Columbia River Wildlife Mitigation Habitat Evaluation Procedures Report / Scotch Creek Wildlife Area, Berg Brothers, and Douglas County Pygmy Rabbit Projects. Page: 76 of 115
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YELLOW WARBLER BASELINE HEP ANALYSIS 1996
YELLOW WARBLER BREEDING
HSI
LOCATION:
HABITAT UNITS
DATE
HEP TEAM: P. Ashley, M. Berger, M. Whalen,
HSI for YELLOW WARBLER is equal to the calculated value for reproduction.
SIV1 . Percent deciduous shrub crown cover {the % of ground shaded by vertical
projection of the canopies of woody vegetation < 5 m (16.5 ft) in height}.
Suggested sampling technique is line intercept.
SIV2. Average height of deciduous shrub canopy (the average height from the ground
to the top of those shrubs that comprise the uppermost shrub canopy). Suggested
sampling technique graduated rod.
SIV7. Percent of deciduous shrub canopy comprised of hydrophytic shrubs (the
relative percent of the amount of hydrophytic shrubs compared to all shrubs, based on
canopy cover). Suggested sampling technique is line intercept.1.0
0.8
X0.6
0.4
0.20 25 50' 75
V, Percent deciduous
shrub crown cover.1.0 -
0.8 -
c.6
~0.6 -
- 0.4 -
4-b .2100.
I I
I-,
1.0-
0.8-
0.6
0.4~
0.20 0.5 1.0 1.5 2.0
V2 Average height of
deciduous shrub
canopy. CM)0 25 50 75 1
00
V3 Percent of deciduous
shrub 'canopy comprised.
of hydrophytic shrubs.Reproduction Equation = (Vi x V2 x V3)1/t power.
Schroeder, R.L. 1982. Habitat suitability index models: yellow warbler.
U.S. Dept. Int.,Fish Wildl. Serv. FWS/OBS-82/10.27 7 pp.-
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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/m1/76/?rotate=180: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.