Global Warming causing Cannibalism

by John Goetz

OK, I know the catchy headline and picture of Hannibal Lecter got you worrying a little about that neighbor of yours who is stocking up on fava beans and chianti. But the headline is misleading, as is this one posted yesterday (September 23) at cnn.com:

Polar bears resort to cannibalism as Arctic ice shrinks

By Marsha Walton, CNN

I was looking for a good, sensational read. I really thought the article would be about the many ways in which global warming was causing cannibalism amongst polar bears in the arctic. I searched for the heart-wrenching stories about how increasing temperatures forced mom to bop pops on the head when he was not looking and toss daddy-kibble to the kids to keep them from starving to death. Instead, the story began as follows:

Summer is over in the northern hemisphere, but it’s been another chilling season for researchers who study Arctic sea ice.

“It’s definitely a bad report. We did pick up little bit from last year, but this is over 30 percent below what used to be normal,” said Walt Meier, a research scientist with the National Snow and Ice Data Center in Boulder, Colorado.

This past summer, the Arctic sea ice dwindled to its second lowest level. Arctic sea ice is usually 1 to 3 meters, or as much as 9 feet thick. It grows during autumn and winter and shrinks in the spring and summer.

Scientists have monitored sea ice conditions for about 50 years with the help of satellites. Changes in the past decade have been alarming to climate researchers and oceanographers.

“It is the second lowest on record. … If anything, it is reinforcing the long-term trend. We are still losing the ice cover at a rate of 10 percent per decade now, and that is quite an increase from five years ago,” Meier said. “We are still heading toward an ice cover that is going to melt completely in the summertime in the Arctic.”

Huh? This was not at all what I expected. Where was the blood and gore?

Then I noticed something in the upper left part of the page. Those rascals at CNN got me again!

It was a CNN Planet in Peril story!  Sensationalist journalism at its best, but without all the fact-checking of the National Enquirer.

So did the story ever mention polar bear cannibalism? You betcha, right near the end:

“The Arctic sea ice melt is a disaster for the polar bears,” according to Kassie Siegel, staff attorney for the Center for Biological Diversity. “They are dependent on the Arctic sea ice for all of their essential behaviors, and as the ice melts and global warming transforms the Arctic, polar bears are starving, drowning, even resorting to cannibalism because they don’t have access to their usual food sources.”

Scientists have noticed increasing reports of starving Arctic polar bears attacking and feeding on one another in recent years. In one documented 2004 incident in northern Alaska, a male bear broke into a female’s den and killed her.

Hey, what was news in 2004 is still headline-worthy today, right?

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Dave Dodd
September 24, 2008 8:36 pm

But now it’s 2008 and and AGW seems to be wimping out. This guy has written some FLAMING AGW support articles previously. Seems to be squirming himself out of the corner he wrote himself into. Looks like the rats are beginning to jump ship as AGW continues to be uncooperative:
http://www.boston.com/bostonglobe/editorial_opinion/oped/articles/2008/09/20/on_climate_who_will_lead_by_example/

Bill in Vigo
September 24, 2008 8:46 pm

I just wonder if any of the reporters went close enough to find if the bears were thin and Bone. I do suspect that there has been a little grand standing here as most folks don’t get to visit the arctic at any time much less on the taxpayer dime. I would still consult the people that know about the bears and remember that we have more ice this time this year than this time last year. time will tell and it may well be embarrassing for some of the Knowledgeable folks. the rest of us dummies will have to just slog along in the snow and slush to see what is happening.
Bill Derryberry

September 24, 2008 8:47 pm

In one documented 2004 incident in northern Alaska, a male bear broke into a female’s den and killed her.
And that, folks, proves global warming.

An Inquirer
September 24, 2008 8:48 pm

I shudder to think how gullible or easily misled we as a people are. Over 40 years ago, I learned that cannabilism was frequent among polar bears. Without some systematic study, I am not convinced by a statement of increased reports in recent years of polar bears attacking each other. It could very well be that there we are bound to get more reports when polar bears are getting the attention that they are getting now. There also could be an issue of population growth of polar bears. More bears within a given space — more chance for cannibalism. (Of course, some bears could try to migrate to Iceland — oops, they get shot on sight there!)

Mike Bryant
September 24, 2008 8:51 pm

“The Arctic sea ice melt is a disaster for the polar bears,” according to Kassie Siegel, staff attorney…
Those lawyers know polar bears.

crosspatch
September 24, 2008 8:56 pm

And polar bear populations are at record high levels. Maybe that is why they are having to do that. Maybe these record high levels of polar bears have eaten all the seals in the area and have to resort to cannibalism.
With a lack of ice, the seals will come to shore, where the bears are. With no ice to forage on, the bears bunch up on land too.
The last interglacial was warmer than this one has been. There was less polar ice than during this interglacial. Yet we still have seals, and we still have bears.

Martin Elphinstone
September 24, 2008 9:13 pm

More shrill hyperbole from the popular press and, alas, some poor science published in the journal Polar Biology. It looks to me as if the CNN doco may have used as its source this piece of research:
http://www.polarbearsinternational.org/rsrc/scientists/amstrupetal2006cannibalism.pdf
Trouble is, this is a mere description of cannibalism and an association with poor condition in the bears , not a study of it’s causes. The scientists concerned, to use their words,
“hypothesize that nutritional stresses related to
the longer ice-free seasons that have occurred in the
Beaufort Sea in recent years may have led to the cannibalism
incidents we observed in 2004”
The trouble is there is no data whatsoever to support or refute their hypothesis and the publication is merely a report of two things: 1. the actual cannnibalism events; and 2. the condition of the bears involved. Furthermore, the authors acknowledge that intraspecific predation, i.e cannibalism, occurs in brown, black and polar bears. Looking a bit further into the subject area reveals many earlier reports, e.g.
http://pubs.aina.ucalgary.ca/arctic/Arctic52-3-307.pdf
(and references within) back to 1977. It seems intraspecific predation is likely a mechanism which regulates population size appropriate to the location concerned. Other reports in the popular press suggesting that polar bear population size has generally been increasing in many parts of the Arctic would tally with reports of cannibalism and suggest that these populations may be self-regulating in response to recent population increases. Or at least this is an equally likely hypothesis to explain the data and that these individual cases are not necessarily anything to do with reductions in Arctic sea ice or, by entension, northern hemisphere warming.

henry
September 24, 2008 9:31 pm

“Scientists have noticed increasing reports of starving Arctic polar bears attacking and feeding on one another in recent years. In one documented 2004 incident in northern Alaska, a male bear broke into a female’s den and killed her.”
Going from NO reports to ONE report is an increase in reports, right?
It also said the bear broke in and killed the female. Doesn’t say it ATE the female…
Next, it will be stories like this:
“Reporters are seeing increased reports of starving AGW scientists attacking, and feeding on one another’s data in recent years. In one documented 2010 incident in Pennsylvania, a male scientist broke into a female’s lab and emptied her archives…”

AnyMouse
September 24, 2008 9:49 pm

“increasing reports” means there have been earlier reports. More reports can also mean more people reporting, which might only mean more pens or mail service. Or tourists.

September 24, 2008 9:52 pm

When I was growing up on the farm (in the 70’s), we had organic, free range chickens, back before it was a cool thing to do. I regularly, if infrequently, saw the chickens attack and sometimes kill the weak ones among them. I also found them cannibalizing dead chickens.
Since in the 70’s, the consensus was the coming ice age, does that mean global cooling causes chickens to go cannibal?

Johnnyb
September 24, 2008 10:20 pm

I remember watching a documentary that showed a male polar bear stalking a female and her cubs with the express purpose of eating them. It did not say anything about climate change in that documentary, but the reason that the female could not escape was because she was caught out on open ice without access to the sea.
Anyhow, why should we care so much about a race of bears that cares so little for the survival of their kind that they eat their own children and females?

Jeff B.
September 24, 2008 10:26 pm

When the empirical evidence is not cooperating, the AGW folks adjust data, and similarly, their media foils recycle headlines.

September 24, 2008 11:01 pm

Something’s been eating at me. Does CNN stand for Cannibal News Network? Also, where are the missionaries? I’m pretty sure there are supposed to be missionaries in cannibal stories.

DaveM
September 24, 2008 11:11 pm

If this cannibalism proves true, it is not AGW derived starvation that is the culprit. Rather, it is more likely due to overpopulation.

Dodgy Geezer
September 25, 2008 12:41 am

“hypothesize that nutritional stresses related to
the longer ice-free seasons that have occurred in the
Beaufort Sea in recent years may have led to the cannibalism
incidents we observed in 2004”
Umm…were 2002 and 2003 particularly poor years for ice? I thought they were rather normal?
Anyway, if a slight dip in 2003 causes canibalism, how much worse must it be in 2007, when there really WAS a dip? So, where are the reports from last year…?

Alan the Brit
September 25, 2008 1:27 am

Johnyb.
Was that the “Kingdom of the Ice Bear” doc you recall. It was a wonderful prog & the book was likewise fascinating. I equally recall the poin tin hand about the male stalking a female & her cubs. Oh & what was that other prog the other evening on Asian Tigers, (the animals not the economy) oh that’s right, there was this male tiger stalking a female & her cubs, & if caught he would eat kill the cubs & mate with the female, etc. I have a feeling it’s the same withmost animal species, dare I say up to & including our own in some circumstances.
There was a doc prog some years ago about tribal Monkeys in northern India, two tribes, one in the town one out of it. The one in the town had rich pickings. Guess what, the tribe outside the town made a raid into town, had a rumble with the insiders, killed all the males & attempted to wipe out all the male offspring & took over the town, sparing the females young & old for obvious reasons! Could it be a case of natural animal behaviour patterns being observed in survival conditions perhaps, as opposed to Global Warming? However it’s far more exciting to attribute any & all naturally occuring events in nature to some scary story or other. It hasn’t been seen before therefore it must be unprecidented!
As an engineer I sometimes have to look at old buildings because the owner has noticed a crack in a wall or ceiling. It frequently turns out to have been there for a long time & the owner has only just noticed it despite walking passed it 20 times a day for 10 years. That’s humans beings for you I guess!
BTW UK Met Office still adamant temperatures are on an upward trend according to a Brohan et al 2006 study in the Guardian yesterday that happened to show 1975-2007???? temperature range. How odd? Well done Bishop.

BarryW
September 25, 2008 2:27 am

So what if it’s ice free in the summer? From Wikipedia with my emphasis:

In Hudson Bay, James Bay, and some other areas, the ice melts completely each summer (an event often referred to as “ice-floe breakup”), forcing polar bears to go onto land and wait through the months until the next freeze-up.

gregg
September 25, 2008 2:39 am

A lot of people have been wondering what’s going on with Al Gore’s lips in this photo. I suspect it’s somehow tied into cannibalism. 😉

kim
September 25, 2008 3:21 am

Maybe the methane burp visions make them fail to recognize their brother.
==============================================

MattN
September 25, 2008 3:31 am

This is what happens when desperataion sets in…

Mike Ramsey
September 25, 2008 3:39 am

It seems that polar bears eat each other even without the excuse of global warming.
http://pubs.aina.ucalgary.ca/arctic/Arctic52-3-307.pdf
–Mike Ramsey

Peanut Gallery(the artist formerly known as Tom in Florida)
September 25, 2008 4:19 am

“according to Kassie Siegel, staff attorney for the Center for Biological Diversity”
Now that’s the Peanut Gallery!!!

Jerker Andersson
September 25, 2008 4:33 am

I saw a wasp that ate a fly this summer. What is that a sign of?

snowfalcon
September 25, 2008 4:44 am

A little rider to the plight of the polar bear – and to the comment that the last inter-glacial was warmer and the bears obviously survived along with the seals – the polar bear is actually a very recent evolutionary offshoot – from the brown bear ancestry – probably only 100,000 years ago and hence has only experienced the ice-age, to which it is an obvious adaptation – so this inter-glacial may be its first real test. It can interbreed with brown bear and produce young. So much as I admire it as an icon, just as any other species encountering natural climate change, it can come and it can go, and something similar can come back – that”s evolution.
I am a long-time supporter of wildlife charities and biodiversity work, but am growing heartily sick of the way the natural world’s response to climate change is so cynically used by campaigners to whip up funding and support of their organisations.

Editor
September 25, 2008 4:58 am

Mike Dubrasich (23:01:37) :

Something’s been eating at me. Does CNN stand for Cannibal News Network? Also, where are the missionaries? I’m pretty sure there are supposed to be missionaries in cannibal stories.

Geez, what an opening for Gorey stories, hope you moderators are ready for it.
Instead of missionaries, there are plans in the works to send investment bankers. Congress is squabbling over who’s going to pay for the fuel to get them there. Answer – taxpayers, it’s always the taxpayers.

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