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Article: EXPLOITATION OF A SEASONAL RESOURCE BY NONBREEDING PLAIN AND WHITE-CROWNED PIGEONS: IMPLICATIONS FOR CONSERVATION OF TROPICAL DRY FORESTS.(Statistical Data Included)
- Article from:
- Wilson Bulletin
- Article date:
- March 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 Wilson Ornithological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ALLAN M. STRONG [1,2,4]
MATTHEW D. JOHNSON [1,3]
ABSTRACT.--Columbids often exhibit irregular movement patterns in response to fruit abundance. We tested whether the abundance of nonbreeding Plain (Columbia inornata) and White-crowned (C. leucocephala) pigeons was correlated with Thrinax parviflora fruit production in a dry forest in southeastern Jamaica. Monthly, from November to March, we counted the number of pigeons leaving the forest to roost in an adjacent mangrove swamp. Within two days of each roost count, we also counted all fruits on ten T. parviflora trees in the forest. Columbid and fruit counts showed similar patterns of temporal abundance, ...
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