Ecological Archives E088-014-A4

C. L. Burcher, H. M. Valett, and E. F. Benfield. 2007. The land-cover cascade: relationships coupling land and water. Ecology 88:228–242.

Appendix D (TableD1). Abiotic and biotic response variables significant in at least one cascade path.

Metric type

Metric

Metric code

Units

Mean

SE

Land-cover

         

Forest

% forest in 60-min TTZs

Fo 60

%

46

17

 

% forest in 120-min TTZs

Fo 120

%

56

16

Urban

         
 

% urban in 120-min TTZs

Ur 120

%

6

1

Agriculture

         
 

% agriculture in 60-min TTZs

Ag 60

%

42

14

 

% agriculture in 120-min TTZs

Ag 120

%

35

12

 

% agriculture in 100-m corridor

Ag corr

%

48

15

 

% agriculture in whole watershed

Ag ws

%

23

6

Hydrologic

         
 

Baseflow discharge

Qbf

L/s

40

5.5

 

Discharge / stage rating curve slope

RCsl

-

0.91

0.06

Geomorphic

         
 

Mean bank height year 1

Bh1

m

1.3

0.07

 

Change in incision ration between years

ΔIR

º

3.5

1.5

 

Width / depth ratio

w:d

-

29

4.8

Erosional

         
 

Baseflow TSS Inorganic Matter

TSSbfIM

g/L

0.29

0.20

 

Stormflow TSS Inorganic Matter

TSSsfIM

g/L

0.39

0.23

Substrate

         
 

Substrate D50

SubD50

mm

15.9

2.3

 

Substrate percent organic matter

SubOM

%

6.3

0.2

 

Substrate percent fines

SubFines

%

14

2.9

Fish

         

Summary

Taxa richness

FishTR

no./m2

7.6

0.7

 

Total density

FishDen

no./m2

1.1

0.2

Distributional

Cosmopolitan density

Cos

no./m2

1.8

0.4

Trophic

Herbivore density

Herb

no./m2

0.24

0.03

Reproductive

Nest associate density

NA

no./m2

0.5

0.2

 

Non-guarder density

NG

no./m2

0.24

0.05

Macroinvertebrate

         

Summary

Taxa richness

MacTR

no./m2

11

1.2

 

Total density

MacDen

no./m2

677

134

 

Midge density

Midge

no./m2

175

37

 

Shredder density

SH

no./m2

11

6

Trophic

Scraper density

SC

no./m2

178

49

 

Collector-gatherer density

CG

no./m2

192

53

 

Collector-filterer density

CF

no./m2

90

19



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