Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland
Daily counts and conservative estimates of turn-over showed that at least 3,000 Taiga Bean Geese regularly used the Ume River Delta as the major staging site along the Western Flyway (following the west coast of the Gulf of Bothnia) during spring 2003—2008. Counts across all staging sites yielded 2,...
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ftunivlundojs:oai:journals.lub.lu.se:article/22645 2023-05-15T17:25:10+02:00 Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland Vårflyttning av taigasädgås Anser f. fabalis längs den ”västra flyttvägen” i norra Sverige: rastantal 2003—2008 och tidsmässig kulmination i jämförelse med den ”centrala flyttvägen” i Finland Skyllberg, Ulf Nousiainen, Ismo Hansson, Per Bernhardtson, Per Andersson, Östen Nordlund, Mattias 2009-10-01 application/pdf https://journals.lub.lu.se/os/article/view/22645 https://doi.org/10.34080/os.v20.22645 eng eng BirdLife Sweden https://journals.lub.lu.se/os/article/view/22645/20142 https://journals.lub.lu.se/os/article/view/22645 doi:10.34080/os.v20.22645 Copyright (c) 2009 Ulf Skyllberg, Ismo Nousiainen, Per Hansson, Per Bernhardtson, Östen Andersson, Mattias Nordlund Ornis Svecica; Vol. 19 No. 4 (2009); 199-214 Ornis Svecica; Vol 19 Nr 4 (2009); 199-214 2003-2633 1102-6812 monitoring survey population studies staging sites inventering populationsstudier rastplatser info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Research Paper text Fackgranskad uppsats 2009 ftunivlundojs https://doi.org/10.34080/os.v20.22645 2023-03-08T23:27:59Z Daily counts and conservative estimates of turn-over showed that at least 3,000 Taiga Bean Geese regularly used the Ume River Delta as the major staging site along the Western Flyway (following the west coast of the Gulf of Bothnia) during spring 2003—2008. Counts across all staging sites yielded 2,700–3,700 geese in southern Västerbotten and 4,000–4,800 at all sites in Västerbotten and Norrbotten. We estimate that 5,000–6,000 geese currently use the Western Flyway. Migration along the Central Flyway (Ostrobothnia, Finland) culminated on average about ten days earlier, meaning that the vast majority of geese using this flyway had left southern Sweden when the Western Flyway was activated. Counts of active migration on 15 April 2007 indicated that geese arriving in the Ume River Delta in late afternoon had passed Alirs öga, Söderhamn, 340 km to the south, five hours earlier. Assuming the same ground speed (68 km h-1) south of Söderhamn, these geese ought to have left either Lake Östen and/or Lake Kvismaren at sunrise, reaching the staging sites in Västerbotten after a 600–700 km non-stop flight. Article in Journal/Newspaper Norra Sverige Northern Sweden taiga Norrbotten Open Journals at Lund University (OJLU) Västra ENVELOPE(21.867,21.867,66.817,66.817) Ornis Svecica 19 4 199 214 |
institution |
Open Polar |
collection |
Open Journals at Lund University (OJLU) |
op_collection_id |
ftunivlundojs |
language |
English |
topic |
monitoring survey population studies staging sites inventering populationsstudier rastplatser |
spellingShingle |
monitoring survey population studies staging sites inventering populationsstudier rastplatser Skyllberg, Ulf Nousiainen, Ismo Hansson, Per Bernhardtson, Per Andersson, Östen Nordlund, Mattias Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
topic_facet |
monitoring survey population studies staging sites inventering populationsstudier rastplatser |
description |
Daily counts and conservative estimates of turn-over showed that at least 3,000 Taiga Bean Geese regularly used the Ume River Delta as the major staging site along the Western Flyway (following the west coast of the Gulf of Bothnia) during spring 2003—2008. Counts across all staging sites yielded 2,700–3,700 geese in southern Västerbotten and 4,000–4,800 at all sites in Västerbotten and Norrbotten. We estimate that 5,000–6,000 geese currently use the Western Flyway. Migration along the Central Flyway (Ostrobothnia, Finland) culminated on average about ten days earlier, meaning that the vast majority of geese using this flyway had left southern Sweden when the Western Flyway was activated. Counts of active migration on 15 April 2007 indicated that geese arriving in the Ume River Delta in late afternoon had passed Alirs öga, Söderhamn, 340 km to the south, five hours earlier. Assuming the same ground speed (68 km h-1) south of Söderhamn, these geese ought to have left either Lake Östen and/or Lake Kvismaren at sunrise, reaching the staging sites in Västerbotten after a 600–700 km non-stop flight. |
format |
Article in Journal/Newspaper |
author |
Skyllberg, Ulf Nousiainen, Ismo Hansson, Per Bernhardtson, Per Andersson, Östen Nordlund, Mattias |
author_facet |
Skyllberg, Ulf Nousiainen, Ismo Hansson, Per Bernhardtson, Per Andersson, Östen Nordlund, Mattias |
author_sort |
Skyllberg, Ulf |
title |
Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
title_short |
Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
title_full |
Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
title_fullStr |
Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
title_full_unstemmed |
Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland |
title_sort |
spring migration of the taiga bean goose anser f. fabalis along the “western flyway” in northern sweden: numbers in 2003—2008 and timing in comparison with the “central flyway” in finland |
publisher |
BirdLife Sweden |
publishDate |
2009 |
url |
https://journals.lub.lu.se/os/article/view/22645 https://doi.org/10.34080/os.v20.22645 |
long_lat |
ENVELOPE(21.867,21.867,66.817,66.817) |
geographic |
Västra |
geographic_facet |
Västra |
genre |
Norra Sverige Northern Sweden taiga Norrbotten |
genre_facet |
Norra Sverige Northern Sweden taiga Norrbotten |
op_source |
Ornis Svecica; Vol. 19 No. 4 (2009); 199-214 Ornis Svecica; Vol 19 Nr 4 (2009); 199-214 2003-2633 1102-6812 |
op_relation |
https://journals.lub.lu.se/os/article/view/22645/20142 https://journals.lub.lu.se/os/article/view/22645 doi:10.34080/os.v20.22645 |
op_rights |
Copyright (c) 2009 Ulf Skyllberg, Ismo Nousiainen, Per Hansson, Per Bernhardtson, Östen Andersson, Mattias Nordlund |
op_doi |
https://doi.org/10.34080/os.v20.22645 |
container_title |
Ornis Svecica |
container_volume |
19 |
container_issue |
4 |
container_start_page |
199 |
op_container_end_page |
214 |
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1766116489480372224 |