Tag Archives: Dr. Boone Mora

WDFW’s Treponema Theory Dismantled by Technical Advisory Group, ‘Hoof Rot’ Continues to Decimate Elk Herds

“Knowledge will forever govern ignorance, and a people who mean to be their own governors must arm themselves with the power knowledge gives. A popular government, without popular information or the means of acquiring it, is but a prologue to a farce or a tragedy or perhaps both.”

–James Madison

Feda Windship

For months, WDFW officials have been claiming the mysterious elk hoof disease ravaging the herds of southwest Washington is likely caused by treponema bacteria. At a public meeting in Longview on March 27, WDFW Director Phil Anderson told the nearly 300 citizens in attendance that regarding treponema, “We’ve got some pretty strong evidence and we’ll figure out whether we’re 99% sure or 90% sure here pretty soon.”

Now that percentage of certainty hovers somewhere between slim and none.

On June 3rd, numerous members of WDFW’s highly vaunted technical advisory group expressed serious doubts that treponema could be the root cause of elk hoof disease. Though the bacteria do appear to be involved, the unmistakable consensus was that treponemes are secondary or tertiary to other, more systemic factors.

“[Treponemes] are possibly playing a role, but they’re not the entirety,” said Jennifer Wilson, a research microbiologist with the USDA.

“I buy the fact that it’s acting like a novel introduced disease. I’m just saying this treponema data does not support that,” said Tom Besser, a specialist in Veterinary Microbiology and Pathology at WSU.

“I also have a little bit of a concern because the treponema hypothesis still requires an initiating event… Until you figure out what that triggering event was you’re not going to be able to really understand the disease,” said Dr. Anne Fairbrother, an Ecotoxicologist with Exponent Engineering and Scientific Consulting.

“You’re mentioning lots of different bacteria. That’s one piece of the puzzle… but there are other things that seem to be missing in the puzzle. Big pieces. The big pieces are the environmental factors and why this particular region and not other regions,” said Dale Moore, an expert in preventive veterinary medicine at WSU.

Now, more than 20 years since the onset of elk hoof disease, and nearly 5 years since they began “actively” investigating this condition, WDFW is left without a single viable working hypothesis. Despite all of this, WDFW officials still insist they are giving it their best effort.

Asked to weigh in on the matter, wildlife activist Bruce Barnes said, “They’re playing the public for a bunch of fools.”

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Of Roosevelt Elk, Bacteria, Hooves and Herbicides

Feda Windship

Over the last several years through numerous blog posts and comments Cascadia Wildlands has been forwarding two important notions. The first is that state wildlife commissions (and therefore agencies) in the West are too beholding to resource-oriented industries such as ranching, timber, mining and energy interests at the expense of hunters, anglers and our ever-dwindling wildlife legacy.

And, at the same time, western wildlife commissions are too accepting of the ideas forwarded by some extreme hunting groups that increasingly reflect the views of these same resource-dependent industries such as increasing clearcuts, aggressive predator control, protection of public lands grazing and more road creation for access rather than hitting the conservation sweet spots of habitat restoration, wilderness preservation, road retirement and water quality improvement. In essence, both the commissions and these more trophy hunting-oriented groups have been quietly coopted by the very elements that do damage to the natural resources needed by all wildlife and fish.

The most recent and troubling example involves the issue of hoof rot in Washington State’s Roosevelt elk herds. No one knows for sure at this point what is causing the hoof rot in southwestern Washington, but there are a lot of candidates both of a direct and indirect nature. One hypothesis that was put forth recently is that there is some link between combinations of factors that could include herbicide use by the forest products industry and a bacterial infection known as leptospirosis. Leptospirosis often causes severe muscle pain in mammals which might explain the limping observed in these elk as well as the lack of hoof wear on the sore legs. Leptospirosis has been present in Washington for decades.

As a wildlife biologist who frequently looks at complex interactions, I can appreciate a scenario that includes multiple causes such as massive habitat changes and herbicide use that put elk in a vulnerable condition so they present the variety of symptoms we are observing with this hoof rot phenomenon. But the idea of this being driven by leptospirosis or via an herbicide link—either through decreased habitat quality or consumption effects—has been met with apparent resistance in spite of efforts by a retired public health researcher and an expert on leptospirosis detection, Dr. Boone Mora, and hunter Jon Gosch who has written two well-researched blog posts on the topic. In addition, farrier Krystal Davies has also made a rather cogent argument for this being laminitis associated with or driven by herbicides.

Visit www.cascwild.org/of-roosevelt-elk-bacteria-hooves-and-herbicides to read the entire article.