Yellowstone
In 1995 eight wolves were reintroduced to Yellowstone National Park, USA. This resulted in a phenomenon known as a trophic cascade which lead to a flourishing of biodiversity. Predation by wolves lowered the population of elk and dear and the wolves’ presence meant the dear avoided exposed landscapes. Previously overgrazed foliage was allowed to grow again. Aspen, willow and cottonwood flourished. Migratory birds returned to the region. This provided food for an increasing beavers population who made damns in rivers providing habitat for marshy birds, otters, muskrats, ducks, fish, reptiles and amphibians. Wolf Carrion provided food for scavengers, birds of prey and even bears. This process has even been suggested to have changed the topography of the rivers with increased vegetation supporting banks from erosion and decreasing meandering of river courses.
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This work sonifies the population of a number of yellowstone species including wolves, elk, Grizzly bears and Bison between 1995 and 2010. By mapping the populations of these animals onto relevant elongated species sounds I have created an ambient backdrop. Onto this I have embroidered the sounds of yellowstone's biophony and geophony guided loosely by the data. Through this sonic tapestry I hope to tell the narrative that rewilding has to offer:
“The hope that our silent spring could be replaced by a raucous summer.”
- George Monbiot
Special thanks to National Parks Service, U.S.A. for the source material for this composition.
- George Monbiot
Special thanks to National Parks Service, U.S.A. for the source material for this composition.