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Criterion 1 Indicator 7
Rationale
 
The Status (Rare, Threatened, Endangered, or Extinct) of Forest-Dependent Species That Are at Risk of Not Maintaining Viable Breeding Populations, as Determined by Legislative or Scientific Assessment.
 
 
 
If forest land managers know which forest-dependent species are at risk and what the situation of these species is, then they can modify their management activities to maintain or benefit populations of these at-risk plants and animals. Forest managers can identify dangerous trends early and modify their management activities before a species is in a critical condition, if they have reliable information.

Can This Indicator Be Quantified
  Appendix B, Table 2, lists forest-dependent species (including vascular plants and vertebrate animals) that are extirpated from the state, listed as threatened or endangered at the state or federal levels, as well as sensitive species that have no formal listing but are of concern to biologists for a variety of reasons. The number of species on this list is highly variable, and depends in part on the professional judgment of biologists and in part on the present state and federal endangered species lists. These lists may be modified at any time.
 
Oregon Extiprated or Listed Species (Appendix B, Table 2)

Trends
In general, the species listed in Appendix B, Table 2 do not adapt readily to disturbance, and have been negatively impacted by past forest disturbances.

Data Source and Availability
  The species list for Indicator #7 was developed from the Oregon Natural Heritage Program element tracking database.
 
Data on Oregon’s sensitive species and the Oregon Endangered Species Act is available from Oregon Department of Fish and Wildlife. Information on the federal Endangered Species Act is available from the U.S. Fish and Wildlife Service. Information is also available in the publications listed under "References."

Reliability of Data
   
Data used in this indicator is reliable. Although there is no ambiguity surrounding the formally listed species, professional judgment is involved in the decisions to include some of the sensitive species in Appendix B, Table 2. It is not always easy to determine whether or not a species is at risk of not maintaining viable populations.

Scale
   
Statewide.

Recommended Action for Data Collection
   
It would be beneficial to monitor forest-dependent species, in order to make an early identification of species at risk of not maintaining viable populations. For species that are already at risk, thorough ongoing studies are warranted to identify management practices that can improve the outlook for the species’ survival.

Definitions
   
LE — listed as endangered.
 
LT — listed as threatened.
 
PE — proposed for listing as endangered.
 
PT — proposed for listing as threatened.
 
C — candidate for listing as threatened or endangered.
 
SOC — species of concern; there is not enough information available to warrant listing.
 
NL — not listed in a portion of the range.
 
Forest-dependent species — Any species that uses forested habitats, or portions of forested habitat, at any point during the life cycle. This does not include species that may occasionally wander into forests, but who are not normally expected to be found in forested habitat.
 
Sensitive species — Species for which there is some concern about their ability to maintain viable breeding populations.
 
State status — A species’ status under the Oregon Endangered Species Act. For animals, this act is administered by the Oregon Department of Fish and Wildlife. For plants, the act is administered by the Oregon Department of Agriculture.
 
LE — listed as endangered.
 
LT — listed as threatened.
 
PE — proposed for listing as endangered.
 
PT — proposed for listing as threatened.
 
C — candidate for listing as threatened or endangered.
 
NL — not listed in a portion of the range.
 
SC — ODFW sensitive critical species; listing as threatened or endangered is pending or may be appropriate if immediate conservation actions are not taken.
 
SV — ODFW sensitive vulnerable; listing as threatened or endangered is not believed imminent and can be avoided through protective measures and monitoring.
 
SP — ODFW sensitive peripheral or naturally rare; species whose Oregon populations are on the edge of their ranges, or species that have always maintained low populations because of naturally limiting factors.
 
SU — ODFW sensitive undetermined; status is unclear. These species may qualify for listing as threatened or endangered, but scientific study is required before a judgment can be made.
 

Selected References
   
Brown, E. R. 1985. Management of wildlife and fish habitats in forests of western Oregon and Washington. USDA Forest Service Pacific Northwest Research Station, Portland, OR. R6-F&WL-192-1985.
 
Csuti, B., and A. J. Kimmerling, T. A. O’Neil, M. M. Shaughnessy, E. P. Gaines, M. M. P. Huso. 1997. Atlas of Oregon wildlife: distribution, habitat and natural history. Oregon State University Press, Corvallis, OR.
 
Gilligan, J., and M. Smith, D. Rogers, A. Contreras, editors. 1994. Birds of Oregon: status and distribution. Cinclus Publications, McMinnville, OR.
 
Maser, C. 1998. Mammals of the Pacific Northwest: from the coast to the high Cascades. Oregon State University Press, Corvallis, OR.
 
Nussbaum, R. A., and E. D. Brodie, Jr., R.M. Storm. 1983. Amphibians and reptiles of the Pacific Northwest. University of Idaho Press, Moscow, ID.
 
Oregon Natural Heritage Program. 1999. Element tracking data base. Unpublished data. Available from Oregon Natural Heritage Program, Portland, OR.
 
Verts, B. J., and L. N. Carraway. 1998. Land mammals of Oregon. University of California Press, Berkeley, CA.