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1.  Invasive ants alter foraging and parental behaviors of a
native bird  Introduced species can exert outsized impacts on
native biota through both direct (predation) and indirect
(competition) effects. Ants frequently become established in new
areas after being transported by humans across traditional
biological or geographical barriers, and a prime example of such
establishment is the red imported fire ant (Solenopsis invicta).
Introduced to North America in the 1930's, red imported fire
ants are now firmly established throughout the southeastern
United States. Although these invasive predators can
dramatically impact native arthropods, their effect on
vertebrates through resource competition is essentially unknown.
Using a paired experimental design, we compared patterns of
foraging and rates of provisioning for breeding eastern
bluebirds (Sialia sialis) in unmanipulated (control)