Willapa National Wildlife Refuge
Pacific Region
 

Management

Willapa NWR faces many unique challenges. While it includes many pristine areas, it also includes many recent acquisitions where considerable restoration effort is needed. It includes an amazing diversity of habitats from ocean sand dune beaches to the sheltered mudflats of the bay, from pristine old growth forests to open saltgrass meadows. The refuge is home to several threatened and endangered species and is trying to restore habitat for many others. Like many places, Willapa NWR is also coping with the threat of invasive species.

Western Snowy Plover  Forest Managment 
Invasives-Spartina alterniflora   Comprehensive Conservation Plan

 

Western Snowy Plover snowy plover

Western Snowy Plovers are small shorebirds, about 6 inches long, that nest on the Leadbetter Unit of Willapa National Wildlife Refuge. They are part of the Pacific Coast population that breed from Washington to Mexico and are listed as a threatened species by the U.S. Fish & Wildlife Service. This is one of the two main nesting sites in Washington. Their numbers have declined due to habitat loss and degradation of habitat by invasive American and European beachgrasses. Human disturbance and expanding recreational use of beaches have also contributed to their decline.

Snowy Plovers will lay their nests anywhere on a dry sand beach, from just above the high tide line to the foredune. Typically, 3 eggs are laid in a nest and take about 1 month to hatch. The chicks are about the size of a cotton ball at hatching and amazingly chicks leave the nest within hours to search for food. Chicks are unable to fly for about a month, which makes them vulnerable to predators, being crushed by people and escaping bad weather.

 In 2001, we began habitat restoration efforts for the western Snowy Plover at the Leadbetter Unit. Non-native, invasive beach grass has been cleared, using a bull dozer, and as of the 2008 nesting season, approximately 120 acres have been restored to open sand beach habitat that plovers traditionally use. Oyster shell has been added to the area to provide camouflaging for nests and plovers. Oyster shell hides the eggs not only from predators, but from humans. Would you notice the eggs in the nest at right before you stepped on them?

The Snowy Plover nesting season is from mid March through September and it is during this critical time that plovers are easily disturbed. Adults are frightened off a nest by people and their dogs coming too close, which makes them vulnerable to being crushed or eaten by predators. If disturbances are lengthy or frequent, the eggs in the nest get buried by sand and will not hatch. For this reason, the active plover nesting area of upper dry sand beach is closed off to public use during the nesting season and no dogs are allowed on the beach of the Leadbetter Unit.

Forest Management

Forest lands in the Willapa Bay area are dominated by commercial timberlands. In fact, most of the forested acreage within either the refuge or Willapa Bay watersheds is second or third growth timber. Very little old growth or late-successional forest exists. One estimate states that less than one percent of the original coastacopes salamanderl old growth remains. The largest old growth parcel in the refuge is the 274 acre Cedar Grove located on Long Island. Many of the 7000 forested acres on the refuge are comprised of monotypic, even-aged forest stands lacking in biological diversity, with limited species composition and poor forest structure.

A variety of wildlife are dependent on old growth and late-successional forests. Black bear, black-tailed deer, Roosevelt elk, salamanders, forest-dwelling bats and other small mammals, marbled murrelets, pileated woodpeckers and other forest birds and a host of rare fungi and gastropods can be found in some refuge forests. Forest streams also provide habitat for anadromous fish such as chinook, coho and chum salmon and sea-run cutthroat trout.

Due to the degraded nature of refuge forests as well as those of the surrounding areas, a major effort is needed to restore these forests to a semblance of their natural state. The refuge has embarked on a landscape-based forest management program in cooperation with the Nature Conservancy, which manages the 7000 acre Ellsworth Creek Preserve which is located adjacent to the refuge. Forest inventories on both properties have been completed and a forest management plan is being developed. Activities to restore forests will include manipulation of degraded forest stands through such techniques as variable density thinning, direct reestablishment of under-represented tree and other plant species, removal of non-native species and elimination of unnecessary and deteriorating forest roads.

Invasive Plants-Spartina alterniflora spartina closeup

Willapa Bay is one of the top biologically pristine estuaries remaining in the lower 48 states. Thousands of people depend on the bay's renewable natural resources for their livelihoods. Thousands more visit the bay each year to enjoy the natural beauty and recreational opportunities found here throughout the year.

In recent years, spartina grass--accidentally introduced from the eastern United States--has exploded in Willapa Bay, threatening the survival of both wildlife and the aquaculture industry in Willapa Bay. Willapa National Wildlife Refuge has entered into a ground-breaking partnership with a variety of groups including Washington State University and University of Washington, Washington State Departments of Agriculture, Natural Resources, and Wildlife, private landowners, oyster growers, the spartina eradicationNature Conservancy, and other private interest groups to eradicate spartina from Willapa Bay.

Willapa NWR, along with its partners, is using every available means in its goal to eradicate spartina from Willapa Bay before it does irreversible damage. Where the spartina had formed large meadows, the refuge used large amphibious machines with precision sprayers. These machines are equipped with sensors on their spray head which detect whether the spray nozzles are over water/mud or spartina, releasing chemical only when over spartina. Helicopters are also used to aerially spray large meadows and large clone fields. Spartina occurs mostly as isolated pathces and hand-crews on airboats attack the seedlings, individual plants, and small clones. Airboats can maneuver to difficult access areas. Rototilling was also used, but was too slow to keep pace with spartina's rapid expansion. Rototilling is, however, very useful in rehabilitating selected areas for immediate use by shorebirds. The University of Washington in cooperation with Willapa NWR and state agencies is continuing the introduction of Prokelisia marginata (an insect) for biological control as an additional weapon in the war to preserve Willapa Bay for both wildlife and people.

 

Comprehensive Conservation Planning

Comprehensive Conservation Plans (CCPs) describe the desired future conditions of a refuge and provide long-range guidance and management direction to achieve refuge purposes; help fulfill the National Wildlife Refuge System (Refuge System) mission; maintain and, where appropriate, restore the ecological integrity of each refuge and the Refuge System; help achieve the goals of the National Wilderness Preservation System; and meet other mandates. 

The U.S. Fish and Wildlife Service must manage all national wildlife refuges according to an approved CCP.  We will prepare a CCP by October 2012. We will continue to manage each refuge with existing plans effective prior to October 9, 1997, to the extent these plans are consistent with the Refuge Administration Act, until we revise such plans or new CCPs supersede them.  Upon completion of a CCP, we will manage the refuge or planning unit in a manner consistent with the CCP.  We will revise the CCP every 15 years thereafter, or earlier if monitoring and evaluation determine that we need changes to achieve planning unit purpose(s), vision, goals, or objectives.

Willapa National Wildlife Refuge is in the early stages of the CCP and conducted the first public meeting in March 2008. Results from the meeting were published as a #2 Planning Update. As this process continues, we will post updates on the website.

Last updated: September 4, 2008