RE: Some Good news In PA
My family owns a large logging company here in central PA. I grew up around it and see or hear what impacts it has at the outcome. What we've seen over the last 30 years is that after an area is select cut, most of what shows up afterwards is maple. The problem with logging, as I see it, is that the demand for oak species far out weighs that of most others. Oak brings high dollar in the market and that is the targeted species generally. We remove most oak in a select cut and leave everything else. This everthing else usually is maple and pine species, which then in turn take over an area. Without oaks in an area, deer usually visit other areas where there are oaks to get to the acorns. The past season, some of my favorite, high producing stands had very little deer activity because of the lack of acorns on the ground (we got hit pretty hard with the gypsy moth).
Of course, logging does have a positive impact. The new browse that comes up a few years later is excellent food and cover.