Population structure and origins of Purple Sandpipers Calidris maritima in north Norway
1992, and compared with samples from Troms county in November 1988 to describe the population structure in north Norway in terms of age and sex classes, and to determine the origins of these wintering birds. The overall percentage of first-year birds was 35 % at Varangerfjorden, higher than that in...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.567.9557 2023-05-15T14:57:15+02:00 Population structure and origins of Purple Sandpipers Calidris maritima in north Norway During Winter Karl-birger Strann Ron W. Summers Rab Rae Ab Dx The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.9557 http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.9557 http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf text ftciteseerx 2016-01-08T12:21:11Z 1992, and compared with samples from Troms county in November 1988 to describe the population structure in north Norway in terms of age and sex classes, and to determine the origins of these wintering birds. The overall percentage of first-year birds was 35 % at Varangerfjorden, higher than that in Troms (21%). However, there may have been biases in the catches at Varangerfjorden, and the percentage in the largest catch was 23 % first-year. In both regions, the percentage of first-year birds varied among sites, indicating age segregation. There was a higher percentage of males than females in the first-year population at Varangerfjorden and in both age classes at Troms. The wing and bill lengths of the different age/sex classes at Varangerfjorden and Troms were similar, indicating largely similar origins. Comparison of bill and wing lengths of wintering birds with samples from the breeding grounds supports results from ringing data that the wintering birds come predominantly from Russia, but with some also from Svalbard. The Purple Sandpiper Calidris maritima breeds in Arctic, sub-Arctic and alpine regions from Canada in the west to northern Russia in the east, including Greenland Text Arctic Calidris maritima Greenland North Norway Purple Sandpiper Svalbard Varangerfjord* Varangerfjorden Troms Unknown Arctic Canada Greenland Norway Svalbard Varangerfjorden ENVELOPE(30.000,30.000,70.000,70.000) |
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ftciteseerx |
language |
English |
description |
1992, and compared with samples from Troms county in November 1988 to describe the population structure in north Norway in terms of age and sex classes, and to determine the origins of these wintering birds. The overall percentage of first-year birds was 35 % at Varangerfjorden, higher than that in Troms (21%). However, there may have been biases in the catches at Varangerfjorden, and the percentage in the largest catch was 23 % first-year. In both regions, the percentage of first-year birds varied among sites, indicating age segregation. There was a higher percentage of males than females in the first-year population at Varangerfjorden and in both age classes at Troms. The wing and bill lengths of the different age/sex classes at Varangerfjorden and Troms were similar, indicating largely similar origins. Comparison of bill and wing lengths of wintering birds with samples from the breeding grounds supports results from ringing data that the wintering birds come predominantly from Russia, but with some also from Svalbard. The Purple Sandpiper Calidris maritima breeds in Arctic, sub-Arctic and alpine regions from Canada in the west to northern Russia in the east, including Greenland |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
During Winter Karl-birger Strann Ron W. Summers Rab Rae Ab Dx |
spellingShingle |
During Winter Karl-birger Strann Ron W. Summers Rab Rae Ab Dx Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
author_facet |
During Winter Karl-birger Strann Ron W. Summers Rab Rae Ab Dx |
author_sort |
During Winter |
title |
Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
title_short |
Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
title_full |
Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
title_fullStr |
Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
title_full_unstemmed |
Population structure and origins of Purple Sandpipers Calidris maritima in north Norway |
title_sort |
population structure and origins of purple sandpipers calidris maritima in north norway |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.9557 http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf |
long_lat |
ENVELOPE(30.000,30.000,70.000,70.000) |
geographic |
Arctic Canada Greenland Norway Svalbard Varangerfjorden |
geographic_facet |
Arctic Canada Greenland Norway Svalbard Varangerfjorden |
genre |
Arctic Calidris maritima Greenland North Norway Purple Sandpiper Svalbard Varangerfjord* Varangerfjorden Troms |
genre_facet |
Arctic Calidris maritima Greenland North Norway Purple Sandpiper Svalbard Varangerfjord* Varangerfjorden Troms |
op_source |
http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.9557 http://blx1.bto.org/pdf/ringmigration/23_2/strann.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766329332700020736 |