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    Pond Management: What are those furry creatures in my pond?

    by: SOLitude Lake Management   |   Jan 16, 2014

    By J. Wesley Allen, Environmental Scientist

    The Muskrat and North American Beaver have adapted to the increasing number of stormwater ponds and facilities, and can cause huge headaches if not recognized and controlled.

    Muskrats are small dark brown to black aquatic rodents (16-24 in., 1.3-4.4 lbs.) that live in ponds and wetlands throughout most of the United States and Canada, feeding on the aquatic vegetation found there. Muskrats are prolific breeders and can have two to three litters of up to eight young per litter every year. Muskrats were once trapped extensively for their fur, but reduction of trapping and predator numbers have allowed muskrat populations to remain strong, even with the loss of wetland habitat.

    muscratbThe muskrat has moved into many stormwater ponds, wetlands, and facilities. They can seriously damage these areas by burrowing into embankments, leading to massive erosion and even pond/facility failure. They can also eat installed and beneficial wetland plants. Because they breed prolifically, the population can quickly become destructive. They are active mainly at dawn or dusk, but burrows in the embankment near the water and disappearing aquatic vegetation are indicators of muskrats. There are very few preventative measures to keep muskrats from your pond, but keeping cattail populations under control can reduce the risk. Trapping is the best method to control muskrat populations.

    Beavers are the largest rodent in North America, and are found throughout the continent (25-35 in., average 44 lbs.). They were once almost trapped into extinction. Conservation efforts and the collapse of the fur market have seen their populations rebound. Beavers are prolific dam and lodge builders. The ponds they create give them access to the leaves, buds, and inner bark that is their food source.

    beaver damage to tree

    Beaver activity in stormwater ponds and drainage areas cause costly damage. Beavers block outfall areas leading to reduced drainage and flooding problems. Beavers can also burrow into embankments that can also cause erosion and failure of stormwater facilities. Although beavers are nocturnal, fallen trees near your pond are a sure sign beavers are active in the area. Keeping woody vegetation from growing on the embankment or in the facility can reduce the risk of beavers. Trees can also be protected with wire fencing or a mixture of latex paint and sand. Once beavers are in your pond, trapping is often the best method to remove them.

    Regulations on trapping vary from state to state. If you think you have a muskrat or beaver problem, your lake and pond professional can work with you, your community, or your client’s community to develop the correct management plan for these remarkably adaptable creatures.

    8 Questions To Ask When Hiring A Pond And Lake Management Company

     

    Enrich Your Aquatic Habitats

    Contact the experts at 888-480-LAKE (5253) for all of your lake, pond and fisheries management needs.

    J. Wesley Allen is an Environmental Scientist with SOLitude Lake Management. Since 1998, SOLitude Lake Management has been committed to providing full service lake and pond management services that improve water quality, preserve natural resources, and reduce our environmental footprint. Our services include lake, pond and fisheries management programs, algae and aquatic weed control, installation of fountains and aeration systems, water quality testing and restoration, bathymetry, lake vegetation studies, habitat assessments and nuisance wildlife management. Fisheries management consulting and aquatic products are available nationwide. Learn more about SOLitude Lake Management and purchase products at www.solitudelakemanagement.com.

    Topics: Nature's Creatures, Nuisance Wildlife Control