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Aquatic

Filter Total Items: 16

Social and Institutional Aspects of Natural Resource Decision Making

Our work uses a range of social science methods including interviews, surveys, listening sessions, workshops, and document analysis, to understand how Department of the Interior land managers and others make natural resource decisions.
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Social and Institutional Aspects of Natural Resource Decision Making

Our work uses a range of social science methods including interviews, surveys, listening sessions, workshops, and document analysis, to understand how Department of the Interior land managers and others make natural resource decisions.
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Invader Removal and Recovery of a Threatened Amphibian

The Herpetological Research Team is using acoustic surveys and eDNA methods to evaluate the progress of invasive bullfrog removal and Oregon spotted frog recovery.
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Invader Removal and Recovery of a Threatened Amphibian

The Herpetological Research Team is using acoustic surveys and eDNA methods to evaluate the progress of invasive bullfrog removal and Oregon spotted frog recovery.
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Acoustic Surveys to Inform Invasive American Bullfrog Removal Efforts

The Herpetological Research Team is recording audio in areas where American bullfrogs have invaded to learn more about where and when they are breeding and inform managers tasked with controlling their spread.
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Acoustic Surveys to Inform Invasive American Bullfrog Removal Efforts

The Herpetological Research Team is recording audio in areas where American bullfrogs have invaded to learn more about where and when they are breeding and inform managers tasked with controlling their spread.
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American Bullfrog Invasion and Impacts on Native Species in the Pacific Northwest

The Herpetological Research Team at the USGS Forest and Rangeland Ecosystem Science Center uses innovative tools to investigate the invasion and spread of American bullfrogs in Washington and Oregon and understand how bullfrogs are interacting with native amphibians.
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American Bullfrog Invasion and Impacts on Native Species in the Pacific Northwest

The Herpetological Research Team at the USGS Forest and Rangeland Ecosystem Science Center uses innovative tools to investigate the invasion and spread of American bullfrogs in Washington and Oregon and understand how bullfrogs are interacting with native amphibians.
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Updated classifications of flow permanence on streams in the Colville National Forest

The Issue: Streamflow permanence refers to the probability that a stream will lose surface flow (become a dry channel), as well as the timing, duration, and frequency of drying. Patterns of streamflow permanence drive important decisions regarding forest management and other land uses. The Colville National Forest Land and Resource Management Plan (2019), for example, specifies riparian management...
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Updated classifications of flow permanence on streams in the Colville National Forest

The Issue: Streamflow permanence refers to the probability that a stream will lose surface flow (become a dry channel), as well as the timing, duration, and frequency of drying. Patterns of streamflow permanence drive important decisions regarding forest management and other land uses. The Colville National Forest Land and Resource Management Plan (2019), for example, specifies riparian management...
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READI-Net: Providing Tools for the Early Detection and Management of Aquatic Invasive Species

The USGS has developed the Rapid environmental (e)DNA Assessment and Deployment Initiative & Network (READI-Net) to accelerate the implementation of environmental DNA (eDNA) analysis as a best practice for the early detection of aquatic biological threats. READI-Net provides tools and a strategy to collect and deliver early detection data for natural resource managers and public health protection...
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READI-Net: Providing Tools for the Early Detection and Management of Aquatic Invasive Species

The USGS has developed the Rapid environmental (e)DNA Assessment and Deployment Initiative & Network (READI-Net) to accelerate the implementation of environmental DNA (eDNA) analysis as a best practice for the early detection of aquatic biological threats. READI-Net provides tools and a strategy to collect and deliver early detection data for natural resource managers and public health protection...
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Wildlife-Habitat Relationships

Whether generalists or specialists, wildlife species use habitats based on their structural, compositional, and climatic characteristics. This use may vary with life stage, age, or physiological condition of the animal, as well as weather, season, food availability, need for cover or shelter, and other factors. Our research focuses on understanding the intrinsic and extrinsic factors that drive...
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Wildlife-Habitat Relationships

Whether generalists or specialists, wildlife species use habitats based on their structural, compositional, and climatic characteristics. This use may vary with life stage, age, or physiological condition of the animal, as well as weather, season, food availability, need for cover or shelter, and other factors. Our research focuses on understanding the intrinsic and extrinsic factors that drive...
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Water Temperature in Rivers and Streams

Increases in summer stream temperature as a result of human impacts and climate change may exceed the thermal tolerances of aquatic biota that are adapted to colder environments and climates. The combined effects of humans and climate change are of global concern across the range of coldwater aquatic organisms.
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Water Temperature in Rivers and Streams

Increases in summer stream temperature as a result of human impacts and climate change may exceed the thermal tolerances of aquatic biota that are adapted to colder environments and climates. The combined effects of humans and climate change are of global concern across the range of coldwater aquatic organisms.
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Spatial Ecology of Freshwater Ecosystems

Water resources, riparian areas, and aquatic organisms are of critical importance in natural resource management. Yet, they are difficult to map, monitor, and understand in a spatially explicit and extensive manner as can be done more easily in terrestrial environments.
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Spatial Ecology of Freshwater Ecosystems

Water resources, riparian areas, and aquatic organisms are of critical importance in natural resource management. Yet, they are difficult to map, monitor, and understand in a spatially explicit and extensive manner as can be done more easily in terrestrial environments.
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Restoration and Management of Aquatic Ecosystems

Restoration of aquatic ecosystems involves a broad spectrum of active and passive efforts. Passive efforts rely on natural recovery of ecosystems, such as land use practices that protect riparian zones and sources of wood and sediment that drive the geomorphic and associated biological functions in streams. Active efforts involve more direct intervention, usually applied to specific locations, to...
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Restoration and Management of Aquatic Ecosystems

Restoration of aquatic ecosystems involves a broad spectrum of active and passive efforts. Passive efforts rely on natural recovery of ecosystems, such as land use practices that protect riparian zones and sources of wood and sediment that drive the geomorphic and associated biological functions in streams. Active efforts involve more direct intervention, usually applied to specific locations, to...
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Oregon Spotted Frog

The Oregon spotted frog ( Rana pretiosa ) is a medium-sized anuran native to the northwestern United States. Body coloration ranges from brown or tan to brick red, usually overlaid with dark, ragged spots. Oregon spotted frogs can be distinguished from other native species by their relatively short hind legs, orange or red wash of color on underside of abdomen and legs, and upturned chartreuse...
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Oregon Spotted Frog

The Oregon spotted frog ( Rana pretiosa ) is a medium-sized anuran native to the northwestern United States. Body coloration ranges from brown or tan to brick red, usually overlaid with dark, ragged spots. Oregon spotted frogs can be distinguished from other native species by their relatively short hind legs, orange or red wash of color on underside of abdomen and legs, and upturned chartreuse...
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Mercury Cycling and Effects on Ecological Communities

Mercury contamination is a serious issue that impacts both ecosystem and human health on a global scale. In its organic (methylmercury) form, mercury is highly bioaccumulative and is among the most toxic compounds commonly found in the environment. Mercury is a relatively distinctive contaminant in the sense that the risk of deleterious environmental effects is more strongly related to ecological...
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Mercury Cycling and Effects on Ecological Communities

Mercury contamination is a serious issue that impacts both ecosystem and human health on a global scale. In its organic (methylmercury) form, mercury is highly bioaccumulative and is among the most toxic compounds commonly found in the environment. Mercury is a relatively distinctive contaminant in the sense that the risk of deleterious environmental effects is more strongly related to ecological...
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