Kajetan Węsławski, Jan Marcin Rodak, Jan Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
topic_facet |
Arctic Spitsbergen glacial bays seabirds gulls foraging |
description |
Thirty-one tidewater glacier bays in Spitsbergen Island were visited by yachts in August 2011, 2015, 2016 and 2017. Surface water samples were taken by volunteers, the members of the yacht crews, to measure concentrations of suspended matter, salinity, and temperature. Secchi disc measurements were used to measure water transparency. A series of photographs along the glacier fronts were taken and used to count seabirds that were present near the glacier cliff. Basic topographic features (depth, presence of a sill, exposure, glacier width) were obtained from sea charts and analysed. The number of preying Black-legged Kittiwakes (Rissa tridactyla; a target species) ranged from zero to over 2000 birds during 89 visits. High concentrations of individuals (above 100) were observed in 20% of the visits, while no birds were recorded in 42% of the visits. There was no statistical correlation between the topographic features of the glacier and bird concentrations. To our present knowledge, Black-legged Kittiwake feeding spots are random and temporary in time in which (or soon after) the juveniles are leaving the colony. They are a recurrent phenomenon related to krill abundance and simultaneous jet-like meltwater discharges. |
format |
Article in Journal/Newspaper |
author |
Dragańska-Deja, Katarzyna Błaszczyk, Małgorzata Deja, Kajetan Węsławski, Jan Marcin Rodak, Jan |
author_facet |
Dragańska-Deja, Katarzyna Błaszczyk, Małgorzata Deja, Kajetan Węsławski, Jan Marcin Rodak, Jan |
author_sort |
Dragańska-Deja, Katarzyna |
title |
Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
title_short |
Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
title_full |
Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
title_fullStr |
Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
title_full_unstemmed |
Tidewater glaciers as feeding spots for the Black-legged Kittiwake (Rissa tridactyla): A citizen science approach |
title_sort |
tidewater glaciers as feeding spots for the black-legged kittiwake (rissa tridactyla): a citizen science approach |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.12128/13669 https://doi.org/10.24425/ppr.2020.132570 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Black-legged Kittiwake Polar Research rissa tridactyla Tidewater Spitsbergen |
genre_facet |
Arctic Black-legged Kittiwake Polar Research rissa tridactyla Tidewater Spitsbergen |
op_relation |
Polish Polar Research Polish Polar Research, vol. 41 no. 1 (2020), s. 69-93 0138-0338 2081-8262 http://hdl.handle.net/20.500.12128/13669 doi:10.24425/ppr.2020.132570 |
op_rights |
Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.12128/13669 https://doi.org/10.24425/ppr.2020.132570 |
_version_ |
1766337686763732992 |