Species Diversity and Abundance of birds of Addis Ababa bole International Airport
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Date
2011-07
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Addis Ababa University
Abstract
Ecological investigation of species diversity and abundance of birds was conducted from
August 2010 to March 2011 in Addis Ababa Bole International Airport. Transect count and
point count methods were used to investigate the abundance of birds. Observation was
conducted by periodically walking along the study area early in the morning and late in the
afternoon. Different diversity indices and statistical methods (Chi-square test and correlation)
were used to analyze data collected during the field survey. Movement patterns, seasonal and
temporal bird distribution as well as birds strike records were investigated. A total of 74 bird
species grouped under 13 orders and 31 families were recorded. August had the lowest species
diversity (H’=3.71), species evenness (E=0.61) and species richness (41). The highest species
diversity, evenness and richness were recorded in December (H’=4.06), January (E=0.74) and
September (61), respectively. Variation in abundance of birds was statistically significant
between seasons and months. Abundance score of uncommon bird species was high both
during the wet and dry seasons using encounter rate. Appropriate management of bird
attractant sites is very important to discourage birds from the airport.
Key words: Abundance, bird strike, management, species diversity
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Keywords
Abundance, bird strike, management, species diversity