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Length of stay and fat content of migrant semipalmated sandpipers in eastern Maine

Condor

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Abstract

Semipalmated Sandpipers (Calidris pusilla) stop at coastal staging areas in the Canadian maritime provinces and northeastern United States to replenish fat reserves before initiating a nonstop transoceanic flight of at least 3,200 km to wintering areas in South America. The relationship between estimated fat content at capture and length of stay (days between marking and last observation) of Semipalmated Sandpipers at one of these staging areas in eastern Maine was studied during 1980-1982. Total body mass and wing chord length were used to estimate fat content. When data were analyzed by week of initial capture, mean length of stay of both adults and juveniles decreased with increasing fat content. This supports the assumption that resumption of migration is affected by fat content at staging areas for long-distance nonstop flights. However, fat content at capture was a poor predictor of length of stay, which suggests that other factors are more important in determining length of stay.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Length of stay and fat content of migrant semipalmated sandpipers in eastern Maine
Series title:
Condor
Volume
90
Issue:
4
Year Published:
1988
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
824-835
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Condor
First page:
824
Last page:
835