Abstract

SummaryTwo series of photographs taken at fixed locations in 1970 and 1994 document the development of woody vegetation under changing ecological conditions in Tsavo National Park, Kenya, over nearly 25 years. The original vegetation was altered considerably through the combined influences of elephants and fire in the 1960s and 1970s. Meanwhile, the elephant population has decreased substantially as a result of large‐scale poaching for ivory during the 1980s. Presumably as a result, trees and shrubs have reappeared in large numbers at the majority of locations sampled. The influence of fire in impeding regeneration of woody vegetation has also been documented locally.RésuméDeux séries de photographies prises à des endroits précis en 1970 et en 1994 illustrent l'évolution de la végétation ligneuse dans des conditions écologiques en mutation au Pare National de Tsavo, au Kenya, en près de vingt‐cinq ans. La végétation originale était très abîmée à cause de l'influence cumulée des éléphants et des feux dans les années ′60 et ′70. Cependant, la population des éléphants a été fortement réduite par le braconnage pour l'ivoire qui a sévi sur une grande échelle pendant les années ′80. Conséquence probable, les arbres et les buissons sont réapparus en grand nombre à la plupart des endroits de prises de vue. Localement, on a aussi pu constater l'influence des feux qui empéchent la régénération de la végétation ligneuse.

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