Sentences with phrase «polar bear specialists»

Pessimistic polar bear specialists are wrong — polar bears are much more resilient to low sea ice levels in summer than they assume: their own data from low summer ice years proves it.

Yet, as I reported yesterday, polar bear specialist Andrew Derocher told the CBC this week that polar bears are almost always «forced» ashore by poor ice conditions.

But since polar bear specialists have consistently underestimated the adaptability of this species and the resilience of the Arctic ecosystem to respond to changing conditions, it's hard to take any of their hyperbole about the future of polar bears seriously.

Yet, below is a recent message from one of the world's most vocal polar bear specialists, four years after a similar incident raised the public's ire:

In short, we don't know what will happen since it has not happened before within living memory; the opinions of polar bear specialists must be taken with a grain of salt because so many of their previous assumptions have turned out to be wrong (Crockford 2017a, b, 2018), see here, here, and here.

The study's results currently are used by the International Union for Conservation of Nature's polar bear specialist group, which completes assessments of polar bears and issues the species» conservation status.

«This paper ties it all together and shows a very clear relationship between the disappearance of sea ice and increasing predation intensity on seabirds,» says Andrew Derocher, a polar bear specialist and Arctic ecologist at the University of Alberta in Edmonton, Canada.

I also sought reactions from some polar bear specialists and biologists focused on DNA clues to when the species split from its brown bear kin.

Some polar bear specialists warn that the pace of projected human - driven warming could present greater challenges than prolonged warm spells of the past.

Few people know that Arctic ringed seals (Phoca hispida, aka Pusa hispida) give birth and breed in the offshore pack ice in the spring, as it is seldom mentioned by either seal or polar bear specialists.