Variation in the Timing of Breeding and Molt of the Lapland Longspur (Calcarius lapponicus) in Alaska, with Relation to Differences in Latitude

The synchrony of events in the annual breeding and molt cycles of Lapland longspur is less marked on Amchitka than at more northern areas, indicating flexibility in this adaptation to life. Breeding activities peak about 15 days later at Amchitka than at Cape Thompson. The molting period is prolonge...

Full description

Bibliographic Details
Published in:BioScience
Main Authors: Williamson, F. S. L., Emison, W. B.
Format: Text
Language:English
Published: Oxford University Press 1971
Subjects:
Symposium on Amchitka Island Bioenvironmental Studies
Amchitka
Amchitka Island
Alaska
Lapland
Online Access:http://bioscience.oxfordjournals.org/cgi/content/short/21/12/701
https://doi.org/10.2307/1295752
Description
Summary:The synchrony of events in the annual breeding and molt cycles of Lapland longspur is less marked on Amchitka than at more northern areas, indicating flexibility in this adaptation to life. Breeding activities peak about 15 days later at Amchitka than at Cape Thompson. The molting period is prolonged in the Amchitka population but individual molts require about 50 to 60 days, as in northern areas.

Similar Items