Small mammal response to pine-grassland restoration for red-cockaded woodpeckers.
作者： R. L. Lochmiller , S. T. McMurry , G. A. Bukenhofer , R. E. Masters
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摘要: The U.S. Forest Service plans to restore >40,000 ha of the fire-dependent shortleaf pine (Pinus echinata)-grassland community on Ouachita National and potentially >780,000 pine-grassland throughout Southeast benefit en- dangered red-cockaded woodpecker (Picoides borealis). Concern has arisen over impacts large-scale conversion closed-canopy forests open woodlands. We evaluated how an ecosystem approach habitat improvement for affected small mammals. During 2 winters we compared mammal oc- currence abundance in untreated pine-hardwood stands following wildlife stand (WSI; midstory removal), with WSI-treated first, sec- ond, third dormant seasons prescribed fire. Total mam- mals was highest WSI a more direct response (change structure) than Increased species richness diversity second year this study strongly related both No adversely by or Rather, fire-reduced midstory, increased dead debris understory, promoted herbaceous production, woody sprouting. abundance, richness, were lowest stands. White-footed mice (Peromyscus spp.; primarily white-footed mouse (P. Ieucopus)) dominant species, accounting 68% 611 individuals collected. Restoration efforts may be particu- larly beneficial generalist such as P. Ieucopus well specialized spe- cies, golden (Ochrotomys nuttalli) fulvous harvest (Reithrodon- tomys fulvescens) that historically have depended upon habitats. communities enhance reestablishing landscape element present during presettlement times.
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