Species defining environmental traits are called:
“Indicator species” for species defining environmental traits are called. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Management outcomes depend on scale and context: suppressing abundance at one site does not guarantee regional eradication when dispersal reconnects treated and untreated populations. The remaining alternatives—“Keystone species”, “Flagship species”, “Umbrella species”—refer to different states, processes, or scales and therefore do not express the same causal relationship. Spe
Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 21