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1 March 2011 Ovenbird (Seiurus aurocapilla) Demography and Nest-Site Selection in Response to Single-Tree Selection Silviculture in a Northern Hardwood Managed Forest Landscape
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Abstract

Ovenbird (Seiurus aurocapilla) demography and nest-site selection were examined in mature tolerant hardwood stands and stands at 3 stages of recovery (1–5, 10–15, and 20–25 y) following single-tree selection in the continuously forested landscape of Algonquin Provincial Park, central Ontario. This is one of a few studies to provide evidence of these responses in a continuously forested landscape. No differences in nesting success or finite rates of increase were detected among treatments. Ovenbirds were more selective of nest sites with deep leaf-litter and basal areas with a greater proportion of larger trees in recently harvested stands than in other stages of recovery. By 20–25 y post-harvest, most nest-site and random-plot microhabitat parameters did not differ. During the study, Algonquin Provincial Park was designated as a sink, probably due to heavy mast production in 2006, after which some mast-consuming small mammal populations increased by 9-fold, dramatically increasing rates of nest predation. Single-tree selection did not appear to affect ovenbird per capita productivity among stages of forest recovery, and by 20–25 y post-harvest many structural features of the forest had returned to pre-harvest conditions. Thus, in Algonquin Provincial Park, single-tree selection appears to be appropriate for maintaining sufficient ovenbird nest-site features by the end of the first cutting cycle. However, future source-sink modeling of this landscape should consider the influence of resource-pulse dynamics as an important parameter and track changes over the long term, to determine how sustainable populations of ovenbirds are within this region.

John Paul Leblanc, Dawn M. Burke, and Erica Nol "Ovenbird (Seiurus aurocapilla) Demography and Nest-Site Selection in Response to Single-Tree Selection Silviculture in a Northern Hardwood Managed Forest Landscape," Ecoscience 18(1), (1 March 2011). https://doi.org/10.2980/18-1-3381
Received: 17 May 2010; Accepted: 29 November 2010; Published: 1 March 2011
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