Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration
The acquisition of body reserves by migrating shorebirds at specific staging sites is critical for reaching their breeding or wintering grounds. As many North American shorebird populations are declining, major staging sites need to be identified for effective conservation plans. Changes in body mas...
Published in: | Canadian Journal of Zoology |
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crcansciencepubl:10.1139/cjz-2013-0101 2024-06-23T07:55:10+00:00 Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration Turcotte, Yves Lamarre, Jean-François Bêty, Joël 2013 http://dx.doi.org/10.1139/cjz-2013-0101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2013-0101 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2013-0101 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 91, issue 11, page 802-809 ISSN 0008-4301 1480-3283 journal-article 2013 crcansciencepubl https://doi.org/10.1139/cjz-2013-0101 2024-05-24T13:05:54Z The acquisition of body reserves by migrating shorebirds at specific staging sites is critical for reaching their breeding or wintering grounds. As many North American shorebird populations are declining, major staging sites need to be identified for effective conservation plans. Changes in body mass of Semipalmated Plover (Charadrius semipalmatus Bonaparte, 1825) and Semipalmated Sandpiper (Calidris pusilla (L., 1766)) juveniles, as well as length of stay and daily movements by Semipalmated Plover juveniles during fall migration, were studied in the St. Lawrence River Estuary in southern Quebec, Canada. Most juveniles of both species captured early in the migration period weighed less than the estimated mean fat-free mass. Body mass increased steadily in juveniles of both species during staging. Mean body masses of birds captured in our study area were similar to or higher than those of juveniles of both species captured along the North Atlantic coast. Length of stay of radio-tracked Semipalmated Plover juveniles ranged from 2 to 28 days. Body mass at capture and length of stay were negatively associated, suggesting that individuals refuelled before resuming their migration. Overall, these results provide evidence that the St. Lawrence River Estuary is an important staging site for Semipalmated Plover and Semipalmated Sandpiper juveniles. Article in Journal/Newspaper North Atlantic Canadian Science Publishing Bonaparte ENVELOPE(160.833,160.833,-83.083,-83.083) Canada Lawrence River ENVELOPE(-115.002,-115.002,58.384,58.384) Canadian Journal of Zoology 91 11 802 809 |
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Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
The acquisition of body reserves by migrating shorebirds at specific staging sites is critical for reaching their breeding or wintering grounds. As many North American shorebird populations are declining, major staging sites need to be identified for effective conservation plans. Changes in body mass of Semipalmated Plover (Charadrius semipalmatus Bonaparte, 1825) and Semipalmated Sandpiper (Calidris pusilla (L., 1766)) juveniles, as well as length of stay and daily movements by Semipalmated Plover juveniles during fall migration, were studied in the St. Lawrence River Estuary in southern Quebec, Canada. Most juveniles of both species captured early in the migration period weighed less than the estimated mean fat-free mass. Body mass increased steadily in juveniles of both species during staging. Mean body masses of birds captured in our study area were similar to or higher than those of juveniles of both species captured along the North Atlantic coast. Length of stay of radio-tracked Semipalmated Plover juveniles ranged from 2 to 28 days. Body mass at capture and length of stay were negatively associated, suggesting that individuals refuelled before resuming their migration. Overall, these results provide evidence that the St. Lawrence River Estuary is an important staging site for Semipalmated Plover and Semipalmated Sandpiper juveniles. |
format |
Article in Journal/Newspaper |
author |
Turcotte, Yves Lamarre, Jean-François Bêty, Joël |
spellingShingle |
Turcotte, Yves Lamarre, Jean-François Bêty, Joël Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
author_facet |
Turcotte, Yves Lamarre, Jean-François Bêty, Joël |
author_sort |
Turcotte, Yves |
title |
Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
title_short |
Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
title_full |
Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
title_fullStr |
Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
title_full_unstemmed |
Staging ecology of Semipalmated Plover ( Charadrius semipalmatus) and Semipalmated Sandpiper ( Calidris pusilla) juveniles in the St. Lawrence River Estuary during fall migration |
title_sort |
staging ecology of semipalmated plover ( charadrius semipalmatus) and semipalmated sandpiper ( calidris pusilla) juveniles in the st. lawrence river estuary during fall migration |
publisher |
Canadian Science Publishing |
publishDate |
2013 |
url |
http://dx.doi.org/10.1139/cjz-2013-0101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2013-0101 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2013-0101 |
long_lat |
ENVELOPE(160.833,160.833,-83.083,-83.083) ENVELOPE(-115.002,-115.002,58.384,58.384) |
geographic |
Bonaparte Canada Lawrence River |
geographic_facet |
Bonaparte Canada Lawrence River |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Canadian Journal of Zoology volume 91, issue 11, page 802-809 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2013-0101 |
container_title |
Canadian Journal of Zoology |
container_volume |
91 |
container_issue |
11 |
container_start_page |
802 |
op_container_end_page |
809 |
_version_ |
1802647635233865728 |