Bogs in the United States are mostly found in the glaciated northeast and Great Lakes regions (northern bogs) but also in the southeast (pocosins). Guiry, Michael D. "How many species of algae are there?" This results in a "dead zone" where animals cannot live. Marshes are wetlands that flood with water and are dominated by plants adapted to wet soils. Mangrove swamps are a type of shrub swamp dominated by mangroves that covers vast expanses of southern Florida. Less than three percent of our planets water is freshwater, and less than half of that is available as a liquid; the rest is locked away as ice in polar caps and glaciers. As a result, bogs are low in the nutrients needed for plant growth, a condition that is enhanced by acid forming peat mosses. When periwinkles move up and down the grass blades, they remove excess salt. Uzarski, in Encyclopedia of Inland Waters, 2009. Aquatic and Marine Biomes - Introductory Biology: Evolutionary and Marshes recharge groundwater supplies and moderate streamflow by providing water to streams. With low salinity in the water, these bodies support a variety of plant and animal life, including fish, amphibians, reptiles, mammals, and birds. Shoreline plantslike bergamot, river bulrush, and bog birchare not technically aquatic plants but require close proximity to freshwater to survive. Red jointed fiddler crabs are easy to find at low tide. Non-Tidal Marshes Storm surges have no marshy "sponge" to absorb the water and wind of the hurricane, and coastal communities are especially vulnerable.The fisheries of the Gulf Coast are also reduced as marshes are drained for development. Freshwater marshes are highly productive and therefore can support a large biodiversity of vegetation. Freshwater Ecosystem - National Geographic Society Next, we have a subspecies of the salt marsh snake the Gulf salt marsh snake. Freshwater biomes (article) | Khan Academy "As a result," it says, "many fish populations have declined.". The importance of light in aquatic biomes is central to the communities of organisms found in both freshwater and marine ecosystems because it controls productivity through photosynthesis. Tidal freshwater marshes, however, are fed by freshwater streams and do not have a large salt content. Bogs serve an important ecological function in preventing downstream flooding by absorbing precipitation.
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