Muskrats
Scientific Name: Ondatra
zibethicus

Description
Muskrats, as adults, are approximately, 18-24 inches
long. They have large webbed rear feet and small front feet used for grasping
and digging. Muskrats weigh around 1-2 pounds. They have a long rudder like tail
which helps them steer as they swim. Fur coloration ranges from light brown to
dark/almost black.Muskrats are typically nocturnal creatures (come out at
night) but can be seen during daylight hours.
Breeding Habits
Muskrats are extremely prolific. Mating occurs up to
6 times in the South and 1-2 times farther north. Gestation period is only 25-30
days. Litter sizes are typical 4-7 in number.
Habitat
Streams, Ponds, Marshes. Anywhere where there is slow moving water and muddy
stream beds.
Damage
Muskrats cause a great deal of economic loss to cranberry
growers and other farmers through their burrowing activities in pond and dike
banks. By digging for roots and in constructing dens, muskrats weaken and
undermine the integrity of banks and dikes.
Home Damage- To be Added Soon
Landscape Damage-
Muskrats can be devastating to the banks of lakes and dikes due to their burrowing.
The burrows eventually collapse and further erode the banks. These tunnels can
also be dangerous to people walking the banks if they happen to break through
the surface and fall into one endangering ankles and legs.
Muskrat Damage Control Methods
Non-lethal Muskrat Control
1. Rip Rapping
Rip rapping is a technique of adding stone to embankments to prevent muskrats
from being able to burrow into the banks. Stone should be added to an embankment
at least three feet below the level of the water. Fencing can also be used
instead of rock.
2. Plants not attractive to Muskrats.
Wayne Langman recommends "Crown Vetch. It covers well flowers all summer and
doesn't offer food to the (musk)rats."
Lethal Muskrat Control
1. Footholds and Conibears
Typically the best way to control muskrats is through trapping. Trapping is
highly effective and efficient. Unfortunately, some citizens like those in
Massachusetts have listened to the animal rights protest
industry instead of scientific management and have banned these traps and/or
severly restricted their use.
To learn how to properly use these effective tools, drop us an e-mail or
check out our store.
2. Muskrats and Colony Traps
Colony traps, as the term suggest, allow the capture of multiple muskrats in
one day. Whereas the foothold and conibear traps can only catch one muskrat at a
time. These colony traps are also cage traps so in the public mind these traps
are allegedly humane whereas footholds and conibears are considered cruel. To
debunk a little of this mindset, read the following quote
Bill Heatherly of Missouri states, "My graduate research
project involved the mark-recapture of muskrats in central Missouri using
both cage and colony traps. My experience was that muskrats captured in
colony traps readily fought with each other, sometimes inflicting injury.
Also, I noted one occurrence of an adult female cannibalizing a juvenile."
Quote used with permission
Now it should be noted that this sort of predation can be reduced if not eliminated
by setting the colony trap so that the muskrats drown. However, the reader should
be exhorted that the anti's consider drowning inhumane also. So as you can see
you can't win either way.
The
image at the left is a muskrat colony trap. They are especially effective in
catching muskrats when placed in muskrat runs. The one pictured at the left
is collapsible for easy storage and transport. This trap is reasonably priced
and will quickly pay for itself. Not legal in all states so be sure to check
state laws prior to use.
Buy Now Colony
Trap

Disclaimer: WDC seeks to provide accurate, effective and responsible information
on resolving human/wildlife conflicts. We welcome suggestions, criticisms to
help us achieve this goal. The information provided is for informational purposes
only and users of the information use it at their own risk. The reader must
consult state/federal officials to determine the legality of any technique in
the reader's locale. Some techniques are dangerous to the user and to others.
WDC encourages readers to obtain appropriate training (see our informational
literature at our Store ), and understand that proper animal damage
control involves patience, understanding that not every technique/method works
for every situation or even 100% of the time. Your use of this information is
governed by this understanding.
We welcome potential users of the information
and photos to simply ask for permission via e-mail. Finally, WDC welcomes
e-mail but understand that all e-mails become property of Wildlife Damage Control.
11/9/03
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