Table 1 The use of different bush species as nest cover in the Tibetan Partridge in relation to their general occurrence in the study area
From: Nest distribution and nest habitat of the Tibetan Partridge (Perdix hodgsoniae) near Lhasa, Tibet
Plant species | n | Nest bush height (cm) | Basal area of nesting bush (cm 2 ) | Foliage cover above nest (%) | Availability | Usage | ||
|---|---|---|---|---|---|---|---|---|
Bush density/m 2 | Percent of total bush density | Percent of all nests | Electivity index | |||||
Potentilla fruticosa | 34 | 51.21 ± 13.11 | 3402 ± 2586 | 64.12 ± 15.3 | 0.25 | 17.47 | 60.71 | 0.57 |
Rosa sericea | 2 | 65 ± 49.5 | 7967 ± 3837 | 80 ± 0 | 0.053 | 3.7 | 3.57 | 0.01 |
Rhododendron primulaeflorum | 9 | 68.88 ± 19.37 | 2372 ± 1250 | 72.78 ± 12.53 | 0.256 | 17.92 | 16.07 | −0.03 |
Caragana maximovicziana | 1 | 34 | 560 | 40 | 0.032 | 2.23 | 1.79 | −0.09 |
Berberis hemleyana | 1 | 102 | 620 | 70 | 0.045 | 3.47 | 1.79 | −0.3 |
Salix oritrepha | 4 | 87.25 ± 51 | 3227 ± 1683 | 60 ± 20 | 0.202 | 14.11 | 7.14 | −0.3 |
Sabina pingii | 1 | 45 | 32340 | 30 | 0.09 | 6.27 | 1.79 | −0.54 |
Spiraea tibetica | 1 | 51 | 3705 | 60 | 0.194 | 13.55 | 1.79 | −0.76 |
Rhododendron nivale | 0 | - | - | - | 0.219 | 15.34 | 0 | −1 |
Caragana jubata | 0 | - | - | - | 0.022 | 1.57 | 0 | −1 |
Cotoneaster microphyllus | 0 | - | - | - | 0.062 | 4.37 | 0 | −1 |
Total | 1.425 | 100 | 94.65 | |||||
Nests below herbs (n = 3) | 5.35 | |||||||