0 the animals and plants living in a particular place, time, or habitat (= one type of natural environment): --
A 2015 biota study found no major invasive species in the lake.
He instantly loved Madagascar's warm, Afro-Asian culture and exotic biota.
More than half of the large mammal biota of the Americas disappeared in a cataclysmic extinction wave at the very end of the Pleistocene Era.
Fragile flora and river biota can be unwittingly destroyed in the zeal to experience the great outdoors.
One issue is the possible transfer of foreign biota to other rivers and lakes affected by the outlet.