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Jessica Schnell
2,587 followers -
Birds, bats, conservation, animal movement, and all that's in between.
Birds, bats, conservation, animal movement, and all that's in between.

2,587 followers
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"In the 1800's, approximately 50,000 grizzly bears roamed the lower 48 states. Today, fewer than 2,000 remain."

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Methods in the News:
A new method from Oedekoven et al. provides a starting point for boosting the ability to understand how changes in #Wildlife distribution and #ClimateChange are related.

Read the press release here: bit.ly/2svIV7Z
And read the full Methods in #Ecology and #Evolution article here: bit.ly/2tpQg5f (No Subscription Required for a limited time)
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Tagging animals to teach us more

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"Researchers wonder similar things, particularly about visits to wooded areas. Cats are not necessarily as benign as their purring might make us believe. Cats transmit diseases to humans. Cats eat birds and other wildlife. A study by Smithsonian and US Fish & Wildlife Service researchers gave estimates that cats kill at a minimum of one million birds and seven million small mammals every year.
Roland Kays, Director of the Biodiversity Lab at the NC Museum of Natural Science explained that tracking at least a thousand cats will reveal secrets “not only about the typical cat movements, but also about the extraordinary ones. Given that cats are so common in the country, if even 5% of them are moving out into the nature preserves it could be quite harmful to native wildlife.”

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"Cats affect other species in ways we are only beginning to understand. A controversial 2012 Smithsonian analysis of previous studies contended that nationwide, outdoor cats kill between 1.4 billion to 4 billion birds per year, and more than 20.7 billion small mammals yearly — making outdoor cats the single largest human-related threat known facing these mostly native wild animals. (Belling a cat can help, but not always; one belled cat, who was also declawed, learned to bat flying birds out of the air and bite them to death.)
That’s one reason that the Humane Society of the US and the American Veterinary Association recommend we keep our cats inside. Another is that indoor cats live significantly longer — to 17 years or more — than those allowed to roam. With an average lifespan of only two to five years, outdoor cats are apt to meet violent deaths: One study found 63 percent of recorded cat fatalities were caused by cars. Other outdoor cats die in the jaws and talons of predators or in combat with rival cats. They are also more likely to contract diseases such as feline AIDS or feline sarcoma virus."
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