After the property was acquired by the NJCF and the State, a plan was developed to try to restore much of the bog areas to wetlands more representative of the Pines.
Atlantic White Cedar - Chamaecyparis thyoides - were planted and protected with a deer fence.
Ducks Unlimited played a major role on the modification of existing water management systems; overflow concrete spillways were installed that could be driven over.
An application was made, and approved, for Fed funding to try to convert the sterile sand bogs to a condition conducive to native growth. The divots were dug down to the water table, and the excavated soil dumped alongside. Amazingly, seeds that had been buried for several decades sprouted, and the landscape began to look more like natural wetland.
The beavers have had a field day; unfortunately they tend to block the water routes and mess up the planned water flow.
Several of us are monitoring, virtually year around, 5,000 square foot sites (some marked with little orange flags) all over the preserve, recording each different plant species, when it emerges, flowers, fruits, making specimens for the herbariums at the Academy of Natural Sciences in Philly and Rutgers, photographing the site to show overall changes. We're in the 2d year of doing so. Species diversity is amazing when you really get serious about looking and doing so on a regular, short interval basis. To someone learning botany as we go, it's been a fantastic opportunity. Not to mention meeting and talking with grad students doing studies on snakes, mammals on the preserve. Incidentally, one said she thinks Parker is the East Coast heaven for moles - more per given area than any other place known.
All the above is what I've learned and is subject to correction by NJCF people (invitation to do so!)
There are also several biological study projects by Drexel U. students down on the military's Warren Grove Gunnery Range.