 Reference Base  A review of some life history features of the large herbi... |
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Mentis, M.T., 1972. A review of some life history features of the large herbivores of Africa. Lammergeyer 16: 1-89
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| Location: |
World |
| Subject: |
Ecology - Population |
| Species: |
Black Rhino |
The following figures show little departure from a sex ration of 1: 1 (from Goddard 1967, 1970; Hitchins 1968):
Male Female
Adults 37 29
22 19
87 81
167 170
Immatures 19 21
& junveniles 18 14
16 15
Immatures 27 42
Calves 67 52
Population 29 28
Population sex ratio in Kaokoveld was 1: 0.87. Elsewhere the ratio deviates even further from parity, the explanation given being that females with calves at foot are particularly aggressive and therefore persecuted by the local inhabitants.
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