Study On Insect Diversity Of Menagesha Forest And Bihere Tsige Public Park In Wet And Dry Seasons Using Sweeping Net

Menagesha forest and Bihere Tsige Public Park contain diverse forms of insects. Therndiversity, distribution, frequency, abundance and habitat association of these insectsrnwere investigated using quadrate and transect walk methods during the wet and dryrnseasons.rnThe presence of 33 families of insects in Menagesha forest and 35 families in BiherernTsige Public Park were recorded. In wet season more evenness and diversity werernobserved in the natural Menagesha forest. In the dry season, maximum insect diversityrnand evenness was recorded in the artificial Menagesha forest. Flowers and grass mixedrnvegetation of the park has the highest insect diversity and mixed vegetation of the parkrnhad the highest evenness in the wet season. Highest diversity of the park’s dry season wasrnfound in grassland habitats, while high evenness was recorded in mixed vegetation.rnBased on Simpson’s similarity index, the highest similarity was observed between naturalrnand artificial habitats of the forest. Flower and grass mixed vegetation and grasslandrnvegetation showed the highest similarity in the park. Grassland in the park and artificialrnforest in the forest showed the highest Margalefs Richness Index value.rnSPSS analysis showed that the highest habitat association was recorded for grasslandrnhabitats in both seasons in the forest. In the wet season, the highest habitat associationrnwas recorded in grassland habitat of the park. In the dry season, insects showed nornassociation to any of the habitats. T test results for insect diversity revealed nornsignificance difference between seasons and intra-seasons in the park and the forest.rnAbundance of food, species of vegetation, stability of the habitats and human activitiesrndetermined insect diversity at the study areas. Investment activities were determintal tornthe insect diversity in the forest.

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