Wolf population over 500 years?

Question

Does anyone know the population decrease percent of wolves over the past five hundred years? I need to know for my report. Thank you, and please, if possible, post your resources.

Answer 1

http://www.fws.gov/Midwest/wolf/populati...

http://www.hsus.org/wildlife/a_closer_lo...

http://www.fws.gov/mountain-prairie/spec...