Same idea, Survey a number of different species and a number of branches at browse level. Say 10 species and 100 branches of each in 5 different areas around your property at certain times of year. Log the # of branches browsed. Is the trend going up or down? Are non preferred species such as beech going being browsed more? Are you loosing certain species from being over browsed?
I found a bunch of beech being browsed one year. Time to shoot some does, do some logging and improve winter feed. I suspected it, but this confirmed it.
I do it out in the orchards. Survey say 100 terminal ends on given varieties for whatever...lets say aphids. 30 of them have aphids, I'm not worried, 50+, time to knock them down and make sure I spray dormant oil the following spring. That's good IPM, that's good deer management. It's not perfect but it does provide some science behind all the effort of everything we do.