Incubation Schedules Among Four Species of Calidridine Sandpipers at Barrow, Alaska

Incubation by four species of Calidridine sandpipers at Barrow, Alaska, was analyzed by telemetric nest temperature recordings, and by direct observation during three field seasons. In the pectoral sandpiper, Calidris melanotos, only the female tends the nest, whereas both sexes share in incubation...

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Bibliographic Details
Main Author: Norton,David W.
Other Authors: TUNDRA BIOME ANALYSIS OF ECOSYSTEMS COLLEGE ALASKA
Format: Text
Language:English
Published: 1971
Subjects:
Anatomy and Physiology
*REPRODUCTION(PHYSIOLOGY)
*ALASKA
BIRDS
EMBRYOS
EGGS
PERIODIC VARIATIONS
BIOLOGICAL RHYTHMS
TEMPERATURE
WEATHER
CLIMATOLOGY
INCUBATION
Barrow
Dunlin
Alaska
Online Access:http://www.dtic.mil/docs/citations/AD0727579
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0727579
Description
Summary:Incubation by four species of Calidridine sandpipers at Barrow, Alaska, was analyzed by telemetric nest temperature recordings, and by direct observation during three field seasons. In the pectoral sandpiper, Calidris melanotos, only the female tends the nest, whereas both sexes share in incubation in the dunlin, C. alpina, Baird's sandpiper, C. bairdii, and the semipalmated sandpiper, C. pusilla. Both the single-sex incubation system of melanotos and the two-sex system of the other three species must be organized such that embryos within each clutch develop and hatch simultaneously, despite low ambient temperatures and unpredictable weather. The salient features of incubation schedules among these sandpipers are discussed. Sponsored in part by the National Science Foundation, Washington, D.C. and Alaska Univ., College.

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