Abstract
SummaryFollowing the recent drastic decline in elephant numbers from nearly 35,000 in 1974 to about 14,000 in 1980 in Tsavo National Park, Kenya, the age structures of selected samples of the remaining elephant population were determined in 1980 using the photogrammetric technique. The results show that the present elephant population consists mostly of juveniles and sub‐adults whose age range is between 1 and 15 years. There is a marked scarcity of adults over 15 years. There have been considerable changes in the age structure among the Tsavo elephants over the last 14 years. This paper analyses the factors that have been responsible for these changes.RésuméSuite au récent et drastique déclin du nombre d'éléphants de presque 35,000 en 1974 à environ 14,000 en 1980 au Parc National de Tsavo (Kenya), les structures d'âge d'échantillons sélectionnés de la population restante furent déterminées en 1980 par la technique photogrammétrique. Les résultats montrent que la population actuelle d'éléphants consiste principalement en juvéniles et subadultes dont les âges varient de l à 15 ans. II y a une raréfaction marqée des adultes de plus de 15 ans. II s'est produit de considérables changements dans la structure d'âge durant les 14 dernières années parmi les éléphants du Tsavo. Cet article analyse les facteurs responsables de ces changements.
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