Microsite abundance and distribution of woody seedlings in a South Carolina cypress-tupelo swamp

Journal Article · Thu May 01 04:00:00 EDT 1986 · Am. J. Public Health; (United States)

DOI:https://doi.org/10.2307/2425869· OSTI ID:5493778

Huenneke, L F; Sharitz, R R

At least 16 types of microsites or substrates for vascular plant seedlings can be distinguished in bald cypress-water tupelo (Taxodium distichum-Nyssa aquatica) swamps. We measured the relative abundances of these microsite types, and the distribution of woody seedlings on them, in two riverine swamp forests on the Savannah River floodplain, South Carolina. Microsite abundances in a little disturbed forest differed significantly from those in a more open stand which had experienced much recent sediment deposition from upstream erosion, as well as higher water temperatures. Woody seedlings were distributed nonrandomly among microsite types (i.e., not in proportion to the abundance of a given microsite type). There were significant differences in microsite distribution patterns among growth forms (tree spp. vs. shrubs vs. vines) and among species within growth form. Many human activities may alter substrate nature and abundance in a wetland, thus indirectly altering the abundance and species composition of seedling recruitment.

• Research Organization: Savannah River Ecology Lab., Aiken, SC
• DOE Contract Number: AC09-76SR00819
• OSTI ID: 5493778
• Journal Information: Am. J. Public Health; (United States), Journal Name: Am. J. Public Health; (United States) Vol. 76:5; ISSN AJHEA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AQUATIC ECOSYSTEMS
DISTRIBUTION
ECOSYSTEMS
FEDERAL REGION IV
GERMINATION
NORTH AMERICA
PLANTS
SEEDLINGS
SOUTH CAROLINA
SWAMPS
TERRESTRIAL ECOSYSTEMS
TREES
USA
WETLANDS