Estimating the trends in herbivore numbers in the Southern District of the Kruger National Park

Abstract

Census data over several years of survey were utilized to develop a sampling strategy in which the species totals for both abundant and rare herbivore species can be estimated should aerial sample surveys be conducted. Correspondence analysis is used towards the development of this sampling strategy. The study pertains to the Southern District of the Kruger National Park. Census data from 1977 to 1989 were used. It is shown that the trends indicated by the census data, are also clearly evident from the estimated totals. Sensusdata afkomstig uit verskeie jare se opnames word gebruik om 'n steekproefstrategie te ontwikkel waarin herbivoorspesies wat volop voorkom asook spesies wat in klein getalle voorkom, beraam kan word indien steekproeflugopnames onderneem sou word. Ooreenkomsanalise word gebruik om hierdie steekproefstrategie te ontwikkel. Die studie het betrekking op die Suidelike Distrik van die Nasionale Kruger Wildtuin. Sensusinligting vanaf 1977 tot 1989 is gebruik. Daar word aangetoon dat die tendense in dieregetalle soos verkry uit die sensusopnames, ook duidelik blyk uit die beraamde totale.