Paul Angermeier, PhD
Assistant Unit Leader - Virginia Cooperative Fish and Wildlife Research Unit
Research Interests
- Stream fish communities
- Assessing quality of aquatic resources
- Conservation of aquatic systems
Professional Experience
Assistant Unit Leader, Virginia Cooperative Fish and Wildlife Research Unit, 2010-
Science and Products
Filter Total Items: 65
Size-structured habitat selection by arapaima in floodplain lakes of the lower Amazon
Human modification of floodplain ecosystems is widespread and a major threat to fish populations, particularly in the tropics where fish diversity and rates of floodplain degradation are high. Identifying measures to minimize the susceptibility of floodplain fishes to habitat modification requires understanding dry-season lake habitat selection for species of conservation concern.This study examin
Authors
Paul L. Angermeier, Jordan C. Richard, Leandro Castello, Daniel J. Gurdak, Brandon K. Peoples
A new modeling approach to prioritize riparian restoration to reduce sediment loading in two Virginia river basins
Human impact, particularly land cover changes (e.g., agriculture, construction) increase erosion and sediment loading into streams. Benthic species are negatively affected by silt deposition that coats and embeds stream substrate. Given that riparian buffers are effective sediment filters, riparian restoration is increasingly implemented by conservation groups to protect stream habitats. Limited f
Authors
Lisa N. Scott, Amy M. Villamagna, Paul L. Angermeier
Macroinvertebrate sensitivity thresholds for sediment in Virginia streams
Sediment is the most commonly identified pollutant associated with macroinvertebrate community impairments in freshwater streams nationwide. Management of this physical stressor is complicated by the multiple measures of sediment available (e.g., suspended, dissolved, bedded) and the variability in natural “healthy” sediment loadings across ecoregions. Here we examine the relative importance of 9
Authors
Heather Govenor, Leigh Anne H. Krometis, Lawrence Willis, Paul L. Angermeier, W. Cully Hession
Spatial extent of analysis influences observed patterns of population genetic structure in a widespread darter species (Percidae)
Connectivity among stream fish populations allows for exchange of genetic material and helps maintain genetic diversity, adaptive potential and population stability over time. Changes in species demographics and population connectivity have the potential to permanently alter the genetic patterns of stream fish, although these changes through space and time are variable and understudied in small‐bo
Authors
Jane E. Argentina, Paul L. Angermeier, Eric M. Hallerman, Stuart A. Welsh
Seventy years of stream‐fish collections reveal invasions and native range contractions in an Appalachian (USA) watershed
AimKnowledge of expanding and contracting ranges is critical for monitoring invasions and assessing conservation status, yet reliable data on distributional trends are lacking for most freshwater species. We developed a quantitative technique to detect the sign (expansion or contraction) and functional form of range‐size changes for freshwater species based on collections data, while accounting fo
Authors
Joseph D. Buckwalter, Emmanuel A. Frimpong, Paul L. Angermeier, Jacob N. Barney
The future of animal reintroduction
No abstract available.
Authors
David S. Jachowski, Rob Slotow, Paul L. Angermeier, Joshua J. Millspaugh
Development of habitat suitability indices for the Candy Darter, with cross-scale validation across representative populations
Understanding relationships between habitat associations for individuals and habitat factors that limit populations is a primary challenge for managers of stream fishes. Although habitat use by individuals can provide insight into the adaptive significance of selected microhabitats, not all habitat parameters will be significant at the population level, particularly when distributional patterns pa
Authors
Corey G. Dunn, Paul L. Angermeier
A long-term study of ecological impacts of river channelization on the population of an endangered fish: Lessons learned for assessment and restoration
Projects to assess environmental impact or restoration success in rivers focus on project-specific questions but can also provide valuable insights for future projects. Both restoration actions and impact assessments can become “adaptive” by using the knowledge gained from long-term monitoring and analysis to revise the actions, monitoring, conceptual model, or interpretation of findings so that s
Authors
James H. Roberts, Gregory B. Anderson, Paul L. Angermeier
Population viability analysis for endangered Roanoke logperch
A common strategy for recovering endangered species is ensuring that populations exceed the minimum viable population size (MVP), a demographic benchmark that theoretically ensures low long-term extinction risk. One method of establishing MVP is population viability analysis, a modeling technique that simulates population trajectories and forecasts extinction risk based on a series of biological,
Authors
James H. Roberts, Paul L. Angermeier, Gregory B. Anderson
Pathways of fish invasions in the Mid-Atlantic region of the United States
Non-native fish introductions are a major threat to biodiversity and fisheries, and occur through numerous pathways that vary regionally in importance. A key strategy for managing invasions is to focus prevention efforts on pathways posing the greatest risk of future introductions. We identified high-risk pathways for fish establishment in the Mid-Atlantic region of the United States based on esti
Authors
Nicolas W. R. Lapointe, Pam Fuller, Matthew E. Neilson, Brian R. Murphy, Paul L. Angermeier
Extensive dispersal of Roanoke logperch (Percina rex) inferred from genetic marker data
The dispersal ecology of most stream fishes is poorly characterised, complicating conservation efforts for these species. We used microsatellite DNA marker data to characterise dispersal patterns and effective population size (Ne) for a population of Roanoke logperchPercina rex, an endangered darter (Percidae). Juveniles and candidate parents were sampled for 2 years at sites throughout the Roanok
Authors
James H. Roberts, Paul L. Angermeier, Eric M. Hallerman
Mapping technological and biophysical capacities of watersheds to regulate floods
Flood regulation is a widely valued and studied service provided by watersheds. Flood regulation benefits people directly by decreasing the socio-economic costs of flooding and indirectly by its positive impacts on cultural (e.g., fishing) and provisioning (e.g., water supply) ecosystem services. Like other regulating ecosystem services (e.g., pollination, water purification), flood regulation is
Authors
Beatriz Mogollón, Amy M. Villamagna, Emmanuel A. Frimpong, Paul L. Angermeier
Science and Products
Filter Total Items: 65
Size-structured habitat selection by arapaima in floodplain lakes of the lower Amazon
Human modification of floodplain ecosystems is widespread and a major threat to fish populations, particularly in the tropics where fish diversity and rates of floodplain degradation are high. Identifying measures to minimize the susceptibility of floodplain fishes to habitat modification requires understanding dry-season lake habitat selection for species of conservation concern.This study examin
Authors
Paul L. Angermeier, Jordan C. Richard, Leandro Castello, Daniel J. Gurdak, Brandon K. Peoples
A new modeling approach to prioritize riparian restoration to reduce sediment loading in two Virginia river basins
Human impact, particularly land cover changes (e.g., agriculture, construction) increase erosion and sediment loading into streams. Benthic species are negatively affected by silt deposition that coats and embeds stream substrate. Given that riparian buffers are effective sediment filters, riparian restoration is increasingly implemented by conservation groups to protect stream habitats. Limited f
Authors
Lisa N. Scott, Amy M. Villamagna, Paul L. Angermeier
Macroinvertebrate sensitivity thresholds for sediment in Virginia streams
Sediment is the most commonly identified pollutant associated with macroinvertebrate community impairments in freshwater streams nationwide. Management of this physical stressor is complicated by the multiple measures of sediment available (e.g., suspended, dissolved, bedded) and the variability in natural “healthy” sediment loadings across ecoregions. Here we examine the relative importance of 9
Authors
Heather Govenor, Leigh Anne H. Krometis, Lawrence Willis, Paul L. Angermeier, W. Cully Hession
Spatial extent of analysis influences observed patterns of population genetic structure in a widespread darter species (Percidae)
Connectivity among stream fish populations allows for exchange of genetic material and helps maintain genetic diversity, adaptive potential and population stability over time. Changes in species demographics and population connectivity have the potential to permanently alter the genetic patterns of stream fish, although these changes through space and time are variable and understudied in small‐bo
Authors
Jane E. Argentina, Paul L. Angermeier, Eric M. Hallerman, Stuart A. Welsh
Seventy years of stream‐fish collections reveal invasions and native range contractions in an Appalachian (USA) watershed
AimKnowledge of expanding and contracting ranges is critical for monitoring invasions and assessing conservation status, yet reliable data on distributional trends are lacking for most freshwater species. We developed a quantitative technique to detect the sign (expansion or contraction) and functional form of range‐size changes for freshwater species based on collections data, while accounting fo
Authors
Joseph D. Buckwalter, Emmanuel A. Frimpong, Paul L. Angermeier, Jacob N. Barney
The future of animal reintroduction
No abstract available.
Authors
David S. Jachowski, Rob Slotow, Paul L. Angermeier, Joshua J. Millspaugh
Development of habitat suitability indices for the Candy Darter, with cross-scale validation across representative populations
Understanding relationships between habitat associations for individuals and habitat factors that limit populations is a primary challenge for managers of stream fishes. Although habitat use by individuals can provide insight into the adaptive significance of selected microhabitats, not all habitat parameters will be significant at the population level, particularly when distributional patterns pa
Authors
Corey G. Dunn, Paul L. Angermeier
A long-term study of ecological impacts of river channelization on the population of an endangered fish: Lessons learned for assessment and restoration
Projects to assess environmental impact or restoration success in rivers focus on project-specific questions but can also provide valuable insights for future projects. Both restoration actions and impact assessments can become “adaptive” by using the knowledge gained from long-term monitoring and analysis to revise the actions, monitoring, conceptual model, or interpretation of findings so that s
Authors
James H. Roberts, Gregory B. Anderson, Paul L. Angermeier
Population viability analysis for endangered Roanoke logperch
A common strategy for recovering endangered species is ensuring that populations exceed the minimum viable population size (MVP), a demographic benchmark that theoretically ensures low long-term extinction risk. One method of establishing MVP is population viability analysis, a modeling technique that simulates population trajectories and forecasts extinction risk based on a series of biological,
Authors
James H. Roberts, Paul L. Angermeier, Gregory B. Anderson
Pathways of fish invasions in the Mid-Atlantic region of the United States
Non-native fish introductions are a major threat to biodiversity and fisheries, and occur through numerous pathways that vary regionally in importance. A key strategy for managing invasions is to focus prevention efforts on pathways posing the greatest risk of future introductions. We identified high-risk pathways for fish establishment in the Mid-Atlantic region of the United States based on esti
Authors
Nicolas W. R. Lapointe, Pam Fuller, Matthew E. Neilson, Brian R. Murphy, Paul L. Angermeier
Extensive dispersal of Roanoke logperch (Percina rex) inferred from genetic marker data
The dispersal ecology of most stream fishes is poorly characterised, complicating conservation efforts for these species. We used microsatellite DNA marker data to characterise dispersal patterns and effective population size (Ne) for a population of Roanoke logperchPercina rex, an endangered darter (Percidae). Juveniles and candidate parents were sampled for 2 years at sites throughout the Roanok
Authors
James H. Roberts, Paul L. Angermeier, Eric M. Hallerman
Mapping technological and biophysical capacities of watersheds to regulate floods
Flood regulation is a widely valued and studied service provided by watersheds. Flood regulation benefits people directly by decreasing the socio-economic costs of flooding and indirectly by its positive impacts on cultural (e.g., fishing) and provisioning (e.g., water supply) ecosystem services. Like other regulating ecosystem services (e.g., pollination, water purification), flood regulation is
Authors
Beatriz Mogollón, Amy M. Villamagna, Emmanuel A. Frimpong, Paul L. Angermeier