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Threatened and Endangered Species

Filter Total Items: 14

Evaluate Propagation Efforts and Determine Dispersal Patterns for Quadrula fragosa from Tagged, Artificially Infested Host Fish (Ictalurus punctatus) in the St. Croix National Scenic Riverway (SACN)

The Winged Mapleleaf mussel (Quadrula fragosa) is only known to inhabit five locations in the U.S., and the population in the St. Croix National Scenic Riverway is isolated both physically and genetically from the other populations. In 2000, the U.S. Fish and Wildlife Service (USFWS) issued Reasonable and Prudent Measures, which required the U.S. Army Corps of Engineers (USACE) to establish...
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Evaluate Propagation Efforts and Determine Dispersal Patterns for Quadrula fragosa from Tagged, Artificially Infested Host Fish (Ictalurus punctatus) in the St. Croix National Scenic Riverway (SACN)

The Winged Mapleleaf mussel (Quadrula fragosa) is only known to inhabit five locations in the U.S., and the population in the St. Croix National Scenic Riverway is isolated both physically and genetically from the other populations. In 2000, the U.S. Fish and Wildlife Service (USFWS) issued Reasonable and Prudent Measures, which required the U.S. Army Corps of Engineers (USACE) to establish...
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Improving Survival of Juvenile Winged Mapleleaf Mussels (Quadrula fragosa) Through Identification of Host Fish Overwintering Areas

The St. Croix National Scenic Riverway (SACN) is one of the last refuges for rapidly declining populations of native unionid mussels in the United States and supports the only known self-sustaining population of the federally endangered Winged Mapleleaf mussel (Quadrula fragosa) in the upper Mississippi River basin. The Channel Catfish (Ictalurus punctatus) is the only known host for Winged...
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Improving Survival of Juvenile Winged Mapleleaf Mussels (Quadrula fragosa) Through Identification of Host Fish Overwintering Areas

The St. Croix National Scenic Riverway (SACN) is one of the last refuges for rapidly declining populations of native unionid mussels in the United States and supports the only known self-sustaining population of the federally endangered Winged Mapleleaf mussel (Quadrula fragosa) in the upper Mississippi River basin. The Channel Catfish (Ictalurus punctatus) is the only known host for Winged...
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Decision-support tool for managing endangered species in the face of uncertainty

Along the Santa Clara River in California, populations of the federally and state-listed Least Bell's Vireo (Vireo bellii pusillus) are recovering from near extirpation. Habitat protection and restoration, as well as reducing brood parasitism by Brown-headed Cowbirds (Molothrus ater), are thought to be the primary drivers of this recovery. The challenge going forward is to find the right balance...
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Decision-support tool for managing endangered species in the face of uncertainty

Along the Santa Clara River in California, populations of the federally and state-listed Least Bell's Vireo (Vireo bellii pusillus) are recovering from near extirpation. Habitat protection and restoration, as well as reducing brood parasitism by Brown-headed Cowbirds (Molothrus ater), are thought to be the primary drivers of this recovery. The challenge going forward is to find the right balance...
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Development of Sampling Protocols and Diagnostic Tools for Assessment of Freshwater Mussel Health

Assessing Impacts of Emerging and Established Diseases to Aquatic EcosystemsThe role of disease in freshwater mussel declines has been largely ignored due to the lack of appropriate diagnostic tools. Furthermore, health assessment of mussels in conjunction with restoration and propagation has not been considered during stocking and augmentation activities. This project will develop standard...
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Development of Sampling Protocols and Diagnostic Tools for Assessment of Freshwater Mussel Health

Assessing Impacts of Emerging and Established Diseases to Aquatic EcosystemsThe role of disease in freshwater mussel declines has been largely ignored due to the lack of appropriate diagnostic tools. Furthermore, health assessment of mussels in conjunction with restoration and propagation has not been considered during stocking and augmentation activities. This project will develop standard...
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Assessing Impacts of Emerging and Established Diseases to Aquatic Ecosystems

Native freshwater mussels play a critical role in aquatic environments and are considered “ecosystem engineers” and indicators of water quality by constantly filtering water. Populations of native freshwater mussels have declined in recent years, and this decline has been attributed to factors such as habitat degradation, pollution, and invasive species, among others. The importance of these...
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Assessing Impacts of Emerging and Established Diseases to Aquatic Ecosystems

Native freshwater mussels play a critical role in aquatic environments and are considered “ecosystem engineers” and indicators of water quality by constantly filtering water. Populations of native freshwater mussels have declined in recent years, and this decline has been attributed to factors such as habitat degradation, pollution, and invasive species, among others. The importance of these...
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Investigation Into Mass Mussel Die-off Events

Assessing Impacts of Emerging and Established Diseases to Aquatic EcosystemsThe decline of native freshwater mussels has the potential to devastate aquatic communities. Although factors such as habitat degradation, pollution, and invasive species have been linked to this decline, these potential causes cannot fully explain the large-scale mussel die-offs that have occurred in the past 20 years...
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Investigation Into Mass Mussel Die-off Events

Assessing Impacts of Emerging and Established Diseases to Aquatic EcosystemsThe decline of native freshwater mussels has the potential to devastate aquatic communities. Although factors such as habitat degradation, pollution, and invasive species have been linked to this decline, these potential causes cannot fully explain the large-scale mussel die-offs that have occurred in the past 20 years...
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Development of Selective Control Tools

Management Tools for Dreissenid MusselsCurrently, dreissenid mussel populations are spreading and becoming a growing problem in many aquatic systems, making it important to find management techniques that are selective for the invasive mussel populations while leaving the native populations intact. Control technology for dreissenids in open water currently relies on a limited number of...
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Development of Selective Control Tools

Management Tools for Dreissenid MusselsCurrently, dreissenid mussel populations are spreading and becoming a growing problem in many aquatic systems, making it important to find management techniques that are selective for the invasive mussel populations while leaving the native populations intact. Control technology for dreissenids in open water currently relies on a limited number of...
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Bat Research

White-nose syndrome (WNS) caused by the fungal pathogen Pseudogymnoascus destructans (Pd) has decimated hibernating bat populations across North America since it emerged 10 years ago in New York. As Pd has spread across North America, infection dynamics and mortality from WNS have varied among species and across sites. The mechanisms behind vulnerability of species across the current and expanding...
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Bat Research

White-nose syndrome (WNS) caused by the fungal pathogen Pseudogymnoascus destructans (Pd) has decimated hibernating bat populations across North America since it emerged 10 years ago in New York. As Pd has spread across North America, infection dynamics and mortality from WNS have varied among species and across sites. The mechanisms behind vulnerability of species across the current and expanding...
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Integrating colony counts with NABat acoustic data to reveal the true impacts of White-Nose Syndrome on northern long-eared bats

Bat ResearchResearch collaboration: Brian Reichert (FORT), Wayne Thogmartin (UMESC), Winifred Frick (Bat Conservation International), Tina Cheng (Bat Conservation International)The northern long-eared bat (Myotis septentrionalis) was listed as Threatened on the Endangered Species Act in 2014 due to rapid declines in numbers of observed hibernating bats at winter roosting sites after the arrival of...
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Integrating colony counts with NABat acoustic data to reveal the true impacts of White-Nose Syndrome on northern long-eared bats

Bat ResearchResearch collaboration: Brian Reichert (FORT), Wayne Thogmartin (UMESC), Winifred Frick (Bat Conservation International), Tina Cheng (Bat Conservation International)The northern long-eared bat (Myotis septentrionalis) was listed as Threatened on the Endangered Species Act in 2014 due to rapid declines in numbers of observed hibernating bats at winter roosting sites after the arrival of...
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A continental-scale study of acoustic phenology to improve population monitoring and inform management of hibernating bats

Bat ResearchResearch collaboration: Winifred Frick (Bat Conservation International), Theodore Weller (U.S. Forest Service), Wayne Thogmartin (UMESC), Craig Willis (University of Winnipeg), and Brian Reichert (FORT)White-nose Syndrome (WNS) has caused severe declines in bat populations over the past 10 years and colony sizes at winter hibernacula have decreased on average by >90% for three species...
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A continental-scale study of acoustic phenology to improve population monitoring and inform management of hibernating bats

Bat ResearchResearch collaboration: Winifred Frick (Bat Conservation International), Theodore Weller (U.S. Forest Service), Wayne Thogmartin (UMESC), Craig Willis (University of Winnipeg), and Brian Reichert (FORT)White-nose Syndrome (WNS) has caused severe declines in bat populations over the past 10 years and colony sizes at winter hibernacula have decreased on average by >90% for three species...
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Modeling the response of cave hibernating Myotis species to white-nose syndrome mitigation tactics

Bat ResearchResearch collaboration: Robin Russell (NWHC), Tonie Rocke (NWHC), Wayne Thogmartin (UMESC), Evan Grant (PWRC)White-nose syndrome is a fungal disease devastating cave-hibernating bat species (Myotis spp.) in the eastern United States. Several mitigation tactics have been proposed to alleviate the effects of white-nose syndrome on bats including probiotics and vaccination. Questions...
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Modeling the response of cave hibernating Myotis species to white-nose syndrome mitigation tactics

Bat ResearchResearch collaboration: Robin Russell (NWHC), Tonie Rocke (NWHC), Wayne Thogmartin (UMESC), Evan Grant (PWRC)White-nose syndrome is a fungal disease devastating cave-hibernating bat species (Myotis spp.) in the eastern United States. Several mitigation tactics have been proposed to alleviate the effects of white-nose syndrome on bats including probiotics and vaccination. Questions...
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Quantifying vulnerability of bat species to White-nose Syndrome across North America

Bat ResearchResearch collaboration: Winifred Frick (Bat Conservation International), Brian Reichert (FORT), Theodore Weller (US Forest Service), Wayne Thogmartin (UMESC) and the North American Bat Colony Count ConsortiumWe quantify vulnerability of bat species in North America to target and prioritize management actions toward species and habitats that are most at risk from impacts from White-nose...
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Quantifying vulnerability of bat species to White-nose Syndrome across North America

Bat ResearchResearch collaboration: Winifred Frick (Bat Conservation International), Brian Reichert (FORT), Theodore Weller (US Forest Service), Wayne Thogmartin (UMESC) and the North American Bat Colony Count ConsortiumWe quantify vulnerability of bat species in North America to target and prioritize management actions toward species and habitats that are most at risk from impacts from White-nose...
Learn More