Title: Macro-invertebrate population changes during composting of organic waste at Alesinloye Market, Ibadan

Authors: Oluwatobi D. Oni; Elizabeth Omoladun Oloruntoba; Mynepalli K.C. Sridhar; Taiwo B. Hammed; Kolade Tahiru Ibrahim; K.O.K. Popoola

Addresses: Department of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria ' Department of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria ' Department of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria ' Department of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria ' Department of Zoology, University of Ibadan, Ibadan, Nigeria ' Department of Zoology, University of Ibadan, Ibadan, Nigeria

Abstract: Composting has proven to be most effective in combating large organic waste generation in urban settings like Ibadan. This study was designed to determine macro-invertebrate population changes as indicator for stages of organic waste composting. Mixture of cow rumen (240 kg) and vegetable (80 kg) waste were shared equally into aerated (A) and non-aerated (B) windrows. Composite samples were taken twice from the each windrow for eight weeks. Macro-invertebrates were separated from compost by spread and Berlese funnel methods and species biodiversity by Simpson's (D) and Shannon-Weiner (H) indices. Data were analysed using descriptive statistics and t-test at 5% level of significance. Dipteran, Coleopteran and Acarina population changes were predominantly observed. Biodiversity scores of D and H were 0.21; 1.89 in A and 0.19; 1.12 in B. Windrow B had more species abundance than A. Successive changes in macro-invertebrate population can be used with physico-chemical parameters during composting process.

Keywords: composting; macro-invertebrate; windrow; biodiversity; Berlese; spread method; Alesinloye Market; municipal solid waste; aeration; organic waste.

DOI: 10.1504/IJAITG.2020.106010

International Journal of Agriculture Innovation, Technology and Globalisation, 2020 Vol.1 No.3, pp.266 - 284

Received: 24 Nov 2018
Accepted: 13 May 2019

Published online: 24 Mar 2020 *

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