Dall Sheep Population

Within Alaska, Dall Sheep are found in eight major mountain ranges: Kenai, Chugach, Talkeetna, Wrangell-Saint Elias, Alaska Range, Brooks Range, White Mountains, and Yukon-Tanana uplands.

The Wrangell-Saint Elias and Mentasta Mountains are part of the vast and rugged landscape of eastern Alaska and are home to a large population of Dall Sheep that is being threatened by many factors created by a diverse landscape and changing weather patterns. These mountains are known for their dramatic peaks, volcanic activity, and remote wilderness. Such rugged terrain and remote access create world class hunting and wildlife viewing opportunities among some of the highest peaks in North America, including Mount Wrangell (14,163 ft), one of the largest active volcanoes in the world. Other notable peaks include Mount Sanford, Mount Blackburn, and Mount Drum. These mountains are characterized by massive glaciers, deep valleys, and stunning ice-covered summits.

To the north, the Mentasta Mountains, also home to a smaller yet still significant population of Dall Sheep, act as a natural divide between the Wrangell Mountains and the Alaska Range. They are lower in elevation but still rugged, with peaks reaching over 7,000 feet. The Mentasta range is part of the Pacific Ring of Fire, meaning it has a history of seismic and volcanic activity.

Both mountain ranges are home to diverse wildlife, including grizzly bears, caribou, and Dall sheep.

A diverse landscape and worldwide climate change is creating unpredictable weather patterns and significant shift in seasons. The Wrangell and Mentasta mountains in particular experienced harsher than usual winter and increased snowfall two years in a row. Research indicates that weather is among the most significant factors affecting sheep populations. What impact would these harsh winters have on the Dall’s sheep habitat and population? A survey conducted in these areas showed a significant effect. Early data from the 2023 transects survey indicate a 40-60% decline in adult sheep in comparison to the previous survey conducted in 2021. It seems that this decline is likely connected to the harsh conditions created by record snowfall in the area.

What can we expect after such a decrease in the animal population? Conservation efforts to support Dall sheep populations in the Wrangell and Mentasta Mountains are always a priority in order to sustain the wildlife population. Since much of the area falls within Wrangell-St. Elias National Park and Preserve, habitat is largely protected from human development, officials place a primary focus on habitat protection, hunting regulations, and research initiatives. Making it a practice to follow a valuable code of conduct while enjoying outdoor adventures is one way that all of us who visit these areas can contribute to animal conservation efforts.