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| | Great Lakes Ecosystem: 1994 Proceedings of the Midwest Oak Savanna Conferences [Williams] |
 | | Allegheny Plateau savannas are maintained by a complex of biotic and abiotic factors that limit woody plant recruitment including heavy browsing of seedlings by deer and small mammals, seasonal microclimatic extremes, spatially limited seed sources, intense competition for light and soil resources with herbaceous plants, and allelopathy (Hough 1945, 1949; Horsley 1977, 1979, 1987). |
 | | The structure and diversity of plant communities associated with Allegheny Plateau savannas, particularly those that occur in larger stream valleys, is poorly known. |
 | | Studies were conducted in a stream valley savanna along Salmon Creek, Allegheny National Forest (Forest County, Pennsylvania), as part of a larger study of riparian community structure in the unglaciated Allegheny Plateau. |
| www.epa.gov /ecopage/upland/oak/oak94/Proceedings/Williams.html (1139 words) |
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