Bobcats, fishers and river otters, once on the ropes in the state, are now firmly established and growing
lancasternewspapers.com
Maybe it's time to take a deep breath and take a sigh of gratitude for several remarkable comeback stories for mammals here in Pennsylvania.
I speak specifically of the successful reintroduction of fishers and otters through most of the state, and the guided resurgence of bobcats.
We have the often-maligned folks at the Pennsylvania Game Commission to thank.
Fishers
This furry predator, a member of the weasel family, had pretty much been eliminated from Pennsylvania by the early 1900s.
One report has the last native fisher killed near Holtwood in 1921. Other accounts list one killed two years later in Mifflin County.
The Fisher
Fisher restoration efforts underway in West Virginia and New York were beginning to send animals creeping into Pennsylvania when the Game Commission launched its own concerted reintroduction effort.
From 1994 to 1998, 190 fishers captured in New Hampshire and New York were released in northern parts of Pennsylvania.
Have they taken hold? Swimmingly.
Tom Hardisty, the Game Commission's furbearer biologist, estimates the state population has swelled to close to 5,000 and has grown rapidly in the last few years.
Biologists thought the predator needed solid forest and would be restricted to big woods parts of the state.
But they have been surprised as the fisher has set up shop in all but extreme southeastern counties.
"It doesn't take much," says Hardisty. "All they need is a little woodlot and a little prey population. They're a lot less particular than we thought."
A lot of their diet consists of animals the size of squirrels and smaller, such as chipmunks and rodents.
Hardisty says it's only a matter of time before fishers establish themselves in Lancaster County.
The population has done so well that in 2010 a limited trapping season was allowed in southwestern and southcentral counties. Since then, roadkilled fishers and ones showing up in traps convinced managers to expand trapping opportunities.
Trapped fishers have risen from 152 that first season to 228 in 2012-2013.
The Game Commission never intended to have so robust a fisher population that they could allow a sustainable harvest.
"Mainly, we just wanted to establish them," says a pleased Hardisty.
From 1994 to 1998, 190 fishers captured in New Hampshire and New York were released in northern parts of Pennsylvania.
Have they taken hold? Swimmingly.
Tom Hardisty, the Game Commission's furbearer biologist, estimates the state population has swelled to close to 5,000 and has grown rapidly in the last few years.
Biologists thought the predator needed solid forest and would be restricted to big woods parts of the state.
But they have been surprised as the fisher has set up shop in all but extreme southeastern counties.
"It doesn't take much," says Hardisty. "All they need is a little woodlot and a little prey population. They're a lot less particular than we thought."
A lot of their diet consists of animals the size of squirrels and smaller, such as chipmunks and rodents.
Hardisty says it's only a matter of time before fishers establish themselves in Lancaster County.
The population has done so well that in 2010 a limited trapping season was allowed in southwestern and southcentral counties. Since then, roadkilled fishers and ones showing up in traps convinced managers to expand trapping opportunities.
Trapped fishers have risen from 152 that first season to 228 in 2012-2013.
The Game Commission never intended to have so robust a fisher population that they could allow a sustainable harvest.
"Mainly, we just wanted to establish them," says a pleased Hardisty.
Bobcats
Bobcats are a Pennsylvania predator that never really disappeared from the state. But by the 1950s, with no limits on hunting and trapping them, they were found only in deep woods areas.
In 1970, the Game Commission classified bobcats as a game species and thus open to protection. At first, hunting and trapping were prohibited to allow populations to build and expand naturally in the state.
They did. The management plan from the start was to bring back bobcats to healthy enough numbers to have a sustainable hunting and trapping season.
In 2000, the first controlled season was held. Now, 28,000 square miles are open to trapping and hunting.
Harvested bobcats has skyrocketed from 58 in 2000 to 1,056 in 2012-2013. And still the bobcat population is expanding, most recently into northwestern parts of the state, says Matt Lovallo, the Game Commission's game mammal section supervisor.
With young males dispersing up to 150 miles after leaving family units, Lovallo thinks even Lancaster County will eventually see an established bobcat population as they move into agricultural areas of southeastern Pennsylvania.
A roadkilled bobcat was found in southern Lancaster County in 2001.
"I think we're all excited by it," says Lovallo. "I think more and more people are aware that we have a growing bobcat population and it's more common to see them now."
Harvested bobcats has skyrocketed from 58 in 2000 to 1,056 in 2012-2013. And still the bobcat population is expanding, most recently into northwestern parts of the state, says Matt Lovallo, the Game Commission's game mammal section supervisor.
With young males dispersing up to 150 miles after leaving family units, Lovallo thinks even Lancaster County will eventually see an established bobcat population as they move into agricultural areas of southeastern Pennsylvania.
A roadkilled bobcat was found in southern Lancaster County in 2001.
"I think we're all excited by it," says Lovallo. "I think more and more people are aware that we have a growing bobcat population and it's more common to see them now."
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