Ecological Archives E096-283-A2

Jesse E. D. Miller, Ellen I. Damschen, Susan P. Harrison, and James B. Grace. 2015. Landscape structure affects specialists but not generalists in naturally fragmented grasslands. Ecology 96:33233331. http://dx.doi.org/10.1890/15-0245.1

Appendix B. Correlation matrix of environmental variables and plant community response variables.

Table B1. Correlation matrix of predictor variables and species richness response variables. Spearman correlation coefficients are on the bottom, and p values are on the top (n = 56). Significant coefficients (P < 0.05) are bolded.

 

org

thc

tf

prox

clay

tsf

slope

cvb

cvr

bare

rock

herb

spec

gen

Organic matter

-

0.23

0.56

0.88

0.00

0.19

0.01

0.41

0.70

0.02

0.77

0.00

0.04

0.00

Total herb cover

0.16

-

0.77

0.24

0.39

0.61

0.17

0.08

0.58

0.03

0.52

0.18

0.43

0.20

Total fires

-0.08

0.04

-

0.40

0.06

0.00

0.07

0.95

0.10

0.30

0.55

0.14

0.05

0.20

Proximity index (1 km)

0.02

-0.16

-0.11

-

0.87

0.11

0.09

0.89

0.75

0.12

0.14

0.35

0.06

0.44

Clay %

0.50

0.12

-0.25

-0.02

-

0.08

0.00

0.50

0.07

0.40

0.07

0.00

0.00

0.00

Time since fire

0.18

0.07

-0.50

0.21

0.24

-

0.00

0.17

0.41

0.01

0.73

0.43

0.35

0.38

Slope

0.33

0.19

-0.25

0.23

0.39

0.38

-

0.62

0.51

0.11

0.35

0.00

0.00

0.00

CV of bare soil

0.11

0.24

0.01

-0.02

-0.09

0.19

0.07

-

0.36

0.00

0.22

0.73

0.12

0.98

CV of rock cover

0.05

-0.08

-0.22

-0.04

0.24

0.11

-0.09

0.12

-

0.89

0.00

0.13

0.23

0.17

Bare soil

-0.31

-0.30

0.14

0.21

-0.12

-0.37

-0.21

-0.74

-0.02

-

0.75

0.29

0.28

0.27

Rock cover

0.04

-0.09

0.08

0.20

-0.25

-0.05

0.13

-0.17

-0.83

0.04

-

0.18

0.17

0.33

Total herb species richness

0.61

0.18

-0.20

0.13

0.64

0.11

0.46

0.05

0.21

-0.14

-0.18

-

0.00

0.00

Specialist richness

0.27

0.11

-0.26

0.25

0.37

0.13

0.51

0.21

0.16

-0.15

-0.19

0.76

-

0.00

Generalist richness

0.70

0.17

-0.17

0.11

0.65

0.12

0.40

0.00

0.19

-0.15

-0.13

0.96

0.61

-


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