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Interactions between macroconsumers (predators and large omnivores) and detritus breakdown on river floodplains are poorly understood, yet important to ecosystem function. We evaluated the impact of macroconsumers on leaf breakdown, macroinvertebrate abundance and biomass, and fungal biomass on a river floodplain using exclosures in 6 wetlands during a severe drought during which the floodplain was...
Increased freshwater and nutrient runoff associated with coastal development is implicated in dramatically altering estuarine communities along eastern US shorelines. We examined effects of three categories of shoreline development on high-marsh environments within Murrells Inlet, South Carolina, USA by measuring sediment nutrients, porewater salinity, plant species diversity, and above- and belowground...
We evaluated habitat changes of tributary (drowned river mouth) wetlands in the upper St. Lawrence River with analysis of pre-and post-regulation water levels and historical vegetation reconstruction from aerial photographs. In addition, the germination response of transplanted wetland soil was compared to understand responses to moist versus saturated hydrology. Typha stem density was sampled in...
Community and environmental gradients within the ecological boundaries of Carolina bay wetlands may provide important information on the interaction between Carolina bays and associated uplands, and may also provide guidance for improved management. We established twelve 30-m transects on the sloping rims of each of six Carolina bays in northeastern South Carolina to characterize the community gradient,...
The term fen has been variously used by peatland ecologists, ground-water hydrologists, and vegetation scientists. The common denominator among all types of fens is recognition of the importance of ground-water discharge, especially mineral-rich ground water, in determining fen hydrology, chemistry, and vegetation, in contrast to wetlands whose characteristics are determined primarily by precipitation...
We present a Hydrogeologic Setting (HGS) framework and the results of subsequent field evaluation for minerotrophic fens throughout New York State, USA. HGS uses a hierarchical approach to link landscape properties to local environmental gradient and, therefore, the plant communities that are associated with calcareous wetlands. This framework was organized into three general classes (i.e., chemical,...
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