Sentences with phrase «more viable population»

Efforts by conservationists have helped the species rebound to a more viable population.

Not exact matches

If the current fertility level continues, Europe's population of 727 million will plummet to 556 million by the year 2050, requiring more than three million immigrants per year for the next fifty years if Europe is to remain economically viable.

They found that there are now only two habitats large enough to host more than 30 breeding females, an indicator of viable tiger populations over the long term.

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.

Earning more money is a perfectly viable option for the majority of the U.S. population.

And even in your more optimistic scenario (which I largely do share) only smaller population appears viable if its to be at a reasonable standard of living.

These considerations make it very likely that at least some populations and species would likely go extinct, and even more will likely drop below viable numbers of individuals within the next few decades simply because they could not disperse across fragmented landscapes fast enough to keep pace with movement of their required climate zones.