Annual variation in Finch numbers, foraging and food supply on Isla Daphne Major, Galápagos

Abstract

(1) We report some effects of an annually variable and unpredictable rainfall upon Darwin's Finches on the Galápagos. Finch numbers, foraging and food supply were studied on I. Daphne Major in December of 1973 and 1977, and compared. 1973 was the second of two successive wet years and 1977 was a drought year.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47731/1/442_2004_Article_BF00346966.pd

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