Population dynamics, biomass and secondary productivity of aboveground insects in two sub-tropical forest ecosystems at Shiroy Hills, Manipur
Singh, T.B.; Yadava, P.S.
Tropical Ecology 34(1): 113-119
1993
ISSN/ISBN: 0564-3295
Accession: 002461508
Population density, biomass and secondary productivity of aboveground insects were studied in two sub-tropical forest ecosystems at Shiroy Hills of Manipur state from June 1983 to June 1984. Coleoptera and Orthoptera were recorded to be the dominant insect groups in terms of density and biomass in these two forest sites. The total density of aboveground insects ranged from 0.6 m-2 (March) to 4 insect m-2 (July) in the forest site-I and 0.6 m-2 (March) to 3.2 insect m-2 (July) in the forest site-II. The total insect biomass varied from 48 mg m-2 to 551 mg m-2 in site-I and from 43 mg m-2 to 481 mg m-2 in site-II. The total secondary productivity were recorded to be 332 mg m-2 and 393 mg m-2 in site-I and -II, respectively.