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Table 2 Comparing models hypothesized to explain variation in stopover duration (h) and daily activity (proportion of a day (500–1900 h) spent active) for Red-eyed Vireos at two sites over two years during fall migration on the coast of the Yucatan Peninsula

From: Stopover behavior of Red-eyed Vireos (Vireo olivaceus) during fall migration on the coast of the Yucatan Peninsula

Stopover
behavior metric
Site Model AICc ∆AICc
Duration Isla Contoy Null: y ~ 1 407.90 0.00
Year: y ~ Year 408.11 0.21
Fruit density: y ~ Fruit × Year 412.23 4.33
Body mass: y ~ Mass × Year 413.49 5.59
El Cuyo Null: y ~ 1 597.75 0.00
Year: y ~ Year 598.60 0.85
Fruit density: y ~ Fruit × Year 602.27 4.52
Body mass: y ~ Mass × Year 604.10 6.35
Daily activity El Cuyo Null: y ~ 1 3561.78 7.95
  Year: y ~ Year 3558.58 4.75
  Fruit density: y ~ Fruit × Year 3562.55 8.72
  Body mass: y ~ Mass × Year 3553.83 0.00
  1. The evidence for or against a model was assessed using Akaike’s Information Criterion corrected for small sample size (AICc)
  2. We did not analyze daily activity for birds at the Isla Contoy site because of low sample size