Snow and Ice

Project Overview In Alaska, winters are becoming shorter and more unpredictable, leading to changes in lake and river ice, impacting access to hunting grounds, fuel wood transportation and recreation for local communities. Researchers supported by this Alaska CASC project will revitalize and modernize a freshwater ice observation network with a youth-centric partnership that teams...

Project Overview Declining winter ice cover in the Great Lakes can affect how winds and waves influence coldwater fish reproduction on reefs, as ice cover may shield fish from these forces. Researchers supported by this Midwest CASC project will measure water movement and ice cover in Lake Erie to model future scenarios, helping fishery managers in the region make habitat restoration and...

The endangered Cascade red fox, native to Washington’s southern Cascades, faces threats from climate change, habitat loss, and coyotes, which are both competitors and predators. Researchers supported by this Northwest CASC project will track Cascade red fox population sizes, movement, habitat use, and survival using GPS collars. They will use the collected data in collaboration with...

Project Overview: Extreme weather conditions may disrupt key life cycle events for pygmy rabbits, a species that relies on snow and underground burrows for protection from predators and extreme cold. Researchers supported by this Northwest CASC project will use models to understand how different snow patterns and subsurface temperatures will impact pygmy rabbit habitats. Project outcomes...

Project Overview Climate change is altering headwater streams and downstream water resources in the Rio Grande basin, where water is already limited. Researchers supported by this South Central CASC project will assess the effectiveness of installing structures called beaver dam analogs (BDAs) and plug ponds in headwater streams in northern New Mexico to manage water supply, water...

Mountain ecosystems are prioritized by the North Central CASC due to the provided water resources, recreation opportunities, and endemic biodiversity. Mountain ecosystems are vulnerable to climate change due to elevation-dependent warming, loss of snowpack, reduction in physical area at higher elevations, and general sensitivity of alpine species to climate. Current climate adaptation...

Project Overview Streams in Southeast Alaska are changing rapidly due to climate change. Warmer temperatures are bringing more rain, less snow, and causing glaciers to retreat, all of which affects stream flow and food sources for young salmon. Researchers supported by this Alaska CASC project will study whether juvenile salmon can adapt by moving between different types of streams...

Cold-water fish species such as trout and salmon are highly valued components of many stream ecosystems in Michigan and the Great Lakes region and are sensitive to rising stream temperatures. For example, the timing of spawning and development rates of these species are affected by stream temperature from late fall through spring. Historically, stream temperature modeling has focused on...

The prairie grasslands of the Midwest and Great Plains provide important habitat for a wide variety of plants and animals, clean drinking water, and space for outdoor recreation and have experienced an over 99% loss of prairie grasslands due to a variety of factors including climate change. Land managers that are working to restore prairie grasslands would like to make them resilient to...

Project Overview Climate change has reduced the amount of water stored in snowpacks and altered avalanche risks in mountainous areas of western North America. Researchers supported by this North Central-CASC project will develop tools for predicting and managing future water resources and future avalanche patterns, particularly in areas of major transportation corridors and important...

Wildfire, drought, and insects are reshaping forests in the Western United States in a manner that is being exacerbated by warming temperatures. Disturbance events such as these can significantly alter the amount of land that is covered by forest in an area or region. Consequently, changes in forest cover from disturbance can impact water runoff conditions leading to dangerous flooding...

Steep, mountainous watersheds, dramatic climate gradients, and tight links between the land and sea are common features of both the Pacific Islands and Southeast Alaska. In these "ridge-to-reef" and “icefield-to-ocean" ecosystems, environmental changes that occur at higher elevations have downstream impacts on the waters below. Today, these two ecosystems are undergoing changes in...