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Birds

Birds play a crucial role in many ecosystems and their conservation depends on a clear understanding of how environmental factors affect their survival and reproduction. CASC scientists are working to understand the connection between environmental factors and climate variables to help birds adapt to a changing climate. Explore our science on birds below.

Filter Total Items: 132

Identifying Conservation Objectives for the Gulf Coast Habitats of the Black Skimmer and Gull-billed Tern

Many shorebirds and nearshore waterbirds are of conservation concern across the Gulf of America due to stressors such as human disturbance, predation, and habitat loss and degradation. Conservation and protection of these birds is important for the functioning of healthy ecosystems and for maintaining biodiversity in North America. Consequently, resource managers along the gulf need...
Identifying Conservation Objectives for the Gulf Coast Habitats of the Black Skimmer and Gull-billed Tern

Identifying Conservation Objectives for the Gulf Coast Habitats of the Black Skimmer and Gull-billed Tern

Many shorebirds and nearshore waterbirds are of conservation concern across the Gulf of America due to stressors such as human disturbance, predation, and habitat loss and degradation. Conservation and protection of these birds is important for the functioning of healthy ecosystems and for maintaining biodiversity in North America. Consequently, resource managers along the gulf need decision
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Identifying Critical Thresholds and Tipping Points for Priority Coastal Species in a Changing Future

A large portion of the U.S. population lives in coastal areas along the Atlantic and Gulf coasts and the Caribbean; however, our coasts are also home to many fish, wildlife, and plant species that are important for recreation, tourism, local economies, biodiversity, and healthy coastal ecosystems. Coastal habitats also provide protective ecosystem services to human communities, which are
Identifying Critical Thresholds and Tipping Points for Priority Coastal Species in a Changing Future

Identifying Critical Thresholds and Tipping Points for Priority Coastal Species in a Changing Future

A large portion of the U.S. population lives in coastal areas along the Atlantic and Gulf coasts and the Caribbean; however, our coasts are also home to many fish, wildlife, and plant species that are important for recreation, tourism, local economies, biodiversity, and healthy coastal ecosystems. Coastal habitats also provide protective ecosystem services to human communities, which are
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Integrating Climate Change Research and Planning to Inform Wildlife Conservation in the Boreal Forests of the Northeastern U.S.

Northeastern boreal forests are an important habitat type for many wildlife species, including migratory birds and moose. These animals play vital roles in the boreal forest ecosystem, are a source of pleasure for bird and wildlife watchers, and contribute to tourism revenue for many communities. However, moose and migratory birds are thought to be particularly vulnerable to the impacts...
Integrating Climate Change Research and Planning to Inform Wildlife Conservation in the Boreal Forests of the Northeastern U.S.

Integrating Climate Change Research and Planning to Inform Wildlife Conservation in the Boreal Forests of the Northeastern U.S.

Northeastern boreal forests are an important habitat type for many wildlife species, including migratory birds and moose. These animals play vital roles in the boreal forest ecosystem, are a source of pleasure for bird and wildlife watchers, and contribute to tourism revenue for many communities. However, moose and migratory birds are thought to be particularly vulnerable to the impacts of climate
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Understanding the Impacts of Ecological Drought on Estuaries in the Pacific Northwest

In the Pacific Northwest, coastal ecosystems are highly productive areas that support millions of migratory waterbirds, shellfish, salmon and related fish. These species depend on food and habitats provided by estuaries (coastal tidal areas where streams and rivers flow into the ocean) for successful migration and breeding. Climate change effects such as drought, sea-level rise, and...
Understanding the Impacts of Ecological Drought on Estuaries in the Pacific Northwest

Understanding the Impacts of Ecological Drought on Estuaries in the Pacific Northwest

In the Pacific Northwest, coastal ecosystems are highly productive areas that support millions of migratory waterbirds, shellfish, salmon and related fish. These species depend on food and habitats provided by estuaries (coastal tidal areas where streams and rivers flow into the ocean) for successful migration and breeding. Climate change effects such as drought, sea-level rise, and changing
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Webinar: Using State-and-Transition Simulation Models to Guide Sustainable Management of Ecosystems: Three Case Studies from across the US

View this webinar to learn more about species distribution modeling, management of Southeast ecosystems, and Greater sage-grouse habitats.
Webinar: Using State-and-Transition Simulation Models to Guide Sustainable Management of Ecosystems: Three Case Studies from across the US

Webinar: Using State-and-Transition Simulation Models to Guide Sustainable Management of Ecosystems: Three Case Studies from across the US

View this webinar to learn more about species distribution modeling, management of Southeast ecosystems, and Greater sage-grouse habitats.
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Assessing the Impacts of Drought on Migratory Waterbirds in Key Conservation Regions of the Western U.S.

Migratory birds may be hit especially hard by climate change – particularly waterbirds that depend on wetlands as resting and feeding sites during their journey between breeding and non-breeding grounds. California’s Central Valley and the interior basins of southeastern Oregon and northeastern California provide some of the most critical wetlands resources to migratory waterbirds in the...
Assessing the Impacts of Drought on Migratory Waterbirds in Key Conservation Regions of the Western U.S.

Assessing the Impacts of Drought on Migratory Waterbirds in Key Conservation Regions of the Western U.S.

Migratory birds may be hit especially hard by climate change – particularly waterbirds that depend on wetlands as resting and feeding sites during their journey between breeding and non-breeding grounds. California’s Central Valley and the interior basins of southeastern Oregon and northeastern California provide some of the most critical wetlands resources to migratory waterbirds in the western U
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Developing a Coordinated, Multi-Region Effort to Understand the Effects of Climate Change on Migratory Birds

Birds are appreciated and enjoyed by thousands of people and also play important roles in the ecosystem as predators, prey, and pollinators. Alaska provides important breeding ground for hundreds of migratory bird species that travel thousands of miles in their annual migrations between breeding and wintering spots. Understanding how climate and land use changes affect migratory bird...
Developing a Coordinated, Multi-Region Effort to Understand the Effects of Climate Change on Migratory Birds

Developing a Coordinated, Multi-Region Effort to Understand the Effects of Climate Change on Migratory Birds

Birds are appreciated and enjoyed by thousands of people and also play important roles in the ecosystem as predators, prey, and pollinators. Alaska provides important breeding ground for hundreds of migratory bird species that travel thousands of miles in their annual migrations between breeding and wintering spots. Understanding how climate and land use changes affect migratory bird populations
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Forecasting Future Changes in Sagebrush Distribution and Abundance

Covering 120 million acres across 14 western states and 3 Canadian provinces, sagebrush provides critical habitat for species such as pronghorn, mule deer, and sage-grouse – a species of conservation concern. The future of these and other species is closely tied to the future of sagebrush. Yet this important ecosystem has already been affected by fire, invasive species, land use...
Forecasting Future Changes in Sagebrush Distribution and Abundance

Forecasting Future Changes in Sagebrush Distribution and Abundance

Covering 120 million acres across 14 western states and 3 Canadian provinces, sagebrush provides critical habitat for species such as pronghorn, mule deer, and sage-grouse – a species of conservation concern. The future of these and other species is closely tied to the future of sagebrush. Yet this important ecosystem has already been affected by fire, invasive species, land use conversion, and
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Informing Adaptation Strategies for Maintaining Landscape Connectivity for Northern Rockies Wildlife

The U.S. Northern Rocky Mountains support a large number of native wildlife species, and survival of these populations depends on connected landscapes to support current migration and dispersal, as well as future shifts in species’ ranges. However, habitat fragmentation and loss threaten these connections. Land and wildlife managers across the U.S. are faced with decisions focused on...
Informing Adaptation Strategies for Maintaining Landscape Connectivity for Northern Rockies Wildlife

Informing Adaptation Strategies for Maintaining Landscape Connectivity for Northern Rockies Wildlife

The U.S. Northern Rocky Mountains support a large number of native wildlife species, and survival of these populations depends on connected landscapes to support current migration and dispersal, as well as future shifts in species’ ranges. However, habitat fragmentation and loss threaten these connections. Land and wildlife managers across the U.S. are faced with decisions focused on reducing
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Informing the Identification of Economically Effective Targets for Grassland Conservation in the Dakotas

The conversion of grassland to cropland in the Dakotas could imperil wildlife such as nesting waterfowl and contribute to the degradation of water quality in the Mississippi River watershed. However, high crop prices in recent years have contributed to a high rate of grassland to cropland conversion on private lands. In addition to these economic factors, changes in climate could...
Informing the Identification of Economically Effective Targets for Grassland Conservation in the Dakotas

Informing the Identification of Economically Effective Targets for Grassland Conservation in the Dakotas

The conversion of grassland to cropland in the Dakotas could imperil wildlife such as nesting waterfowl and contribute to the degradation of water quality in the Mississippi River watershed. However, high crop prices in recent years have contributed to a high rate of grassland to cropland conversion on private lands. In addition to these economic factors, changes in climate could exacerbate the
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Relations Among Cheatgrass, Fire, Climate, and Sensitive-Status Birds across the Great Basin

The distribution and abundance of cheatgrass, an invasive annual grass native to Eurasia, has increased substantially across the Intermountain West, including the Great Basin. Cheatgrass is highly flammable, and as it has expanded, the extent and frequency of fire in the Great Basin has increased by as much as 200%. These changes in fire regimes are associated with loss of the native...
Relations Among Cheatgrass, Fire, Climate, and Sensitive-Status Birds across the Great Basin

Relations Among Cheatgrass, Fire, Climate, and Sensitive-Status Birds across the Great Basin

The distribution and abundance of cheatgrass, an invasive annual grass native to Eurasia, has increased substantially across the Intermountain West, including the Great Basin. Cheatgrass is highly flammable, and as it has expanded, the extent and frequency of fire in the Great Basin has increased by as much as 200%. These changes in fire regimes are associated with loss of the native sagebrush
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The Impact of Drought on Waterbirds and Their Wetland Habitats in California’s Central Valley

California’s Central Valley is a nexus for water resources in the state, draining the Sacramento and San Joaquin River watersheds. Urban centers, agricultural operations, and the environment all compete for limited water, and demand is expected to only increase as the population grows and agriculture intensifies. At the same time, the water supply is projected to decrease as temperatures...
The Impact of Drought on Waterbirds and Their Wetland Habitats in California’s Central Valley

The Impact of Drought on Waterbirds and Their Wetland Habitats in California’s Central Valley

California’s Central Valley is a nexus for water resources in the state, draining the Sacramento and San Joaquin River watersheds. Urban centers, agricultural operations, and the environment all compete for limited water, and demand is expected to only increase as the population grows and agriculture intensifies. At the same time, the water supply is projected to decrease as temperatures rise
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