Surprisingly, there are some subtle differences
between these habitats. They are all considered
wetland habitats as they are periodically
inundated with freshwater.
Swamps - generally have slow-moving water and
reside adjacent to rivers or other moving bodies
of water. The level of water in a swamp can vary
considerably with the adjacent river.
Marsh - Also a wetland that is adjacent to a
moving body of water, but tends to not have much
water movement. It also forms a transition between
open bodies of water and dry land.
Bogs - These are wetlands that have a hard
sealed clay soil bottom that prevents water from
seeping out. Water collects in bogs (sometimes
just from precipitation) and sticks around. These
habitats are anoxic and dominated by sphagnum
mosses and shrubs.
Fens - these are groundwater fed wetlands where
a breach in a hard clay pan allows groundwater to
seep up into the depression and form a wetland
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