Abstract
ABSTRACT: Scrub oak barrens were once distributed throughout portions of the northeastern United States. This fire-dependent community covered over 809,000 ha in Pennsylvania during the mid-1900s, but was reduced to about 7132 ha by the late 1900s. Decline of scrub oak barrens is attributed to development, fire suppression, and colonization by fire-intolerant trees. Scrub oak barrens are a state imperiled ecosystem and in recent years, efforts to restore late successional barrens through mechanical cutting and prescribed fire have been initiated in Pennsylvania. Scrub oak barrens support high species richness, including several rare or declining species of plants and animals. This ecosystem is also known for supporting rare Lepidoptera (butterfly and moth) species. We used light traps and bait stations to compare Lepidoptera communities in restored and late successional scrub oak barrens in northeastern Pennsylvania. A total of 13,386 individuals were identified, representing 373 species. Nine species are...
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