Species Diversity And Abundance Of Birds Of Addis Ababa Bole International Airport

Ecological investigation of species diversity and abundance of birds was conducted fromrnAugust 2010 to March 2011 in Addis Ababa Bole International Airport. Transect count andrnpoint count methods were used to investigate the abundance of birds. Observation wasrnconducted by periodically walking along the study area early in the morning and late in thernafternoon. Different diversity indices and statistical methods (Chi-square test and correlation)rnwere used to analyze data collected during the field survey. Movement patterns, seasonal andrntemporal bird distribution as well as birds strike records were investigated. A total of 74 birdrnspecies grouped under 13 orders and 31 families were recorded. August had the lowest speciesrndiversity (H’=3.71), species evenness (E=0.61) and species richness (41). The highest speciesrndiversity, evenness and richness were recorded in December (H’=4.06), January (E=0.74) andrnSeptember (61), respectively. Variation in abundance of birds was statistically significantrnbetween seasons and months. Abundance score of uncommon bird species was high bothrnduring the wet and dry seasons using encounter rate. Appropriate management of birdrnattractant sites is very important to discourage birds from the airport.rnKey words: Abundance, bird strike, management, species diversity

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