|
Freshwater
wetlands in the eastern United States provide critical
habitats for a variety of rare or uncommon plants and
animals. Although these habitats are biologically rich and
harbour many unique life-forms, they have been destroyed at
an alarming rate during the last century. In Illinois, for
example, scientists estimate that 90-95% of freshwater
wetlands have been lost. In the southeastern US, losses in
the order of 50% or more are typical for many states.
Freshwater wetlands in the southern Appalachians are
concentrated in floodplains or other low-lying areas. These
relatively flat areas were the first sites cleared by
European colonists for farming and urban areas. Although
precise information on the percent of wetlands that have
been lost in western North Carolina are not available,
estimates based on the amount of floodplain habitats that
have been converted into agricultural lands or urban areas
suggest that >95% of the original wetlands are now
gone.
|