LIVINGSTON (AP) -- A major subdivision proposed for 3.5 square miles south of Bozeman Pass threatens wildlife habitat and stands to increase conflicts between people and animals, a state wildlife biologist says.

Virginia developer Jerome LaLonde's plan for 2,000 acres in the Trail Creek area calls for building or reconstructing 16½ miles of roads and building 107 houses.

''Land wise, and the number of lots, it's probably the biggest (subdivision) we've had in the county," said Jackie Robbins, Park County land-use planner.

In a letter to LaLonde consultant Ellen Woodbury, biologist Tom Lemke of the Montana Department of Fish, Wildlife and Parks said ''roads extend virtually everywhere" in the project.

Lemke anticipates ''loss of wildlife habitat, a reduction or shift in wildlife use, a reduction in hunting harvest opportunities and the creation of numerous human/wildlife conflict situations."

''Just about every (forest dwelling) big game, furbearing or predator species can be found within or near the project area," he continued. They include deer, elk, moose, lions, bobcats, wolverines, beaver, coyotes, fox, pine marten, grizzly and black bears, and wolves. Grizzlies and wolves are federally protected under the Endangered Species Act.

The area to be subdivided lies between typical summer and winter ranges for migrating ungulates and the predators that follow them. Lemke said the project includes just 35 acres of open space and would allow too many horses.

''There is potential for an overgrazing nightmare in this area," he wrote.

He envisions the 107 new homes drawing bears lured by garbage, bird food and other temptations and believes pets would be vulnerable to predators.

''A lot of his concerns have been or will be addressed throughout the process," Woodbury, a former Park County planner, said Saturday. Measures to avoid attracting bears will be required, she said, and grazing of horses will be prohibited on some parcels.

Some Paradise Valley ranch families own the land. LaLonde is president of Atlantic Land Corp. of Harrisonburg, Va., developer of the 54-lot Canyon Ferry Crossing near Helena.

LaLonde said the Park County development proposal is incomplete. He declined to respond to Lemke's concerns.

Robbins said her concerns include traffic, demands on law enforcement agencies and protection against wildfires. The land borders Gallatin National Forest and is not zoned.

Lemke said ways to reduce the impact of development include reducing roads; reducing lots and clustering them; and requiring that garbage and other bear bait be locked away.

Woodbury predicted more than half of the homes would be occupied just seasonally, which would lessen the impact. She also noted there are subdivisions nearby.