The map above, published by scientists in 2004, shows the extent to which the ranges of 14 large mammal species have shrunk over the past 200 years and where they remain.
As western North America was settled and human activities came to dominate the region, the amount of available wildlife habitat shrank dramatically.
The Yellowstone to Yukon region (outlined in black in the map) remains a stronghold for large ungulates, such as elk and moose, and carnivores, including bear, lynx and wolverine.
As one of the last intact mountain regions in the world, whose current network of protected lands supports healthy wildlife populations, the Yellowstone to Yukon region is a refuge for these important animals.
Conserving this region is critical for the long-term survival of all wild creatures.
More about connectivity
Getting grizzlies off ‘islands’ to support genetic diversity
The genetic diversity of grizzly bear populations is key to their, and other species’, health. Y2Y’s big-picture approach to conservation helps remedy genetic isolation and the loss of habitat. Read more about how you are helping keep grizzly bears safe and moving in Montana and Idaho.
Mammals on the move show why protected and connected habitats matter
Wildlife needs room to roam – more room than one might think! Follow along with the famous travels of three wide-ranging animals in the Yellowstone-to-Yukon region.
Science points to Y2Y as a model
What role does science play at Yellowstone to Yukon Conservation Initiative?
Global guidelines for connectivity conservation released
Guidelines for protecting the interconnections of nature to enhance protected areas, conserve biodiversity, and increase resilience to climate change Today, the IUCN WCPA Connectivity Conservation Specialist Group released the first-ever…
Study and map:
Andrea S. Laliberte and William J. Ripple 2004. Range Contractions of North American Carnivores and Ungulates. BioScience 54 (2): 123-138
