Ecological Archives M078-003-A1

Lorena Gómez-Aparicio and Charles D. Canham. 2008. Neighborhood models of the effects of invasive tree species on ecosystem processes. Ecological Monographs 78:69–86.

Appendix A. Basal area (BA), relative basal area (RBA), mean dbh (dbhmean), and maximum dbh (dbhmax) of trees ≥ 2 cm dbh for the main tree species in each of the three Acer platanoides (ACPL) and Ailanthus altissima (AIAL) study sites.

ACPL

 

Site 1

 

Site 2

 

Site 3

 

Species

BA

RBA

dbh mean

dbh max

 

BA

RBA

dbh mean

dbh max

 

BA

RBA

dbh mean

dbh max

 

Acer platanoides

  2.59

8.72

12.2

47.6

 

5.97

 14.28

25.1

101.8

 

  2.23

5.34

12.9

50.7

 

Acer saccharum

12.25

39.18

10.8

81.6

 

7.56

18.01

10.6

113.4

 

  5.26

11.80

9.06

71.7

 

Acer rubrum

  0.08

0.24

12.3

28.0

 

1.03

2.78

 14.8

46.4

 

  3.05

7.14

13.7

65.1

 

Fraxinus americana

  4.21

13.45

23.5

66.6

 

6.32

16.03

31.8

99.7

 

10.82

24.77

30.9

71.5

 

Pinus strobus

  0.75

2.18

28.6

57.1

 

6.22

14.62

42.7

78.5

 

  5.90

14.46

31.1

94.5

 

Prunus serotina

  3.04

9.29

28.5

62.8

 

5.37

13.44

29.5

69.0

 

10.04

23.19

34.1

75.5

 

Quercus rubra

  7.23

22.02

32.9

98.7

 

6.78

16.06

39.6

94.6

 

  4.94

11.78

37.3

75.7

 

Others

  1.63

4.97

9.3

56.7

 

1.77

4.78

8.1

38.4

 

  0.63

1.54

11.5

45.5

 

Total BA

31.78

       

41.02

       

42.87

     

AIAL

 

Site 4

 

Site 5

 

Site 6

 

Species

BA

RBA

dbh mean

dbh max

 

BA

RBA

dbh mean

dbh max

 

BA

RBA

dbh mean

dbh max

 

Acer saccharum

7.11

21.08

  23.3

  143.0

 

10.70

35.65

9.5

79.1

 

4.41

19.29

12.6

80.2

 

Ailanthus altissima

9.65

31.22

19.9

54.8

 

  2.36

 28.39

21.6

37.9

 

8.18

32.33

24.6

47.3

 

Betula spp.

0.11

0.31

19.7

43.8

 

  2.17

7.67

22.2

54.0

 

2.78

9.38

20.7

46.2

 

Fraxinus americana

4.16

13.04

20.8

66.9

 

  1.68

6.41

25.9

56.0

 

2.97

17.35

14.9

40.0

 

Prunus serotina

0.40

1.21

15.7

35.7

 

2.70

9.06

31.6

67.6

 

0.94

4.20

16.1

64.3

 

Quercus rubra

1.56

4.97

108.5

108.5

 

0.45

1.56

41.3

72.2

 

0.65

2.08

33.2

78.7

 

Robinia pseudoacacia

5.78

20.15

50.0

101.8

 

6.24

19.74

41.6

96.5

 

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Others

2.58

8.13

13.5

55.8

 

3.56

11.52

13.1

58.8

 

3.35

13.51

12.4

69.5

 

Total BA

31.35

       

29.82

       

23.28

     

Note: Only tree species with a RBA ≥ 5% at least in one of the three sites invaded by ACPL or AIAL are shown.



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