At first, conservationists thought the cause of an alarming decline in wildlife might be drought, pollution or the destruction of habitat through development.
(conservationists; thought; the cause of an alarming decline in wildlife might be drought, pollution or the destruction of habitat through development; T:At first) Context(conservationists thought,List([10, 34))):(the cause of an alarming decline in wildlife; might be; drought, pollution or the destruction of habitat through development)
conservationists thought,List([10, 34))
conservationists the cause of an alarming decline in wildlife
thought might be
the cause of an alarming decline in wildlife might be drought, pollution or the destruction of habitat through development T:At first
drought, pollution or the destruction of habitat through development