Animals on the Move

Feral swine are moving into southern New York State, from scattered toe-holds in the northern part of the state. (Hopewell Evening Tribune)

Armadillos are heading north, perhaps because milder winters let them survive in unexpected places.(The Daily Climate)

Bears are returning to previously-burned regions of Arizona. Arizona Game and Fish warns returning home-owners in bear-prone areas to throw away spoiled food at the landfill. This is probably a good idea for residents returning to flooded areas in other states as well.

While there have been plenty of black bear sightings in urban and suburban areas all over the country, bears are causing more than the usual ruckus in densely populated New Jersey. (Newark Star-Ledger) See this article (Nyack Patch) and these articles also.

And in Greenwich, Connecticut, people are still seeing mountain lions. (Hartford Courant) (See last week’s post.)

Photo: John and Karen Hollingsworth, courtesy of US Fish and Wildlife Service

How Did the Animal Cross the Road? The Shocking Answer

One problem with fencing off highways so that large animals don’t wander on is that exits, entering roadways, and driveways can’t be fenced off. Animals on highways cause accidents, injury, and sometimes death for both the animal and passengers in the car that hits them. Often, fencing is crossed off the list of possibilities for directing wildlife crossings because there is simply too much other pavement entering the highway that can’t be fenced.

The California Department of Transportation is installing mats that deliver an electric shock to animals entering a highway in southern California. The stretch of Highway 101 has a problem with large animals causing accidents. The mats will be most helpful for keeping bears off the highway. The mats won’t shock cars or people wearing shoes.

Read the whole story in the San Luis Obispo Tribune.

This isn’t the first time shock mats have been used to keep wildlife off a highway. Four years ago New Mexico installed the mats as part of a whole suite of devices installed to reduce wildlife-caused accidents east of Albuquerque.
New Mexico Game & Fish press release
The most recent news on the project appears to be from The Christian Science Monitor, three years ago.
The Tijeras Canyon Safe Passage Coalition Web site looks like it hasn’t been updated since then.

Photo: Just a generic highway. No relation to the two mentioned.

Urban Bear Studies

Let’s make it a two-fer on black bears.

This spring, the West Virginia Division of Natural Resources began a two-year study of urban bears in three cities. The West Virginia Gazette-Mail has the details. The West Virginia effort began last year and is part of a region-wide effort. Urban bears are also being studied in Pennsylvania and New Jersey.

More details about the Pennsylvania study are available here:
ABC27
Wilkes-Barre Times-Leader
Some results of last year’s study in the Pittsburgh Tribune-Review (second half of article)
The Game Commission brochure about the study (downloads a 2-page PDF).
Pittsburgh Post-Gazette

I couldn’t find anything specifically about the New Jersey portion of this study. As previously reported here, New York State will be doing work on black bears in developing areas.

There have been many urban/nuisance black bear stories in the news this week. Mostly, it’s been “black bear spotted…” on golf course, in neighborhood, etc. This attack in New Hampshire was the most serious. (From the North Andover Eagle-Tribune). Read the NH Fish and Game press release.

Black Bear Safety

This paper in the Journal of Wildlife Management is timely. Black bears are awake, looking for food, and, not finding much in nature, are looking to garbage cans and bird feeders (or, as at my house yesterday, a compost bin), when they can get at them.

Canadian scientists, with help from a scientist at the Massachusetts Division of Fisheries and Wildlife and a Brigham Young University researcher, investigated over a century of fatal black bear attacks on humans, and got a big surprise. The conventional wisdom about bear attacks — that they are mostly mothers defending their young — did not hold up to analysis.

The study found that male bears were involved in 92 percent of fatal black bear attacks. The people’s food or garbage likely played a role in the attack 38 percent of the time. Ninety-one percent of the time, the person who was killed was alone or with one other person.

The number of fatalities was a surprise as well, at least to me. The scientists studied 63 deaths. The rate of fatal attacks seems to be increasing, with 86 percent of the attacks occurring between 1960 and 2009. And while I had imagined the mid-Atlantic US to the southern Appalachians as offering a dangerous mix of big black bears and lots of people, it turns out that Canada is home to most black bear fatalities, with 44 of the 63 fatal attacks. (With another five in Alaska, leaving the contiguous U.S. states with just 14.)

Read more about the study in the Toronto Globe and Mail, complete with a nice map.

Read the abstract, or the whole article with subscription or for a fee, in the Journal of Wildlife Management.

Photo credit: Waverley Traylor, courtesy US Fish and Wildlife Service

Black Bear Safety

This paper in the Journal of Wildlife Management is timely. Black bears are awake, looking for food, and, not finding much in nature, are looking to garbage cans and bird feeders (or, as at my house yesterday, a compost bin), when they can get at them.

Canadian scientists, with help from a scientist at the Massachusetts Division of Fisheries and Wildlife and a Brigham Young University researcher, investigated over a century of fatal black bear attacks on humans, and got a big surprise. The conventional wisdom about bear attacks — that they are mostly mothers defending their young — did not hold up to analysis.

The study found that male bears were involved in 92 percent of fatal black bear attacks. The people’s food or garbage likely played a role in the attack 38 percent of the time. Ninety-one percent of the time, the person who was killed was alone or with one other person.

The number of fatalities was a surprise as well, at least to me. The scientists studied 63 deaths. The rate of fatal attacks seems to be increasing, with 86 percent of the attacks occurring between 1960 and 2009. And while I had imagined the mid-Atlantic US to the southern Appalachians as offering a dangerous mix of big black bears and lots of people, it turns out that Canada is home to most black bear fatalities, with 44 of the 63 fatal attacks. (With another five in Alaska, leaving the contiguous U.S. states with just 14.)

Read more about the study in the Toronto Globe and Mail, complete with a nice map.

Read the abstract, or the whole article with subscription or for a fee, in the Journal of Wildlife Management.

Photo credit: Waverley Traylor, courtesy US Fish and Wildlife Service

Upcoming Research Round-up

The New York Cooperative Fish and Wildlife Research Unit is planning two black bear studies.One will study New York’s black bear population as it moves into new areas. GPS-collared bears will be tracked in core habitats and fringe areas. The researcher will compare how bears chose habitats and when they use habitats in the core areas to where to when they are active in newly populated areas. Another study will use DNA to estimate the population of black bears in those newly-occupied regions of the state. The study will use mitochondrial DNA markers from hair samples snagged on barbed-wire snares for a mark-and-recapture survey of sorts. More details are available in the NY Cooperative Unit’s newsletter.

In Oklahoma, biologists with the Oklahoma Department of Wildlife Conservation are planning a big study of bobwhite quail to gather the data needed to try to rebuild bobwhite quail populations in the Rolling Plains in the western part of the state. The study will investigate toxins, weather, parasites, and predators as potential causes of the bobwhite quail population’s decline. The biologists will coordinate their efforts with biologists in west Texas, since the Rolling Plains region crosses state lines. Read more in the Oklahoman. More info on quail in the Rolling Plains is available from the Rolling Plains Quail Research Ranch (which is in Texas).

Photos: Bobwhite: Dan Sudia, US Fish &Wildlife; Black bear, US Fish & Wildlife

Florida may delist black bears

In June, Florida Fish and Wildlife Conservation Commission will decide whether to remove the black bear from the state’s threatened species list, a move that would open the door to hunting them. There are some interesting statistics buried deep in the Orlando Sentinel article, including that 8 percent of the bears in the WekivaOcala corridor are hit and killed by cars each year, on average.

Read the whole article in the Orlando Sentinel here.

A press release from the Florida Fish and Wildlife Conservation Commission from last November about the delisting process is here.

Photo credit: Waverley Traylor, courtesy US Fish and Wildlife Service