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Diversity of insects across levels of anthropogenic disturbance in Kathmandu Valley
Meena Saru, Deepa Kumari Poudel, Susma Giri

Last modified: 2017-09-04

Abstract


Insects are the most diverse group of living organisms, with important roles as pollinators, biocontrol agents or bioindicators of disturbance. Some are also important pests. Among various factors, anthropogenic interference has been well documented to alter resource availability including habitat and food thereby ultimately affecting the distribution of insects. Therefore, investigating insect distribution across levels of anthropogenic disturbance may be important to assess the impacts of human disturbance on insect diversity. We collected insect species at Ratna Park, a human-managed park located at the heart of Kathmandu city and in Kathmandu suburbs (randomly selected locations). Samples were collected from March to August 2017 with the use of bowl traps and sweep-nets. Highest insect abundance occurred in April and May at Ratna Park, but varied within sites in suburb areas. In both habitat types, Diptera was the most abundant order captured followed by Hymenoptera and then either Coleoptera or Lepidoptera.

Key words: pollinators, bio-indicators, ectothermic, order, dominant, suburbs


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