The effect of fine-scale variations in agricultural land use on the abundance of red-winged blackbirds.

R. G. Clark, P. J. Weatherhead

Research output: Contribution to journalArticle

Abstract

Used censuses of breeding Agelaius phoeniceus and of land use to test the prediction that blackbirds should be most abundant where there is a mix of hayfield (breeding habitat) and corn production (feeding habitat) but fewer birds where either habitat predominates. Red-winged blackbird abundance increased in response to increases in both hayfields and cropland. Multivariate analysis including hayfield, cropland, and wetland abundance as explanatory variables explained substantially more variation in blackbird abundance than any of the variables could by themselves. -from Authors

Original languageEnglish (US)
Pages (from-to)1951-1955
Number of pages5
JournalCanadian journal of zoology
Volume64
Issue number9
DOIs
StatePublished - Jan 1 1986
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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