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Tue February 5, 2013
Study: Big Game Is Getting Smaller
Originally published on Mon February 4, 2013 6:17 pm
If Teddy Roosevelt were to go big game hunting today, he might bring home slightly less-impressive trophies. That's because, according to a new analysis, the horns and antlers of North American wildlife have shrunk over the last century.
Biologists used 108 years of meticulous trophy measurements kept by the Boone and Crockett Club. It’s a non-profit hunting group founded by Teddy Roosevelt. The analysis showed that the antlers of elk, caribou, moose and deer, and the horns of muskox, bison, pronghorn, mountain goat and other animals … all got consistently smaller -- especially in the last 50 years.
The reduction wasn't much: less than 2 percent. “But," says Idaho State University biologist Terry Bowyer, "there's absolutely no question that it's real.”
Bowyer was part of the team that did the study. He says the reason appears to be hunting – sportsmen simply going after the largest males.
“Such that animals didn't grow large enough to have very large horns and antlers.”
Bowyer says there was some evidence -- albeit limited -- that hunting has changed the gene pool of certain species.
Scientists ruled out changes in climate and habitat as other possible factors in the reduced trophy size. The peer-reviewed study was published as a stand alone paper by the The Wildlife Society.
On the Web:
Boone and Crockett Club - official site