DecAID - Decayed Wood Advisor

Study Specific Data on

These tables display the underlying data from each study and the source citation, for each species, that were summarized for the cumulative species curves. The Structural Condition Classes are: S/M = Small/ Medium Trees, O = Open Canopy, L = Larger Trees. P-values in the table pertain to significance values for a number of different statistical tests. View underlying data for additional information for each study. Footnotes in the table headings refer to individual studies in the Citation column. PRINT TABLES IN LANDSCAPE.

Underlying Data

Table WLCH_S.sp-25. Study-specific data and information used to create the cumulative species curves for snag size (dbh) for nesting and denning in the Westside Lowland Conifer-Hardwood Forest Wildlife Habitat Type and Small/medium trees Structural Condition Class. Data for NFSQ include some SW Oregon Mixed Conifer-Hardwood¹ and Montane Mixed Conifer² sites.

Species	Mean dbh (cm)	Mean dbh (in)	sd	n	Type of Data	p-value	Structural Condition Class	Geographic location	Part of state	Citation
BRCR	83.5	32.6	57.3	50	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
BRCR	28.8	11.2	8.2	6	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
CBCH	94.0	36.7	35.7	21	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
CBCH	103.0	40.2	N/A	14	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
CBCH	107.8	42.0	50.9	96	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
CBCH	105.8	41.3	31.5	32	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
CBCH	75.9	29.6	43.8	7	nests	N/A	S/M & L	Washington	Olympic Peninsula	Zarnowitz and Manuwal 1985
CNB	83.0	32.4	34.4	68	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
HAWO	80.4	31.4	31.4	32	nests	<0.0001	O, S/M, & L	Oregon	Cascades	Brett 1998
HAWO	73.9	28.8	33.4	18	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
HAWO	92.0	35.9	N/A	7	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
HAWO	72.2	28.2	40.0	23	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
HAWO	54.5	21.3	44.1	16	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
HAWO	57.6	22.5	24.6	16	nests	N/A	O, S/M, & L	Washington	Olympic Peninsula	Zarnowitz and Manuwal 1985
HOWR	131.8	51.4	N/A	2	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
NFSQ	63.7	24.8	61.7	109	dens	N/A	S/M	Washington	Puget Sound	Carey et al. 1997
NFSQ	77.0	30.0	41.6	7	dens	N/A	S/M	Oregon	Coast Range	Carey et al. 1997
NFSQ	41.6	16.2	37.8	78	dens	N/A	S/M	Washington	Puget Sound	Carey et al. 1997
NFSQ	74.0	28.9	34.7	134	dens	N/A	S/M & L	Oregon	Cascades	Feen 1997^1,2
NOFL	77.7	30.3	31.3	63	nests	<0.0001	O, S/M, & L	Oregon	Cascades	Brett 1998
NOFL	127.7	49.8	N/A	3	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
NOFL	61.0	23.8	N/A	8	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
NOFL	95.8	37.4	30.0	9	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
NOFL	130.0	50.7	N/A	1	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
NOFL	53.3	20.8	12.3	7	nests	N/A	O, S/M, & L	Washington	Olympic Peninsula	Zarnowitz and Manuwal 1985
NPOW	55.6	21.7	23.8	8	nests	N/A	S/M & L	Washington	Olympic Peninsula	Giese et al. 1997
NPOW	54.0	21.1	N/A	3	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
NPOW	74.0	28.9	N/A	1	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
PCE	87.7	34.2	50.7	127	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
PIWO	101.2	39.1	20.2	25	nests	<0.05	S/M & L	Washington	Olympic Peninsula	Aubry and Raley 2002
PIWO	78.0	30.4	31.7	28	nests	<0.01	S/M & L	BC		Hartwig et al. 2004; Hartwig 1999
PIWO	88.0	34.3	N/A	2	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
PIWO	78.0	30.4	N/A	7	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
PIWO	68.9	26.9	25.5	15	nests	N/A	S/M & L	Oregon	Coast Range	Mellen 1987
PIWO	67.0	26.1	20.3	6	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
RBNU	71.1	27.7	31.5	19	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
RBNU	118.0	46.0	N/A	7	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
RBNU	81.7	31.9	51.5	59	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
RBNU	52.3	20.4	27.3	10	nests	N/A	S/M	Oregon	Coast Range	Weikel and Hayes, unpublished data
RBSA	80.5	31.4	28.7	68	nests	<0.0001	O, S/M, & L	Oregon	Cascades	Brett 1998
RBSA	76.3	29.8	N/A	4	nests	N/A	S/M & L	Washington	Cascades	Lundquist 1988
RBSA	101.0	39.4	N/A	9	nests	N/A	S/M & L	Oregon	Coast Range	Mannan et al. 1980
RBSA	113.0	44.1	53.7	30	nests	N/A	S/M & L	Oregon	Coast Range	Nelson 1988
SCNB	63.0	24.6	N/A	18	nests	N/A	O, S/M, & L	Washington	Olympic Peninsula	Zarnowitz and Manuwal 1985; Zarnowitz 1982
SCNB	98.5	38.4	54.9	149	nests	N/A	S/M & L	Oregon	Cascades	Nelson 1988
WIWR	93.1	36.3	N/A	4	nests	N/A	S/M & L	Washington	Olympic Peninsula	Zarnowitz and Manuwal 1985; Zarnowitz 1982

Table WLCH_S/L.sp-26. Study-specific data and information used to create the cumulative species curves for snag size (dbh) for roosting in the Westside Lowland Conifer-Hardwood Forest Wildlife Habitat Type and Small/medium and Larger trees Structural Condition Classes. Data include some Montane Mixed Conifer¹ sites.

Species
Mean dbh (cm)
Mean dbh (in)
sd (cm)
n
Type of Data
p-value
Structural Condition Class
Geographic location
Part of state
Citation

AMMA
81.0
31.6
N/A
120
rest sites
N/A
S/M & L
Washington
Cascades
Jones and Raphael 1991¹

BBBA
121.6
47.4
42.8
42
roosts
significant odds ratio
S/M, & L
Oregon
western Cascades
Arnett 2007; Arnett and Hayes 2009

FRMY
73.7
28.7
N/A
3
roosts
N/A
S/M & L
Oregon
SW Oregon
Cross et al. 1996

FRMY
104.0
40.6
N/A
1
roosts
N/A
S/M, & L
Oregon
SW Oregon
Cross et al. 1996

LEMY
62.4
24.3
37.2
24
roosts
N/A
S/M, & L
Oregon
western Cascades
Arnett 2007; Arnett and Hayes 2009

LEMY
93.3
36.4
52.8
20
roosts
N/A
O, S/M & L
Oregon
Cascades
Waldien 1998; Waldien et al. 2000

LLMY
91.1
35.5
49.2
105
roosts
significant odds ratio
S/M, & L
Oregon
western Cascades
Arnett 2007; Arnett and Hayes 2009

LLMY
75.0
29.3
N/A
2
roosts
N/A
S/M & L
Oregon
SW Oregon
Cross et al. 1996

LLMY
97.0
37.8
42.3
36
roosts
N/A
O, S/M, & L
Oregon
Cascades
Ormsbee 1996 a & b

PIWO
149.0
58.1
57.9
144
roosts
<0.05
S/M & L
Washington
Olympic Peninsula
Aubry and Raley 2002

PIWO
118.2
46.1
50.6
13
roosts
N/A
S/M & L
Oregon
Coast Range
Mellen 1987

Table WLCH_S.sp-27. Study-specific data and information used to create the cumulative species curves for snag size (dbh) for foraging in the Westside Lowland Conifer-Hardwood Forest Wildlife Habitat Type and Small/medium trees Structural Condition Classes.

Species
Mean dbh (cm)
Mean dbh (in)
sd (cm)
n
Type of Data
p-value
Structural Condition Class
Geographic location
Part of state
Citation

HAWO
64.8
25.3
29.1
94
foraging
<0.001
S/M
Oregon
Coast Range
Weikel and Hayes 1999

PIWO
56.0
21.8
29.1
94
foraging
<0.01
S/M & L
BC
Vancouver Island
Hartwig 1999

Species	Mean dbh (cm)	Mean dbh (in)	sd (cm)	n	Type of Data	p-value	Structural Condition Class	Geographic location	Part of state	Citation
AMMA	81.0	31.6	N/A	120	rest sites	N/A	S/M & L	Washington	Cascades	Jones and Raphael 1991¹
BBBA	121.6	47.4	42.8	42	roosts	significant odds ratio	S/M, & L	Oregon	western Cascades	Arnett 2007; Arnett and Hayes 2009
FRMY	73.7	28.7	N/A	3	roosts	N/A	S/M & L	Oregon	SW Oregon	Cross et al. 1996
FRMY	104.0	40.6	N/A	1	roosts	N/A	S/M, & L	Oregon	SW Oregon	Cross et al. 1996
LEMY	62.4	24.3	37.2	24	roosts	N/A	S/M, & L	Oregon	western Cascades	Arnett 2007; Arnett and Hayes 2009
LEMY	93.3	36.4	52.8	20	roosts	N/A	O, S/M & L	Oregon	Cascades	Waldien 1998; Waldien et al. 2000
LLMY	91.1	35.5	49.2	105	roosts	significant odds ratio	S/M, & L	Oregon	western Cascades	Arnett 2007; Arnett and Hayes 2009
LLMY	75.0	29.3	N/A	2	roosts	N/A	S/M & L	Oregon	SW Oregon	Cross et al. 1996
LLMY	97.0	37.8	42.3	36	roosts	N/A	O, S/M, & L	Oregon	Cascades	Ormsbee 1996 a & b
PIWO	149.0	58.1	57.9	144	roosts	<0.05	S/M & L	Washington	Olympic Peninsula	Aubry and Raley 2002
PIWO	118.2	46.1	50.6	13	roosts	N/A	S/M & L	Oregon	Coast Range	Mellen 1987