by P. Homewood, Nov 24, 2022 in NotalotofPeopleKnowThat
According to the BBC, scientists have revealed a 43% decline in a large Adélie penguin population off the east Antarctic coast over the past decade.
It’s believed several years of extensive ice near the penguin colony was the trigger – despite an overall reduction of ice around Antarctica.
They report that scientists are unsure if the population will be able to recover.
WOW!! No more Adelies. That is scary.
But being the BBC, they conveniently did not tell you the whole story, which the Guardian did:
by Molecular Biology and Evolution (Oxford University Press), February 5, 201 in ScienceDaily
Ever since Darwin first set foot on the Galapagos, evolutionary biologists have long known that the geographic isolation of archipelogos has helped spur the formation of new species.
Now, an international research team led by Theresa Cole at the University of Otago, New Zealand, has found the same holds true for penguins. They have found the first compelling evidence that modern penguin diversity is driven by islands, despite spending the majority of their lives at sea.
“We propose that this diversification pulse was tied to the emergence of islands, which created new opportunities for isolation and speciation,” said Cole.
Over the last 5 million years, during the Miocene period, (particularly within the last 2 million years), island emergence in the Southern Hemisphere has driven several branches on the penguin evolutionary tree, and also drove the more recent influence of human-caused extinctions of two recently extinct penguin species from New Zealand’s Chatham Islands.
by Dr. Penny Peiser, December 17, 2018 in ClimateChangeDispatch
You may recall the BBC’s news story a couple of months ago, claiming that African penguin populations were declining because of climate change.
The report from South Africa, which then followed, made no mention of climate change at all but instead laid the blame fairly and squarely on overfishing.
This is not an isolated instance of false claims being made about climate change by the BBC. They now seem to be making a habit of it. — Paul Homewood, Not A Lot Of People Know That, 15 December 2018
by Benny Peiser, August 1, 2018 in GWPF
Numbers of king penguins have increased throughout the Southern Ocean over the past 50 years.