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Pettifer HL. 1981. Aspects on the ecology of cheetahs on the ...

Pettifer HL. 1981. Aspects on the ecology of cheetahs on the ...

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ECOLOEI OE CEEEIAES<br />

(Tester 19?1). Plots trith angles les! than 10o were reiected and readings<br />

were taken as close to <strong>the</strong> anlmal as feasibly posaible without<br />

causing any disturbance.<br />

A fur<strong>the</strong>r problem <strong>on</strong> Sulkerbosland nas caused bv <strong>the</strong> leflecti<strong>on</strong> <strong>of</strong> sig-<br />

nsls <strong>of</strong>f <strong>the</strong> mountainous terrain. In 50 t.lal plots whele <strong>the</strong> cheetah8<br />

oere flushed after <strong>the</strong> leadings had been'taken, it was lound that al I<br />

plots except 2 fell within 100 m x 100 |l| <strong>of</strong> true locati<strong>on</strong>' <strong>the</strong> remaining<br />

z plots being 200 m out <strong>of</strong> true locati<strong>on</strong>. Botl <strong>the</strong>se plots were taken<br />

frorn distances over 4 lsn lroo <strong>the</strong> anlmal.<br />

Whe!e posslble, daily plois lf.!e takeo <strong>on</strong> all radio marked cheetaha'<br />

Each selected cheetsh was periodlcally track€d <strong>on</strong> a routine ba8is and<br />

ell data relevant to th€ <strong>ecology</strong> <strong>of</strong> <strong>the</strong> cheetshawere recorded' Behavi-<br />

oral aspects and habttat descrlptl<strong>on</strong>s rere lecorded <strong>on</strong>to nicrocasEelte'<br />

For <strong>the</strong> purpose <strong>of</strong> thls paper, ho<strong>the</strong> Fange wes bssed <strong>on</strong> <strong>the</strong> minlmrim area<br />

method (Stickle 195{) anal high utllittti<strong>on</strong> aleas calculated by plotting<br />

<strong>the</strong> geog.Sphical positi<strong>on</strong> o! th6 daily dlurnal restlng sltes <strong>of</strong> all <strong>the</strong><br />

study animels anal by progres!lvely €xcluding successive observat i<strong>on</strong>€<br />

that c<strong>on</strong>tllbut€d <strong>the</strong> most to <strong>the</strong> totsl hotne lang€ slte, u|rtil a deflnite<br />

co!e area remained which c<strong>on</strong>slstGd <strong>of</strong> observat i<strong>on</strong>s thf,t were closely<br />

situateal to each o<strong>the</strong>r. Ttlese calculetl<strong>on</strong>s were mad€ using a Fortran<br />

prog!am <strong>on</strong> a Bulroughs B 6?00 digital cooputer as used by FerguB<strong>on</strong><br />

(1980). The lnitlal plotting <strong>of</strong> <strong>the</strong> localities <strong>of</strong> each ch€etah *as<br />

performed using s Versatec Plottet coupled to a Cyber l?4 digital com-<br />

STUDY ANIMALS<br />

The 1st cheelah was radlo marked <strong>on</strong> 4 July 1978 <strong>on</strong> <strong>the</strong> suikerbosrend<br />

Nature Reserve. The anlmal nas an approximately 18-np-old femele<br />

(Puldey) origtnating from a group <strong>of</strong> 4i <strong>the</strong> o<strong>the</strong>r 3 wer€ relocated to<br />

<strong>the</strong> Eastern Shores Nature Beserv€ ln Natal. On 26 July l9?8, an adult<br />

female (Mary) with 4 3-mo-old cubs was !adio marked, followed bv an<br />

sdult fenale singlet<strong>on</strong> (Rosina) <strong>on</strong> 18 September l9?8. On 23 Sept€mber<br />

l9?8, 2 aalult males ((ojak and setzure) wer€ malked' bringing <strong>the</strong> total<br />

to 3 females and 2 nales, Al I those cheetshs are st I I I under study'<br />

tt25

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