Papers in the Biological Sciences

 

Date of this Version

January 1983

Comments

From Cranes of the World by Paul A. Johnsgard (Bloomington, IN: Indiana University Press, 1983; electronic edition: Lincoln, NE, 2008). Copyright © 1983 Paul A. Johnsgard.

Abstract

The reproductive biologies of cranes are surprisingly similar. All crane species are strictly monogamous, have long pair bonds and a prolonged period of juvenile dependency, and are highly territorial during the breeding season. All cranes also have an extremely limited reproductive potential, resulting from their deferred sexual maturity, low clutch size, and limited renesting tendencies following the loss of a clutch or hatched young.



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