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| Location: |
Africa - Eastern Africa - Kenya |
| Subject: |
Ecology - Census Methods |
| Species: |
Black Rhino |
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KREMu surveys - aerial. The aerial surveys were conducted along straightline transects in which the two rear-seat observers counted all animals observed within a strip of land 112 m wide on each side of the aircraft while the Cessna 185 aircraft flew at 91 m (300 ft) above ground level at a speed of 150 kph. Transects were spaced 10 km apart in 1977 (2.2% sampling intensity) and 5 km apart in 1978 (4.4% sampling intensity). During 1980 and 1981 surveys were conducted with two Parienavia aircraft. The 1980 strip width was 125 m on each side of the aircraft (5.0% sampling intensity), while in 1981 northern Kenya surveys, the strip width was 200 m, giving a sampling intensity of 8.0%.
The 1977 and 1978 surveys of southern Kenya were conducted during the wet (January-May) season while the 1980 surveys were during the dry (July-October) season. The northern Kenya surveys in 1977 and 1978 were dry (August-October) season while the 1981 surveys were wet (February-April) season. This provided useful information on the distributions of animals during both wet and dry seasons.
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Monitoring elephant and rhino trends in Kenya
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