Aquatic community characteristics influence th foraging patterns of tree swallows

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

During periods of inclement spring weather, Tree Swallow (Tachycineta bicolor) were observed foraging close to the surface of a series of experimentally manipulated ponds. Censuses of foraging swallows during these period indicated that the use of ponds for foraging was positively affected by earlier additions of nutrients and the removal of fish from the ponds. Collections or emerging insects from these ponds indicated that nutrient additions and the removal of fish greatly increased the numbers of insects emerging from those ponds. The ability of Tree Swallows to exploit local concentrations of food may be critical to their ability to return to the breeding grounds before aerial insects are reliably available.

Original languageEnglish (US)
Pages (from-to)210-213
Number of pages4
JournalCondor
Volume99
Issue number1
DOIs
StatePublished - Jan 1 1997

Keywords

  • Tachycineta bicolor
  • Tree Swallow
  • experimental pond communities
  • foraging
  • trophic cascade

ASJC Scopus subject areas

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

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