<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">sustainableman.org/</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">How Wolves Change Rivers</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://vimeo.com/86466357</style></url></web-urls></urls><abstract><style face="normal" font="default" size="100%">When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable &quot;trophic cascade&quot; occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix.</style></abstract></record></records></xml>