Biology Reference
In-Depth Information
Table 4.1
Plant species richness and predominant species composition and mean (±SE) soil
salinity and organic content (ash-free dry mass) from below shoreline samples at the three marsh
locations within Huntington Beach State Park, SC, USA
Location
Characteristics Huntington Marsh Jetty Pond Sandpiper Pond
Plant species richness 8 5 17
Predominant species
Borrichia frutescens
Salicornia virginica Phragmites australis
Juncus roemerianus Spartina patens Typha domingensis
Soil salinity (ppt) 22.4 ± 3.6
a
27.5 ± 3.2
a
0.0 ± 0.0
b
Soil AFDM (mg/g) 10.5 ± 5.0
a
18.0 ± 4.5
ab
43.2 ± 8.1
b
Superscripts (e.g., a, b) indicate significant subsets determined either by REGW-F (soil AFDM)
or Dunn's multiple comparison procedure (soil salinity)
Fig. 4.6
Nonmetric multidimensional scaling ordination of community samples from three locations
(indicated by
symbols
) at Huntington Beach State Park, South Carolina, USA. Groups identified by
Sorenson's distance and NMDS at a final stress of 10.3 are clustered and identified by
letters
Changes in pore water salinity and above-ground biomass in the winter after
opening the channel were modest or not consistent with significant “after impact”
effects. Pore water salinities rose slightly at Sandpiper Pond (5.9 ± 0.9 ppt) remaining
