jryoung
Well-known member
Interesting to read some science on this issue, and the comments here. Just back from three days of Board of Directors Meetings for RMEF. Among the many different Board meetings/topcis, I got to read/listen to some expert opinions on the science of elk, nutrition, habitat, etc.
Some of it surprised me. Some of it related to this feed ground topic.
Science is showing that the greatest threat to elk nutrition is the lack of adequate nutrition on our summer ranges. That goes against all I was taught, but too many studies are showing that for me to deny it, even with my original biases that the constriction to ungulate survival was all about winter range.
In the Greater Yellowstone region, where much of the studies were done, summer nutritional values are not what they once were. Lactating cows have a greater nutritional need from June-August than they do in the winter. By a significant margin. That really surprised me. Since they are not getting the proper nutrition to recover, it is affecting calf survival, breeding cycles, and the ability for animals to get through the winter, even on the best winter range.
Unfortunately, it appears the vocal fringe that gains much support among hunters claims calf survival and low cow nutrition evidence is attributable to predators. The premise they provide is that predation is stressing cows/calves. Yet, the science has a hard time supporting that. The science does support that in the absence of excellent summer nutrition, nutritionally stressed cows/calves are at greater risk of the direct and indirect impacts of predation, but the predation is not the cause, rather an amplified effect.
And the problem with that is this. As hunters, we are taking our eye off the bigger goal. Yeah, we have to let the states manage these predators, but by focusing on strictly predators, hunters are allowing their most treasure resources struggle because we are making habitat and nutrition less of a priority. The next time some hunters tells me all elk problems are related to predators and that the habitat is in great condition, it will take a lot of restraint to not tell him how misinformed he is.
Much was discussed as to feed grounds in Wyoming. As to those feed grounds in WY, a some questions are unanswered; or maybe I should say, some projected outcomes result in differing opinions. Yet, these next two points seem to be universally accepted.
- Every biologist you talk to, just like most hunters, has some gut instinct that if we are feeding wildlife non-native feed in artificial conditions, something is wrong with the bigger picture. Yet, you get differing opinions as to what the NET difference will be to elk when you compare the scenarios of feed grounds v. no feed grounds.
- Every biologist agrees elk concentrate in the presence of feed grounds.
- Every biologist agrees that elk will concentrate in different areas, absent the feed grounds.
- Every biologist agrees that concentrations of wildlife, including elk, are at higher risk of a disease outbreak.
No argument by any of the biologists on those topics. Given that, I will take those items as facts.
Where the divergence starts is when you compare the models of disease risk in presence of feed grounds and the models of disease risk in the absence of feed grounds. I'll try to explain.
The management/policy decision comes down to what happens in each scenario; feed ground or no feed grounds. Since there are 23 feed grounds in Wyoming, there exists some pretty good data of what is happening with feed grounds on the landscape. The science shows where the elk are congregated, what they are eating, what their populations are, and samples of health and condition are taken regularly.
That's the easy part. Now, the hard part, and what causes the divergence of some professional opinions - What happens in the absence of feed grounds?
Some things they all seem to agree upon.
Then, there are some things that smart minds hold differing opinions on.
- First, elk will have a short-term drop in population levels as the summer range conditions are in bad shape and some elk will not be able to find the minimal nutrition to get through winter, absent feed grounds. Most seem to have the opinion that this will be a 2-5 year dip, before populations start to adjust.
- Second; disease, both brucellosis and CWD, is on the landscape near the WY feed grounds.
- Third; there will be high concentrations of elk in other areas of WY, even if the feed grounds do not exist. Everywhere Rocky Mountain Elk exist in harsh winters, there are areas of concentration where elk migrate/congregate for winter feeding and environmental benefit (less snow, warmer temps).
- First; where, and in what densities, the congregations of elk will exist if feed grounds were to be stopped.
- Second; what impact the diseases will have on elk herds that are congregated in other locations due to the feed grounds being shut down. Will the disease impacts be less, or be the same, or be worse in congregations all agree will still happen, absent the existence of feed grounds?
All agree that we do not have the data to answer those two points above. There are professional opinions, from respected biologists on both sides of the feed ground/no feed ground camps.
The problem lies in that we do not have science to know what happens in the absence of feed grounds in WY. Some will say we do, but we really don't, as WY started this feed ground program a long time ago and that results in incomplete data as to the situation of Wyoming elk on winter ranges that were void of feed grounds.
Some will say that we can use data from states without feed grounds, say MT. Some say we cannot use that data, as the situation is different, the maturity of diseases presence is different, etc.
Some will point that there is a lower incidence of brucellosis in states like MT that does not feed in the winter. True. Yet, others will point out that the acceleration in the rate of brucellosis prevalence in MT is greater than acceleration rate of prevalence on the feed grounds in WY, projecting that Montana will eventually reach a prevalence rate in their non-feed ground herds that is close to the brucellosis prevalence rate in the WY feed grounds.
Is that because brucellosis has been on the landscape in WY for decades longer than it has been on the landscape in MT? And as such, maybe it has grown to some level in WY that is leveling off, and eventually it will grow to the same rate of infection in MT, before leveling off there, also.
Again, the case can be made that due to the different conditions in states looked to for "no feed ground" models, it is hard to know what will happen in the absence of feed grounds.
I left with some questions answered for my mind.
1. Disease is present, and new diseases are coming to the elk herds of YNP, and thus will spread to the herds that migrate into WY, MT, and ID, whether WY has feed grounds or has no feed grounds.
2. There are a lot of agendas that are quick use the available science as support for their position, no matter the completeness of the science. The "no feed ground" agenda cannot provide good models of what will happen to elk in the absence of feed grounds. The "keep the feed grounds" agenda cannot deny that feed grounds will be a place with high levels of disease transmission.
3. These are the glory days of elk. In the event of continued fire suppression, the herds of elk we enjoy today will not have the adequate summer range nutrition to prosper. Lacking improvement of the vast tracts of public summer range, the large elk herds we enjoy today could soon follow a trend that we have seen in mule deer.
4. That smart minds, much smarter than me, can look at similar data and come to different conclusions or make different projections.
5. That hunters are attributing way too much of the localized elk issues on strictly predation, and as such, we are not focusing on the bigger issues that will make a true difference even with the presence of wolves, cats, bears. Yes, there are predation affects, but most every smart mind on the topic agrees that the localized impacts of predation is best mitigated by improvements to summer range.
I am not smart enough to make a decision, one way or the other, given the available data. Even with complete data sets for all scenarios, people much smarter than I will have to make the final projections as to the outcomes.
No matter the scientific outcome, the best thing hunters can do is to try isolate what is a scientific issue from what is a social/political issue. Interjecting the personal/social/political biases before complete science is available will taint the science that is being produced. I fear that may already be the case in much of this discussion. Just too many agendas already competing for the outcome that favors their interest.
We can all take away from this situation that fact that altered landscapes create a lot of management problems for elk and other wildlife. We can also take away that focus on habitat is going to do the greatest good for elk and wildlife, no matter what the decision is for the feed grounds in Wyoming. And, we can take comfort in knowing that a focus on improved summer range will have more benefit to elk than we once thought.
RMEF has done tons and tons of work in WY; most of it habitat work focused toward helping improve the native landscapes to allow elk to be less dependent upon the feed grounds. I would hope that no matter what side of the feed ground discussion you are on, you support improvement to the native landscapes in manners that help elk and other wildlife.
We have many challenges facing elk, some localized, some regional, some national. The biggest challenge we will face for elk is breaking the gridlock on land management policy that favors fire suppression and prevents the Forest Service and BLM from implementing other activities that could provide benefits to the condition of our summer ranges.
This should be a sticky, awesome post.