A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic
The modal clutch size in Arctic Terns breeding on the southern coast of Finland was observed to differ from that reported in previous studies. In 1989 and 1990, the frequency of 3-egg clutches was 60% and 45%, respectively in one study colony, and 61 % and 54% in another colony. In 1990, the frequen...
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BirdLife Finland
1992
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fttsvojs:oai:journal.fi:article/133343 2023-09-05T13:16:56+02:00 A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic Kilpi, M. Lindström, K. Wuorinen, J. D. 1992-07-01 application/pdf https://ornisfennica.journal.fi/article/view/133343 eng eng BirdLife Finland https://ornisfennica.journal.fi/article/view/133343/81889 https://ornisfennica.journal.fi/article/view/133343 Ornis Fennica; Vol 69 Nro 2 (1992); 88–91 Ornis Fennica; Vol. 69 No. 2 (1992); 88–91 0030-5685 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1992 fttsvojs 2023-08-23T23:02:39Z The modal clutch size in Arctic Terns breeding on the southern coast of Finland was observed to differ from that reported in previous studies. In 1989 and 1990, the frequency of 3-egg clutches was 60% and 45%, respectively in one study colony, and 61 % and 54% in another colony. In 1990, the frequency of 3-egg clutches in a pooled sample of 65 nests was 54%. Spring was early in both years and breeding in terns was also early. It is possible that abundant food and early laying explain the switch in modal clutch size, but owing to a lack of data on fish abundance, a conclusive assessment cannot yet be made. Article in Journal/Newspaper Arctic Arctic tern Sterna paradisaea Federation of Finnish Learned Societies: Scientific Journals Online Arctic |
institution |
Open Polar |
collection |
Federation of Finnish Learned Societies: Scientific Journals Online |
op_collection_id |
fttsvojs |
language |
English |
description |
The modal clutch size in Arctic Terns breeding on the southern coast of Finland was observed to differ from that reported in previous studies. In 1989 and 1990, the frequency of 3-egg clutches was 60% and 45%, respectively in one study colony, and 61 % and 54% in another colony. In 1990, the frequency of 3-egg clutches in a pooled sample of 65 nests was 54%. Spring was early in both years and breeding in terns was also early. It is possible that abundant food and early laying explain the switch in modal clutch size, but owing to a lack of data on fish abundance, a conclusive assessment cannot yet be made. |
format |
Article in Journal/Newspaper |
author |
Kilpi, M. Lindström, K. Wuorinen, J. D. |
spellingShingle |
Kilpi, M. Lindström, K. Wuorinen, J. D. A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
author_facet |
Kilpi, M. Lindström, K. Wuorinen, J. D. |
author_sort |
Kilpi, M. |
title |
A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
title_short |
A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
title_full |
A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
title_fullStr |
A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
title_full_unstemmed |
A change in clutch size in the Arctic Tern Sterna paradisaea in the northern Baltic |
title_sort |
change in clutch size in the arctic tern sterna paradisaea in the northern baltic |
publisher |
BirdLife Finland |
publishDate |
1992 |
url |
https://ornisfennica.journal.fi/article/view/133343 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic tern Sterna paradisaea |
genre_facet |
Arctic Arctic tern Sterna paradisaea |
op_source |
Ornis Fennica; Vol 69 Nro 2 (1992); 88–91 Ornis Fennica; Vol. 69 No. 2 (1992); 88–91 0030-5685 |
op_relation |
https://ornisfennica.journal.fi/article/view/133343/81889 https://ornisfennica.journal.fi/article/view/133343 |
_version_ |
1776198328857395200 |