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| Location: |
Africa - Southern Africa - South Africa |
| Subject: |
Reproduction |
| Species: |
Black Rhino |
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Introduced population Addo NP. Intervals between successive calves have been recorded on 16 occasions. Records exist for seven cows (Table 3).
Table 3. Recorded calving intervals for cows in Addo Elephant N.P.
Cow Calving interval (months) Mean (months)
Brunni 27 + 32 + 52 +34 36
lda (Snr) 46 + 24 35
Doreen 33 + 28 + 33 + 58 38
Lucky Star 114 + 36 (75)
Blom 48
Slattery 35
Ida (jnr) 39 + 28 33
Three of the four longest calving intervals (46, 52 and 114 months) were associated with the initial period of poor conditions at Addo. The mean of the remaining 13 intervals is 35 months. If the two longest of these are regarded as unusually long, then the mean forthe remaining 11 intervals is 32 months. This mean is closer to others recorded in the literature (Mentis, 1972) but nevertheless somewhat longer than the 27 months suggested for wild black rhinoceros (Goddard, 1967; Joubert and Eloff, 1 971).
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Recruitment in a small black rhino population
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