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Between September and November each year, nearly the entire world population of Pacific black brant (Branta bernicla nigricans) stages at Izembek Lagoon and surrounding estuaries (hereafter: Izembek Complex). The Izembek Complex is a unique area of protected brackish waters, supporting one of the world’s largest eelgrass beds and a diverse array of wildlife. The Alaska Fall Brant Survey has been conducted annually since 1976 in late-September through October, to provide an index of abundance for the entire post-breeding Pacific black brant population (Branta bernicla nigricans), while secondarily, providing annual fall population indices for cackling geese (Branta hutchinsii), emperor geese (Anser canagicus), and...
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One of the most visible signs of climate change is less mountain snow. In the Western U.S., deep snow has historically been a cornerstone of life for many plants and animals. For example, snow can provide denning shelter for certain species like the wolverine, and snowmelt provides dependable water to mountain streams that are home to fish like the bull trout. Yet snow losses driven by warming temperatures are already causing land and water managers to rethink whether certain species can thrive in the future. A recently completed study by this research team helped the U.S. Fish and Wildlife Service investigate whether wolverines will have enough snow to survive in two areas of the Rocky Mountains. In June 2020,...
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Amphibians are a group of animals facing especially severe declines due to many factors including climate change and a common pathogen, the amphibian chytrid fungus. To make informed decisions about amphibians, wildlife managers need to identify species facing the greatest threats and the actions that will most effectively minimize impacts of those threats. Although some amphibian species are relatively well-studied, for most, data to inform management decisions are lacking. Therefore, tools to assist managers must be applicable to amphibian species across a range of data availability and susceptibility to climate change and other threats. In this project, researchers will determine which amphibians in the North...
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Black ash wetlands occupy over 1.2 million hectares of forest in the Great Lakes region, providing habitat for unique and diverse wildlife communities. In these wetlands, black ash trees are a foundational species, regulating all aspects of ecosystem function, and are also an important cultural resource for Native Americans, specifically for basket-makers. Black ash wetlands are critically threatened by the interaction of climate change and the invasive emerald ash borer (EAB), which is expected to spread northward and westward into large expanses of black ash with warming winters. These threats present a significant challenge for long-term conservation efforts to preserve ecosystem functions, cultural lifeways,...
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Many of North America’s most rapidly declining avifauna breed in the boreal and alpine ecosystems of Alaska. Joint Base Elmendorf-Richardson (JBER) located in Anchorage, Alaska, provides critical nesting habitat for five avian Species of Special Concern (SOSC): Solitary Sandpiper Tringa solitaria, Lesser Yellowlegs Tringa flavipes, Olive-sided Flycatcher Contopus cooperi, Rusty Blackbird Euphagus carolinus and Blackpoll Warbler Setophaga striata. Joint Base Elmendorf-Richardson derived the Species of Special Concern list from the Birds of Conservation Concern (USFWS 2008) and the Department of Defense Mission-Sensitive Priority Bird Species (DoD PIF 2015) lists. Department of Defense Partners in Flight recognizes...
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The National Park Service is responsible for managing livestock grazing on 94 locations across the country and several grazing management planning efforts for this work are underway. However, there is a recognized need to update grazing management plans to address potential future effects of climate change on related resources and practices. This is the second phase of a project that is using scenario planning (a strategic planning technique used to inform decision-making in the face of uncertain future conditions) to support grazing management at Dinosaur National Monument. In the first phase of the project (Integrating Climate Considerations into Grazing Management Programs in National Parks), the research team...
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The roselaari subspecies of Red Knot is one of the rarest shorebird populations breeding in North America, based on a the current population size estimate of 17,000 individuals (Carmona et al 2013). As a result of suspected declines,the roselaari subspecies has been designated as threatened by the Committee on the Status of Endangered Wildlife in Canada and was petitioned for listing under the U.S. Endangered Species Act. The U.S. Fish and Wildlife Service’s decision to not conduct a full status review for listing was based on the lack of substantial information identifying threats and population trends (USFWS 2011). The apparent low population size coupled with the scarcity of information on many demographic and...
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Even when faced with uncertainty about future climate conditions, resource managers are tasked with making planning and adaptation decisions that impact important natural and cultural resources. Species distribution models are widely used by both researchers and managers to estimate species responses to climate change. These models combine data on environmental variables (e.g., temperature, precipitation) with field samples of a species’ presence, absence, and/or abundance to project and visualize potential habitat of the species across space and time. However, species distribution modeling software previously developed and supported by USGS (the Software for Assisted Habitat Modeling [SAHM] package for VisTrails)...
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The Pacific Flyway Winter Brant Survey (WBS) has been conducted annually since 1981 as part of a cooperative effort by the U.S. Fish and Wildlife Service, Canadian Wildlife Service, Mexico, and the Pacific U.S. states, to estimate the abundance of the Pacific black brant (Branta bernicla nigricans) in their principal wintering areas along the Pacific Coast (in Baja, Mexico, California, Oregon, Washington, British Columbia, and Alaska). The survey is conducted each winter in January-February by a composite of ground and aerial crews, with the Alaska portion being conducted by the Alaska Region of USFWS Migratory Bird Management. The primary objective of the Alaska survey component is to provide an annual index of...
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The roselaari subspecies of Red Knot is one of the rarest shorebird populations breeding in North America, based on a the current population size estimate of 17,000 individuals (Carmona et al 2013). As a result of suspected declines,the roselaari subspecies has been designated as threatened by the Committee on the Status of Endangered Wildlife in Canada and was petitioned for listing under the U.S. Endangered Species Act. The U.S. Fish and Wildlife Service’s decision to not conduct a full status review for listing was based on the lack of substantial information identifying threats and population trends (USFWS 2011). The apparent low population size coupled with the scarcity of information on many demographic and...
    map background search result map search result map A Framework for Guiding Management Decisions for Amphibians in an Uncertain Future Estimating Future High-Mountain Snowpack to Inform Terrestrial and Aquatic Species Status Assessments, Recovery Plans, and Monitoring Modeling to Support Grazing Management Planning in U.S. National Parks: A Case Study from Dinosaur National Monument Developing A New Software Package to Enhance Species Distribution Model Functionality Assessing the Impacts of Emerald Ash Borer and Adaptation Strategies on Habitat Quality for At Risk Wildlife in Black Ash Forests Alaska Izembek Brant Winter Aerial Survey 1981-present Alaska Izembek Fall Brant Aerial Survey 1976-Present Alaska Red Knot Breeding Ecology Study 2010-Present Alaska Red Knot Migration Study 2015-Present Alaska Joint Base Elmendorf-Richardson Installation Avian Study 2007-Present Alaska Red Knot Migration Study 2015-Present Modeling to Support Grazing Management Planning in U.S. National Parks: A Case Study from Dinosaur National Monument Alaska Izembek Fall Brant Aerial Survey 1976-Present Alaska Izembek Brant Winter Aerial Survey 1981-present Alaska Joint Base Elmendorf-Richardson Installation Avian Study 2007-Present Alaska Red Knot Breeding Ecology Study 2010-Present Assessing the Impacts of Emerald Ash Borer and Adaptation Strategies on Habitat Quality for At Risk Wildlife in Black Ash Forests Estimating Future High-Mountain Snowpack to Inform Terrestrial and Aquatic Species Status Assessments, Recovery Plans, and Monitoring A Framework for Guiding Management Decisions for Amphibians in an Uncertain Future Developing A New Software Package to Enhance Species Distribution Model Functionality