Interactions:
Playground of the Wetlands
Muskrats share their habitat with many other organisms and also
provide many benefits to them. When muskrats build lodges or
eating structures they use materials that can be found within
their habitat including submergent and emergent vegetation. By
harvesting these types of plants to eat or to build their
lodges, they essentially make more space available in shallow
water for other plants to grow that otherwise couldn’t have
because of the limiting space. Secondly, by doing this muskrats
help to clear excess vegetation and promote water flow into and
out of their
habitat. This practice also benefits some of the
other organisms living with the muskrats in their environment.
Clearing out areas of emergent vegetation serves several
functions for other organisms such as Canada Geese, snakes,
turtles, frogs, other
water fowl, wetland birds, and
insects.
Abandoned lodges can be used by some of these organisms as homes
such as snakes, turtles, frogs, and the occasional raccoon. When
muskrats clear out areas of emergent vegetation, they provide
nesting sites for water fowl and wetland birds such as
Canadian
Geese, Mallards, cranes, heron, and many other species. However,
muskrats can become destructive if their population is too large
for the habitat and can destroy most of the submergent and
emergent vegetation. This can be prevented through population
regulation by predators.
Muskrats have many
natural predators that can attack via water, land, or air. Some
of these predators include mink, fox, weasels, otters, hawks,
crows, owls,
snapping turtles, raccoons, bald eagles,
largemouth
bass, snakes, other muskrats, and humans. Mink, weasels,
raccoons, and
snapping turtles are some of the more voracious
predators that can cause the most damage to muskrat populations.
The predatory birds tend to aim their attacks at young muskrats
that are traveling on land looking for a new habitat. Muskrats
will also resort to attacking other muskrats, especially pups,
when there are shortages of food, too many muskrats populating
the area, hard living conditions brought about by flooding in
the spring or droughts in the summer, or over territorial
rights. Another predator of muskrats is humans. Humans will use
traps to catch muskrats for their fur or to remove them from an
area that is experiencing problems because of the muskrats. To
learn more about trapping, click
here. Some
of these problems include change in direction of water flow
causing flooding near residential areas or overpopulation of a
habitat which leads to destruction of habitat.
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