NORTH WATERBORO (AP) – Maine’s distinctive tradition of allowing recreational access to privately owned woodlands and waterfronts may be in jeopardy, in part because of abuses that test the limits of landowner hospitality.

Dale Tarbox had been thinking twice about whether to continue to let the public use a dirt road and trail across his land .

“It doesn’t bother me, as long as they respect it,” he said.

But that’s not always the case. Standing on the road, Tarbox pointed out a pile of discarded roofing shingles, a half-dozen empty beer cans and the carcass of a dead skunk. Posted on a tree above the shingles is a yellow “No Dumping” sign, with a clear warning that abuse could result in loss of access.

“We put those up (in May) after they brought the hot tub in,” he said.

Maine’s cultural tradition of permissive use is at the core of the state’s character and quality of place, said Richard Barringer, chairman of the Governor’s Council on Maine’s Quality of Place. “To our knowledge, it’s unique, not only in this part of the world, but in the world. There is nothing like it.”

But the tradition is coming under pressure as lands are subdivided, populations spread out and abuses prompt landowners to post their properties.

An estimated 18,000 family forest owners posted restrictions on the use of their land in 2006, three times as many as in 2003, according to a report prepared earlier this year for the Quality of Place Council. An estimated 36 percent of small woodlot owners had posted their land as of 2005, up from 15 percent in 1991, it said.

Everyone from hunters to birdwatchers and snowmobilers to kayakers can be affected by reductions in access, which also can harm rural economies that rely on opportunities for outdoor recreation.

Unlike other rural states with vast swaths of federal lands, Maine is 94 percent privately owned. Under its unwritten social contract, recreational access is allowed on any open lands that are not specifically posted as off-limits. Landowners, meanwhile, have strong legal protection from any liability should a visitor get injured on their unposted property.