Vegetation of six Carolina bays in Maryland

Vascular plant communities in six Carolina bays in Maryland were classified using stratified-random plot sampling of presence and cover in conjunction with Bray-Curtis Polar Ordination and Sorensen's Index of Dissimilarity. Species diversity and annual cover differences also were analyzed durin...

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Bibliographic Details
Published in:Castanea 1990-03, Vol.55 (1), p.1-21
Main Authors: Tyndall, R.W. (Maryland Department of Natural Resources, Annapolis, MD), McCarthy, K.A, Ludwig, J.C, Rome, A
Format: Article
Language:English
Subjects:
ANALISIS DE DATOS
ANALYSE DE DONNEES
BOSQUES
Coastal plains
COMMUNAUTE VEGETALE
Community structure
COMUNIDADES VEGETALES
DATA ANALYSIS
DIVERSITY
Endangered species
ESPECE
ESPECIES
FORESTS
FORET
Growing seasons
MARYLAND
PLANT COMMUNITIES
Plants
Soil resources
SPECIES
Species diversity
vascular plants
VEGETACION
VEGETATION
VEGETATION TYPES
Water depth
zonal community types
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Summary:Vascular plant communities in six Carolina bays in Maryland were classified using stratified-random plot sampling of presence and cover in conjunction with Bray-Curtis Polar Ordination and Sorensen's Index of Dissimilarity. Species diversity and annual cover differences also were analyzed during the two-year study period of 1987-1988. Collectively, five zonal community types were identified in the ground layer. The most frequent type, dominated by Leucothoe racemosa Gray, was restricted to the forested perimeter. The Carex walteriana Bailey (C. striata Michx.) community occurred as an interlying zone near or contiguous with the forested perimeter and as the sole non-perimeter community. Panicum hemitomon Schult. only occurred as a narrow band near or adjacent to the forested perimeter. Rhexia virginica L. and P. verrucosum Muhl. communities were restricted to the innermost non-perimeter zone. Species diversity and annual differences in cover generally increased from perimeter to center. Leucothoe racemosa, P. hemitomon, and C. walteriana communities, restricted to drier portions of the gradient, had lower values for these parameters than the more mesic R. virginica and P. verrucosum communities.
ISSN:0008-7475
1938-4386