Skip to main content

Table 2 Roost habitat-scale characteristics of 22 roost trees used by Myotis californicus. Contextual variables include the following: bat frequency, distance from capture site (m); elevation (m); environmental variables used in analysis include the following: habitat percent canopy cover; habitat tree height (m); burn variables used in analysis include the following: habitat burn severity (unburned, low, or high severity: measured); distance to unburned area (unburned, near_50m = near unburned area within 0 to 50 m, medium_50_100m = within 50–100 m of an unburned area, far_over_100m = more than 100 m from unburned area. Elevation, habitat precent canopy cover and habitat tree height (m), and habitat burn severity were measured using the mean (elevation, canopy cover) or maximum (tree height, burn severity) of pixels within a circle around each roost with a radius of 30 m, which was equal to the coarsest resolution of the burn severity dataset

From: Bat roosting strategies and torpor expression in a wildfire-affected landscape during summer

Contextual variables

Environmental variables used in analysis

Burn variables used in analysis

Bat frequency

Distance from capture site (m)

Elevation (m)

Habitat % canopy cover

Habitat tree height (m)

Burn severity

Distance to unburned area

148.172

105

1089

6.7

17.3

Unburned

unburned

148.487

1923

1476

13.5

15.5

Low severity

unburned

148.588

81

1087

19.3

17.5

Unburned

unburned

148.588

231

1133

58.7

17.4

Low severity

far_over_100m

148.588

78

1087

13.7

17.5

Unburned

unburned

148.588

199

1125

64.2

19.3

High severity

far_over_100m

148.588

199

1125

64.2

19.3

High severity

far_over_100m

148.588

120

1112

16.6

13.6

Low severity

near_50m

148.588

120

1112

16.6

13.6

Low severity

near_50m

148.786

2020

1545

46.3

27

Low severity

far_over_100m

148.786

2202

1565

0.6

12.5

Low severity

near_50m

150.905

89

1106

19.6

18.4

Low severity

near_50m

150.905

133

1114

26.1

15.8

Low severity

medium_50_100m

151.058

2400

1588

31

19.7

Low severity

unburned

151.058

2512

1597

13.6

15.3

Low severity

near_50m

151.058

2394

1594

34

31.1

Unburned

unburned

151.418

235

1101

7.6

14.6

Low severity

unburned

151.418

169

1095

3.2

13.7

Low severity

unburned

151.418

183

1098

5.7

18.3

Low severity

unburned

151.418

 

1128

3.2

13.9

Unburned

unburned

151.54

 

1240

37.1

32.4

Low severity

near_50m

151.54

 

1256

18.4

21.3

Low severity

medium_50_100m