Table 3 Summary of variables used to predict animal richness of taxonomic orders and composition from 873 iron caves in southeastern Amazonia.

From: Caves as wildlife refuges in degraded landscapes in the Brazilian Amazon

Variable type

Variable

Min

Max

Mean

SD

Inside caves, continuous

Elevation

201

842

554.1

153.1

Slope

0.1

38.20

3.73

4.2

Area

5.00

4224

127.9

231.5

Landscape, continuous

HAND

0

595.8

329.5

165.5

Minor loss

0

19.79

2.74

3.99

Mines

0

79

14.92

18.09

Agriculture

0

2.04

0.02

0.17

Pasture

0

40.12

20.58

30.07

Variable type

Variable

Frequency (%)

   

Inside caves, discrete

Resident bats

7

   

Percolating water

51.8

   

Water reservoir

22.9

   

Vegetation

89.5

   

Plant detritus

62.8

   

Roots

96.9

   

Guano

48

   

Feces (non-bats)

38.8

   

Regurgitation balls

1.8

   

Carcasses

8.2

   
  1. Minimum (Min), maximum (Max), mean and standard deviation (SD) values are shown for the continuous variables and frequencies for categorical variables (percentage of pixels in which a variable has value 1 meaning presence). HAND is height above the nearest drainage. Habitat loss (minor, mines, agriculture and pasture) is shown as percentage of pixels in 500-m buffers.