Abstract
Large-scale natural habitat disturbances can play major roles in structuring the distribution of individuals and ecosystems, and can exert substantial selective pressures. The magnitude of these effects depends on the spatial and temporal scale of the disturbance, as well its frequency, intensity, and predictability. In January 1998, the worst ice storm in documented Canadian history struck southern Ontario and Quebec. This storm affected >106 ha of forest, causing widespread damage. One region negatively affected by the storm is home to a large breeding population of Cerulean Warblers, Dendroica cerulea. This population has been studied since 1994, thereby allowing a unique opportunity to examine the effects of a large-scale natural habitat disturbance on the reproductive ecology and behavior of this Neotropical migrant songbird. We addressed two main questions: (1) did Cerulean Warbler reproductive success change after this habitat disturbance, and (2) did the breeding population exhibit a shift in habi...
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