The ultimate goal for corridor and connectivity is regulating land use in such a way that private property will be required to follow conservation regulations. Taking the Jackson, Wyoming comprehensive plan as an example, here is just one of its 415 page requirements.
SECTION 3250. ESTABLISHMENT OF NATURAL RESOURCES OVERLAY (NRO) DISTRICT
Page III 33 - Affects all aspects of Elk, Moose, Mule Deer, Trumpeter Swan, Cutthroat Trout, and Bald Eagle migration, habitat, nesting, and spawning. Private land use includes restricting development, loud machinery, using a qualified wildlife biologist or landscape architect, wildlife friendly fencing, allowed colors of roof and house, maintenance plan for development, monitoring program with a qualified landowner representative conducting a site visit once annually with the the property owner paying full costs for bringing the mitigated habitat or vegetative cover type into compliance, pets leashed or kept in by fences...and the list goes on.
Overlays are important to understand. Basically it lies on top of existing city and county zoning, so your local input to your elected representative is removed. Depending on who creates the overlay, they determine what the zoning will be where you live.
The American Planning Association (APA) defines an overlay as, "An overlay zone is a zoning district which is applied over one or more previously established zoning districts, establishing additional or stricter standards and criteria for covered properties in addition to those of the underlying zoning district.", and "...have the potential to be very effective governmental regulatory tools."
According to the Center for Land Use Education, "Any governmental unit with the power to create zoning districts can create an overlay district." In Idaho, Blaine County, home to Sun Valley and heavily invested in environmentalism, has a "Mountain Overlay District".
This is the end goal, regulating land use and applying overlay districts which erases jurisdictional boundaries and jurisdictional authority.