Julian Avery
Assistant Research Professor
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0119 Forest Resources
University Park, PA - jda121@psu.edu
- 814-865-7541
Research Summary
Conservation biology, invasive species ecology, effects of human disturbance on biodiversity, illegal reptilian wildlife trade, animal coloration and the ecology of visual signals.
Huck Graduate Students
Huck Affiliations
Links
Most Recent Publications
Correction to: Understanding and managing introduction pathways into protected areas in a changing climate (Biological Invasions, (2025), 27, 2, (74), 10.1007/s10530-025-03534-3)
Deah Lieurance, Susan Canavan, Katelyn T. Faulkner, Kathryn A. O’Shaughnessy, Julie L. Lockwood, Elliott W. Parsons, Julian Avery, Wesley Daniel, 2025, Biological Invasions
Understanding and managing introduction pathways into protected areas in a changing climate
Deah Lieurance, Susan Canavan, Katelyn Faulkner, Kathryn O’Shaughnessy, Julie Lockwood, Elliott Parsons, J Avery, Wesley Daniel, 2025, Biological Invasions on p. 74
Food availability has direct and delayed effects on structural growth and body reserves in garter snakes
Carli R. Dinsmore, Anne Bronikowski, Amanda M. Sparkman, Courtney Davis, David Muñoz, Julian Avery, Stevan J. Arnold, David A.W. Miller, 2025, Ecology
Feeding habits and ecological implications of the invasive Flathead Catfish in the Susquehanna River basin, Pennsylvania
Sydney Stark, Megan Schall, Geoffrey D. Smith, Aaron P. Maloy, Jason A. Coombs, Tyler Wagner, Julian Avery, 2024, Transactions of the American Fisheries Society on p. 591-610
A call to integrate non-visual functions of pigments and their interactions with visual functions to understand global change impacts on visual systems
Beth A. Reinke, Julian D. Avery, Jessica Hua, 2024, Functional Ecology
Princes and paupers: effects of annual and early-life resource variability on demography in populations of common garter snakes, (Thamnophis sirtalis)
C Dinsmore, Anne Bronikowski, Amanda Sparkman, David Munoz, Courtney Davis, Julian Avery, Steven Arnold, David Miller, 2024, Journal of Herpetology on p. 118817
Whole genome assessment of a declining game bird reveals cryptic genetic structure and insights for population management
Leilton W. Luna, Lisa M. Williams, Kenneth Duren, Reina Tyl, David P.L. Toews, Julian D. Avery, 2023, Molecular Ecology on p. 5498-5513
By ‘helping’ wild animals, you could end their freedom or even their lives – here’s why you should keep your distance
Julian Avery, 2023, The Conversation
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
Most-Cited Papers
Seeking International Agreement on What it Means To be “Native”
James J. Gilroy, Julian D. Avery, Julie L. Lockwood, 2017, Conservation Letters on p. 238-247
Evaluating the long-term effectiveness of terrestrial protected areas: a 40-year look at forest bird diversity
Jeffrey A. Brown, Julie L. Lockwood, Julian D. Avery, J. Curtis Burkhalter, Kevin Aagaard, Katherine H. Fenn, 2019, Biodiversity and Conservation on p. 811-826
Seabird longline bycatch reduction devices increase target catch while reducing bycatch: A meta-analysis
Julian D. Avery, Kevin Aagaard, J. C. Burkhalter, Orin J. Robinson, 2017, Journal for Nature Conservation on p. 37-45
Honest signals and sexual conflict: Female lizards carry undesirable indicators of quality
Braulio A. Assis, Julian D. Avery, Catherine Tylan, Heather I. Engler, Ryan L. Earley, Tracy Langkilde, 2021, Ecology and Evolution on p. 7647-7659
Experimental playback of natural gas compressor noise reduces incubation time and hatching success in two secondary cavity-nesting bird species
Julian Avery, Danielle Williams, J Avery, T Gabrielson, M Brittingham-Brant, Margaret Brittingham, 2021, Ornithological Applications on p. 1-11
Plastic sexual ornaments: Assessing temperature effects on color metrics in a color-changing reptile
B. A. Assis, Benjamin Jarrett, Gabe Koscky, Tracy Lee Langkilde, Julian Avery, 2020, PLoS One
Trade-off between Thermal Quality and Predation Risk at Timber Rattlesnake Gestation Sites
Mark W. Herr, Julian D. Avery, Tracy Langkilde, Christopher Howey, 2020, Journal of Herpetology on p. 196-205
Introduction history, impacts, and management of house sparrows in North America
Julian D. Avery, Julie L. Lockwood, 2017, on p. 359-384
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
Optimization of a suite of flathead catfish (Pylodictis olivaris) microsatellite markers for understanding the population genetics of introduced populations in the northeast United States
Shannon L. White, Michael S. Eackles, Tyler Wagner, Megan Schall, Geoff Smith, Julian Avery, David C. Kazyak, 2021, BMC Research Notes
News Articles Featuring Julian Avery
Oct 29, 2024
Invasive catfish impacting Susquehanna's food chain
Flathead catfish, native to the Mississippi River basin, were first detected in the Susquehanna River in 2002, according to a release from Penn State College of Agricultural Sciences.
Full Article
Dec 15, 2023
Why Mister Grouse Is the Friendliest Bird in the Forest
About Grouse birds
Full Article
Oct 04, 2023
Ruffed grouse population more resilient than expected, genetic study finds
Despite decades of decline, a genetic analysis of ruffed grouse reveals that Pennsylvania’s state bird harbors more genetic diversity and connectivity than expected.
Full Article
Jun 30, 2023
By ‘helping’ wild animals, you could end their freedom or even their lives – here’s why you should keep your distance
For anyone who enjoys nature, summer is a fascinating time to be outside. Animals are on the move: Turtles are nesting, baby birds are testing their wings, snakes are foraging and young mammals are emerging.
Full Article
Jul 18, 2022
Pennsylvania is home to 3 types of venomous snakes. Here’s how to spot them.
In summer it’s not uncommon to find a snake or two curled up under your porch or around your woodpile. But there’s no need to call in the cavalry, nearly all of Pennsylvania’s 21 species of snakes are harmless.
Full Article
Jul 15, 2020
Ecology Institute announces grant recipients
The Ecology Institute has awarded 11 proposals from across the University as part of its Flower Grant program, including five projects submitted by faculty at Commonwealth Campuses.
Full Article
Jun 23, 2020
Sunnier but riskier
Conservation efforts that open up the canopy of overgrown habitat for threatened timber rattlesnakes — whose venom is used in anticoagulants and other medical treatments — are beneficial to snakes but could come at a cost, according to a new study by researchers at Penn State and the University of Scranton.
Full Article
May 25, 2020
Keeping tabs on neighborhood wildlife may hook you on all the action
Watching wildlife outside your window can boost your mental well-being, and it’s something lots of people have been doing a lot more of lately.
Full Article
Mar 08, 2020
Expert-approved ways to feed all your favorite birds
The cardinals and hummingbirds will appreciate it, as will the hawks and the crows.
Full Article
Mar 05, 2020
Top Tips for Feeding Wild Birds
It’s OK to feed wild birds. Here are some tips for doing it the right way from a wildlife ecologist.
Full Article
Mar 02, 2020
It's OK to feed wild birds – here are some tips for doing it the right way
Millions of Americans enjoy feeding and watching backyard birds. Many people make a point of putting food out in winter, when birds needs extra energy, and spring, when many species build nests and raise young.
Full Article