Tuleyome's Science Corner - Habitat Types at the Woodland Regional Park Preserve

Kristie Ehrhardt • March 22, 2023

What was once a literal dump, has been transformed into a regional treasure under the guidance of Tuleyome and the City of Woodland. With support and input from stakeholders, educators and other local non-profits, the 165-acre Woodland Regional Park Preserve (WRPP), which previously hosted the City of Woodland refuse disposal site, has been remolded into a living classroom boasting a variety of habitat types found less and less frequently in our urban environment.


The upland grassland habitat occurs on the northern portion of the site. Topographically speaking, this is the highest portions of the site and supports native and non-native grasses and forbs as well as some trees. Wildlife species such as coyotes and upland birds have been documented in the upland habitat areas. The only water this portion of the site receives is rain water so is typically brown and dry in the hot summer months but green and alive with plants and wildlife during the wetter portions of the year. This area provides dry places for denning and foraging as well as nesting opportunities for ground nesting birds.


The riparian forests of California are sometimes called the “rain forests of California” because of the huge diversity they support. The riparian habitat onsite at WRPP occurs adjacent to the seasonal and perennial wetlands and along connecting drainages. Typical species found here include Fremont cottonwood (Populus fremontii), valley oak (Quercus lobata) and willow (Salix spp.) species along with California buckeye (Aesculus californica), blue elderberry (Sambucus mexicana) and coyote bush (Baccharis pilularis) to form a multilayer canopy. This dense canopy provides year-round cover for many species including: great-horned (Bubo virginianus) and barn owls (Tyto alba), red-tailed hawks (Buteo jamaicensis), American crow (Corvus brachyrhynchos), western bluebirds (Sialia mexicana), tree swallows (Tachycineta bicolor), white-crowned sparrows (Zonotrichia leucophrys), common garter snake (Thamnophis sirtalis), Pacific gopher snake (Pituophis catenifer), racoon (Procyon lotor), western pond turtles (Actinemys marmorata) and many other species terrestrial and aquatic species.


Wetlands have their own ecosystems made up of hydric soils and hydrophytic plant species and are classified into types such as seasonal or permanent depending on how long they remain wet, what the soils are composed of and what type of vegetation they support. The seasonal and perennial wetlands on site at WRPP provide vital habitat for migrating waterfowl coming through the Pacific Flyway. Wetlands also produce oxygen, sequester carbon and filter toxins from the water that recharges our underground aquifer. As the name suggests, seasonal wetlands are only wet for part of the year with soils that remain waterlogged for long periods of time. The emergent vegetation that grows in seasonal wetlands is specialized for soggy soil conditions and includes cattails (Typha sp.), bull rush (Scirpus acutus), sedges (Carex sp.) and rushes (Juncus sp.). Floating vegetation such as duckweed (Lemna sp.) or water primrose (Ludwigia peploides) can also be present. Eventually they dry and become cracked basins with little to no once-lush vegetation. Perennial or permanent wetlands stay inundated year-round and typically have open water with some aquatic floating or emergent vegetation around the edges of the water where the soil transitions from ponded to waterlogged. The vegetation provides cover for fish and wildlife species that may use the open water as part of their habitat. Species observed in the open water includes various waterfowl species such as mallard duck (Anas platyrhynchos), wood duck (Aix sponsa), American coot (Fulica americana) and many other waterfowl species.


Vernal pools are specialized seasonal wetlands. They are depressions in soil that has an underlying hardpan layer and typically don’t drain well. Because the underlying soil doesn’t drain, water from rain collects in these depressions and ponds until the rainy season is over. Vernal pools provide habitat for highly specialized plants and animals; many of them are listed as special-status species. While the pools are inundated, seeds from vernal pool plant species begin to germinate and aquatic invertebrate species begin to hatch. Vernal pool invertebrate species survive the dry period, sometimes for hundreds of years, as cysts in the soil and don’t hatch unless the conditions are right for them. The word “vernal” is a Latin word that means “spring” and as the pools begin to dry down, usually beginning in the spring, many colorful rings of flowers may appear in concentric circles around the sides of the depression. Vernal pools also provide habitat for a variety of other aquatic invertebrates, amphibians are an important source of food for waterfowl and shore birds.


Tuleyome was able to show off the amazing ecosystems at WRPP during the Spring Thing on March 18. Visitors had the opportunity to go on guide hikes showcasing the wetlands, birds, mammals, and "wild areas" of this urban "wilderness".


If you would like to learn more about WRPP, please visit Tuleyome’s website at https://www.tuleyome.org.


-Kristie Ehrhardt (kehrhardt@tuleyome.org)


Tuleyome Land Conservation Program Manager

RECENT ARTICLES

By Bryan Pride November 5, 2025
Tuleyome welcomes our first Policy Intern, Diego Barraza. Diego is a Senior at UC Davis studying Environmental Science and Management and is from Santa Barbara, California. Diego will be joining Tuleyome for a 10 week internship to assist with Tuleyome’s policy initiatives, including supporting the work of the Berryessa Snow Mountain National Monument and Molok Luyuk working group coalition and the San Pablo Bay National Wildlife Refuge Expansion Act. We are excited to have Diego join our team and support our policy initiatives!
By Nate Lillge November 5, 2025
The Berryessa Snow Mountain National Monument region has many wonderful trails to explore and enjoy. From urban parks, like American River Bend Park, to trails that help you get away and above it all, like the Berryessa Peak Trail. Do you want to explore on your mountain bike? Head to Fiske Creek and Blue Ridge Trails. Looking for a place to take your horse? The appropriately named Cowboy Camp is the place to go! Ever hiked a volcano? Check out Mount Konocti. Tuleyome’s Trail Guide has guides to nearly 40 trails in the Berryessa Snow Mountain National Monument region and western Sacramento Valley. This is not an exhaustive list but instead provides you with some of our favorite and most popular locations to experience this wonderful and unique location.
By Kristie Ehrhardt November 5, 2025
If you’re a friend of Tuleyome you likely know a bit about our (it belongs to all of us) newly expanded favorite National Monument - the Berryessa Snow Mountain National Monument. You may also recognize that federal public lands are lands that are owned and/or managed by the United States federal government for the enjoyment of its citizens. And, you probably know that in addition to national monuments there are also national parks, national forests and national historic places but did you know that there are many more public land designations as well?! There are many (MANY!) different types of federal public lands. Most of them are held for conservation, resource management and public recreation. The United States Department of the Interior (DOI) oversees several federal agencies that manage various public land designations and the United States Department of Agriculture (USDA) oversees other agencies that steward public lands. Federal public lands in the United States, District of Columbia and US territories total approximately 640 million acres and occupy nearly 30% of the land area. The National Park Service is an agency within the DOI and oversees not only national parks but also most national monuments and other natural, historical and recreational properties with various title designations or units. These include national preserves, national lakeshores and seashores, national rivers and wild and scenic rivers and national scenic and historic trails, among others. Today The National Park Service currently manages 433 combined parks/units including 63 national parks, 87 national monuments, 75 national historic sites, 64 national historic sites and many other designations totaling 85 million acres in all 50 states, the District of Columbia and US territories. Their management focus is preserving the ecological and historical integrity of these special places for public use and enjoyment. The Bureau of Land Management (BLM) is a federal agency also under the direction of the DOI. The BLM’s mission is “to sustain the health, diversity and productivity of public lands for the use and enjoyment of present and future generations.” We here at Tuleyome think that’s pretty dang good and we often partner with them on varying components of public land use and enjoyment. The BLM is responsible for the management of a substantial portion of the nation’s public lands including some of our most historic and scenic landscapes and natural resources for all to enjoy. The United States Fish and Wildlife Service (USFWS) is another agency operated under the DOI and is the oldest conservation agency in the United States. It was established in 1871 to help monitor the country’s game fish populations. Today the USFWS manages our nation’s wildlife refuges to conserve the habitat, plants and wildlife found there. The national wildlife refuge system began with Pelican Island in 1903 and today there are over 560 refuges across the country. It’s been said that if “national parks are America’s best idea, national wildlife refuges are America’s best-kept secret”. Although, they don’t seem like a very stealthy secret since they receive over 50 million visitors a year! The United States Forest Service (USFS) was established in 1905 and is an agency under the USDA. It is the United States’ predominant forestry agency leading the world in sustainable forest and grassland use, management and stewardship, research and conservation. Today they are responsible for the management of 154 national forests and surrounding areas that total nearly 200 million acres in 43 states, the Virgin Islands and Puerto Rico. The agency also provides stewardship assistance to tribal, state and local governments, private landowners and corporations to improve conditions on about 900 million acres of forests in the U.S. Fun fact - Yellowstone was the United States’ first national park established in 1872. But, at the time Wyoming was still a U.S. territory so Yellowstone was managed by the federal government using the Army and the African American Buffalo Soldiers. Fun fact - the designation National Monument has been given to many different sites ranging from natural reserves, historic military scenes, prehistoric ruins, fossil sites AND to the Statue of Liberty. Fun fact - there is at least one national wildlife refuge in every US state and territory. Fun fact - The Forest Service obviously manages forests but did you know that they also manage grasslands? Did you know… that the Berryessa Snow Mountain National Monument is jointly managed by both the BLM and the USFS, not the National Park Service!? Whether you’re exploring places where you won’t find a motorized vehicle or places where you might not find a parking spot, you can bet there is at least one type of federal public land just a hop, skip and a jump from you! The numerous designations within the National Park System sometimes confuse visitors. The names are created in the Congressional legislation authorizing the sites or by the president, who proclaims "national monuments" under the Antiquities Act of 1906. Many names are descriptive—lakeshores, seashores, battlefields—but others cannot be neatly categorized because of the diversity of resources within them. In 1970, Congress elaborated on the 1916 National Park Service Organic Act, saying all units of the system have equal legal standing in a national system. National Park These are generally large natural places having a wide variety of attributes, at times including significant historic assets. Hunting, mining and consumptive activities are not authorized. National Monument The Antiquities Act of 1906 authorized the President to declare by public proclamation landmarks, structures, and other objects of historic or scientific interest situated on lands owned or controlled by the government to be national monuments. National Preserve National preserves are areas having characteristics associated with national parks, but in which Congress has permitted continued public hunting, trapping, oil/gas exploration and extraction. Many existing national preserves, without sport hunting, would qualify for national park designation. National Historic Site Usually, a national historic site contains a single historical feature that was directly associated with its subject. Derived from the Historic Sites Act of 1935, a number of historic sites were established by secretaries of the Interior, but most have been authorized by acts of Congress. National Historical Park This designation generally applies to historic parks that extend beyond single properties or buildings. National Memorial A national memorial is commemorative of a historic person or episode; it need not occupy a site historically connected with its subject. National Battlefield This general title includes national battlefield, national battlefield park, national battlefield site, and national military park. In 1958, an NPS committee recommended national battlefield as the single title for all such park lands. National Cemetery There are presently 14 national cemeteries in the National Park System, all of which are administered in conjunction with an associated unit and are not accounted for separately. National Recreation Area Twelve NRAs in the system are centered on large reservoirs and emphasize water-based recreation. Five other NRAs are located near major population centers. Such urban parks combine scarce open spaces with the preservation of significant historic resources and important natural areas in location that can provide outdoor recreation for large numbers of people. National Seashore Ten national seashores have been established on the Atlantic, Gulf and Pacific coasts; some are developed and some relatively primitive. Hunting is allowed at many of these sites. National Lakeshore National lakeshores, all on the Great Lakes, closely parallel the seashores in character and use. National River There are several variations to this category: national river and recreation area, national scenic river, wild river, etc. The first was authorized in 1964 and others were established following passage of the Wild and Scenic Rivers Act of 1968. National Parkway The title parkway refers to a roadway and the parkland paralleling the roadway. All were intended for scenic motoring along a protected corridor and often connect cultural sites. National Trail National scenic trails and national historic trails are the titles given to these linear parklands (over 3,600 miles) authorized under the National Trails System Act of 1968. Affiliated Areas In an Act of August 18, 1970, the National Park System was defined in law as, "any area of land and water now or hereafter administered by the Secretary of the Interior through the National Park Service for park, monument, historic, parkway, recreational or other purposes." The Affiliated Areas comprise a variety of locations in the United States and Canada that preserve significant properties outside the National Park System. Some of these have been recognized by Acts of Congress, others have been designated national historic sites by the Secretary of the Interior under authority of the Historic Sites Act of 1935. All draw on technical or financial aid from the National Park Service. Other Designations Some units of the National Park System bear unique titles or combinations of titles, like the White House and Prince William Forest Park . Types of federal public lands National Parks : Managed by the National Park Service (NPS), these lands are preserved for their natural and cultural resources for future generations to enjoy. National Forests and Grasslands : Managed by the U.S. Forest Service (USFS), these areas are used for multiple purposes, including timber, recreation, and wildlife management. National Wildlife Refuges : Managed by the U.S. Fish and Wildlife Service (USFWS), these lands are primarily for the conservation of fish, wildlife, and plants, but many also allow compatible wildlife-dependent recreation like hunting and fishing. National Conservation Lands : These are public lands designated for their conservation value and are managed by the Bureau of Land Management (BLM). The BLM manages more public land acreage than any other agency. Management and use Management: Federal lands are managed by various agencies, with the U.S. Forest Service (Department of Agriculture) and the Bureau of Land Management, the National Park Service, and the U.S. Fish and Wildlife Service (all under the Department of the Interior) being the primary ones. Resource Extraction: Some federal lands are available for resource extraction like oil, gas, and mining, which can be a source of controversy and debate over conservation versus extraction. Recreation: The lands offer a wide range of recreational opportunities, such as hiking, camping, wildlife viewing, hunting, and fishing. Information: You can find information about specific public lands, including maps and regulations, on the official websites of the managing agencies.