Ecological Archives E091-081-A1

Helen M. Poulos and Ann E. Camp. 2010. Topographic influences on vegetation mosaics and tree diversity in the Chihuahuan Desert borderlands. Ecology 91:1140–1151.

Appendix A. Indicator species for each vegetation type identified by cluster analysis of vegetation plots (n = 600) (P < 0.05 = significant indicator species).

Vegetation type

Gray oak
(n = 60)

Mesic
woodland

(n = 90)

Emory oak
(n = 20)

Piñon pine
(n = 147)

Oak – 
piñon
 – juniper

(n = 106)

Ponderosa
 – sw white
pine

(n = 59)

Cypress
 – fir

(n = 21)

Alligator
juniper
(n = 97)

P value

Abies coahuilensis

0

0

0

0

0

3

40

0

0

Acer grandidentata

0

8

0

0

0

0

0

0

0

Arbutus xalapensis

0

1

0

0

0

2

1

0

0

Calliandra conferta

0

0

0

0

0

0

0

0

0.06

Celtis laevigata

1

0

4

0

0

0

0

0

0.09

Cretagous traceyi

0

8

0

0

0

0

0

0

0.02

Cupressus arizonica

0

1

0

0

0

2

74

0

0

Alnus acuminata

0

2

0

0

0

0

0

0

0.42

Fraxinus velutina

0

4

0

0

0

0

1

0

0.11

Fraxinus cuspidata

0

0

0

0

0

0

0

0

0.06

Fraxinus gregii

0

1

1

0

0

0

0

0

0.01

Juniperus deppeana

2

1

1

8

15

1

0

50

0

Juniperus flaccida

8

0

4

4

0

0

0

0

0.01

Juniperus pinchotii

5

0

1

0

0

0

0

0

0.09

Ostrya virginiana

0

3

0

0

0

0

0

0

0.2

Pinus cembroides

10

0

5

36

16

0

0

15

0

Pinus ponderosa

0

1

0

0

0

62

9

0

0

Pinus strobiformis

0

0

0

0

0

59

21

0

0

Populus angustifolia

0

2

0

0

0

0

0

0

0.41

Populus fremontii

0

2

0

0

0

0

0

0

0.42

Prunus serotina

0

2

0

0

0

1

0

0

0.02

Pseudotsuga menzesii

0

0

0

0

0

13

50

0

0

Quercus arizonica

2

15

0

0

0

1

5

0

0.01

Quercus emoryi

0

0

88

0

0

0

0

0

0

Quercus gambelii

0

2

0

0

0

0

0

0

0.29

Quercus gracilliformis

1

8

0

0

0

0

0

0

0.02

Qeurcus gravesii

2

58

1

1

0

1

0

0

0

Qeurcus grisea

31

3

0

11

30

0

1

5

0

Quercus hypoleucoides

0

3

0

0

4

2

0

0

0.34

Quercus laceyi

0

16

0

0

0

1

4

0

0

Quercus mohriana

0

25

0

0

0

2

0

0

0

Quercus meuhlembergii

0

2

0

0

0

1

2

0

0.39

Quercus oblongifolia

0

8

0

0

0

0

1

0

0.05

Quercus pungens

1

0

0

0

0

0

2

0

0.37

Quercus rugosa

0

5

0

0

0

3

12

0

0.01

Quercus shumardii

0

0

0

2

0

0

0

0

0.3

Quercus sideroxyla

0

1

0

0

0

66

6

0

0

Quercus tardifolia

0

3

0

0

0

0

0

0

0.19

Quercus turbinella

0

0

0

1

0

0

0

0

1

Quercus vaseyana

0

0

0

0

0

2

0

0

0.2

Salix nigra

0

3

0

0

0

0

0

0

0.22

Stryax youngiae

0

0

0

0

0

1

3

0

0.21

Tila americana

0

13

0

0

0

0

0

0

0


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