Ecological Archives E089-090-A1

Michelle J. Greenwood and Angus R. McIntosh. 2008. Flooding impacts on responses of a riparian consumer to cross-ecosystem subsidies. Ecology 89:1489–1496.

Appendix A. Physical characteristics of the study rivers.

TABLE A1. Physical characteristics of the study rivers. A high river disturbance index (RDI) score (Pfankuch 1975) indicates a river more disturbed by floods. Grid references refer to Infomap 260 published by the Department of Survey and Land Information, New Zealand.

River

Grid ref.

RDI

Mean (± 1SE) proportion
tracer rocks moved
in 12 months

Mean (± 1SE) bank
substrate size (mm)

Proportion of
600 m of bank
covered by
>5% vegetation

Width
(m)

Porter River‡

K34:065728

  60

0.03 (0.01)

108 (6)

0.44

8.2

Dry Stream

K34:055714

  82

0.12 (0.05)

88 (5)

0.21

2.1

Thomas River

K34:056776

  65

0.14 (0.03)

75 (6)

0.44

1.9

Coralyn Spring†‡

K34:036972

  53

  0.0

95 (10)

0.58

8.2

Broken River‡

K34:070783

  60

0.04 (0.01)

107 (7)

0.22

6.5

Cave Stream‡

K34:064801

  52

0.01 (0.01)

93 (5)

0.83

3.0

Craigieburn

K34:085845

  55

0.2 (0.01)

112 (11)

0.93

5.0

Waimakariri River

K34:075994

110

0.6 (0.11)

74 (7)

0.0

20.0

Ribbonwood Stream

K34:102910

  91

0.36 (0.09)

68 (5)

0.0

2.1

Cass River

K34:079970

  67

0.3 (0.05)

63 (5)

0.01

4.1

RJ Spring†‡

L34:134979

  50

0.0

71 (4)

0.72

1.9

Broad Stream

K34:003964

  99

0.35 (0.10)

82 (7)

0.0

2.8

Bruce Stream

K34:985966

  99

0.47 (0.09)

92 (8)

0.0

5.9

† unofficial name
‡ used in habitat manipulation experiment

LITERATURE CITED

Pfankuch, D. J. 1975. Stream reach inventory and channel stability evaluation. USDA Forest Service, Missoula, Montana, USA.


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