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Showing posts from November 19, 2020

Snarl for the camera! An international team of scientists and software developers use facial recognition technology to identify individual grizzlies in the wild.

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 By Larry Powell An adult female grizzly  (Ursus arctos). "BearID," as the program is called, captures a bear’s face in a  photo image, rotates, extracts and embeds it in order to classify the individual.   Facial recognition techniques have long been used to identify primates, including humans. But, up 'til now, there's really been no effective way of identifying wild species like the grizzly (brown) bear who, unlike the zebra or giraffe, lacks unique and consistent body markings.       In co-operation with two US software developers, four scientists from the University of Victoria bought their idea to reality. They tested their system on grizzlies at two locations - Knight Inlet, BC, and Katmai National Park, Alaska. After taking thousands of pictures, they were able to positively identify 132 individuals with almost eighty-four percent accuracy.  An adult female in another colour phase. All images by Melanie Clapham, U of Victoria, Canada.  The technology enables

Concentration Matters. Farmland Inequality on the Canadian Prairies

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The Canadian Centre for Policy Alternatives    by Darrin Qualman, Annette Aurélie Desmarais, André Magnan and Mengistu Wendimu A scene typical to the Canadian prairies - a big farm at harvest time. A public domain photo by cj berry. The ownership and control of Canada’s food-producing land is becoming more and more concentrated, with profound impacts for young farmers, food system security, climate change and democracy.  On the Canadian prairies, small and medium-sized family farms are often portrayed as the primary food production units. Yet, the reality of farming in Western Canada is quite different. In fact, a small and declining number of farms are operating the lion’s share of Prairie farmland and capturing the lion’s share of farm revenue and net income.  The authors analyse the extent of farmland concentration in Canada’s three Prairie provinces (Alberta, Saskatchewan, and Manitoba), where over 70 per cent of the country’s agricultural land is situated. They find that 38 per ce