Oak Habitat
Dave Vesely, one of LWC's board members, co-authored a
guide to assist landowner's efforts to restore oak woodland
habitat. LWC hosted a workshop for landowners interested in
oak restoration in 2005, led by Brad Withrow-Robinson.
Oregon white oak savannas and woodlands are a very
important piece of the ecological fabric of the Pacific
Northwest. The Oregon white oak provides important habitat
for more than 300 animal species in our region. These
habitats, and the wildlife that depend on them, have
diminished greatly from the past. Owners of land with oak
habitat possess the opportunity to conserve this dwindling
habitat. Federal, state and private assistance programs for
oak restoration are currently available and can cover 75 to
100 percent of a landowner's costs for oak enhancement
activities.
Landowners who are looking for ways to improve Oregon white
oak woodlands, savannahs or prairies where they live now
have a handy resource. Dave Veseley and Gabe Tucker, two
oak experts, have teamed up to write “A
Landowner’s Guide for Restoring and Managing Oregon
White Oak Habitats.” This free, 65-page, full-color
booklet was sponsored by several federal, state and private
agencies, including the U.S. Bureau of Land Management, the
Oregon Department of Forestry and OSU Extension Service.
The latest research on oak “communities,” the
catch-phrase for oak woodlands, savannahs and prairies,
provides practical information to anyone interested in
learning more about oak. In addition to describing the
tree’s history, biology and the environment in which
it thrives, the book also describes the process by which
landowners can launch their own oak conservation projects.
With 99 percent of the oak habitats in private hands, this
book is aimed at landowners who are looking at projects as
small as a few trees and as large as entire forests.
Following are a few highlights of the book. The entire book
is available
online, or
can be ordered from the
Bureau of Land Management. To
request a copy by mail: BLM Salem District Office, ATT:
Hugh Snook, 1717 Fabry Rd, Salem, OR 97306. A 25-minute
video to accompany the guide, titled “A Landowner's
Video Guide for Restoring and Managing Oregon White Oak
Habitats” is also available.
- Savannahs, prairies and woodlands
– What’s the difference? Basically, density
determines the name of the community. Savannahs and
prairies are dominated by native grasses with scattered,
drought-resistant oaks. Oak woodlands are forests in
which oak is the dominant species.
- History – Oak communities have
long been important to the Willamette Valley Native
American tribes who depended on the acorns for food and
the wood for tools. More important, however, were the
nearly 50 other species of food plants found in the
savannahs and wet prairies surrounding the oaks. When
white settlers first arrived in the valley, they found
the Kalapuyans burning the prairies around the
fire-resistant oaks to make it easier to find and
maintain the camas and tarweed, deer and elk. Oak
savannahs began to disappear when burning stopped. Later,
when oak woodlands were cut down and replaced by
conifers, important habitats were lost.
- Importance to farms – Sheep,
horses and cattle naturally gravitate to shade and
shelter, making oak savannahs a perfect place for
livestock. There are other advantages to preserving oaks
in pastureland, including their attraction to hunting
hawks and owls, who keep the vole population in check.
Oak environments also trap run-off from pastures, helping
to keep water clean.
- Environment – Oak trees are
home to dozens of lichens, mosses, amphibian, insects and
microorganisms that live only on the leaves, trunks and
roots of oaks. But on a landscape scale, entire
communities of plants and animals in oak savannahs and
woodlands “are remarkably different than the
intensively managed agricultural fields and conifer
forests surrounding them,” Vesely wrote. Diversity
in the environment can be preserved by halting the
disappearance of oak communities in the Willamette
Valley.
- Life of the oak – The Oregon
white oak -- also known as “Garry oak” for
its scientific name, Quercus garryana -- ranges generally
west of the Cascades from Vancouver Island, B.C., to Los
Angeles, Calif. The tree is found on dry, rocky
hillsides, in floodplains and in clay and loam soils. An
oak begins as a seed or a sprout but does not begin
producing acorns until it is about 20 years old. An oak
can live 500 years, and under the best soil conditions,
can reach 100 feet. Because they grow slowly and need
sunlight, oaks are easily crowded out by conifers and
other faster-growing hardwoods. Where once fire and other
natural disasters assured the existence of oak woodlands
and savannahs, today human help is needed to preserve
them.
- Goals and management of oak lands
– Most of the book is a step-by-step guide to
planning and seeing through oak conservation projects,
beginning with the landowner’s situation and
desires. With examples from people who have already begun
projects, the book takes landowners through assessments,
restoration planning, decision-making, management
planning, on-the-ground tasks, logging practices,
planting, tools, slash management methods, prescribed
burning, replanting, seedling protection and
monitoring.
- Resources – The book and has
handy list of resources names, links and websites
valuable to landowners: plant and forestry equipment
suppliers, technical advisers, grant and cost-share
resources and additional information about Oregon white
oak.