Creative Control of Invasive Species
Invasive species are notorious for being the bane of a wildlife biologist’s existence. They are highly adaptable, tolerant to serious attacks, they reproduce efficiently and quickly, and they often have few, if any, natural competitors. As their populations swell they can snuff the life out of pristine ecosystems by munching down food sources or by preying on native wildlife. They spoil habitat and take away loads of management resources from critical native species. What on earth can be done to protect us from the scourge of invasive species?
Snake-sniffing Dogs in the Everglades
A collaboration titled “EcoDogs” between Auburn University’s Canine Detection Research Institute and scientists has trained dogs to utilize their highly tuned sense of smell to hunt for Burmese pythons in Everglades National Park. The dogs were originally meant to be bomb sniffing agents but were re-assigned after their temperament showed more promise for work in the outdoors. So far the results are encouraging. The dogs bypass the snake’s ability to hide from human sight and have a 75 – 92% success rate in locating the snakes. They also can search an area more efficiently, at about 2.5 times the rate of a human. The “EcoDogs” team isn’t stopping at pythons—the dogs are being trained to sniff out tree fungus, skunks, bears and other animals.
http://www.reuters.com/article/2012/04/30/us-usa-pythons-dogs-idUSBRE83T19J20120430
Secret-Agent Parachute Mice in Guam
After 60 years of outright domination of native landscapes, the millions of Brown tree snakes (Boiga irregularis) in Guam may be meeting their maker. A new plan to eradicate, or at least reduce, the massive number of these snakes in Guam involves air-dropping mice laced with acetaminophen. The chemical, used as a pain reliever in humans, is 100% lethal to the brown tree snake. It may sound like a last-ditch effort by conservationists on the island, and that’s because it is. Scientists are forced to get creative because other more conventional methods to control the snakes have had little effect on the snake populations. A successful reduction of snakes is critical if the ecosystem is to return to a state of normalcy, even after ten of 12 native forest bird species have disappeared in the last 30 years. Cheryl Calaustro, of the Department of Agriculture explains that, “the birds here evolved without predators. They were quite naive. And when the snake arrived on Guam it ate eggs, juveniles, adults. Whole generations disappeared.”
http://www.huffingtonpost.com/2012/05/09/guam-snakes-poison-mice-parachute_n_1503615.html
Five Delicious Ways to Utilize an Invasive Plant Problem
Invasive plants are just as troublesome as invasive wildlife. They can slowly take over landscapes without ordinary citizens even realizing what is happening. If only these plants could be marketed somehow or even just used as some kind of a resource… In pondering these questions, our friends at treehugger.com have compiled a list of recipes that feature free, local, and abundant invasive species as the main ingredient. What better way to balance out your diet while simultaneously helping to control an environmental catastrophe? Check out the recipes below.
http://www.treehugger.com/green-food/5-invasive-plants-you-can-eat.html



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