PAPER TITLE :DRAGONFLIES AND DAMSELFLIES (INSECTA: ODONATA) AS TOOLS FOR HABITAT QUALITY ASSESSMENT AND MONITORING
FUTA JOURNAL OF RESEARCH IN SCIENCE | VOLUME 11 NUMBER 1 2015
Paper Details
- 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