 | 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 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| A total of twenty-five rhinos were counted in the area during the study (Table 1). Of the twenty-five rhinos, fifteen were permanent residents of the Crater floor and the remaining ten were temporary visitors. The sex ratio (male:female) for rhinos of all age classes combined was 1: 1.2 and for... |
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| 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 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| The birth rate of the present population was 13.6%, compared to one of 24.1 % reported for the period 1964-1966 by Goddard (1967a). However, during my second visit to the area, a year later (December 1983), five more calves had been born, thus raising the birth rate to 24.2%, a value very close ... |
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| 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 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| 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 ... |
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| Kiwia, H.D. 1989 Ranging patterns of the black rhinoceros ( Diceros bicornis (L.)) in Ngorongoro Crater, Tanzania. African Journal of Ecology 27: 305-312, figs. 1-3, tables 1-3 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| Data for range size determination were collected concurrently with those for other studies (Kiwia, 1983) and not systematically. Location points for nine resident rhinos of different sex and age classes were plotted on 1:50,000 maps with grids of 1 x 1 cm, each equivalent to an area of 0.25 km 2... |
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| Kiwia, H.D. 1989 Ranging patterns of the black rhinoceros ( Diceros bicornis (L.)) in Ngorongoro Crater, Tanzania. African Journal of Ecology 27: 305-312, figs. 1-3, tables 1-3 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Kenya
Ecology - Population
Black Rhino
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| Habitat quality
The distribution of food, water and shelter also determines range sizes. At the Lerai-Gorigor area where the three resources are close together, the resident rhinos have much smaller ranges compared to the Seneto Plain rhinos, where resources are more widely spaced. This was al... |
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| Chakraborty, A.; Bhattacharya, M.; Baishya, G. 1989 A note on the liver of Indian one horned rhinoceros (Rhinoceros unicornis). Indian Veterinary Journal 66 (November): 1071-1072, figs. 1-4 |
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Location:
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Captive - Asia
Ecology - Population
Indian Rhino
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| 47 years, Gauhati Zoo, liver studied |
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| Trense, W. 1989 The big game of the world. Hamburg and Berlin, Paul Parey, pp. 1-413 |
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Location:
Subject:
Species:
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World
Ecology - Population
Indian Rhino
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| 45 years maximum |
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| Kiwia, H.D. 1989 Ranging patterns of the black rhinoceros ( Diceros bicornis (L.)) in Ngorongoro Crater, Tanzania. African Journal of Ecology 27: 305-312, figs. 1-3, tables 1-3 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| The density of the resident rhinos on the Crater floor in 1982 was 0.06 km - 2 a decline of 80.6% since 1966. Table 3 shows that adult rhinos in this study occupy larger ranges than in the previous study, suggesting that adults have increased their range sizes with the decrease in their density.... |
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| 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 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| Table 1. Past and present population size and structure of Black Rhinoceros in Ngorongoro Crater, Tanzania (n=number of rhinos; * residents; ^ temporary visitors)
1964-1966 1981-1982
(Goddard, 1967) (Author)
Age/Sex % of ... |
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| 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 |
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Location:
Subject:
Species:
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Africa - Eastern Africa - Tanzania
Ecology - Population
Black Rhino
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| The birth rate of the present population was 13.6%, compared to one of 24.1 % reported for the period 1964-1966 by Goddard (1967a). However, during my second visit to the area, a year later (December 1983), five more calves had been born, thus raising the birth rate to 24.2%, a value very close ... |
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Notes for: Ecology - Population
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