 Reference Base  Some preliminary findings on the population structure and... |
|
Hitchins, P.M., 1968. Some preliminary findings on the population structure and status of the black rhinoceros Diceros bicornis in the Hluhluwe Game Reserve, Zululand. Lammergeyer 9: 26-28, tables 1-4
|
|
|
|
| |
| Location: |
World |
| Subject: |
Ecology - Population |
| Species: |
Black Rhino |
 |
|
Adult is defines as an animal over 4 years old
Immature is approximately less than 4 years old.
Population in Hluhluwe after ground counts in 1961 and 1967
Sample,Adult,Immature,Total
,Male,Female,Total,Male,Female,Unsexed,
1963,28
40%,31
44.3 %,59
84.3 %,5
7.1 %,3
4.3 %,3
4.3 %,70
1966-
July,28
42.4 %,26
39.5 %,54
81.9 %,7
10.6 %,5
7.5 %,0,66
1967
January,31
47.0 %,24
36.4 %,55
83.4 %,4
6.1 %,7
10.6 %,0,66
From the table, it shows that there is no difference in the proportions of immature animals in the three samples. The proportions of immature animals in the three samples are 15.7 %, 18.1 % and 16.7 %. Out of a total of 41 animals counted from the air on 13 Jan 1967, 7 (17 %) were immature.
Different age classes
Sample,Class,Total
,< 1 year,1-2 years,2-3 years,3-4 years,
1963,4 - 36.4 %,3 - 27.3 %,4 - 36.4 %,,11
1966,2 - 16.6 %,1 - 8.3 %,5 - 41.7 %,4 - 33.4 %,12
1967,2 - 18.2 %,3 - 27.3 %,4 - 36.4 %,2 - 18.2 %,11
End
|
|
|
File available
details
Original text on this topic: