The truth about polar bears (Page 3 of 3)
Depending on whom you ask, the North’s sentinel species is either on the edge of extinction or an environmental success story. An in-depth look at the complicated, contradictory and controversial science behind the sound bites.
By Zac Unger
As if global warming weren’t enough of a problem,
polar bears face a host of other assaults, not the least of
which is hunting. By definition, there is no “sustainable”
harvest quota for a population already in decline. That
seems obvious, right? And yet it also happens to be the
wrong answer. When it comes to the science and politics
behind hunting, we have to follow polar bears down the
rabbit hole once again.
In Canada, hunting rules are determined by individual provinces and territories, so a particularly peripatetic bear
in Hudson Bay could wind up being “managed” by
Manitoba, Nunavut, Ontario, Quebec and possibly even
Newfoundland. Factor in the disparate laws in the other
four polar bear nations — the United States, Russia,
Greenland and Norway — and you’ve got a recipe for
worldwide confusion.
Approximately two-thirds of the world’s polar bears live
in Canada, and about 600 are legally hunted here every year.
Of that, 86 percent of the hunting occurs in Nunavut. For
years, First Nations and Inuit residents of polar bear country
have reported increased interaction with bears. More bears
are coming into settlements, scavenging garbage,
hassling
dogs and terrifying residents. But some scientists counter
that if bears were doing well, they wouldn’t come around
town and, therefore, a greater number of bear encounters
is actually evidence of fewer bears.
Inuit and Cree have harvested Hudson Bay’s polar bears
for 6,000 years, before climate change was on anybody’s
radar. Harvest levels in modern times have ebbed and
flowed according to management and political priorities.
Between 2004 and today, according to Nunavut’s wildlife
director Drikus Gissing, allowable harvest levels
in western Hudson Bay dropped from 56 to 38 and then to 16 — a number that was shared
between Manitoba and Nunavut and
also had to include unplanned
“defence kills.” For locals, hunting is
important not just for meat, hides
and cultural continuity but also as
a significant source of income, since
some tags are sold to sport hunters for
tens of thousands of dollars.
Terry Audla, the president of Inuit
Tapiriit Kanatami, Canada’s national
Inuit organization, says that when it
comes to really understanding how
healthy the polar bear population is,
it makes no sense to pit the feelings
and hunches of far-flung conservationists
against the direct observations
of local people who deal with the
bears all the time. As far as overhunting goes, says Audla,
“if you’re reliant
on something as a source of food, you’re
going to make darn sure that you’re keeping that source
healthy.” When you live in Resolute Bay, Nunavut, it’s hard
to give a lot of weight to a conservation organization
in
southern California or a worldwide endangered species
treaty that is signed in Qatar. “There’s this whole fad down
south about the 100-mile local diet,” says Audla, laughing.
“Well, we’ve been doing that forever.”
But even local management of hunting is not without
pitfalls. While the territorial government in Iqaluit enforces
strict rationing laws, hunters in Quebec (where no annual
quota is applied) recently killed 90 bears in a single season.
As a result, empty-handed hunters in Nunavut felt that their traditional rights were being curtailed.
And when you lose the active engagement
of the local population, you’re
likely to have more polar bears killed
rather than fewer. “The Inuit have
been respectful
of the quota system,”
says Gissing. With an annual harvest
of around 450 bears in Nunavut,
there are only a handful of poaching
incidents every year, a far lower percentage
than is seen with other biggame
species worldwide. But with
quotas going down at the same time
that locals are seeing more bears than
ever, that level of respect is at risk.
Mitch Taylor, who spent 21 years
as a polar bear biologist for the
Government of Nunavut and now
teaches at Lakehead University in Thunder Bay, Ont.,
believes “local hunters are often better informed than managers
and sometimes better informed than researchers on
polar-bear trends in their area, and when managers request
reductions in quota because of concerns that are ill-founded,
those hunters are within their rights to address the misconceptions
and clarify what populations really are doing.”
And, to add even more complexity, for populations that
are stable or rising, an overabundance of bears might lead
to competition for food, decreasing the health of the entire
population. In situations like this, limited hunting could
improve overall health.
Even Geoff York of the World Wildlife Fund — not
exactly an organization known for its wanton blood lust — floats the possibility of killing
polar bears as a management tool.
“This would be a difficult decision for
such an iconic species, but it may
become a reality as ice loss outstrips
predictions in many regions of the
Arctic,” he says. “You may have bears
at risk of starving during increased
open-water periods. The reality is
polar bears showing up in places like
Churchill, where you might have
increased predation of cubs and more
bears starving to death, with people
watching and cameras clicking.” And
pretty much everyone agrees that rich
tourists enjoying their morning lattes
on deluxe Arctic extravaganzas don’t want to watch polar
bears dying.
Sometimes it feels as though the closer you look
at polar bears, the harder they are to really see. Each new bit
of evidence seems designed to give another spin on the wheel
of public opinion. One recent study says that polar bears
have been seen swimming as far as 687 kilometres through
open water, which certainly
sounds like an ominous sign.
Then another study suggests that polar bears could be up to
500,000 years older than previously thought, which means
they’ve successfully survived multiple warming periods in
the past. So that’s a good thing, right? But then you read the
study about mysterious hair loss or the one about how polar
bear milk has become contaminated with PCBs and mercury,
and you get disappointed all over again.
So bear populations are either increasing or declining.
Hunting is either an ecological outrage or a perfectly sustainable
aboriginal right. On balance, the majority of polar
bear scientists agree that even if the current state of things
looks shakily stable, the future for bears is poor. Nonetheless,
as long as climate change is political, polar bears will be too.
And the tone of the discussion can get downright ugly.
Consider Mitch Taylor’s story. He spent more than
two decades as a polar bear researcher and manager for
the Nunavut government and has published around 50 peer-reviewed papers. That should garner
widespread respect. But Taylor has
been highly vocal about his belief that
polar bears are mostly doing fine, that
cub mortality varies from year to
year and that the much ballyhooed
predictions of extinction by 2050 are
“a joke.” He also alleges that a lot of
the “exaggerated decline” is just a way
to keep certain scientists well funded
and to transfer control of the polar
bear issue from territorial to federal
hands. In response, Taylor’s critics disinvited
him from meetings of polar
bear specialists that he’d been attending
since 1978. They also like to point
out that he’s a signatory of the Manhattan Declaration,
which questions the very existence of climate change. But
amidst all the heated charges and countercharges, it’s hard
to argue the fact that few people know polar bears the way
Taylor does. And while it might be inconvenient for current
political posturing, there’s no denying that certain subpopulations
of polar bears are managing to survive, even thrive.
Unlike some endangered species that can be saved by
roping off a grove of trees, polar bears live locally and suffer
globally. Although some scientists have suggested creating
protected refuges in the High Arctic, what’s really important
is how much rain forest the Brazilians will burn in the next
50 years and how many Texans will buy SUVs instead of
tuning up their 10-speeds. And few of the environmentalists
who visit Churchill talk about the thousands of kilometres
they flew to get there or whether a tourist town in the
middle of nowhere is part of the reason why the sea ice is
melting in the first place.
The current scientific consensus places the worldwide
polar bear population between 20,000 and 25,000 animals.
Prior to the 1973 worldwide restriction on commerical
polar bear hunting, that number was dramatically lower, so low that a meeting of polar bear specialists in 1965 concluded
that extinction was a real possibility. Some reports
even estimated the number of bears as low as 5,000 worldwide.
Yet by 1990, Ian Stirling — at the time, the senior
research scientist for the Canadian Wildlife Service and
a professor of zoology at the University of Alberta; basically,
one of the most respected polar bear scientists on the planet
— felt comfortable answering the question as to whether
polar bears are an endangered species by stating flatly:
“They are not.” He went on to say that “the world population
of polar bears is certainly greater than 20,000 and
could be as high as 40,000 … I am inclined toward the
upper end of that range.” Although old studies are sketchy,
clearly more polar bears are alive today than there were 50
years ago, an essentially heartening fact that has not managed
to pierce the public consciousness.
The percentage of people on Earth — heck, even the
percentage of people in Canada — who have ever seen
a polar bear amounts to a rounding error down around zero.
In that context, it’s hard to understand what extinction
really means. The new inability to see an animal that you
never had the opportunity to see before? Of course, the polar bear has intrinsic worth beyond its value to humans,
but is it really more valuable than the thousand other threatened
species whose names you’ve never heard and whose
faces you’ve never seen on a magazine cover? The truth is,
the polar bear exists in a space that is as much theoretical as
it is tangible. Given current climatological trends, it seems
likely that the future of the polar bear is bleak … although
its current status is almost certainly stronger than the international
conversation would have one believe.
But polar bears don’t think in terms of trends — or politics
or marketing or even in time periods longer than the interval
until their next seal kill. And while the debate rages and the
tourists’ cameras fire away, the polar bears themselves will
continue to do what they’ve always done: surviving as best
they can in whatever conditions the Arctic throws at them.