Animal Attack Camera
Remote cameras let biologists monitor wildlife at any time of day or night—such as this Black Bear, doing some monitoring of its own. Photo credit: ABMI.
August 19, 2016 / Comments Off on Nerds in the Forest: Using Computer Models to Address Remote Camera Misfires / Category: Biodiversity, Data, Monitoring, Science, Science in Progress
We’re excited to introduce a new publication series: ABMI Science in Progress. Under this banner, we’ll release updates on work that’s currently taking place in the ABMI’s Science Centre—work that’s raw and will continue to evolve, but which we think our readers will find interesting in the meantime. This is the first installment, with the complete report linked at the bottom. We hope you enjoy this peek behind the scenes…at Science in Progress.
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There was a time when studying animals in the wild meant actually going into the wild. Not anymore: Just as computers and cell phones have transformed communication, new technologies are changing the way biologists, including those at the ABMI, monitor the natural world. Remote cameras are a great example. These units are small, relatively cheap, and can capture images for months even under extreme environmental conditions. But this convenience is not without its challenges. Most remote cameras detect animals by movement and infrared heat, but the system isn’t perfect. Sometimes a combination of, say, sunlight and a leaf moving in the afternoon breeze will fool the camera, leading to a ‘false fire’, or an image that doesn’t actually contain an animal. Sifting through the thousands of images captured during a camera’s deployment is labour-intensive, and the ABMI deploys hundreds of remote cameras each year for its monitoring work—enough to produce hundreds of thousands of images. As you can imagine, accurately separating out false fires is a major challenge for the ABMI. Fortunately, researchers in the ABMI’s Science Centre are working on a solution.
The approach uses sophisticated computer models called neural networks to analyze images and identify false fires. For this to work, the model must first be trained—the researchers have to show it examples of false fires along with counter-examples that actually contain animals, and let the model ‘learn’ the difference. So far, this approach has been successful in identifying nearly 45% of false fires. That may not sound like a great result, but given the number of images that must be reviewed, eliminating even half of the false fires can mean a big reduction in time and effort. Plus, the researchers used a conservative approach to training the model that minimized the number of images wrongly tagged as false fires. Over time, as modelling technology improves, the success rate should too. For now, though, this work gives a glimpse into the future of biodiversity monitoring, and highlights the benefits and challenges of using cutting-edge technologies.If there is any doubt about the ferocity of a grizzly bear, and there is judging by the countless videos of dimwitted tourists in Yellowstone, then one look at a captured Montana grizzly getting released back into the wild should eliminate them.
Earlier this week, a video posted on the popular Instagram page Tourons of Yellowstone, showed Montana wildlife authorities relocating a 22-year-old grizzly that had been getting into chicken coops in the northern Whitefish Range.
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When the grizzly was released from the giant metal trap, there was no delay on the grizzly’s part. The bear jumped out of the gate like an Olympic sprinter and lunged toward the first thing it saw — a video camera.
“Check out how he explodes from the trap as soon as the door is high enough. Then he almost takes my camera with him, Teasdale said of his video.
Despite uploading it to that channel, Teasdale was quick to note that Tim Manley, the bear biologist who trapped and released the bear, was not a touron.
Cat Attack Gif
He had his own idea which involved a bit of revenge on the damn humans with the audacity to trap him, Teasdale said.
“Be alert and aware of your surroundings, carry bear spray, every adult in the group should have their own bear spray — and know how to use it, ” he said.
For the newcomers, the last part is particularly important. Bear spray is to be used when a bear is approaching a person. It is not to be used preemptively — like insect repellant.
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He had his own idea which involved a bit of revenge on the damn humans with the audacity to trap him, Teasdale said.
“Be alert and aware of your surroundings, carry bear spray, every adult in the group should have their own bear spray — and know how to use it, ” he said.
For the newcomers, the last part is particularly important. Bear spray is to be used when a bear is approaching a person. It is not to be used preemptively — like insect repellant.
Caught On Camera: Man Enters Bear Enclosure At Zoo, Tries To Drown Animal
Good Samaritans Save Young Mule Deer Caught In Electric Fence Mark Heinz November 30, 2023 Wyoming Birds To Get New Names In Latest ‘Cancel Culture’ Move Leo Wolfson November 29, 2023
Rail Conductor Says There Are Too Many Drunk Grizzlies On Train Tracks Mark Heinz November 23, 2023 Just How Far Will Grizzlies Roam? As Far As People Will Tolerate Mark Heinz November 19, 2023
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