Evidence of Food-Based Competiton Among Passerine Migrants During Stopover
Document Type
Article
Publication Date
1-1-1991
Department
Biological Sciences
School
Biological, Environmental, and Earth Sciences
Abstract
Local concentrations of migrating, fat-depleted birds with similar diets can lead to increased competition for food at a time when energy demand is high. Results of a predator-exclosure experiment indicate that intercontinental passerine migrants depress food abundance during stopover following migration across the Gulf of Mexico. Moreover, migrants that stop when a high number of potential competitors are present replenish energy reserves more slowly than migrants that stop under low density conditions. Competition increase the rate of food depletion and may decrease the probability that a migrant will meet its energetic requirements and complete a successful migration.
Publication Title
Behavioral Ecology and Sociobiology
Volume
28
Issue
2
First Page
85
Last Page
90
Recommended Citation
Moore, F. R.,
Yong, W.
(1991). Evidence of Food-Based Competiton Among Passerine Migrants During Stopover. Behavioral Ecology and Sociobiology, 28(2), 85-90.
Available at: https://aquila.usm.edu/fac_pubs/8768