Timely reflections on the current state of our grizzly affairs


Friday, February 05, 2010

How do we turn science into policy in a timely way?

We consider ourselves to be rational beings with a fondness for "facts" derived from scientific research. And yet when it comes to public policy, it often takes decades for these "facts" to influence the way politicians make decisions in the public interest.

A recent op-ed in the New York Times indicates that we've known for 80 years that repeated concussions in professional athletes who box or play football can lead to hemorrhages and long-term brain damage. A 1928 article in The Journal of the American Medical Association warned that “There is a very definite brain injury due to single or repeated blows on the head or jaw which cause multiple concussion hemorrhages. ... The condition can no longer be ignored by the medical profession or the public.”

This warning was ignored for 80 years, and it's only this season that the N.F.L., for instance, issued new rules limiting players with head injuries from returning to the field. Why? Probably a whole lot of institutionalized denial. Like the tobacco industry, the NFL chose to run and hide from the problem rather than look out for the best interest of its players by addressing it as quickly as possible.

Even after the N.F.L. finally conceded that concussions “can lead to long-term problems,” one of the league’s longtime brain injury experts, Dr. Ira Casson, told a Congressional panel that there is not enough “valid, reliable or objective scientific evidence” showing that repeated blows to the head could cause permanent brain damage.

Sound familiar? The biggest example of the "denial strategy" is climate change. We've known since at least 1895 that carbon dioxide and other greenhouse gases trap heat and warm the earth. And yet here we are, in 2010, 115 years later, still failing to put together a global climate change strategy that will meaningfully reduce GHG emissions enough to prevent catastrophic levels of climate change. Why? Perceived corporate self-interest defaulted to denial in response to calls for change.

So we shouldn't be surprised that Alberta's supposedly "science-based" grizzly bear recovery plan doesn't utilize even the most basic scientific understanding about how to recover ailing grizzly bear populations. For at least 20 years we've known that the minimum amount of secure core habitat needed to protect and recover grizzly bears is approximately 57 to 68 per cent of the recovery area (Mace et. al 1996, Mace and Manley 1993, Mattson and Haroldson 1985). Basically, this means that 57 to 68 per cent of the landscape needs to be managed at road densities at or below 0.6 kilometres per square kilometre.

What did the Alberta recovery plan stipulate after eight years of delay? That only 20 per cent of the recovery area be managed as core habitat, a far cry from the thresholds scientists have told us are necessary. In fact, if the recovery plan were ever actually implemented, secure core grizzly bear habitat would be approximately 50 per cent less than it is today.

This problem is not unique to Alberta. According to How much is enough? The recurrent problem of setting measurable objectives in conservation, over a quarter of the recovery plans for federally threatened and endangered species in the U.S. set quantitative recovery objectives at or below the species' existing population size or number of populations (Tear and colleagues, 1993, 1995). These objectives are likely low because they were politically palatable (Scott et al. 1995).

Deciding where grizzly bears will be allowed to survive in Alberta is a socio-political issue to be sure. But hiding behind a recovery plan based on false optimism and/or outright deceit will only result in further declines in grizzly bears and public trust in government. Let's at least put the facts on the table and make conscious decisions based on the best available information. That's not only good for grizzly bears, it's good for governance.

Thursday, February 04, 2010

How much is enough to conserve grizzly bears?

A new report by released a consortium of environmental organizations suggests that fifty per cent of the landbase needs to be managed for conservation in light of the threats posed by our warming climate.

Authored by senior forest ecologist Dr. Jim Pojar, A New Climate for Conservation states that intact forests play key roles in storing carbon, mitigating climate impacts and conserving biodiversity. The report calls on the B.C. government to implement a climate conservation strategy that includes managing at least 50 per cent of the province's land base for these objectives.

“A minimum conservation target of 50 per cent is what's necessary to give our plants and animals a fighting chance to adapt while also keeping and drawing more carbon out of the atmosphere so that over time, we can slow and reduce climate change,” Pojar told The Globe and Mail recently.

Although some people may find the number — 50 per cent! — rather large, it really should not come as a surprise, and it likely applies to most of Canada, not just B.C. Numerous reports and studies have suggested that even without considering the impacts of climate change, reducing the egregious rate of biodiversity loss we're experiencing will require the protection or conservation management of much more land (and water) than we are today.

Svancara and colleagues (2005), for instance, showed that while policy-based approaches are very close to achieving the well-known (but largely politically expedient) target of protecting 10 to 12 per cent of the landbase, evidence-based approaches called for targets between 30.6 and 41.6 per cent. (See How much is enough? The recurrent problem of setting measurable objectives in conservation.)

Relatively successful efforts to recover grizzly bears in the United States suggests that 68 per cent of the landbase must be managed for the needs of grizzly bears. This largely depends on managing road densities where grizzly bears are to be allowed to persist. (See Roads Kill: Grizzly Bears and the Effects of Human Access for more information.)

Alberta, where grizzly bears have been recognized as a threatened species, has a long way to go to reach these targets. Given that 2010 is the International Year of Biodiversity, there's no better time to start than now.

Tuesday, February 02, 2010

The Grizzly Manifesto

Well, it's finally happening.

In May 2010, my first book, The Grizzly Manifesto, will be published by Rocky Mountain Books. It is not the first book about bears I started, but it is the first one to see its way into print, and given the importance of the subject matter – namely, grizzly bear conservation in western North America – I’ll be embarking on a book and media tour shortly after its release.

This book is unique, I think, because it blends all that’s special and important about grizzly bears with my personal experiences as a journalist and conservationist. I've spent much of the last ten years learning about the people and political processes that are supposed to preserve grizzly bears and the habitat on which they depend. Sadly, the system seems terribly broken and ineffective, especially in Canada. As it's name suggests, it also provides a blueprint of sorts that will prevent the grizzly’s decline and possible disappearance if we don't change our ways.

The grizzly bear, once the archetype for all that is wild, is quickly becoming a symbol of nature’s fierce but flagging resilience in the face of humanity’s growing appetite for natural resources — and of the difficulty our wealth-addicted society has in changing its ways.

North America’s grizzlies survived the arrival of spear-wielding humans 13,000 years ago, outlived the short-faced bear, the dire wolf and the sabre-tooth cat—not to mention mastodons, mammoths and giant ground sloths the size of elephants—but a growing wave of urbanization and industrialization continues to push the Great Bear further north and west, just as it has since Europeans arrived in its home 400 years ago.

Despite their relatively successful recovery in Yellowstone National Park, the bears’ decline in Canada continues largely unchecked. The front line in this centuries-old battle for survival has shifted to western Alberta and southern BC, where outdated mythologies, rapacious industry and disingenuous governments continue to push the Great Bear into the mountains and toward a future that may not have room for them at all.

I’m hoping to partner with conservation organizations, independent bookstores, and/or universities/colleges in major towns and cities in both the U.S. and Canada. Potential stops include Jackson Hole, Bozeman, Missoula, Lethbridge, Calgary, Edmonton, Jasper, Canmore, Banff, Vancouver, Victoria, and even Seattle. If (you or someone you know) might be interested in helping organize an event in your area in May/June/July, please contact me for more information.