publication . Other literature type . Article . 2005

A taste for novelty in invading house sparrows, Passer domesticus

Lisa Fitzgerald; Lynn B. Martin;
Open Access
  • Published: 13 Apr 2005
  • Publisher: Oxford University Press (OUP)
Abstract
One of the central questions in invasion biology involves why some introductions succeed and others fail. Although several correlates of invasion success have been identified, patterns alone cannot identify the mechanisms underlying the invasion process. Here, we test the hypothesis that one predictor of invasion success, behavioral flexibility, is different between invading and established populations of the same species of bird. We predicted that neophobia (fear of novelty), a surrogate of behavioral flexibility, would be weaker in an actively invading population (28 years resident; Colon, Republic of Panama) of house sparrows (Passer domesticus) compared to a...
Subjects
free text keywords: Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics, foraging; invasive species; neophobia; range expansion, Foraging, Ecology, Novelty, Population, education.field_of_study, education, Neophobia, medicine.disease, medicine, Vertebrate, biology.animal, biology, Invasive species, Captivity, Panama
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