With spring in full swing, black bears have emerged from their dens and MassWildlife biologists finished a busy winter season of locating, tagging and collaring, and counting female black bears and their young at their den sites. Currently, there are 15 female bears wearing radio or GPS collars, most in the Connecticut River Valley, with two in Worcester County. Why are we doing this? Biologists are tracking cub production and adult sow (female) survival and learning how bears are using a landscape that is a patchwork of residential/commercial development as well as large blocks of green spaces throughout the year.
This year, unusually deep snow made snowshoes standard foot gear, but staff still sank in well over a foot looking for den sites using radio and GPS telemetry, hauling equipment and the occasional immobilized adult bear in sleds back to its den. (Some bears flee their dens after biologists dart them with immobilants.)
Pictured left are biologists hauling a sled up a steep slope loaded with a 275-pound bear.
Now that spring is here, DFW biologists are prepping barrel traps to capture bears that couldn’t be captured during the winter. They are also looking for new bears to collar in central Massachusetts. Choosing a site and setting up a barrel trap has its own challenges.
The traps are large, heavy and awkward as illustrated by this image of Laura and a couple of barrel traps. The trap has to be trucked up to the location and wrestled into place, then the baiting and waiting begins. It can take weeks before most bears are comfortable enough to enter the baited barrel and there are no guarantees that a bear will be caught.
It’s easy to locate a barrel trap site for a bear that is already collared. For capturing new bears to collar, the challenge is to find out where bears (and young) are appearing on a regular basis. Bear sighting reports from citizens are very helpful. Anyone in central Massachusetts seeing a bear with cubs or yearlings (we only collar females) on a somewhat regular basis is encouraged to contact our Central District office at (508) 835-3607.
MassWildlife information about bears.
The Turtles are Coming posted on Aug 29
With a migration pattern that stretches thousands of miles, it is no surprise that Massachusetts is home to four types of turtles during the summer, all of them protected by local and international law. And while you probably know that sea turtles often frequent the Massachusetts beaches, can you identify them?
2014 DAR Agricultural Calendar: August posted on Aug 25
Augusts’ Massachusetts Agriculture Calendar Photo Contest winner was Cara Peterson, who photographed a high tunnel greenhouse at Flats Mentor Farm in Lancaster.
Not From Around Here: Green Crabs posted on Aug 22
As part of its work to assess salt marsh health, staff from the Massachusetts Office of Coastal Zone Management (CZM) have frequently observed abundant green crabs, often burrowing in the banks of marsh creeks. This summer, CZM is examining the potential impacts of green crabs in salt marsh habitats, including the impact of burrowing activity.