Don't shoot the messager
Harken back to the days when NJ deer heard at nonexistent. And deer were brought in from Virginia, Maine. both S-NJ and N-NJ were restocked. The herds took some time to get to the point of Hunting The farming Practices of the time proved good feeding and cover.
It was after WW2 that hunting began to be a Sport many took to. After The Korean War, it really took off as the population was exposed to Fire Arms and The Economy Grew to make it affordable,
For the following years of Buck Only 3" or better and 6 Days to hunt them Success was scattered. Hunters fought for the right to harvest Does so a Party Permit was put in place followed years later with a permit Doe day. To Hunters Choice.
The deer exploded as more lands Private and the public became available. They moved into Towns where there is no hunting more off limit Private Lands.
The point as NJ puts more pressure on The Resource with 100 days more methods and Brown its Down The quality and numbers have grown. The numbers of Trophy Bucks has improved. As to the average age of Bucks harvested is by NJDFAG Stats 2 -4-year-olds
NJ compared to other states has a lot of Deer for its size. If I remember PA has more roadkill than Nj harvest during its deer seasons.
As far as Science in NJ it is Bookkeeping $$$$ The deer do just fine no matter how many Days and numbers are allowed.
Enter The Bear -- Turkeys -- Geese that have exploded What Science was involved other than the Introduction natural or otherwise to the Point where Controlled Deer Hunts. to Thin deer in private areas are held. Turkeys Trapped and Destroyed Geese Trapped and Destroyed Now that is Science NJ Style.
NJ does not manage its natural game resources for out of State income. Like other States Much Larger Be it Maine, Alaska Montana.
Alaska put Millions into Managment NJ Collects Millions to exterminate the resource in many areas due to Local Pressures to do it.
NJ management is surveying Testing and Hoping. The Highest costs are Raising Trout & Pheasants with many Failures over many years. As far as Maine experimenting with Deer management. Alaska Managing a Billion Dollar Game industry. Time will tell.