Columbia River Wildlife Mitigation Habitat Evaluation Procedures Report / Scotch Creek Wildlife Area, Berg Brothers, and Douglas County Pygmy Rabbit Projects. Page: 47 of 115
117 pagesView a full description of this report.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
GLOSSARY
DEFINITIONS:
Age Classes: A grouping of trees according to age, usually in broad categories, used for
growth projections.
Agricultural Cover: Areas dominated with vegetation which has been planted and/or is
treated with annual tillage, a modified conservation tillage, or other land management
practice.
Breeding Site: The immediate area and features associated with producing and rearing
young (e.g. nest tree, den, lek, etc.).
Breeding Area: The area necessary to support reproduction and rearing of young; includes
breeding sites and may include a disturbance buffer.
Browse: That part of the current leaf and twig growth of shrubs, woody vines, and trees
available for animal consumption.
Canopy Cover: The portion of ground, usually expressed as a percentage, that is occupied
by the perpendicular projection down on to it of the aerial parts of the vegetation or the
species under consideration. The additive cover of multiple strata or species may exceed
100%.
Cavity: A hollow excavated in trees usually by birds or other natural phenomena; used for
roosting and nest sites by many mammals and birds.
Closed Tree Canopy: A class of vegetation that is dominated by trees with interlocking
crowns (forming 60 - 100% crown cover).
Cover Type: An area of land or water with similar physical, chemical, and biological
characteristics that meet a specified standard of homogeneity.
CRP: Conservation Reserve Program i.e., agricultural land taken out of production and
planted to grasses, forbs, and legumes. Farmers enter into a 10 year contract with the US
Department of Agriculture and are paid to stop producing crops. The enrolled acreage
cannot be farmed, grazed or burned until the end of the contract period.
DBH: Diameter at breast height (4.5 feet).
Deciduous Cover: Vegetation classes where 75% or more of the vegetation is made up of
tree or shrub species that shed foliage in response to an unfavorable season. There is
usually one "leaf - off' season per year.
Diversity: The distribution and abundance of different plant and animal communities within
a given area.41
1
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Ashley, Paul R. Columbia River Wildlife Mitigation Habitat Evaluation Procedures Report / Scotch Creek Wildlife Area, Berg Brothers, and Douglas County Pygmy Rabbit Projects., report, January 1, 1997; Olympia, Washington. (https://digital.library.unt.edu/ark:/67531/metadc703292/m1/47/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.