The branch dealing with the principles governing interaction of organisms and environment constitute ecology.
Term ecology was given by:E.HEACKEL
Father of ecology :H .REITER……
Father of Indian ecology:prof.RAM DEO MISHRA.
According to heackel….”Ecology is the study of total relationship of organism with the living and non-living environment”.
ECOLOGY IN INDIA.
Ecological studies in india were first started by DUDEGEON(1921) at Allahabad, Later on these studies were further elaborated by SAXTON and R.MISHRA.
Most active centre of ecological studies in india is B.H.U.Varanasi.