FUTA JOURNAL OF RESEARCH IN SCIENCE

VOLUME 11 NUMBER 1 2015

Paper Details

  • Title :DRAGONFLIES AND DAMSELFLIES (INSECTA: ODONATA) AS TOOLS FOR HABITAT QUALITY ASSESSMENT AND MONITORING
  • Author(s) : 1B.W. Adu, 2 S.S. Ogbogu and 3 K.A. Kemabonta
  • Abstract:
Dragonflies and damselflies of Obafemi Awolowo University Ile-Ife, Nigeria were assessed for the purpose of determining the habitat quality of Odonata community in the campus. Adult dragonflies and damselflies were sampled at four study sites at the campus. The study sites are Opa Reservoir spillway stream: OR, Health Sciences: HS, Biological Garden: BG, and Staff Quarters: SQ. A total of 195 individuals comprising of thirtysix species in six families (Aeshnidae, Libellulidae, Calopterygidae, Chlorocyphidae, Coenagrionidae and Platycnemididae) were sampled at the campus. Similarity test on the odonate community structure at the four study sites was conducted using Soerensen’s quotient. OR/BG and OR/SQ were similar, while the other paired study sites (BG/SQ, OR/HS, HS/BG and HS/SQ) were dissimilar. Diversity indices results have Shannon Wiener (H`) value ranging between 2.20 - 3.05, Simpson value ranging between 0.86 - 0.95 and Margalef value ranging between 3.39 – 5.8 for the four sites. BG was the richest study site with the highest values (Shannon Weiner: 3.05, Simpson: 0.95 Margalef: 5.8 and evenness was 0.92), followed by OR (Shannon Weiner: 2.96, Simpson: 0.94 Margalef: 5.41 and evenness was 0.81). The forest environments of Obafemi Awolowo University appeared been depleted yet possessed the habitat quality that sustained some species of Odonata. Nevertheless BG and OR have proven to possess the best community structure for the existence of Odonata fauna in the campus Keywords: Dragonflies, damselflies, human disturbance, forest, community structure