They introduced European economies and culture into fragile Arctic terrestrial and marine ecosystems and over time suffered the consequences of ecological damage, human population decreases and extinctions.
(They; suffered; the consequences of ecological damage; T:over time) (human population; decreases; ) Context(human population decreases,List([163, 189))):(They; introduced; European economies and culture; into fragile Arctic terrestrial and marine ecosystems)
human population decreases,List([163, 189))
They human population They
suffered decreases introduced
the consequences of ecological damage T:over time
European economies and culture into fragile Arctic terrestrial and marine ecosystems