Movement Patterns and Stopover Ecology of Wilson's Warblers During Spring Migration on the Lower Colorado River in Southwestern Arizona

Movement Patterns and Stopover Ecology of Wilson's Warblers During Spring Migration on the Lower Colorado River in Southwestern Arizona

We used radio-telemetry to examine fine-scale movement patterns of Wilson's Warblers (Wilsonia pusilla) at a stopover site on the lower Colorado River during spring migration in 2005 and 2006. The overall movements of Wilson's Warblers were restricted to small, localized areas, with an ave...

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Veröffentlicht in:The Condor (Los Angeles, Calif.) Calif.), 2008-11, Vol.110 (4), p.672-681
Hauptverfasser: Paxton, Kristina L, Van Riper, Charles, O'Brien, Chris
Format: Artikel
Sprache:eng
Schlagworte:
Birds
FEATURE ARTICLES
Feature s
Food movements
Food security
lower Colorado River
Mathematical independent variables
migration
movement
Neotropical migrant
Parametric models
Phenology
radio-telemetry
riparian woodlands
Seasonal migration
Vegetation
Warblers
Wildlife habitats
Wilsonia pusilla
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Zusammenfassung:We used radio-telemetry to examine fine-scale movement patterns of Wilson's Warblers (Wilsonia pusilla) at a stopover site on the lower Colorado River during spring migration in 2005 and 2006. The overall movements of Wilson's Warblers were restricted to small, localized areas, with an average linear displacement of only 332 m. Warblers exhibited exploratory behavior characterized by fast, long-distance, directed linear movements during the first and second day after presumed arrival at the stopover site. However, exploration was limited within the overall landscape (
ISSN:0010-5422
1938-5129
DOI:10.1525/cond.2008.8602