Biodiversity International Journal Research Article Open Access Biodiversity of insects and distribution pattern from Sirumallai Hills, Eastern Ghats, Tamil Nadu, South India Abstract Volume 2 Issue 6 - 2018 In the present investigation is an attempt to assess the relative abundance of insects in Ramar M,1 Mahendran M,2 Kamalakannan S,1 different microhabitats of study site in Sirumalai hill. (i) To identify the composition 2 3 1 of insects fauna at genus level (ii) To study the stream habitat types and (iii) To Jayakumar E, Anbalagan V, Murugan K 1Department of Zoology, School of Life Sciences, Bharathiar determine the diversity and distribution of insects in different microhabitats. The University, India total of 9 taxa belonging to hemiptera (true bugs), coleopteran (beetles) and odonata 2Department of Zoology, Vivekananda College, India (dragonflies) were collected in all the three sites. Hemipteran group contributed 3Department of Zoology, Loyola College, India 62% to the total community, while the values coleoptera and odonata were 33 and 2 5%. The mean abundance (number/m ) per month was ranged between 18-24, 21-27 Correspondence: Ramar M, Department of Zoology, School and 12-17 for hemiptera, coleoptera and odonata respectively.The Shannon’s index of Life Sciences, Bharathiar University, Coimbatore - 641 046, values were 1.88, 1.88 and 1.92 for sandy, pool rocks and riffles, while the Simpson’s Tamil Nadu, India, Email
[email protected] index was 6.49, 6.77 and 6.73. There were no significant difference in the relative abundance of insects between taxa and microinvertebrate of the stream indication that Received: September 25, 2018 | Published: November 06, the evenness (95%) of taxa at the sampling sites.