Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden
The Whooper Swan Cygnus cygnus was a rare breeding species in Sweden during the early years of the 20th century, when total numbers likely consisted of only 20 pairs. Recent decades have however seen a marked increase in numbers and a spread in the swans’ distribution, with the number of pairs breed...
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Wildfowl and Wetlands Trust
2014
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ftulundlup:oai:lup.lub.lu.se:14d58ab8-3c75-4e27-8613-e2b8510e8c58 2023-05-15T15:59:47+02:00 Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden Nilsson, Leif 2014 https://lup.lub.lu.se/record/14d58ab8-3c75-4e27-8613-e2b8510e8c58 eng eng Wildfowl and Wetlands Trust https://lup.lub.lu.se/record/14d58ab8-3c75-4e27-8613-e2b8510e8c58 scopus:84914153260 Wildfowl; 64, pp 197-206 (2014) ISSN: 0954-6324 Zoology Ecology field feeding population trends contributiontojournal/article info:eu-repo/semantics/article text 2014 ftulundlup 2023-02-01T23:35:01Z The Whooper Swan Cygnus cygnus was a rare breeding species in Sweden during the early years of the 20th century, when total numbers likely consisted of only 20 pairs. Recent decades have however seen a marked increase in numbers and a spread in the swans’ distribution, with the number of pairs breeding in the two northernmost provinces rising from 310 to 2,700 pairs between two main surveys, in 1972–75 and 1997. This paper documents continued long-term (1967–2014) increases in numbers of Whooper Swans breeding and wintering in Sweden, based on data collected by the Swedish Bird Monitoring Programme and during the mid-winter International Waterbird Counts (IWC). Most recent estimates for the country indicate that there are now 5,400 breeding pairs during the summer and close to 10,000 individuals present in normal or mild winters. Article in Journal/Newspaper Cygnus cygnus Whooper Swan Lund University Publications (LUP) |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Zoology Ecology field feeding population trends |
spellingShingle |
Zoology Ecology field feeding population trends Nilsson, Leif Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
topic_facet |
Zoology Ecology field feeding population trends |
description |
The Whooper Swan Cygnus cygnus was a rare breeding species in Sweden during the early years of the 20th century, when total numbers likely consisted of only 20 pairs. Recent decades have however seen a marked increase in numbers and a spread in the swans’ distribution, with the number of pairs breeding in the two northernmost provinces rising from 310 to 2,700 pairs between two main surveys, in 1972–75 and 1997. This paper documents continued long-term (1967–2014) increases in numbers of Whooper Swans breeding and wintering in Sweden, based on data collected by the Swedish Bird Monitoring Programme and during the mid-winter International Waterbird Counts (IWC). Most recent estimates for the country indicate that there are now 5,400 breeding pairs during the summer and close to 10,000 individuals present in normal or mild winters. |
format |
Article in Journal/Newspaper |
author |
Nilsson, Leif |
author_facet |
Nilsson, Leif |
author_sort |
Nilsson, Leif |
title |
Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
title_short |
Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
title_full |
Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
title_fullStr |
Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
title_full_unstemmed |
Long-term trends in numbers of Whooper Swans Cygnus cygnus breeding and wintering in Sweden |
title_sort |
long-term trends in numbers of whooper swans cygnus cygnus breeding and wintering in sweden |
publisher |
Wildfowl and Wetlands Trust |
publishDate |
2014 |
url |
https://lup.lub.lu.se/record/14d58ab8-3c75-4e27-8613-e2b8510e8c58 |
genre |
Cygnus cygnus Whooper Swan |
genre_facet |
Cygnus cygnus Whooper Swan |
op_source |
Wildfowl; 64, pp 197-206 (2014) ISSN: 0954-6324 |
op_relation |
https://lup.lub.lu.se/record/14d58ab8-3c75-4e27-8613-e2b8510e8c58 scopus:84914153260 |
_version_ |
1766395701777924096 |