Hair Falling Out On Lynx

Did a lynx 4 years ago . Guy that had it lives in an old farm house , no temp or humidity control in room he had it in. Last year hair started to fall out on chin. This year head and body. What on earth is causing this to happen ? Mites ? Are all cats suceptable to this type of thing happening ?

 

Thanks 13 point. Only thing salvageable is the form. Everything gone accept 6 inches from toes. Will need to talk to him about what he found on the habitat base.

 

I was told that moths and bugs will destroy perfectly tanned and hide pasted mounts. is it recomended that you should spray your mounts with Permethrin every once in a while ? A sawdust looking waste on the habitat scene would be the tell tale sign. Humidity , I think is the catalyst that creates the perfect environment for bugs to take hold of a mount.