Tyler Wagner, PhD (Former Employee)
Science and Products
Filter Total Items: 15
No Result Found
Filter Total Items: 124
Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science through data reuse Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science through data reuse
Although there are considerable site-based data for individual or groups of ecosystems, these datasets are widely scattered, have different data formats and conventions, and often have limited accessibility. At the broader scale, national datasets exist for a large number of geospatial features of land, water, and air that are needed to fully understand variation among these ecosystems...
Authors
Patricia A. Soranno, E.G. Bissell, Kendra S. Cheruvelil, Samuel T. Christel, Sarah M. Collins, C. Emi Fergus, Christopher T. Filstrup, Jean-Francois Lapierre, Noah R. Lotting, Samantha K. Oliver, Caren E. Scott, Nicole J. Smith, Scott Stopyak, Shuai Yuan, Mary Tate Bremigan, John A. Downing, Corinna Gries, Emily N. Henry, Nick K. Skaff, Emily H. Stanley, Craig A. Stow, Pang-Ning Tan, Tyler Wagner, Katherine E. Webster
Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma) Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma)
Delineation of stock structure is important for understanding the ecology and management of many fish populations, particularly those with wide-ranging distributions and high levels of harvest. Southern flounder (Paralichthys lethostigma) is a popular commercial and recreational species along the southeast Atlantic coast and Gulf of Mexico, USA. Recent studies have provided genetic and...
Authors
Stephen R. Midway, Tyler Wagner, Stephen A. Arnott, Patrick Biondo, Fernando Martinez-Andrade, Thomas F. Wadsworth
Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers
Flow and water temperature are fundamental properties of stream ecosystems upon which many freshwater resource management decisions are based. U.S. Geological Survey (USGS) gages are the most important source of streamflow and water temperature data available nationwide, but the degree to which gages represent landscape attributes of the larger population of streams has not been...
Authors
Tyler Wagner, Jefferson Tyrell DeWeber, Yin-Phan Tsang, Damon Krueger, Joanna B. Whittier, Dana M. Infante, Gary Whelan
Predicting Brook Trout occurrence in stream reaches throughout their native range in the eastern United States Predicting Brook Trout occurrence in stream reaches throughout their native range in the eastern United States
The Brook Trout Salvelinus fontinalis is an important species of conservation concern in the eastern USA. We developed a model to predict Brook Trout population status within individual stream reaches throughout the species’ native range in the eastern USA. We utilized hierarchical logistic regression with Bayesian estimation to predict Brook Trout occurrence probability, and we allowed...
Authors
Jefferson Tyrell DeWeber, Tyler Wagner
Evaluating changes in stream fish species richness over a 50-year time-period within a landscape context Evaluating changes in stream fish species richness over a 50-year time-period within a landscape context
Worldwide, streams and rivers are facing a suite of pressures that alter water quality and degrade physical habitat, both of which can lead to changes in the composition and richness of fish populations. These potential changes are of particular importance in the Southeast USA, home to one of the richest stream fish assemblages in North America. Using data from 83 stream sites in North...
Authors
Stephen R. Midway, Tyler Wagner, Bryn H. Tracy, Gabriela M. Hogue, Wayne C. Starnes
Evaluation of a regional monitoring program's statistical power to detect temporal trends in forest health indicators Evaluation of a regional monitoring program's statistical power to detect temporal trends in forest health indicators
Forests are socioeconomically and ecologically important ecosystems that are exposed to a variety of natural and anthropogenic stressors. As such, monitoring forest condition and detecting temporal changes therein remain critical to sound public and private forestland management. The National Parks Service’s Vital Signs monitoring program collects information on many forest health...
Authors
Stephanie J. Perles, Tyler Wagner, Brian J. Irwin, Douglas R. Manning, Kristina K. Callahan, Matthew R. Marshall
Comparative bioenergetics modeling of two Lake Trout morphotypes Comparative bioenergetics modeling of two Lake Trout morphotypes
Efforts to restore Lake Trout Salvelinus namaycush in the Laurentian Great Lakes have been hampered for decades by several factors, including overfishing and invasive species (e.g., parasitism by Sea Lampreys Petromyzon marinus and reproductive deficiencies associated with consumption of Alewives Alosa pseudoharengus). Restoration efforts are complicated by the presence of multiple body...
Authors
Megan V. Kepler, Tyler Wagner, John A. Sweka
Setting objectives for managing Key deer Setting objectives for managing Key deer
The U.S. Fish and Wildlife Service (FWS) is responsible for the protection and management of Key deer (Odocoileus virginianus clavium) because the species is listed as Endangered under the Endangered Species Act (ESA). The purpose of the ESA is to protect and recover imperiled species and the ecosystems upon which they depend. There are a host of actions that could possibly be undertaken...
Authors
Duane R. Diefenbach, Tyler Wagner, Glenn E. Stauffer
Long-term citizen-collected data reveal geographical patterns and temporal trends in lake water clarity Long-term citizen-collected data reveal geographical patterns and temporal trends in lake water clarity
We compiled a lake-water clarity database using publicly available, citizen volunteer observations made between 1938 and 2012 across eight states in the Upper Midwest, USA. Our objectives were to determine (1) whether temporal trends in lake-water clarity existed across this large geographic area and (2) whether trends were related to the lake-specific characteristics of latitude, lake...
Authors
Noah R. Lottig, Tyler Wagner, Emily N. Henry, Kendra Spence Cheruvelil, Katherine E. Webster, John A. Downing, Craig A. Stow
Cross-scale interactions: Quantifying multi-scaled cause–effect relationships in macrosystems Cross-scale interactions: Quantifying multi-scaled cause–effect relationships in macrosystems
Ecologists are increasingly discovering that ecological processes are made up of components that are multi-scaled in space and time. Some of the most complex of these processes are cross-scale interactions (CSIs), which occur when components interact across scales. When undetected, such interactions may cause errors in extrapolation from one region to another. CSIs, particularly those...
Authors
Patricia A. Soranno, Kendra S. Cheruvelil, Edward G. Bissell, Mary T. Bremigan, John A. Downing, Carol E. Fergus, Christopher T. Filstrup, Emily N. Henry, Noah R. Lottig, Emily H. Stanley, Craig A. Stow, Pang-Ning Tan, Tyler Wagner, Katherine E. Webster
Approaches for advancing scientific understanding of macrosystems Approaches for advancing scientific understanding of macrosystems
The emergence of macrosystems ecology (MSE), which focuses on regional- to continental-scale ecological patterns and processes, builds upon a history of long-term and broad-scale studies in ecology. Scientists face the difficulty of integrating the many elements that make up macrosystems, which consist of hierarchical processes at interacting spatial and temporal scales. Researchers must...
Authors
Ofir Levy, Becky A. Ball, Ben Bond-Lamberty, Kendra S. Cheruvelil, Andrew O. Finley, Noah R. Lottig, Surangi W. Punyasena, Jingfeng Xiao, Jizhong Zhou, Lauren B. Buckley, Christopher T. Filstrup, Tim H. Keitt, James R. Kellner, Alan K. Knapp, Andrew D. Richardson, David Tcheng, Michael Toomey, Rodrigo Vargas, James W. Voordeckers, Tyler Wagner, John W. Williams
Modeling spatially-varying landscape change points in species occurrence thresholds Modeling spatially-varying landscape change points in species occurrence thresholds
Predicting species distributions at scales of regions to continents is often necessary, as large-scale phenomena influence the distributions of spatially structured populations. Land use and land cover are important large-scale drivers of species distributions, and landscapes are known to create species occurrence thresholds, where small changes in a landscape characteristic results in...
Authors
Tyler Wagner, Stephen R. Midway
Filter Total Items: 23
Science and Products
Filter Total Items: 15
No Result Found
Filter Total Items: 124
Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science through data reuse Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science through data reuse
Although there are considerable site-based data for individual or groups of ecosystems, these datasets are widely scattered, have different data formats and conventions, and often have limited accessibility. At the broader scale, national datasets exist for a large number of geospatial features of land, water, and air that are needed to fully understand variation among these ecosystems...
Authors
Patricia A. Soranno, E.G. Bissell, Kendra S. Cheruvelil, Samuel T. Christel, Sarah M. Collins, C. Emi Fergus, Christopher T. Filstrup, Jean-Francois Lapierre, Noah R. Lotting, Samantha K. Oliver, Caren E. Scott, Nicole J. Smith, Scott Stopyak, Shuai Yuan, Mary Tate Bremigan, John A. Downing, Corinna Gries, Emily N. Henry, Nick K. Skaff, Emily H. Stanley, Craig A. Stow, Pang-Ning Tan, Tyler Wagner, Katherine E. Webster
Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma) Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma)
Delineation of stock structure is important for understanding the ecology and management of many fish populations, particularly those with wide-ranging distributions and high levels of harvest. Southern flounder (Paralichthys lethostigma) is a popular commercial and recreational species along the southeast Atlantic coast and Gulf of Mexico, USA. Recent studies have provided genetic and...
Authors
Stephen R. Midway, Tyler Wagner, Stephen A. Arnott, Patrick Biondo, Fernando Martinez-Andrade, Thomas F. Wadsworth
Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers
Flow and water temperature are fundamental properties of stream ecosystems upon which many freshwater resource management decisions are based. U.S. Geological Survey (USGS) gages are the most important source of streamflow and water temperature data available nationwide, but the degree to which gages represent landscape attributes of the larger population of streams has not been...
Authors
Tyler Wagner, Jefferson Tyrell DeWeber, Yin-Phan Tsang, Damon Krueger, Joanna B. Whittier, Dana M. Infante, Gary Whelan
Predicting Brook Trout occurrence in stream reaches throughout their native range in the eastern United States Predicting Brook Trout occurrence in stream reaches throughout their native range in the eastern United States
The Brook Trout Salvelinus fontinalis is an important species of conservation concern in the eastern USA. We developed a model to predict Brook Trout population status within individual stream reaches throughout the species’ native range in the eastern USA. We utilized hierarchical logistic regression with Bayesian estimation to predict Brook Trout occurrence probability, and we allowed...
Authors
Jefferson Tyrell DeWeber, Tyler Wagner
Evaluating changes in stream fish species richness over a 50-year time-period within a landscape context Evaluating changes in stream fish species richness over a 50-year time-period within a landscape context
Worldwide, streams and rivers are facing a suite of pressures that alter water quality and degrade physical habitat, both of which can lead to changes in the composition and richness of fish populations. These potential changes are of particular importance in the Southeast USA, home to one of the richest stream fish assemblages in North America. Using data from 83 stream sites in North...
Authors
Stephen R. Midway, Tyler Wagner, Bryn H. Tracy, Gabriela M. Hogue, Wayne C. Starnes
Evaluation of a regional monitoring program's statistical power to detect temporal trends in forest health indicators Evaluation of a regional monitoring program's statistical power to detect temporal trends in forest health indicators
Forests are socioeconomically and ecologically important ecosystems that are exposed to a variety of natural and anthropogenic stressors. As such, monitoring forest condition and detecting temporal changes therein remain critical to sound public and private forestland management. The National Parks Service’s Vital Signs monitoring program collects information on many forest health...
Authors
Stephanie J. Perles, Tyler Wagner, Brian J. Irwin, Douglas R. Manning, Kristina K. Callahan, Matthew R. Marshall
Comparative bioenergetics modeling of two Lake Trout morphotypes Comparative bioenergetics modeling of two Lake Trout morphotypes
Efforts to restore Lake Trout Salvelinus namaycush in the Laurentian Great Lakes have been hampered for decades by several factors, including overfishing and invasive species (e.g., parasitism by Sea Lampreys Petromyzon marinus and reproductive deficiencies associated with consumption of Alewives Alosa pseudoharengus). Restoration efforts are complicated by the presence of multiple body...
Authors
Megan V. Kepler, Tyler Wagner, John A. Sweka
Setting objectives for managing Key deer Setting objectives for managing Key deer
The U.S. Fish and Wildlife Service (FWS) is responsible for the protection and management of Key deer (Odocoileus virginianus clavium) because the species is listed as Endangered under the Endangered Species Act (ESA). The purpose of the ESA is to protect and recover imperiled species and the ecosystems upon which they depend. There are a host of actions that could possibly be undertaken...
Authors
Duane R. Diefenbach, Tyler Wagner, Glenn E. Stauffer
Long-term citizen-collected data reveal geographical patterns and temporal trends in lake water clarity Long-term citizen-collected data reveal geographical patterns and temporal trends in lake water clarity
We compiled a lake-water clarity database using publicly available, citizen volunteer observations made between 1938 and 2012 across eight states in the Upper Midwest, USA. Our objectives were to determine (1) whether temporal trends in lake-water clarity existed across this large geographic area and (2) whether trends were related to the lake-specific characteristics of latitude, lake...
Authors
Noah R. Lottig, Tyler Wagner, Emily N. Henry, Kendra Spence Cheruvelil, Katherine E. Webster, John A. Downing, Craig A. Stow
Cross-scale interactions: Quantifying multi-scaled cause–effect relationships in macrosystems Cross-scale interactions: Quantifying multi-scaled cause–effect relationships in macrosystems
Ecologists are increasingly discovering that ecological processes are made up of components that are multi-scaled in space and time. Some of the most complex of these processes are cross-scale interactions (CSIs), which occur when components interact across scales. When undetected, such interactions may cause errors in extrapolation from one region to another. CSIs, particularly those...
Authors
Patricia A. Soranno, Kendra S. Cheruvelil, Edward G. Bissell, Mary T. Bremigan, John A. Downing, Carol E. Fergus, Christopher T. Filstrup, Emily N. Henry, Noah R. Lottig, Emily H. Stanley, Craig A. Stow, Pang-Ning Tan, Tyler Wagner, Katherine E. Webster
Approaches for advancing scientific understanding of macrosystems Approaches for advancing scientific understanding of macrosystems
The emergence of macrosystems ecology (MSE), which focuses on regional- to continental-scale ecological patterns and processes, builds upon a history of long-term and broad-scale studies in ecology. Scientists face the difficulty of integrating the many elements that make up macrosystems, which consist of hierarchical processes at interacting spatial and temporal scales. Researchers must...
Authors
Ofir Levy, Becky A. Ball, Ben Bond-Lamberty, Kendra S. Cheruvelil, Andrew O. Finley, Noah R. Lottig, Surangi W. Punyasena, Jingfeng Xiao, Jizhong Zhou, Lauren B. Buckley, Christopher T. Filstrup, Tim H. Keitt, James R. Kellner, Alan K. Knapp, Andrew D. Richardson, David Tcheng, Michael Toomey, Rodrigo Vargas, James W. Voordeckers, Tyler Wagner, John W. Williams
Modeling spatially-varying landscape change points in species occurrence thresholds Modeling spatially-varying landscape change points in species occurrence thresholds
Predicting species distributions at scales of regions to continents is often necessary, as large-scale phenomena influence the distributions of spatially structured populations. Land use and land cover are important large-scale drivers of species distributions, and landscapes are known to create species occurrence thresholds, where small changes in a landscape characteristic results in...
Authors
Tyler Wagner, Stephen R. Midway
Filter Total Items: 23