. Bonn zoological bulletin. Zoology. Fig. 6. Mt. Nimba, at 1750 m (Photo: W. Bohme). ted in 1953, but larger parts are currently explorated for iron ore. The Simandou range is in the transition between the forest and savanna zones, offering a wide range of dif- ferent habitat types. Especially the rain and montane gallery and ravine forest on the western slopes range far more North than anywhere else in West Africa (for more details see Rodel & Bangoura 2004a, b and literature cit- ed therein). Three other forest sites were surveyed in No- vember/December 2003: The Diecke Classified Forest


. Bonn zoological bulletin. Zoology. Fig. 6. Mt. Nimba, at 1750 m (Photo: W. Bohme). ted in 1953, but larger parts are currently explorated for iron ore. The Simandou range is in the transition between the forest and savanna zones, offering a wide range of dif- ferent habitat types. Especially the rain and montane gallery and ravine forest on the western slopes range far more North than anywhere else in West Africa (for more details see Rodel & Bangoura 2004a, b and literature cit- ed therein). Three other forest sites were surveyed in No- vember/December 2003: The Diecke Classified Forest, sit- uated about 25 km south of N'Zerekore, comprises an area of 59,143 ha, with a mean altitude of400-500 m The reserve comprises (almost) primary as well as secondary and highly degraded rainforest (for more details see Rodel et al. 2004). Currently it is under mining prospection ac- tivities. The Mont Bero Classified Forest (26,850 ha) is situated at the northern limit of the rainforest zone, 56 km north of N'Zerekore, 52 km south of Bey la and 40 km west of Lola. Its highest elevation is 1,210 m The dominant habitat types are semi-evergreen forest (Fig. 8) and savanna (Rodel et al. 2004). The Dere Classified For- est is situated at the eastern base of Monts Nimba and di-. Fig. 7. Pic de Fon showing rain forest remnants (Photo: O. Rodel). Bonn zoological Bulletin 60 (1): 35-61 rectly borders Ivory Coast. It comprises lowlands and hill- sides (highest peak Mont Tieton, 740 m ). Original- ly the vegetation consisted of evergreen rainforest, but most of the reserve is now in a very degraded state. From 22 April to 12 Mai 2005 we surveyed several sites in the Prefecture de Boke in north-west Guinea: Sarabaya (Rio Kapatchez), Kamsar et Boullere. The survey focused on the (few) remaining forested sites and humid zones (for details see Hillers et al. 2006, 2008c). CB surveyed fur- ther sites in southeastern Guinea incl. Simandou and Mt. Nimba, the Ziama fo


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