Table 2. Comparison of the linear index of abundance (pairs/1 km) of the most numerous bird (> 1pair/1 km) species on transects in the pristine woodland and the Kalahari ranch woodland.
Tabla 2. Comparación del índice lineal de abundancia (parejas/1 km) de especies de aves más numerosoas (>1 pareja/1 km) en transectos de la zona inalterada y en el rancho de la sabana arbolada del Kalahari.
|
Overall |
September |
||||
Species |
Pristine (12 km) |
Ranch (10 km) |
X2-test |
Pristine (7.5 km) |
Ranch (7.5 km) |
X2-test |
Acacia pied barbet |
0.9 |
0 |
13.6** |
0.4 |
0 |
|
Accipiter sp. |
0.1 |
0 |
|
0 |
0 |
|
African golden oriole |
0 |
0.5 |
|
0 |
0 |
|
African hoopoe |
3.8 |
0 |
56.2** |
1.1 |
0 |
|
African paradise flycatcher |
0.3 |
0.6 |
|
0 |
0 |
|
Arnott's chat |
0.3 |
0 |
|
0 |
0 |
|
Arrow-marked babbler |
1.8 |
0.3 |
17.1** |
0.4 |
0 |
|
Bateleur |
0.1 |
0 |
|
0 |
0 |
|
Bearded woodpecker |
0.3 |
0.2 |
|
0 |
0 |
|
Black flycatcher |
0.1 |
0 |
|
0 |
0 |
|
Black-backed puffback |
1.6 |
0.7 |
6.9** |
0.3 |
0.4 |
|
Black-chested prinia |
3.8 |
0.1 |
52.5** |
0.7 |
0.1 |
|
Black-headed oriole |
0 |
0.1 |
|
0 |
0 |
|
Blue waxbill |
2.7 |
0.6 |
22.0** |
0.4 |
0 |
|
Bradfield's hornbill |
0.3 |
0 |
|
0.1 |
0 |
|
Broad-billed roller |
0.1 |
0 |
|
0 |
0 |
|
Brown snake eagle |
0.3 |
0 |
|
0 |
0 |
|
Brown-headed tchagra |
1.6 |
0.2 |
17.0** |
0.8 |
0 |
|
Brown-hooded kingfisher |
0.2 |
0 |
|
0 |
0 |
|
Brubru |
2.1 |
0 |
31.1** |
0.4 |
0 |
|
Cape penduline tit |
0.1 |
0 |
|
0 |
0 |
|
Cape staling |
3.5 |
0.3 |
41.3** |
0.9 |
0.1 |
|
Cape turtle dove |
10.7 |
4.4 |
50.2** |
3.6 |
1.2 |
9.0** |
Cardinal woodpecker |
2.2 |
0.4 |
10.0** |
0 |
0 |
|
Carmine bee-eater |
1 |
0 |
|
0 |
0 |
|
Chinspot batis |
2.7 |
0.8 |
17.8** |
1.1 |
0.1 |
|
Crested barbet |
0.3 |
0 |
|
0.4 |
0 |
|
Crested francolin |
0.6 |
0.2 |
|
0 |
0.1 |
|
Crested Guineafowl |
0 |
1.0 |
10.0** |
0 |
0 |
|
Crimson-breasted shrike |
1.1 |
0.1 |
12.8** |
0.1 |
0.1 |
|
Dark chanting goshawk |
0.2 |
0 |
|
0 |
0 |
|
Dark-caped bulbul |
1.6 |
0.7 |
6.9** |
1.2 |
0 |
|
Dickinson's kestrel |
0.2 |
0 |
|
0 |
0 |
|
Dusky flycatcher |
0.3 |
0 |
|
0.1 |
0 |
|
Emerald-spotted dove |
4.1 |
3.1 |
5.5* |
1.1 |
0.5 |
1.3 |
Fawn-coloured lark |
0.1 |
0 |
|
0 |
0 |
|
Fork-tailed drongo |
4.8 |
1.5 |
30.3** |
0.8 |
1.1 |
0.3 |
Golden-breasted bunting |
0.1 |
0.1 |
|
0 |
0.1 |
|
Golden-tailed woodpecker |
0.8 |
0.1 |
9.0** |
0.4 |
0 |
|
Greater honeyguide |
0.2 |
0 |
|
0 |
0 |
|
Green-backed pytilia |
0.2 |
0.1 |
|
0 |
0 |
|
Grey go-away-bird |
0.1 |
0 |
|
0 |
0 |
|
Grey hornbill |
3 |
0.2 |
37.3** |
1.6 |
0.1 |
9.3** |
Grey-backed camaroptera |
0 |
1.1 |
11.0** |
0 |
0 |
|
Grey-headed bush-shrike |
0 |
0.1 |
|
0 |
0 |
|
Grey-headed kingfisher |
0 |
0.1 |
|
0 |
0 |
|
Grey-headed sparrow |
1 |
0.2 |
8.7** |
0.3 |
0 |
|
Helmeted Guineafowl |
1.7 |
0 |
25.2** |
0 |
0 |
|
Jacobin cuckoo |
0.1 |
0 |
|
0 |
0 |
|
Lanner falcon |
0.2 |
0 |
|
0 |
0 |
|
Lilac-breasted roller |
1 |
0 |
14.8** |
0.1 |
0 |
|
Little bee-eater |
0.5 |
0 |
|
0.1 |
0 |
|
Long-billed crombec |
1.8 |
0.2 |
19.9** |
0.5 |
0 |
|
Marico flycatcher |
0.3 |
0.9 |
2.1 |
0.1 |
0 |
|
Marico sunbird |
0.2 |
0 |
|
0 |
0 |
|
Meyer's parrot |
0.6 |
0.1 |
|
0 |
0 |
|
Narina trogon |
0.1 |
0.1 |
|
0 |
0 |
|
Nightjar |
0 |
0.1 |
|
0 |
0.1 |
|
Orange-breasted shrike |
0.4 |
0.8 |
0.8 |
0.4 |
0.1 |
|
Pearl-spotted owl |
0.6 |
0 |
|
0.1 |
0 |
|
Pied crow |
0.3 |
0 |
|
0.4 |
0 |
|
Plum-coloured starling |
1.4 |
0 |
21.0** |
0.3 |
0 |
|
Racked-tailed roller |
0.1 |
0.1 |
|
0 |
0 |
|
Rattling cisticola |
2.4 |
0 |
35.5** |
0 |
0 |
|
Red-billed hornbill |
0.5 |
0 |
|
0.5 |
0 |
|
Red-billed oxpecker |
0 |
0.1 |
|
0 |
0 |
|
Red-billed wood-hoopoe |
0.8 |
0.4 |
3.1 |
0 |
0.1 |
|
Red-eyed dove |
0.8 |
1.2 |
0.4 |
0.7 |
0 |
|
Retz's helmetshrike |
0 |
0.5 |
|
0 |
0 |
|
Scarlet-chested sunbird |
0.1 |
0 |
|
0 |
0 |
|
Scimitar-billed wood-hoopoe |
0.8 |
0.1 |
9.0** |
0 |
0 |
|
Southern black tit |
2.1 |
0.1 |
27.4** |
0.9 |
0 |
|
Southern masked weaver |
2.4 |
0 |
35.5** |
0.3 |
0 |
|
Striped kingfisher |
1.1 |
0 |
16.3** |
0 |
0 |
|
Sunbird |
0.7 |
0.3 |
2.8 |
0.4 |
0.8 |
|
Swallow-tailed bee-eater |
0.4 |
0.1 |
|
0 |
0 |
|
Swamp boubou |
4.3 |
0.7 |
41.3** |
1.6 |
0 |
12.0** |
Terrestrial bulbul |
0.5 |
1.1 |
1.6 |
0.5 |
0.1 |
|
Tinkling cisticola |
0.2 |
0 |
|
0 |
0 |
|
Violet-eared waxbill |
0 |
0 |
|
0.1 |
0 |
|
Western banded snake eagle |
0.1 |
0 |
|
0 |
0 |
|
White-bellied sunbird |
1.3 |
0 |
19.2** |
0.5 |
0 |
|
White-bellied sunbird |
0.8 |
0 |
12.3** |
0 |
0 |
|
White-browed scrub robin |
4.8 |
1.5 |
30.3** |
0.9 |
0.1 |
|
White-crested helmetshrike |
0.5 |
0.2 |
|
0.3 |
0 |
|
White-faced owl |
0.1 |
0 |
|
0 |
0 |
|
White-fronted bee-eater |
0.1 |
0 |
|
0.1 |
0 |
|
Yellow white-eye |
0.2 |
0 |
|
0 |
0 |
|
Yellow-bellied apalis |
3 |
0 |
44.4** |
1.1 |
0 |
|
Yellow-bellied bulbul |
1.4 |
0.6 |
6.2* |
0.3 |
0.1 |
|
Yellow-billed kite |
0.3 |
0 |
|
0 |
0 |
|
Yellow-fronted Canary |
1.1 |
2.9 |
6.4* |
0.1 |
0 |
|
Total number of pairs |
1189 |
299 |
|
200 |
43 |
|