Sentences with phrase «establish viable populations»

The birds abandon breeding areas near tall structures, and the disturbance and fragmentation of their habitat further makes it difficult for them to establish viable populations.

Once we've arrived at our new home we need to grow crops and establish a viable population.

Not exact matches

But with just ten animals in captivity worldwide — three at Cincinnati Zoo, four at the Sumatran Rhino Sanctuary and three in the Tabin reserve — more animals will need to be caught in Sumatra to establish a viable captive population, says Roth.