Phaedra Budy, PhD
Unit Leader - Utah Cooperative Fish and Wildlife Research Unit
Research Interests
Dr Budy's current research interests include aquatic ecology, fisheries, food web interactions, and anthropogenic impacts. Budy has been extensively involved with native and non-native fishes in the West.
Teaching Interests
Dr. Budy teaches graduate level classes in Fish Ecology, Population Ecology, and Population Assessment. She also teaches Fish Diversity & Conservation, Large River Management, and Principles of Stream Restoration.
Professional Experience
Unit Leader, Utah Cooperative Fish and Wildlife Research Unit, 2012-
Assistant Unit Leader, Utah Cooperative Fish and Wildlife Research Unit, 2000-2012
Education and Certifications
Ph D Utah State University 1996
BS University of California, Davis 1991
Science and Products
Filter Total Items: 38
Keeping it classy: Classification of live fish and ghost PIT tags detected with a mobile PIT tag interrogation system using an innovative analytical approach
The ability of passive integrated transponder (PIT) tag data to improve demographic parameter estimates has led to the rapid advancement of PIT tag systems. However, ghost tags create uncertainty about detected tag status (i.e., live fish or ghost tag) when using mobile interrogation systems. We developed a method to differentiate between live fish and ghost tags using a random forest classificati
Authors
J. Benjamin Stout, Mary Conner, Phaedra E. Budy, Peter Mackinnon, Mark McKinstry
Remarkable response of native fishes to invasive trout suppression varies with trout density, temperature, and annual hydrology
Recovery of imperiled fishes can be achieved through suppression of invasives, but outcomes may vary with environmental conditions. We studied the response of imperiled desert fishes to an invasive brown (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) suppression program in a Colorado River tributary, with natural flow and longitudinal variation in thermal characteristics. We investigated t
Authors
Brian D Healy, Robert Schelly, Charles Yackulic, Emily Omana Smith, Phaedra E. Budy
Estimating population abundance with a mixture of physical capture and passive PIT tag antenna detection data
The inclusion of passive interrogation antenna (PIA) detection data has promise to increase precision of population abundance estimates (). However, encounter probabilities are often higher for PIAs than for physical capture. If the difference is not accounted for, may be biased. Using simulations, we estimated the magnitude of bias resulting from mixed capture and detection probabilities and eva
Authors
Mary M. Conner, Phaedra E. Budy, Richard A. Wilkison, Michael Mills, David Speas, Peter D. Mackinnon, Mark C. Mckinstry
Dynamic Habitat Disturbance and Ecological Resilience (DyHDER): Modeling population responses to habitat condition
Understanding how populations respond to spatially heterogeneous habitat disturbance is as critical to conservation as it is challenging. Here, we present a new, free, and open-source metapopulation model: Dynamic Habitat Disturbance and Ecological Resilience (DyHDER), which incorporates subpopulation habitat condition and connectivity into a population viability analysis framework. Modeling tempo
Authors
Brendan P. Murphy, Timothy E. Walsworth, Patrick Belmont, Mary M. Conner, Phaedra E. Budy
Trout as native and non-native species: A management paradox
Native trout are threatened worldwide by introductions of non-native trout that in many cases are themselves threatened within their native range and historical habitats. This chapter focuses on this paradox and addresses how information gained to protect and restore a species in its native range can be used to suppress the same species outside its native range, where it may be invasive. We desc
Authors
Michael J. Hansen, Christopher S. Guy, Phaedra Budy, Thomas E. McMahon
We ain’t afraid of no ghosts: Tracking habitat interactions and movement dynamics of ghost PIT tags under differing flow conditions in a sand bed river
The use of PIT tags has rapidly proliferated since their introduction, and new mobile detection methods have been developed. However, the presence of ghost tags (i.e., PIT tags left in the system after a fish dies) creates uncertainty about the status (live or dead) of tags detected. Herein, we describe our raft-based mobile PIT tag antenna system, which was used to evaluate the movements of “seed
Authors
J. Benjamin Stout, Mary Conner, Phaedra E. Budy, Peter Mackinnon, Mark McKinstry
Distribution and status of trout and char in North America
No abstract available.
Authors
Phaedra Budy, Kevin B. Rogers, Yoichiro Kanno, Brooke E Penaluna, Nathaniel Hitt, Gary P. Thiede, Jason B. Dunham, Chad Mellison, William Somer, James DeRito
BioTIME: A database of biodiversity time series for the Anthropocene
MotivationThe BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity time series. Our goal is to accelerate and facilitate quant
Authors
Maria Dornelas, Laura H. Antao, Faye Moyes, Amanda E. Bates, Anne E. Magurran, Dusan Adam, Asem A. Akhmetzhanova, Ward Appeltans, Jose Manuel Arcos, Haley Arnold, Narayanan Ayyappan, Gal Badihi, Andrew H. Baird, Miguel Barbosa, Tiago Egydio Barreto, Claus Bassler, Alecia Bellgrove, Jonathan Belmaker, Lisandro Benedetti-Cecchi, Brian J. Bett, Anne D. Bjorkman, Magdalena Blazewicz, Shane Blowes, Christopher P. Bloch, Timothy C. Bonebrake, Susan Boyd, Matt Bradford, Andrew J. Brooks, James H. Brown, Helge Bruelheide, Phaedra E. Budy, Fernando Carvalho, Edward Castaneda-Moya, Chaolun Allen Chen, John F. Chamblee, Tory J. Chase, Laura Siegwart Collier, Sharon K. Collinge, Richard Condit, Elisabeth J. Cooper, J. Hans C. Cornelissen, Unai Cotano, Shannan Kyle Crow, Gabriella Damasceno, Claire H. Davies, Robert A. Davis, Frank P. Day, Steven Degraer, Tim S. Doherty, Timothy E. Dunn, Giselda Durigan, J. Emmett Duffy, Dor Edelist, Graham Edgar, Robin Elahi, Sarah C. Elmendorf, Anders Enemar, S. K. Morgan Ernest, Reuben Escribano, Marc Estiarte, Brian S. Evans, Tung-Yung Fan, Fabiano Turini Farah, Luiz Loureiro Fernandes, Fabio Z. Farneda, Alessandra Fidelis, Robert Fitt, Anna Maria Fosaa, Geraldo Antonio Daher Correa Franco, Grace E. Frank, William R. Fraser, Hernando Garcia, Roberto Cazzolla Gatti, Or Givan, Elizabeth Gorgone-Barbosa, William A. Gould, Corrina Gries, Gary D. Grossman, Julio R. Gutierrez, Stephen Hale, Mark E Harmon, John Harte, Gary Haskins, Henshaw Donald L., Luise Hermanutz, Pamela Hidalgo, Pedro Higuchi, Andrew Hoey, Gert Van Hoey, Annika Hofgaard, Kristen T. Holeck, Robert D. Hollister, Richard Holmes, Mia Hoogenboom, Chih-hao Hsieh, Steven P. Hubbell, Falk Huettmann, Christine L. Huffard, Allen H. Hurlbert, Natalia Macedo Ivanauskas, David Janik, Ute Jandt, Anna Jazdzewska, Tore Johannessen, Jill F. Johnstone, Julia Jones, Faith A. M. Jones, Jungwon Kang, Tasrif Kartawijaya, Erin C. Keeley, Douglas A. Kelt, Rebecca Kinnear, Kari Klanderud, Halvor Knutsen, Christopher C. Koenig, Alessandra R. Kortz, Kamil Kral, Linda A. Kuhnz, Chao-Yang Kuo, David J. Kushner, Claire Laguionie-Marchais, Lesley T. Lancaster, Cheol Min Lee, Jonathan S. Lefcheck, Esther Lévesque, David A. Lightfoot, Francisco Lloret, John D. Lloyd, Adrià López-Baucells, Maite Louzao, Joshua S. Madin, Borgbor Magnusson, Shahar Malamud, Iain Matthews, Kent P. McFarland, Brian J. McGill, Diane M. McKnight, William O. McLarney, Jason Meador, Peter L. Meserve, Daniel J. Metcalfe, Christoph F. J. Meyer, Anders Michelsen, Nataliya Milchakova, Tom Moens, Even Moland, Jon A. Moore, Carolina Mathias Moreira, Jorg Muller, Grace Murphy, Isla H. Myers-Smith, Randall W. Myster, Andrew Naumov, Francis Neat, James A. Nelson, Michael Paul Nelson, Stephen F. Newton, Natalia Norden, Jeffrey C. Oliver, Esben M. Olsen, Vladimir G. Onipchenko, Krzysztof Pabis, Robert J. Pabst, Alain Paquette, Sinta Pardede, David M. Paterson, Raphael Pelissier, Josep Penuelas, Alejandro Perez-Matus, Oscar Pizarro, Pomati. Francesco, Eric Post, Herbert H.T. Prins, John C. Priscu, Pieter Provoost, Kathleen L. Prudic, Erkki Pulliainen, B. R. Ramesh, Olivia Mendivil Ramos, Andrew Rassweiler, Jose Eduardo Rebelo, Daniel C. Reed, Peter B. Reich, Suzanne M. Remillard, Anthony J. Richardson, J. Paul Richardson, Itai van Rijn, Ricardo Rocha, Victor H. Rivera-Monroy, Christian Rixen, Kevin P. Robinson, Ricardo Ribeiro Rodrigues, Denise de Cerqueira Rossa-Feres, Lars G. Rudstam, Henry Ruhl, Catalina S. Ruz, Erica M. Sampaio, Nancy B. Rybicki, Andrew L. Rypel, Sofia Sal, Beatriz Salgado, Flavio A. M. Santos, Ana Paula Savassi-Coutinho, Sara E. Scanga, Jochen Schmidt, Robert L. Schooley, Fakhrizal Setiawan, Kwang-Tsao Shao, Gaius R. Shaver, Sally Sherman, Thomas W. Sherry, Jacek Sicinski, Caya Sievers, Ana Carolina da Silva, Fernando Rodrigues da Silva, Fabio L. Silveira, Jasper Slingsby, Tracey Smart, Sara J. Snell, Nadejda A. Soudzilovskaia, Gabriel B. G. Souza, Flaviana Maluf Souza, Vinicius Castro Souza, Christopher D. Stallings, Rowan Stanforth, Emily H. Stanley, Jose Mauro Sterza, Maarten Stevens, Rick D. Stuart-Smith, Yzel Rondon Suarez, Sarah Supp, Jorge Yoshio Tamashiro, Sukmaraharja Tarigan, Gary P. Thiede, Simon Thorn, Anne Tolvanen, Maria Theresa Zugliani Toniato, Orjan Totland, Robert R. Twilley, Gediminas Vaitkus, Nelson Valdivia, Martha Isabel Vallejo, Thomas J. Valone, Carl Van Colen, Jan Vanaverbeke, Fabio Venturoli, Hans M. Verheye, Marcelo Vianna, Rui P. Vieira, Tomas Vrska, Con Quang Vu, Lien Van Vu, Robert B. Waide, Conor Waldock, Dave Watts, Sara Webb, Tomasz Wesolowski, Ethan P. White, Claire E. Widdicombe, Dustin Wilgers, Richard S. Williams, Stefan B. Williams, Mark Williamson, Michael R. Willig, Trevor J. Willis, Sonja Wipf, Kerry D. Woods, Eric J. Woehler, Kyle Zawada, Michael L. Zettler
Modeling the fish community population dynamics and forecasting the eradication success of an exotic fish from an alpine stream
Management actions aimed at eradicating exotic fish species from riverine ecosystems can be better informed by forecasting abilities of mechanistic models. We illustrate this point with an example of the Logan River, Utah, originally populated with endemic cutthroat trout (Oncorhynchus clarkii utah), which compete with exotic brown trout (Salmo trutta). The coexistence equilibrium was disrupted by
Authors
Christophe Laplanche, Arnaud Elger, Frédéric Santoul, Gary P. Thiede, Phaedra Budy
Evaluating the conservation potential of tributaries for native fishes in the Upper Colorado River Basin
We explored the conservation potential of tributaries in the upper Colorado River basin by modeling native fish species richness as a function of river discharge, temperature, barrier‐free length, and distance to nearest free‐flowing main‐stem section. We investigated a historic period prior to large‐scale water development and a contemporary period. In the historic period, species richness was lo
Authors
Brian G. Laub, Gary P. Thiede, William W. Macfarlane, Phaedra Budy
Brown trout as an invader: A synthesis of problems and perspectives in western North America
Brown trout are one of the most pervasive and successful invaders worldwide and are ubiquitous across the Intermountain West, USA (IMW). This species is the foundation of extremely popular and economically significant sport fisheries despite well-established negative effects on native fishes and ecosystems, resulting in very challenging, and often opposing, conservation and management goals. Herei
Authors
Phaedra Budy, Jereme W. Gaeta
Quantifying long-term population growth rates of threatened bull trout: challenges, lessons learned, and opportunities
Temporal symmetry models (TSM) represent advances in the analytical application of mark–recapture data to population status assessments. For a population of char, we employed 10 years of active and passive mark–recapture data to quantify population growth rates using different data sources and analytical approaches. Estimates of adult population growth rate were 1.01 (95% confidence interval = 0.8
Authors
Phaedra Budy, Tracy Bowerman, Robert K. Al-Chokhachy, Mary Conner, Howard Schaller
Science and Products
Filter Total Items: 38
Keeping it classy: Classification of live fish and ghost PIT tags detected with a mobile PIT tag interrogation system using an innovative analytical approach
The ability of passive integrated transponder (PIT) tag data to improve demographic parameter estimates has led to the rapid advancement of PIT tag systems. However, ghost tags create uncertainty about detected tag status (i.e., live fish or ghost tag) when using mobile interrogation systems. We developed a method to differentiate between live fish and ghost tags using a random forest classificati
Authors
J. Benjamin Stout, Mary Conner, Phaedra E. Budy, Peter Mackinnon, Mark McKinstry
Remarkable response of native fishes to invasive trout suppression varies with trout density, temperature, and annual hydrology
Recovery of imperiled fishes can be achieved through suppression of invasives, but outcomes may vary with environmental conditions. We studied the response of imperiled desert fishes to an invasive brown (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) suppression program in a Colorado River tributary, with natural flow and longitudinal variation in thermal characteristics. We investigated t
Authors
Brian D Healy, Robert Schelly, Charles Yackulic, Emily Omana Smith, Phaedra E. Budy
Estimating population abundance with a mixture of physical capture and passive PIT tag antenna detection data
The inclusion of passive interrogation antenna (PIA) detection data has promise to increase precision of population abundance estimates (). However, encounter probabilities are often higher for PIAs than for physical capture. If the difference is not accounted for, may be biased. Using simulations, we estimated the magnitude of bias resulting from mixed capture and detection probabilities and eva
Authors
Mary M. Conner, Phaedra E. Budy, Richard A. Wilkison, Michael Mills, David Speas, Peter D. Mackinnon, Mark C. Mckinstry
Dynamic Habitat Disturbance and Ecological Resilience (DyHDER): Modeling population responses to habitat condition
Understanding how populations respond to spatially heterogeneous habitat disturbance is as critical to conservation as it is challenging. Here, we present a new, free, and open-source metapopulation model: Dynamic Habitat Disturbance and Ecological Resilience (DyHDER), which incorporates subpopulation habitat condition and connectivity into a population viability analysis framework. Modeling tempo
Authors
Brendan P. Murphy, Timothy E. Walsworth, Patrick Belmont, Mary M. Conner, Phaedra E. Budy
Trout as native and non-native species: A management paradox
Native trout are threatened worldwide by introductions of non-native trout that in many cases are themselves threatened within their native range and historical habitats. This chapter focuses on this paradox and addresses how information gained to protect and restore a species in its native range can be used to suppress the same species outside its native range, where it may be invasive. We desc
Authors
Michael J. Hansen, Christopher S. Guy, Phaedra Budy, Thomas E. McMahon
We ain’t afraid of no ghosts: Tracking habitat interactions and movement dynamics of ghost PIT tags under differing flow conditions in a sand bed river
The use of PIT tags has rapidly proliferated since their introduction, and new mobile detection methods have been developed. However, the presence of ghost tags (i.e., PIT tags left in the system after a fish dies) creates uncertainty about the status (live or dead) of tags detected. Herein, we describe our raft-based mobile PIT tag antenna system, which was used to evaluate the movements of “seed
Authors
J. Benjamin Stout, Mary Conner, Phaedra E. Budy, Peter Mackinnon, Mark McKinstry
Distribution and status of trout and char in North America
No abstract available.
Authors
Phaedra Budy, Kevin B. Rogers, Yoichiro Kanno, Brooke E Penaluna, Nathaniel Hitt, Gary P. Thiede, Jason B. Dunham, Chad Mellison, William Somer, James DeRito
BioTIME: A database of biodiversity time series for the Anthropocene
MotivationThe BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity time series. Our goal is to accelerate and facilitate quant
Authors
Maria Dornelas, Laura H. Antao, Faye Moyes, Amanda E. Bates, Anne E. Magurran, Dusan Adam, Asem A. Akhmetzhanova, Ward Appeltans, Jose Manuel Arcos, Haley Arnold, Narayanan Ayyappan, Gal Badihi, Andrew H. Baird, Miguel Barbosa, Tiago Egydio Barreto, Claus Bassler, Alecia Bellgrove, Jonathan Belmaker, Lisandro Benedetti-Cecchi, Brian J. Bett, Anne D. Bjorkman, Magdalena Blazewicz, Shane Blowes, Christopher P. Bloch, Timothy C. Bonebrake, Susan Boyd, Matt Bradford, Andrew J. Brooks, James H. Brown, Helge Bruelheide, Phaedra E. Budy, Fernando Carvalho, Edward Castaneda-Moya, Chaolun Allen Chen, John F. Chamblee, Tory J. Chase, Laura Siegwart Collier, Sharon K. Collinge, Richard Condit, Elisabeth J. Cooper, J. Hans C. Cornelissen, Unai Cotano, Shannan Kyle Crow, Gabriella Damasceno, Claire H. Davies, Robert A. Davis, Frank P. Day, Steven Degraer, Tim S. Doherty, Timothy E. Dunn, Giselda Durigan, J. Emmett Duffy, Dor Edelist, Graham Edgar, Robin Elahi, Sarah C. Elmendorf, Anders Enemar, S. K. Morgan Ernest, Reuben Escribano, Marc Estiarte, Brian S. Evans, Tung-Yung Fan, Fabiano Turini Farah, Luiz Loureiro Fernandes, Fabio Z. Farneda, Alessandra Fidelis, Robert Fitt, Anna Maria Fosaa, Geraldo Antonio Daher Correa Franco, Grace E. Frank, William R. Fraser, Hernando Garcia, Roberto Cazzolla Gatti, Or Givan, Elizabeth Gorgone-Barbosa, William A. Gould, Corrina Gries, Gary D. Grossman, Julio R. Gutierrez, Stephen Hale, Mark E Harmon, John Harte, Gary Haskins, Henshaw Donald L., Luise Hermanutz, Pamela Hidalgo, Pedro Higuchi, Andrew Hoey, Gert Van Hoey, Annika Hofgaard, Kristen T. Holeck, Robert D. Hollister, Richard Holmes, Mia Hoogenboom, Chih-hao Hsieh, Steven P. Hubbell, Falk Huettmann, Christine L. Huffard, Allen H. Hurlbert, Natalia Macedo Ivanauskas, David Janik, Ute Jandt, Anna Jazdzewska, Tore Johannessen, Jill F. Johnstone, Julia Jones, Faith A. M. Jones, Jungwon Kang, Tasrif Kartawijaya, Erin C. Keeley, Douglas A. Kelt, Rebecca Kinnear, Kari Klanderud, Halvor Knutsen, Christopher C. Koenig, Alessandra R. Kortz, Kamil Kral, Linda A. Kuhnz, Chao-Yang Kuo, David J. Kushner, Claire Laguionie-Marchais, Lesley T. Lancaster, Cheol Min Lee, Jonathan S. Lefcheck, Esther Lévesque, David A. Lightfoot, Francisco Lloret, John D. Lloyd, Adrià López-Baucells, Maite Louzao, Joshua S. Madin, Borgbor Magnusson, Shahar Malamud, Iain Matthews, Kent P. McFarland, Brian J. McGill, Diane M. McKnight, William O. McLarney, Jason Meador, Peter L. Meserve, Daniel J. Metcalfe, Christoph F. J. Meyer, Anders Michelsen, Nataliya Milchakova, Tom Moens, Even Moland, Jon A. Moore, Carolina Mathias Moreira, Jorg Muller, Grace Murphy, Isla H. Myers-Smith, Randall W. Myster, Andrew Naumov, Francis Neat, James A. Nelson, Michael Paul Nelson, Stephen F. Newton, Natalia Norden, Jeffrey C. Oliver, Esben M. Olsen, Vladimir G. Onipchenko, Krzysztof Pabis, Robert J. Pabst, Alain Paquette, Sinta Pardede, David M. Paterson, Raphael Pelissier, Josep Penuelas, Alejandro Perez-Matus, Oscar Pizarro, Pomati. Francesco, Eric Post, Herbert H.T. Prins, John C. Priscu, Pieter Provoost, Kathleen L. Prudic, Erkki Pulliainen, B. R. Ramesh, Olivia Mendivil Ramos, Andrew Rassweiler, Jose Eduardo Rebelo, Daniel C. Reed, Peter B. Reich, Suzanne M. Remillard, Anthony J. Richardson, J. Paul Richardson, Itai van Rijn, Ricardo Rocha, Victor H. Rivera-Monroy, Christian Rixen, Kevin P. Robinson, Ricardo Ribeiro Rodrigues, Denise de Cerqueira Rossa-Feres, Lars G. Rudstam, Henry Ruhl, Catalina S. Ruz, Erica M. Sampaio, Nancy B. Rybicki, Andrew L. Rypel, Sofia Sal, Beatriz Salgado, Flavio A. M. Santos, Ana Paula Savassi-Coutinho, Sara E. Scanga, Jochen Schmidt, Robert L. Schooley, Fakhrizal Setiawan, Kwang-Tsao Shao, Gaius R. Shaver, Sally Sherman, Thomas W. Sherry, Jacek Sicinski, Caya Sievers, Ana Carolina da Silva, Fernando Rodrigues da Silva, Fabio L. Silveira, Jasper Slingsby, Tracey Smart, Sara J. Snell, Nadejda A. Soudzilovskaia, Gabriel B. G. Souza, Flaviana Maluf Souza, Vinicius Castro Souza, Christopher D. Stallings, Rowan Stanforth, Emily H. Stanley, Jose Mauro Sterza, Maarten Stevens, Rick D. Stuart-Smith, Yzel Rondon Suarez, Sarah Supp, Jorge Yoshio Tamashiro, Sukmaraharja Tarigan, Gary P. Thiede, Simon Thorn, Anne Tolvanen, Maria Theresa Zugliani Toniato, Orjan Totland, Robert R. Twilley, Gediminas Vaitkus, Nelson Valdivia, Martha Isabel Vallejo, Thomas J. Valone, Carl Van Colen, Jan Vanaverbeke, Fabio Venturoli, Hans M. Verheye, Marcelo Vianna, Rui P. Vieira, Tomas Vrska, Con Quang Vu, Lien Van Vu, Robert B. Waide, Conor Waldock, Dave Watts, Sara Webb, Tomasz Wesolowski, Ethan P. White, Claire E. Widdicombe, Dustin Wilgers, Richard S. Williams, Stefan B. Williams, Mark Williamson, Michael R. Willig, Trevor J. Willis, Sonja Wipf, Kerry D. Woods, Eric J. Woehler, Kyle Zawada, Michael L. Zettler
Modeling the fish community population dynamics and forecasting the eradication success of an exotic fish from an alpine stream
Management actions aimed at eradicating exotic fish species from riverine ecosystems can be better informed by forecasting abilities of mechanistic models. We illustrate this point with an example of the Logan River, Utah, originally populated with endemic cutthroat trout (Oncorhynchus clarkii utah), which compete with exotic brown trout (Salmo trutta). The coexistence equilibrium was disrupted by
Authors
Christophe Laplanche, Arnaud Elger, Frédéric Santoul, Gary P. Thiede, Phaedra Budy
Evaluating the conservation potential of tributaries for native fishes in the Upper Colorado River Basin
We explored the conservation potential of tributaries in the upper Colorado River basin by modeling native fish species richness as a function of river discharge, temperature, barrier‐free length, and distance to nearest free‐flowing main‐stem section. We investigated a historic period prior to large‐scale water development and a contemporary period. In the historic period, species richness was lo
Authors
Brian G. Laub, Gary P. Thiede, William W. Macfarlane, Phaedra Budy
Brown trout as an invader: A synthesis of problems and perspectives in western North America
Brown trout are one of the most pervasive and successful invaders worldwide and are ubiquitous across the Intermountain West, USA (IMW). This species is the foundation of extremely popular and economically significant sport fisheries despite well-established negative effects on native fishes and ecosystems, resulting in very challenging, and often opposing, conservation and management goals. Herei
Authors
Phaedra Budy, Jereme W. Gaeta
Quantifying long-term population growth rates of threatened bull trout: challenges, lessons learned, and opportunities
Temporal symmetry models (TSM) represent advances in the analytical application of mark–recapture data to population status assessments. For a population of char, we employed 10 years of active and passive mark–recapture data to quantify population growth rates using different data sources and analytical approaches. Estimates of adult population growth rate were 1.01 (95% confidence interval = 0.8
Authors
Phaedra Budy, Tracy Bowerman, Robert K. Al-Chokhachy, Mary Conner, Howard Schaller