No not in big picture, not in my opine. Overhunting,poaching,cats & canines mainly.
NM was The Best muley country I saw in early 70's,quality wise & close to numbers wise. There were less elk.
Some units gave out thousands OTC mule deer tags a year for years. Elk and antelope the same. Neighbor said one year they handed out hundreds of tags to ranchers along with draw tags in my unit.
Elk & antelope have come back in numbers,from my observations. Deer keep dropping like a rock still. I heard of 2 big bucks taken in my unit this year during the whole season so far.
I see twice the antelope as 10 years ago too. 3 times the elk,easy.
I would see elk & deer in same areas,in large numbers in UT,CO,MT,NM. Northern NM still somewhat. But not in the Gila/SW anymore. SE was a good area 10 years ago. I do not see the numbers or quality there at all like it was,same with NW. Fracking has taken big toll in NW & NE. Like subdivisions,but no people & poop,just poison & roads covered in TX oilworkers.
Only place like old days I have seen is the Jicarilla Rez. Only place run right for Game in NM,IMHO.