The Wrack

The Wrack is the Wells Reserve blog, our collective logbook on the web.

Posts tagged invasive species

  • Thinning the Herd

    Wells Reserve Contributor | December 1, 2015

    I took a hike on a brisk November morning and was surprised to see a man in camouflage preparing to shoulder his bow beside the Muskie Trail entrance. I learned he was a hunter participating in the reserve's annual deer harvest program.

    This program was initiated because of ecological problems caused by an overpopulation of deer. Because the reserve uplands are a designated state wildlife sanctuary, no hunting had been allowed for decades. The deer density in the 1990s was estimated at 100 per square mile, while a healthy "carrying capacity" is closer to 15/mi2. Locals report having seen the field along the Muskie Trail full of deer in early mornings and evenings.

    Two White-tailed Deer in snow. Photo by Frank Wolfe.

  • Happy Memorial... Year

    | May 24, 2015

    Mind the dip

    The following was published in the Biddeford-Saco Journal Tribune Sunday edition, 5/24/2015.

    The small bird my boys found in the backyard last weekend was olive green with an orange crown like a dirty hunter’s hat. It showed no signs of violence, but it was definitely dead. No rigor mortis, so it wasn’t a winter casualty emerged from the snow. …that’s as far as our “CSI: South Portland” investigation went before I got a shovel and buried the bird six inches under. My seven-year-old placed a cantaloupe-sized rock over the grave and we went on with our day.

    It was only after going back inside that evening that I began to wonder what species of bird it had been.

  • Liars and Flyers and Bears, Oh My

    | November 2, 2014

    (c) JHpolitics.com

    The following was published in the Biddeford-Saco Journal Tribune Sunday edition, 11/2/2014.

    From reports, it sounds like this year’s midterm election is a doozy, money-wise: across the country, campaigns are spending record sums marketing their candidates and causes.  So I read, anyway: I do not watch broadcast TV, I have an ad blocker on my computer, and I only listen to satellite radio and MPBN. Voluntarily [and gratefully] deaf to the din from most of the marketing wars, I rarely hear about the latest advances in breakfast cereal, let alone the biannual election season onslaught.

    About the only political advertising I do see are ads in newspapers (bless you, candidates, for feeding our starving print publishers), and outdoor campaign signs.

  • Impacts of green crab predation on soft-shell clams

    | June 4, 2014 | Filed under: Observations

    The reserve works with Dr. Brian Beal, one of the leading scientists looking at the impacts of green crabs on soft-shell clam populations.

  • In Like a Lionfish, Part 2

    | March 15, 2014 | Filed under: Opinion

    Once invasive species get into an ecosystem, it's nearly impossible to get them out.

  • In Like a Lionfish, Part 1

    | March 1, 2014 | Filed under: Opinion

    The ultimate invasive species, the one that has penetrated to every corner of the map, left no waters or winds untouched, and helped all the others spread so quickly, is Homo sapiens.

  • Casco Bay Island Invasion!

    | October 29, 2013

    For the last 6 years, myself and a group of trained citizen scientist have been monitoring marine invasive species on docks, rocky shores, and tide pools as part of the Marine Invader Monitoring and Information Collaborative, or MIMIC.

  • European Shrimp Found for First Time in Maine

    | August 26, 2011
    While monitoring for invasive species this week with the MIMIC program, I came across a species of shrimp I have not seen in my 4 years of monitoring at this site. The species is Palaemon elegans…
  • MIMIC: Marine Invader Monitoring and Information Collaborative

    | May 25, 2010

    Marine InvasivesThe Marine Invader Monitoring and Information Collaborative (MIMIC) is a network of trained volunteers, scientists, and state and federal workers who monitor marine invasive species along the Gulf of Maine. The collaborative provides an opportunity for the general public to actively participate in an invasive species early detection network, identify new invaders before they spread out of control, and help improve our understanding of the behavior of established invaders. More than 100 volunteers are monitoring 38 sites in Rhode Island, Massachusetts, New Hampshire, and Maine.

  • Marine invasives collected in Wells Harbor

    | July 27, 2007

    Marine invasives rapid assessment team at work in Wells HarborLast Friday a science team marched to Wells Harbor and began a rapid assessment of marine invertebrates on and around the dock. The taxonomic specialists from MIT, Sea Grant, and the Massachusetts Coastal Zone Management Program were joined by Reserve research director Michele Dionne and associate Jeremy Miller, who facilitated the Wells Harbor survey.