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Effects of extended photoperiod on sandhill crane reproduction

By:
,
Edited by:
Don A. Wood

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Abstract

Photoperiod studies were conducted with greater sandhill cranes (Grus canadensis tabida) from 1969 to 1972 and from 1982 to 1987 at the Patuxent Wildlife Research Center, Maryland. When housed indoors and exposed to long photoperiods, males produced semen during winter. When exposed to artificially extended photoperiods during spring in outdoor pens, females apparently laid earlier in the year and laid more eggs than they would have without the added light. Cranes did not exhibit any signs of photorefractory response to extended photoperiods.

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Effects of extended photoperiod on sandhill crane reproduction
Series number:
12
Year Published:
1992
Language:
English
Publisher:
Florida Game and Fresh Water Fish Commission.
Contributing office(s):
Patuxent Wildlife Research Center
Description:
v, 305
Larger Work Type:
Book
Larger Work Subtype:
Other Government Series
Larger Work Title:
Proceedings of the 1988 North American Crane Workshop
First page:
149
Last page:
159