Browsing by Author "MWANSAT, G.S."
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Item Raptors in Yankari Game Reserve and surrounding unprotected area, Nigeria(2014-02-27) ONOJA, J.D.; TENDE, T.; OMOTORIOGUN, TAIWO C.; OTTOSSON, U.; MANU, S.A.; MWANSAT, G.S.A recent survey to estimate the population of raptors in and around Yankari Game Reserve revealed that the reserve still holds a number of raptor species also found in other reserves in West Africa. In total, 886 raptors of 37 species were recorded in the gallery forest and savanna habitats of the reserve, while 155 individuals in 18 species were encountered outside of the reserve. The number of raptors per km of transect in the unprotected area was lower than in the reserve, despite transect speed being slower and raptor detectability probably higher in the unprotected area. Most of the species encountered during surveys were medium-sized raptors. Juvenile raptors were seen only within the reserve, and adults of large species were rare outside it. Vultures seem to have declined since 2008, with two species having apparently been lost from the area.