This is a pretty scholarly article with a lot of big words that I am not familiar with. I did a quick research on "prion" and I guess they are the agents which can cause certain diseases (including CWD) if they are in a "misfolded form" - not formed in a normal way.
I'm thinking that one of the reasons for the presence of clay being a contributing factor is that clay particles are very small compared with sand particles. Consequently, they pack together more tightly and reduce the ability of the soil to drain well enough for these nasty "prions" to leach away as they might in more sandy soil. When animals such as deer eat this soil in the normal process of browsing on forbes and grasses, they ingest the prions and become infected.
OK - I think I'm a little smarter now. Thanks for the report.
Thanks for the translation and summary. Makes it much easier to understand that way. I do have interest in this subject now but it's hard to understand some of the technical stuff that gets posted on it.
I just got back from my elk trip to Colorado and must say that I learned quite a bit about hiking in that one trip. I researched all I could on the internet and thought I was prepared going out. For the most part I was but I want to pass on a few major things I learned that helped me drastically!
1. Pack light. I know this may sound like common sense but believe me. After reading everyone's advice on what you need to pack, chances are your pack will end up weighing more...