The first large-scale record of gelada's spatial distribution and population size in Mountain chains of Tigray, Northern Ethiopia.

G whose range was reviously believed to be limited to the Bale and Simien Mountain national parks. However, knowledge of the range of the species is still not satisfactory. investigate the distribution and population size of the gelada in selected highlands in Tigray.

Limnological factors that affect waterbird assemblages in semi-arid reservoirs of Tigray National Regional State, northern Ethiopia.

Published accounts of the conservation of biodiversity indicate that understanding patterns of species distribution and richness is crucial. However, what drives patterns of species composition in a landscape remains debatable. I examined the relationship between limnological characteristics of reservoirs, morpho-edaphic variables, biological variables, and patterns of bird species richness and distribution.