Reproductive correlates of spring arrival date in the Eastern Kingbird Tyrannus tyrannus

Nathan W. Cooper, Michael T. Murphy, Lucas James Redmond, Amy C. Dolan

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Harsh weather in spring presents energetic challenges to birds during migration and upon reaching the breeding grounds, and yet, birds often arrive well before breeding begins. We studied a population of Eastern Kingbirds in eastern Oregon from 2004 through 2007. Early arriving kingbirds faced the poorest weather conditions, and therefore we predicted that benefits of early arrival must exist to balance the presumed costs. Early-arriving kingbirds were more likely to both acquire a high-quality territory and to replace nests after failure. Early-arriving birds also bred early, and early breeding led to larger clutches and greater production of young. Early-arriving males also sired more extra-pair young than later arrivers. Our data suggest that arrival date is in part influenced by individual quality, and that arrival date has reproductive consequences, with the primary benefits of early arrival being the acquisition of a high-quality territory, early breeding, and increased probability of replacing failed initial nests.

Original languageEnglish (US)
Pages (from-to)143-152
Number of pages10
JournalJournal of Ornithology
Volume152
Issue number1
DOIs
StatePublished - Jan 1 2011

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birds
breeding
weather
nests
breeding sites
breeds
Tyrannus tyrannus

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

Cite this

Cooper, Nathan W. ; Murphy, Michael T. ; Redmond, Lucas James ; Dolan, Amy C. / Reproductive correlates of spring arrival date in the Eastern Kingbird Tyrannus tyrannus. In: Journal of Ornithology. 2011 ; Vol. 152, No. 1. pp. 143-152.
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Reproductive correlates of spring arrival date in the Eastern Kingbird Tyrannus tyrannus. / Cooper, Nathan W.; Murphy, Michael T.; Redmond, Lucas James; Dolan, Amy C.

In: Journal of Ornithology, Vol. 152, No. 1, 01.01.2011, p. 143-152.

Research output: Contribution to journalArticle

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