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Herbivorous insect response to group selection cutting in a southeastern bottomland hardwood forest
- Abstract::
- Malaise 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 significantly 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 significant. We attribute the increased numbers of herbivorous insects to the greater abundance of herbaceous plants available in young gaps.
- Author(s):
- Ulyshen, M.D. , Hanula, J.L. , Horn, S. , Kilgo, J.C. , Moorman, C.E.
- Subject(s):
- forest insects , phytophagous insects , insect communities , species diversity , silvicultural practices , uneven-aged management , canopy gaps , forest habitats , spatial variation , forest succession , lowland forests , hardwood forests , South Carolina
- Description:
- Includes references
- Source:
- Environmental entomology 2005 Apr., v. 34, no. 2
- Language:
- English
- Year:
- 2005
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- File:
- Download [PDF]
- Rights:
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
