|
Burrows
|
Drone survey
|
Total
|
---|
Potentially active
|
Inactive
|
---|
(a) Grassland
|
Ground survey
|
Potentially active
|
46
|
7
|
53
|
Inactive
|
20
|
12
|
32
|
|
Total
|
66
|
19
|
85
|
(b) Tussock grassland
|
Ground survey
|
Potentially active
|
12
|
2
|
14
|
Inactive
|
9
|
4
|
13
|
|
Total
|
21
|
6
|
27
|
- Most of the individual burrows observed in the study were detected during both ground and drone surveys of their particular transect. Tables a and b show the numbers of these burrows that were classified as potentially active and/or inactive in each of the two grassy communities. To provide a basis for evaluating agreement of this aspect of the two methods, the marginal proportions in each table were tested for homogeneity using McNemar’s test (see text)