Vision on biodiversity: Indigenous techniques of biodiversity assessment of butterflies in some forests of Bangladesh

In the present study few indigenous techniques of biodiversity assessment butterflies were practiced in some forest ecosystems Bangladesh. Butterfly-plant interaction a ecosystem is dynamic key factor that determines status forest. A research team Environmental Biology and Biodiversity Laboratory (EBBL) department Zoology, Dhaka University worked successfully on population census forests by using their newly innovated method “Biotic-epicntre technical model”. This deals with two important points for practicing it field condition. These are ethological aspects application epicentre-spot-design. total 202 butterfly species (belonging to seven different families) studied experimental stations The families Hesperiidae, Papilionidae, Nymphalidae, Pieridae, Danaidae, Lycaenidae Satyridae. „vulnerability status‟ comprises„Available (Av)‟, „Rare (Rr)‟, „Near Threatened (Nt)‟, „Threatened (Tr)‟, „Critically (Ct)‟ „Endangered (En)‟. revealed highest number host-plant (25 was used lycaenids (45 species). family Satyridae had lowest hostplant (only 2). second (24 associated Nymphalidae (34 38 Hesperiidae only nine host-plants. Papilionidae (19 species) related five host plant families. (23 Pieridae found depend ten members Danaidae (12 four More than 35 forest-areas Bangladesh included investigation. Out (202), six declared „Endangered‟. Among examined butterflies, 12, 13, 9, 64 98 hold Critically Threatened, Near Rare Available respectively. carried out three major areas methods various fields have been illustrated respective figures. J. Biodivers. Conserv. Bioresour. Manag. 2022, 8(1): 1-14