Hashimoto / Poster

Diversity in forest types and habitat use by chimpanzees in the Kalinzu Forest, Uganda

Chie Hashimoto ⁽¹⁾, Takeshi Furuichi ⁽²⁾ and Yasuko Tashiro ^(1)
(1)Kyoto University, ⁽²⁾ Meiji-Gakuin University

     The Kalinzu Forest Reserve, covering an area of 137 km2, lies in western Uganda (30o07'E, 0o17'S). There inhabit 6 species of diurnal primates: chimpanzee (Pan troglodytes schweinfurthii), blue monkey (Cercopithecus mitis), red tail monkey (Cercopithecus ascanius), l'hoest's monkey (Cercopithecus lhoesti), black and white colobus (Colobus guereza), and anubis baboon (Papio anubis). Following an extensive survey of Uganda by Kano in 1992, Hashimoto carried out a population estimate for chimpanzees in the Kalinzu Forest in 1992-1993, and found that the density of chimpanzees was considerably high. Since 1997, we have conducted several studies to reveal relationships between habitat use by primates and forest types; including population census of chimpanzees by nest counts, bio mass census for diurnal mammals, vegetation census, census for assessment of fruit abundance, and direct observations of chimpanzees and monkeys. We distinguished 4 forest types in the study area: mixed mature forest, Primary dominan