The present conservation status of Juniperus forests in the South Ethiopian Endemic Bird Area

被引:12
作者
Borghesio, L
Giannetti, F
Ndang'ang'a, K
Shimelis, A
机构
[1] IPLA, I-10132 Turin, Italy
[2] Natl Museums Kenya, Dept Ornithol, Nairobi 00100, Kenya
[3] EWNHS, Addis Ababa, Ethiopia
关键词
Ethiopia; forest; habitat change; Juniperus procera Hochst; Landsat; satellite imagery;
D O I
10.1111/j.1365-2028.2004.00511.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Field survey data and Landsat satellite imagery were used to evaluate the conservation status of two Juniperus forests (Mankubsa and Arero) in the south Ethiopian Endemic Bird Area. Forest cover and dense woodland decreased in both areas between 1986 and 2002, but rates of habitat change and human impact were greater at Mankubsa than at Arero. We suggest that at Mankubsa increased grazing pressure, agricultural expansion, commercial fuelwood and timber exploitation are threatening forest persistence, while most of the degradation at Arero is because of the grazing of domestic animals. Conservation efforts should focus on creating tree plantations and improving forest resource use efficiency at Mankubsa, while at Arero better results could be obtained by improving pasture quality in the habitats surrounding the forest.
引用
收藏
页码:137 / 143
页数:7
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