Dr. Tracy Langkilde
Principle Investigator
Professor and Head
Department of Biology
208 Mueller Lab, University Park, PA
814-867-2251
tll30(at)psu(dot)edu
Curriculum Vitae
Tracy is a Professor and Head of the Department of Biology. She received her PhD from the University of Sydney (Dr. Rick Shine, advisor), and did her postdoctoral work at Yale as a Donnelley Environmental Fellow (Dr. David Skelly, postdoc mentor). Tracy is interested how interactions between organisms shape their ecology, and in understanding the mechanisms and consequences of of population-level responses to global environmental change.
Image: Patrick Mansell
Graduate Students
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Caty Tylan Caty completed her Doctor of Veterinary Medicine degree at Purdue University. Caty is interested in comparative biology, physiology, immunology, and using science to inform the treatment of animals. For her PhD, Caty is applying her expertise gained in veterinary school to addressing questions of basic and applied significance, including validating and optimizing immune assays for use in understanding the consequences of stress on the immune system, and in understanding how invasive species affect the physiology of native animals. |
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Dustin Owen
Dustin completed a MSc at Austin Peay State University, on the impacts of prescribed fire on the stress physiology of two sympatric snakes. His undergraduate work was on the physiological impacts of roads on copperheads (Agkistrodon contortrix). For his PhD, Dustin is continuing research on stress physiology and its ecological implications, including the potential of females to match their offspring to prevailing environmental stress. He just completed his final field season examining metabolic consequences of maternal stress. |
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Braulio Assis Braulio completed a MSc at Adelphi University, studying the effect of disproportionate allometry in the reproductive success of spiders. His PhD research investigates sexual ornamentation in females and its fitness implications. He is currently completing a large study to examine the hormonal causes and correlations of female ornamentation, its condition-signaling potential, and the maternal heritability of this sexual trait. |
Undergraduate and Other Researchers
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Richard Novak Richard joined the lab in fall 2016. He assisted on a project looking at rattlesnake gestation site use with Chris Howey. Richard is currently writing up the results of an independent research project on how macroinvertebrate communities in vernal pools are impacted by prescribed fire. Find out more about his research by reading his Blog post. |
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Heather Engler Heather joined the lab in summer 2016. She has been providing our lizards excellent care, and assisted on many projects including those testing the consequences of male-typical ornamentation in females, with Braulio Assis, and effects of maternal stress with Dustin Owen. Heather is currently undertaking an independent research project on whether the size of male post-anal scales are associated with other fitness-relevant traits. Find out about Heather's transition from accounting to biology by reading her Blog post. |
Lab Alumni
Postdoctoral Fellows
Dr. Kirsty MacLeod - Marie Skłodowska Curie Research Fellow, Lund University/Simon Fraser University/University of Tasmania
Dr. Chris Howey - Assistant Professor, Scranton University
Dr. Sean Graham - Assistant Professor, Sul Ross State University
Dr. Travis Robbins - Instructor, University of Nebraska, Omaha
Graduate Students
Dr. Cameron Venable - Postdoctoral Scholar, University of Michigan
Dr. David Ensminger - NSF Postdoctoral Fellow, UC Berkeley
Dr. Catherine Pritchard - Postdoctoral Scholar, Penn State
Dr. Gail McCormick - Communication Strategist, Eberly College of Science Communications Office, Penn State
Dr. Chris Thawley - Visiting Professor, Davidson College
Dr. Jennifer Tennessen - NOAA Postdoctoral Researcher (contractor)
Dr. Lindsey Swierk - Assistant Research Professor, Binghamton University - State University of New York
Dr. Brad Carlson - Assistant Professor, Wabash College
Dr. Renee Rosier - Instructor, Clarion University
Mrs. Kelly (Brossman) Malloy (MSc) - Biologist, PA Fish and Boat Commission
Research Associate
Dr. Tom Adams - Research Associate, College of Agricultural Sciences, Penn State
Lab Manager
Nicole Freidenfelds - Science Teacher, Tolland High School
Undergraduate Researchers
We have had over 40 undergraduates contribute to the research in the Langkilde lab. Without them, the lab would not be as productive, energetic, and inspired. Find out more about undergraduate research in the Langkilde Lab.
Thank you to everyone who has contributed, including Elexa Baron, Katie Boronow, Courtney Brenner, Alan Centi, Tommy Cerri, Sean Dailey, Dana Davis, Grace Dewitt, Jennifer Gerhart, Mark Goldy-Brown, Erica Green, Ashley Hallowell, Jennifer Heppner, Mark Herr, Hannah Herriott, Mike Hook, Lauren Horne, Steve Howarth, Aaron Jacobs, Dan Knapp, Andrew Watts, Jason Langshaw, Nisha Ligon, Justin Malloy, Nick Mayer, Shannen McGinley, Michaleia Mead, Max Morgan, Abigail Myers, Lucas Nell, Marie Noah, Courtney Norjen, Jill Newman, Melissa O'Brien, Edward Owen, Alex Pianovich, Jett Peng, Andrea Racic, Matt Ridgway, Erik Schlaich, Shawn Snyder, Kristen Sprayberry, Brent Storm, Devin Tierney, Jasmyn Trent, Whitney Trompeter, Dayna Ukwuoma, Maria Urtecho, Jennie Williams, Boon Wong, Cecilia Zemanek, and Maggie Zemanek .
Dr. Kirsty MacLeod - Marie Skłodowska Curie Research Fellow, Lund University/Simon Fraser University/University of Tasmania
Dr. Chris Howey - Assistant Professor, Scranton University
Dr. Sean Graham - Assistant Professor, Sul Ross State University
Dr. Travis Robbins - Instructor, University of Nebraska, Omaha
Graduate Students
Dr. Cameron Venable - Postdoctoral Scholar, University of Michigan
Dr. David Ensminger - NSF Postdoctoral Fellow, UC Berkeley
Dr. Catherine Pritchard - Postdoctoral Scholar, Penn State
Dr. Gail McCormick - Communication Strategist, Eberly College of Science Communications Office, Penn State
Dr. Chris Thawley - Visiting Professor, Davidson College
Dr. Jennifer Tennessen - NOAA Postdoctoral Researcher (contractor)
Dr. Lindsey Swierk - Assistant Research Professor, Binghamton University - State University of New York
Dr. Brad Carlson - Assistant Professor, Wabash College
Dr. Renee Rosier - Instructor, Clarion University
Mrs. Kelly (Brossman) Malloy (MSc) - Biologist, PA Fish and Boat Commission
Research Associate
Dr. Tom Adams - Research Associate, College of Agricultural Sciences, Penn State
Lab Manager
Nicole Freidenfelds - Science Teacher, Tolland High School
Undergraduate Researchers
We have had over 40 undergraduates contribute to the research in the Langkilde lab. Without them, the lab would not be as productive, energetic, and inspired. Find out more about undergraduate research in the Langkilde Lab.
Thank you to everyone who has contributed, including Elexa Baron, Katie Boronow, Courtney Brenner, Alan Centi, Tommy Cerri, Sean Dailey, Dana Davis, Grace Dewitt, Jennifer Gerhart, Mark Goldy-Brown, Erica Green, Ashley Hallowell, Jennifer Heppner, Mark Herr, Hannah Herriott, Mike Hook, Lauren Horne, Steve Howarth, Aaron Jacobs, Dan Knapp, Andrew Watts, Jason Langshaw, Nisha Ligon, Justin Malloy, Nick Mayer, Shannen McGinley, Michaleia Mead, Max Morgan, Abigail Myers, Lucas Nell, Marie Noah, Courtney Norjen, Jill Newman, Melissa O'Brien, Edward Owen, Alex Pianovich, Jett Peng, Andrea Racic, Matt Ridgway, Erik Schlaich, Shawn Snyder, Kristen Sprayberry, Brent Storm, Devin Tierney, Jasmyn Trent, Whitney Trompeter, Dayna Ukwuoma, Maria Urtecho, Jennie Williams, Boon Wong, Cecilia Zemanek, and Maggie Zemanek .
