Ecological Archives E096-149-A1

Joseph A. LaManna, Amy B. Hemenway, Vanna Boccadori, and Thomas E. Martin. 2015. Bird species turnover is related to changing predation risk along a vegetation gradient. Ecology 96:16701680. http://dx.doi.org/10.1890/14-1333.1

Appendix A. Table with detailed information forest stands studied in western Montana, USA.

Table A1. Forest stands studied in western Montana, USA. Variables include stand area (ha), site (MTH = Mt. Haggin Wildlife Management Area, and L&C = Lewis & Clark National Forest), sample size of systematic vegetation plots (n), mean basal area density (m²/ha) of four variables used in PCA (conifer stems, conifer trees, deciduous stems, and deciduous trees), percent conifer composition, as well as mean (± SE) of PCconifer (PCcon) and PCdeciduous (PCdec) from each forest stand for observational analyses. Stands are arranged by increasing conifer composition (PCconifer).

Forest Stand

Area (ha)

Site

n

Con. Stem

Con. Tree

Dec. Stem

Dec. Tree

% Con.

PCcon

PCconSE

PCdec

PCdecSE

I

2.20

L&C

19

0.03

0.14

3.62

18.80

0.8%

-1.16

0.12

0.83

0.19

G

11.83

L&C

77

0.05

2.58

0.95

15.44

13.8%

-1.12

0.05

0.42

0.07

H

3.92

L&C

25

0.19

0.29

2.16

11.70

3.3%

-1.09

0.09

0.38

0.14

A

12.13

L&C

68

1.42

0.49

0.61

5.29

24.4%

-0.89

0.04

-0.58

0.05

F‡

7.20

L&C

24

1.05

0.53

2.24

10.42

11.1%

-0.77

0.08

0.43

0.09

B

18.13

L&C

102

3.11

1.00

0.43

5.02

43.0%

-0.63

0.05

-0.79

0.05

C

9.54

L&C

62

1.36

1.86

1.32

5.21

33.0%

-0.55

0.06

-0.23

0.05

2†

6.76

MTH

37

1.40

5.93

1.60

9.25

40.3%

0.06

0.12

-0.03

0.17

1†

12.87

MTH

60

1.46

4.61

3.17

10.53

30.7%

0.21

0.08

0.62

0.11

3‡

6.71

MTH

43

0.73

7.62

4.15

11.40

34.9%

0.27

0.08

0.92

0.08

1A†

6.78

MTH

38

2.24

4.16

3.07

7.73

37.2%

0.38

0.09

0.41

0.12

E‡

5.79

L&C

34

3.74

3.07

2.24

4.01

52.2%

0.43

0.07

-0.35

0.07

D‡

6.81

L&C

51

4.04

5.81

2.22

5.63

55.6%

0.63

0.06

-0.07

0.05

N

6.65

L&C

45

5.09

4.10

3.37

5.29

51.5%

0.79

0.11

-0.09

0.13

5‡

9.01

MTH

45

2.09

11.16

3.20

5.84

59.4%

0.83

0.08

0.09

0.08

O

1.50

L&C

13

6.32

9.25

2.82

3.59

70.8%

1.37

0.22

-0.27

0.22

L

5.57

L&C

30

9.96

7.26

3.78

4.39

67.8%

1.46

0.16

-0.43

0.20

Q

12.58

L&C

54

6.85

11.03

3.62

5.80

65.5%

1.54

0.10

0.14

0.10

M

5.85

L&C

33

8.32

11.37

3.92

7.27

63.8%

1.70

0.14

0.34

0.12

Total:

151.8

860

† Conifers were removed from stands in Fall 2010; only data from years prior to removal were used in observational analyses.

‡ Control stands for conifer removal experiment; data from these stands were used in observational analyses.

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