The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar
A surveillance radar in southwest Iceland was recorded by time‐lapse filming in order to monitor the migration pattern of birds departing from or passing Iceland on their way to high‐arctic breeding grounds in late May and early June 1988–1990. An overwhelming majority of the radar echoes from migra...
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Online Access: | http://dx.doi.org/10.1111/j.1474-919x.1993.tb02828.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1993.tb02828.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1993.tb02828.x |
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crwiley:10.1111/j.1474-919x.1993.tb02828.x 2024-09-15T17:52:18+00:00 The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar GUDMUNDSSON, GUDMUNDUR A. 1993 http://dx.doi.org/10.1111/j.1474-919x.1993.tb02828.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1993.tb02828.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1993.tb02828.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 135, issue 2, page 166-176 ISSN 0019-1019 1474-919X journal-article 1993 crwiley https://doi.org/10.1111/j.1474-919x.1993.tb02828.x 2024-07-25T04:22:28Z A surveillance radar in southwest Iceland was recorded by time‐lapse filming in order to monitor the migration pattern of birds departing from or passing Iceland on their way to high‐arctic breeding grounds in late May and early June 1988–1990. An overwhelming majority of the radar echoes from migrating bird flocks departed from Iceland but a few seemed to pass over from further south. Timing of movements and supplementary field observations indicated that mainly four species were involved, i.e. Knot Calidris canutus , Turnstone Arenaria interpres. Sanderling C. alba and Brent Goose Branta bernicla. Departures in late May from stopover sites in Iceland took place mainly in the afternoons, peaking between 1700 and 1900h in all 3 years. The departure intensity was lowest between 0100 and 1300h. Flight paths were generally straight, and the average track direction was towards the northwest (315°), suggesting that the majority of birds were heading for a transglacial migration across the Greenland icecap on their way to breeding grounds in northwest Greenland and northern Canada. Track directions varied with wind, although to a rather small degree, indicating partial drift or pseudodrift. More echoes were registered in easterly winds (tailwinds) and fewer in northerly winds than expected from random. Airspeeds were significantly slower than groundspeeds (average 17.0 and 18.7 m/s, respectively), showing that the birds more often than not benefited from tail wind assistance. Article in Journal/Newspaper Arctic birds Arenaria interpres Branta bernicla Brent goose Calidris canutus Greenland Iceland Sanderling Wiley Online Library Ibis 135 2 166 176 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A surveillance radar in southwest Iceland was recorded by time‐lapse filming in order to monitor the migration pattern of birds departing from or passing Iceland on their way to high‐arctic breeding grounds in late May and early June 1988–1990. An overwhelming majority of the radar echoes from migrating bird flocks departed from Iceland but a few seemed to pass over from further south. Timing of movements and supplementary field observations indicated that mainly four species were involved, i.e. Knot Calidris canutus , Turnstone Arenaria interpres. Sanderling C. alba and Brent Goose Branta bernicla. Departures in late May from stopover sites in Iceland took place mainly in the afternoons, peaking between 1700 and 1900h in all 3 years. The departure intensity was lowest between 0100 and 1300h. Flight paths were generally straight, and the average track direction was towards the northwest (315°), suggesting that the majority of birds were heading for a transglacial migration across the Greenland icecap on their way to breeding grounds in northwest Greenland and northern Canada. Track directions varied with wind, although to a rather small degree, indicating partial drift or pseudodrift. More echoes were registered in easterly winds (tailwinds) and fewer in northerly winds than expected from random. Airspeeds were significantly slower than groundspeeds (average 17.0 and 18.7 m/s, respectively), showing that the birds more often than not benefited from tail wind assistance. |
format |
Article in Journal/Newspaper |
author |
GUDMUNDSSON, GUDMUNDUR A. |
spellingShingle |
GUDMUNDSSON, GUDMUNDUR A. The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
author_facet |
GUDMUNDSSON, GUDMUNDUR A. |
author_sort |
GUDMUNDSSON, GUDMUNDUR A. |
title |
The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
title_short |
The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
title_full |
The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
title_fullStr |
The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
title_full_unstemmed |
The spring migration pattern of arctic birds in southwest Iceland, as recorded by radar |
title_sort |
spring migration pattern of arctic birds in southwest iceland, as recorded by radar |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1474-919x.1993.tb02828.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1993.tb02828.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1993.tb02828.x |
genre |
Arctic birds Arenaria interpres Branta bernicla Brent goose Calidris canutus Greenland Iceland Sanderling |
genre_facet |
Arctic birds Arenaria interpres Branta bernicla Brent goose Calidris canutus Greenland Iceland Sanderling |
op_source |
Ibis volume 135, issue 2, page 166-176 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.1993.tb02828.x |
container_title |
Ibis |
container_volume |
135 |
container_issue |
2 |
container_start_page |
166 |
op_container_end_page |
176 |
_version_ |
1810294365374906368 |