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Herbivorous insect response to group selection cutting in a southeastern bottomland hardwood forestAuthor(s): Michael D. Ulyshen; James L. Hanula; Scott Horn; John C. Kilgo; Christopher E. Moorman
Source: Environ. Entomol. 34(2): 395-402
Publication Series: Scientific Journal (JRNL)
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DescriptionMalaise and pitfall traps were used to sample herbivorous insects in canopy gaps created by group-selection cutting in a bottomland hardwood forest in South Carolina. The traps were placed at the centers, edges, and in the forest adjacent to gaps of different sizes (0.13, 0.26, and 0.50 ha) and ages (1 and 7 yr old) during four sampling periods in 2001. Overall, the abundance and species richness of insect herbivores were greater at the centers of young gaps than at the edge of young gaps or in the forest surrounding young gaps. There were no differences in abundance or species richness among old gap locations (i.e., centers, edges, and forest), and we collected signiÞcantly more insects in young gaps than old gaps. The insect communities in old gaps were more similar to the forests surrounding them than young gap communities were to their respective forest locations, but the insect communities in the two forests locations (surrounding young and old gaps) had the highest percent similarity of all. Although both abundance and richness increased in the centers of young gaps with increasing gap size, these differences were not signiÞcant.Weattribute the increased numbers of herbivorous insects to the greater abundance of herbaceous plants available in young gaps.
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CitationUlyshen, Michael D.; Hanula, James L.; Horn, Scott; Kilgo, John C.; Moorman, Christopher E. 2005. Herbivorous insect response to group selection cutting in a southeastern bottomland hardwood forest. Environ. Entomol. 34(2): 395-402
Keywordsselection cutting, uneven-aged silviculture, forest openings, forest management
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