 Reference Base  Black rhinoceros (Diceros bicornis (L.)): population size... |
|
Kiwia, H.D., 1989. Black rhinoceros (Diceros bicornis (L.)): population size and structure in Ngorongoro Crater, Tanzania. African Journal of Ecology 27: 1-6, fig.1, tables 1-2
|
|
|
|
| |
| Location: |
Africa - Eastern Africa - Tanzania |
| Subject: |
Ecology - Population |
| Species: |
Black Rhino |
 |
|
Table 2. Sex and age ratios of Black Rhinoceros inTanzania and Kenya (all individuals known by. observer)
SampleSex ratio Age ratio Source of
Location size Male:Female Cow:Calf information
Ngorengoro Crater 24 1:1.2 100:45 This study
105 1: 1.1 100:72 Goddard. (1967a)
Serengeti Plains 63 1:1.0 100:79 Frame, ( 1980)
Olduvai Gorge 74 1:0.8 100:79 Goddard. (1 967a)
Masai Mara 97 1:0.8 - Mukinya, (1973)
Tsavo medium density 52 1:1.2 - Goddard. (1970)
Tsavo high density 124 1:1.0 100:79* Goddard, (1970)
Tsavo high density 89 1 0.8 - Goddard. (1970)
Tsavo high density 119 1:0.9 - Goddard, (1970)
Tsavo high density 77 1:1.0 - Goddard. (1970)
Note: All unsexed calves not included. *all Goddard's data combined.
Likewise the cow:calf ratio did not differ significantly from those recorded in four other studies (X2 = 0.91, P> 0.05) (Table 2).
|
|
|
File available
details
Original text on this topic: