Tracy Langkilde
Penn State Interim Executive Vice President and Provost; Dean of the Eberly College of Science; Professor of Biology
-
517 Thomas
University Park, PA - She/Her
- tll30@psu.edu
- 814-863-4530
Research Summary
The interface of ecology and evolution to understand how an organism's traits are matched to its environment and responds to novel selective pressures imposed by global environmental change, and the consequences of this adaptation.
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Lizards Glucocorticoids Corticosterone Lizard Pregnancy Phenotype Hormones Fire Ants Effect Mothers Sceloporus Undulatus Wild Animals Reptiles Population Vertebrates Predator Predators Costs And Cost Analysis Ecology Birds Ant Breeding Physiological Stress Gastrointestinal Microbiome ChromosomesMost Recent Publications
The effects of early-life and intergenerational stress on the brain
Lara D. Ladage, Gail L. McCormick, Travis R. Robbins, Anna S. Longwell, Tracy Langkilde, 2023, Proceedings of the Royal Society B: Biological Sciences
Consumption of fire ants, an invasive predator and prey of native lizards, may enhance immune functions needed to combat envenomation
C. Tylan, H. I. Engler, G. Villar, T. Langkilde, 2023, Biological Invasions on p. 725-740
Fitness Costs of Maternal Ornaments and Prenatal Corticosterone Manifest as Reduced Offspring Survival and Sexual Ornament Expression
Braulio A. Assis, Julian D. Avery, Ryan L. Earley, Tracy Langkilde, 2022, Frontiers in Endocrinology
Masculinized Sexual Ornaments in Female Lizards Correlate with Ornament-Enhancing Thermoregulatory Behavior
B. A. Assis, J. D. Avery, R. L. Earley, T. Langkilde, 2022, Integrative Organismal Biology
Context-dependent effects of glucocorticoids on the lizard gut microbiome
Kirsty J. MacLeod, Kevin D. Kohl, Brian K. Trevelline, Tracy Langkilde, 2022, Molecular Ecology on p. 185-196
Compensating for a stressful pregnancy? Glucocorticoid treatment during gravidity reduces metabolic rate in female fence lizards post-parturition
K. J. MacLeod, T. Langkilde, J. J. Heppner, C. A.F. Howey, K. Sprayberry, C. Tylan, M. J. Sheriff, 2021, Hormones and Behavior
The influence of maternal glucocorticoids on offspring phenotype in high-and low-risk environments
Kirsty J. MacLeod, Tracy Langkilde, Cameron P. Venable, David C. Ensminger, Michael J. Sheriff, 2021, Behavioral Ecology on p. 1330-1338
A chromosome-level genome assembly for the eastern fence lizard (Sceloporus undulatus), a reptile model for physiological and evolutionary ecology
Aundrea K. Westfall, Rory S. Telemeco, Mariana B. Grizante, Damien S. Waits, Amanda D. Clark, Dasia Y. Simpson, Randy L. Klabacka, Alexis P. Sullivan, George H. Perry, Michael W. Sears, Christian L. Cox, Robert M. Cox, Matthew E. Gifford, Henry B. John-Alder, Tracy Langkilde, Michael J. Angilletta, Adam D. Leaché, Marc Tollis, Kenro Kusumi, Tonia S. Schwartz, 2021, GigaScience
One and done: A single encounter with an invasive predator determines subsequent antipredator behavior of naive juvenile lizards
Travis R. Robbins, Tracy Langkilde, 2021, Climate Change Ecology
Elevated glucocorticoids during gestation suggest sex-specific effects on offspring telomere lengths in a wild lizard
David C. Ensminger, Sue R. Siegel, Dustin A.S. Owen, Michael J. Sheriff, Tracy Langkilde, 2021, Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
Most-Cited Papers
Traffic noise causes physiological stress and impairs breeding migration behaviour in frogs
Jennifer B. Tennessen, Susan E. Parks, Tracy Langkilde, 2014, Conservation Physiology
The role of behaviour in the establishment of novel traits
Marlene Zuk, Elizabeth Bastiaans, Tracy Langkilde, Elizabeth Swanger, 2014, Animal Behaviour on p. 333-344
How do duration, frequency, and intensity of exogenous CORT elevation affect immune outcomes of stress?
Gail L. McCormick, Katriona Shea, Tracy Langkilde, 2015, General and Comparative Endocrinology on p. 81-87
In ovo microbial communities: A potential mechanism for the initial acquisition of gut microbiota among oviparous birds and lizards
Brian K. Trevelline, Kirsty J. MacLeod, Sarah A. Knutie, Tracy Langkilde, Kevin D. Kohl, 2018, Biology Letters
Maternal stress alters the phenotype of the mother, her eggs and her offspring in a wild-caught lizard
David C. Ensminger, Tracy Langkilde, Dustin A.S. Owen, Kirsty J. MacLeod, Michael J. Sheriff, 2018, Journal of Animal Ecology on p. 1685-1697
Latitudinal and seasonal variation in reproductive effort of the eastern fence lizard (Sceloporus undulatus)
Weiguo Du, Travis R. Robbins, Daniel A. Warner, Tracy Langkilde, Richard Shine, 2014, Integrative Zoology on p. 360-371
Survival and reproductive costs of repeated acute glucocorticoid elevations in a captive, wild animal
K. J. MacLeod, M. J. Sheriff, D. C. Ensminger, D. A.S. Owen, T. Langkilde, 2018, General and Comparative Endocrinology on p. 1-6
Obtaining plasma to measure baseline corticosterone concentrations in reptiles: How quick is quick enough?
Catherine Tylan, Kiara Camacho, Susannah French, Sean P. Graham, Mark W. Herr, Jermayne Jones, Gail L. McCormick, Melissa A. O'Brien, Jennifer B. Tennessen, Christopher J. Thawley, Alison Webb, Tracy Langkilde, 2020, General and Comparative Endocrinology
Ancestry trumps experience: Transgenerational but not early life stress affects the adult physiological stress response
Gail L. McCormick, Travis R. Robbins, Sonia A. Cavigelli, Tracy Langkilde, 2017, Hormones and Behavior on p. 115-121
Are invasive species stressful? The glucocorticoid profile of native lizards exposed to invasive fire ants depends on the context
Sean P. Graham, Nicole A. Freidenfelds, Christopher J. Thawley, Travis R. Robbins, Tracy Langkilde, 2017, Physiological and Biochemical Zoology on p. 328-337
News Articles Featuring Tracy Langkilde
Apr 16, 2024
Penn State announces interim executive vice president and provost ahead of national search
Tracy Langkilde has been announced as interim executive vice president and provost of Penn State
Full Article
Apr 16, 2024
Tracy Langkilde appointed interim executive vice president and provost
Tracy Langkilde, the Verne M. Willaman Dean of the Eberly College of Science, has been named interim executive vice president and provost of Penn State, effective April 15. Langkilde succeeds Executive Vice President and Provost Justin Schwartz, who has been named as the sole finalist for chancellor of the University of Colorado Boulder and will depart Penn State this summer.
Full Article
Feb 15, 2024
Committee advances plan to rename Chemistry Building as 'Benkovic Building'
The Chemistry Building at the University Park campus will be renamed in honor of the careerlong scholarly impact of Stephen Benkovic, Atherton Professor of Chemistry
Full Article
Jan 15, 2024
Honors for Booker, Girirajan, Llinás
3 Penn State researchers have received awards and new titles
Full Article
Oct 17, 2023
Manuel Llinás named as the Ernest C. Pollard Professor in Biotechnology
Manuel Llinás, distinguished professor of biochemistry and molecular biology and of chemistry in the Penn State Eberly College of Science, has been named the Ernest C. Pollard Professor in Biotechnology.
Full Article
Oct 03, 2023
Girirajan named T. Ming Chu Professor of Biochemistry and Molecular Biology
Santhosh Girirajan, professor and interim head of the Penn State Department of Biochemistry and Molecular Biology, has been named the T. Ming Chu Professor of Biochemistry and Molecular Biology.
Full Article
Jul 06, 2023
Penn State chemist Stephen Benkovic named Atherton Professor
Stephen Benkovic, Evan Pugh Professor and Holder of the Eberly Family Chair in Chemistry at Penn State, has been honored by Penn State with the title of Atherton Professor.
Full Article
Apr 07, 2023
These Lizards Stress-Eat When Loud Military Aircraft Fly Overhead
Colorado checkered whiptails on a U.S. Army base show increased stress levels and altered behavior after noisy jets and helicopters pass by, a study finds
Full Article
Mar 30, 2023
This lizard species stress-eats to cope with noisy US Army aircraft
Living in a neighborhood with lots of noise can make you jittery, especially if you're a lizard that's just a few inches long. It's no wonder that lizards exposed to noise pollution from low-flying fighter jets have resorted to stress-eating.
Full Article
Mar 29, 2023
This lizard species stress-eats to cope with noisy US Army aircraft
Living in a neighborhood with lots of noise can make you jittery, especially if you’re a lizard that’s just a few inches long. It’s no wonder that lizards exposed to noise pollution from low-flying fighter jets have resorted to stress-eating.
Full Article