All of the natural resource agencies that work on the
Anacostia know that there’s a goose problem on the river.
There’s too many of them, like many places across the
country. But did you know that last year an overabundance of
resident Canada Geese— geese that have lost the urge to
migrate— ate half of the newly-installed wetland plants at
the new Kingman Marsh wetland restoration project down by RFK?
It was a major setback, which didn’t come cheap, either.
Several hundred thousand dollars worth of the taxpayer’s
plants were turned into goose poop. That’s according to
Hannah Harris, a graduate student at the University of Maryland’s
Sustainable Development and Conservation Biology Program in her
April 2002 paper “The Impact of Resident Canada Geese on
Wetland Restoration, and An Evaluation of Available Mitigation
Techniques,” which was prepared in collaboration with AWS.
In response to the mowing, the Army Corps of Engineers—who
are in charge of the big constructed wetlands program on the
river—are redoubling their efforts to protect their restored
wetlands from geese by erecting four-foot high, black plastic
mesh fencing. They are also countering Branta canadensis
by using plants that are not palatable to geese—Arrow Arum,
Soft-stem Bulrush, and Spatterdock—in upcoming plantings.
But these are not perfect solutions. Fencing has aesthetic
drawbacks in a natural setting. It also requires maintenance,
catches floatable trash, and can harm other wildlife. Using a
reduced array of wetland plants that geese dislike reduces the
diversity—and thus the stability—of the wetland plant
community.
Recently, AWS joined officials from the District of Columbia
Fisheries and Wildlife Division, the National Park Service,
U.S. Fish and Wildlife Service, and U.S. Department of
Agriculture, and work was initiated on a resident geese
management plan. The goal of this process is to develop a
regional plan which is approved by the relevant agencies, as
well as the public, and which is achieved through an open
process, which includes animal welfare organizations. A balance
must be achieved in the Anacostia River ecosystem, so that the
flora and fauna can peacefully coexist. *