. Bonner zoologische Monographien. Zoology. SHORT \ HORM. \\ II \l NA Ol AN I Tl AND S1ASONAI WOODLAND IN FIG. 3. The acacia crossing in flood 10 May 1985. Hörne is at left, on the road that connects GMF with Center. Note the muddy water; woodland is of Acacia gerrardii, with Euclea spp. This is the site of long-lasting but temporary pond after heavy rains. Photo to NE from S of crossing. trees (thus depriving the soil of their nutrients), spo- radic charcoal-making activities, and the clearing of some places dominated by Tarchonanthus camphora- tus for production of leleshwa oil. Lele


. Bonner zoologische Monographien. Zoology. SHORT \ HORM. \\ II \l NA Ol AN I Tl AND S1ASONAI WOODLAND IN FIG. 3. The acacia crossing in flood 10 May 1985. Hörne is at left, on the road that connects GMF with Center. Note the muddy water; woodland is of Acacia gerrardii, with Euclea spp. This is the site of long-lasting but temporary pond after heavy rains. Photo to NE from S of crossing. trees (thus depriving the soil of their nutrients), spo- radic charcoal-making activities, and the clearing of some places dominated by Tarchonanthus camphora- tus for production of leleshwa oil. Leleshwa bushes and trees, when cut to the ground, regrow slowly; the humus around them washes away, surrounding bushland habitat is disrupted and most wildlife is ad- versely affected. Coppicing leleshwa for firewood has been attempted (Kennedy 1998). Bushland adjacent to cutover areas is opened up, and its edges are deg- raded, with negative effects upon it and its wildlife. Overstocking, burning and selective removal of trees, with various constructions of hides, boats, and pri- vate and tourist lodges, have caused deterioration of the Mukutans riverine woods; remaining trees have attracted the attention of elephants that push them over to eat leaves and bark, and of honeyhunters, who carve out bee-hives, weakening the trees. Areas once heavily covered with bushed woodland, particularly about Kuti, have been degraded, exposing extensive bare soil. Heavy rains now cause widespread flash floods with sheet erosion of topsoil that washes away (Fig. 3), and silts up the dams (see accounts of White- backed Duck and Red- knobbed Coot). Geology, soils. Describing the vegetation of the ranch, Muasya et al. (1994) treated its geology and soils. Miocene to Recent deposition, uplift and volcanic ac- tivity have occurred. Many N-S fault lines are sites of seeps and springs. The soils have resulted from ac- tive erosion and volcanic activity associated with the evolution of the Rift Valley a


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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology