Submitted / In Review

Are sustainable biocommerce products that reproduce an Achilles' heel for
sustainable biocommerce, or can hobbyist culture tip the balance?

Yeager J, Scarpetta Gonzalez JM and Shepack A
In Revision

Batesians mimics are more detectable than their model in aerial and terrestrial view in a poison frog complex
McEwen BL, Kinley I, Anderson HM, Yeager J and Barnett JB
In Revision

An alluring new Masdevallia (Pleurothallidinae: Orchidaceae) from Ecuador
Baquero LER., Iturralde G, Mogrovejo AL. and Yeager J
In Revision

Cognitive Ecology of Surprise in Predator-Prey Interactions
Penacchio O, Hämäläinen L, Sherratt T, Summers K, Yeager J,, Rojas B & Exnerová A

The venom microbiome: A review on emerging microbiological research in venom
De Leon ME et al. (authors appear in alphabetical order) including: Yeager J

Evaluating the efficacy of alternate, sympatric, and imperfect anti-predatory strategies in butterflies:
evidence of generalized avoidance?

Yeager J, Robison A, Wade C & Barnett JB

Bringing Big Team Science to Comparative Cognition Research: Challenges and Ways Forward
Alessandroni, N. et al. (authors appear in alphabetical order) including: Yeager J


39. Integrating Environmental Conservation and Public Health Strategies to Combat Zoonotic Disease Emergence:
A Call to Action from the Amazon Rainforest

Ortiz-Prado E, Yeager J, Vásconez-González J, Izquierdo J
Frontiers in Cellular and Infection Microbiology (PDF)

38. Neotropical geography as a cradle for adaptive radiations and explosive diversifications
Guevara et al. (authors appear in alphabetical order) including: Yeager J
Cold Spring Harbor Perspectives in Biology (PDF)

37. Phage Therapy: Resurrecting a historical solution for the contemporary challenge of rising
antibiotic resistance in Latin America

Yeager J, Gomez-Jaramillo AM, Ortiz-Prado E, Calvopiña M, and Chan B
Expert Review of Anti-infective Therapy (PDF)


36. Are we prepared for potential repercussions of international sports events
in the midst of a global pandemic?

Ortiz-Prado E, Condoy JS, Yeager J, Vásconez-González J
Journal of Global Health (PDF)

35. Modeling defensive functions of alkaloids within diverse chemical portfolios
Yeager J, Viteri Chancusi PA, Perez-Castillo Y, Armijos-Jaramillo V, and Tejera E
Evolutionary Ecology special issue (PDF)

34. An 11-year epidemiological analysis of schistosomiasis in Ecuador:
Investigating a non-endemic, neglected, and challenging-to-identify parasitic disease

Vásconez-González J, Yeager J, Izquierdo-Condoy JS, Fernandez-Naranjo R, López M-B,
Gabriela Dávila M, Cordovez S, López-Cortés A and Ortiz-Prado E
Food and Waterborne Parasitology (PDF)

33. The evolution and ecology of multiple antipredator defenses
Kikuchi et al. (other than first/last, authors appear in alphabetical order) including: Yeager J
Journal of Evolutionary Biology (invited special issue) (PDF)

32. Outcomes of multifarious selection on the evolution of visual signals
Yeager J and Penacchio O
Proceedings of the Royal Society B (PDF)

31. Selection and admixture in a polytypic poison frog
Yeager J, Derryberry G, Blum M and Richards-Zawacki
The American Naturalist (PDF)


30.False contraindications for vaccinations result in sub-optimal vaccination coverage in Ecuador
Andrade-Guerrero F, Tapia A, Andrade V, Vásconez-González J, Andrade-Guerrero J, Noroña-Calvachi C,
Izquierdo-Condoy JS, Yeager J and Ortiz-Prado E
Vaccines (PDF)

29. Size-dependent colouration balances conspicuous aposematism and camouflage
Barnett JB, Yeager J, McEwen BL, Kinley I, Anderson HM & Guevara J
Journal of Evolutionary Biology (PDF) (invited special issue)

28. Remarkable new Lepanthes hidden in plain sight
Yeager J, Iturralde G, Ocopa L and Baquero LER
Phytotaxa (PDF)

27. Continuous variation in an aposematic pattern affects background contrast,
but is not associated with differences in microhabitat use

Yeager J and Barnett JB
Frontiers of Ecology and Evolution (PDF) (invited special Issue)

26. Age class and sex-specific ultraviolet signal enhancement in a sexually dimorphic gecko
Yeager J and Nieto R
Herpetology Notes (PDF)


25. Snake Antivenom production in Ecuador:
poor implementation, and an unplanned cessation leads to a call for a renaissance

Ortiz-Prado E, Yeager J, Andrade F, Schiavi-Guzman C, Abedrabbo-Figueroa P,
Terán E, Gómez-Barreno L, Simbaña-Rivera K and Izquierdo-Condoy JS
Toxicon (PDF)

24. The influence of ultraviolet reflectance differs between conspicuous aposematic signals in neotropical
butterflies and poison frogs

Yeager J and Barnett JB
Ecology and Evolution (PDF)

23. Environmental drivers of sexual dimorphism in a lizard with alternative mating strategies
Chelini MC, Brock K, Yeager J, Edwards DL
Journal of Evolutionary Biology (PDF)

22. Episodic correlations in behavioural lateralization differ between a poison frog and its mimic
Anderson HM, Fisher D, McEwen B, Yeager J, Pruitt JN, and Barnett JBB
Animal Behaviour (PDF)


21. Ultraviolet components offer minimal contrast enhancement to an aposematic signal
Yeager J and Barnett JB
Ecology and Evolution (PDF)

20. Orb-weaving spiders show a correlated syndrome of morphology and web structure in the wild
Fischer DN, Pruitt JN, and Yeager J
Biological Journal of the Linnean Society (PDF)

19. Imperfect transparency and camouflage in the glass frog
Barnett JB, Michalis C, Anderson H, McEwen BL, Yeager J, Pruitt JN, Scott-Samuel NE, Cuthill IC
Proceedings of the National Academy of Science (PDF)

18. A New Species of Pleurothallidinae (Orchidaceae) From the South-East of Ecuador
Baquero L, Fierro Minda A, Yeager J
Lankesteriana (PDF)

17. First record and notable range extension of neotropical Cochranella granulosa (Taylor, 1949) glass frog (Anura, Centrolenidae) found in Ecuador
Culebras J, Angiolani-Larrea FN, Tinajero-Romero J, Pellet C and Yeager J
Herpetology Notes (PDF)

16. Spatial problem solving in a poison frog
Yeager J and Barrio Amorós C
Herpetology Notes (PDF)

15. SARS-CoV-2, an evolutionary perspective of interaction with human ACE2 reveals undiscovered amino acids necessary for complex stability
Armijos-Jaramillo V, Yeager J, Muslin C, and Perez-Castillo Y
Evolutionary Applications (PDF)

14. Mediating ethical considerations in the conservation and sustainable biocommerce of the jewels of the rainforest
Yeager J, Baquero L, Zarling A
Journal of Nature Conservation (PDF)

13. Assessing the repeatability, robustness to disturbance, and parent-offspring colony resemblance of collective behavior
Fisher DN, Lichtenstein JLL, Costa-Pereira R, Yeager J, Pruitt JN
Journal of Evolutionary Biology (PDF)


12. Preferences for and use of light microhabitats differ among and within populations of a polytypic poison frog
Dugas M, Yeager J, Karkos A
Biological Journal of the Linnean Society (PDF)

11. Empowering Latina scientists
Ximena E. Bernal, Bibiana Rojas, María Alejandra Pinto-E, Ángela M. Mendoza- Henao, Adriana Herrera-Montes, Maria Isabel Herrera-Montes, Andrea del Pilar Cáceres Franco, and 254 signatories. (Full list of signatories, including J Yeager)
Science (PDF)

10. Successful multimodal amphibian defence in the neotropical frog Trachycephalus, including handling and recovery costs to would-be predators
Yeager J, Zarling A, Rodriguez C.
Herpetology Notes (PDF)


9. Warning signal brightness co-varies with toxicity but not testosterone or aggregate carotenoids in an exceptionally conspicuous poison frog
Crothers L, Saporito R, Yeager J Lynch K, Friesen C and Richards-Zawacki C.
Evolutionary Ecology 2016 (PDF)

8. Dendrobatidae and Bufo coniferus.
Yeager J
Herpetological Review 2013 (PDF)

7. Carotenoid supplementation enhances reproductive success in captive strawberry poison frogs
Dugas M, Yeager J, and Richards-Zawacki CL
Zoo Biology 2013 (PDF)

6. No evidence for differential survival or predation between sympatric color morphs of an aposematic poison frog
Richards-Zawacki CL, Yeager J, Bart H
Evolutionary Ecology 2013 (PDF)

5. Phenotypic and genetic divergence among poison frog populations in a mimetic radiation
Twomey E, Yeager J, Brown J, Morales V, Cummings M, and Summers K

4. Testing for Selection on Color and Pattern in a Mimetic Radiation
Yeager J, Brown JL, Morales V, Cummings M, and K Summers.
Current Zoology 2011 (PDF)

3. Bioluminescent aposematism in millipedes
Marek P, Papaj D, Yeager J, Molina S, and W Moore.
Current Biology 2011 (PDF)

2. The smell of success: choice of larval rearing sites by means of chemical cues in a Peruvian poison frog
Schulte L, Yeager J, Schulte R, Veith M, Werner P, Beck L, and S Lötters.
Animal Behaviour 2011 (PDF)

1. A new Technique for the production of large numbers of clay models for field studies of predation
Yeager J, Wooten C, and K Summers.
Herpetological Review 2011 (PDF)

PUBLICATIONS: In the pipeline


Predator learning and avoidance behaviors permit polymorphism in warning signals.
Yeager J, Donato E*, Dugas M and Richards-Zawacki C.
In Prep, full manuscript available upon request Impacts of fine scale microhabitat variation to phenotypic traits under selection in incipient speciation
Yeager J, McGraw K, Saporito R, Owens B, Giltz S and Richards-Zawacki C.
Pre-submission, full manuscript available upon request

How natural and sexual selection advances divergence through the speciation continuum
Edwards DL, Yeager J, Brock K, and Suswaram M.
In Prep full manuscript available upon request.

Admixture in hybrid zones drives origin and establishment of novel warning coloration in Heliconius butterflies.
Van Belleghem SM, Shaak SG, Yeager J, Benson C, Rosser N, Ray DA, Noonan B, Papa R, Mallet J, Brooks CP, McMillan WO and Counterman BA
In Prep


Twomey, EM, Brown JL, Yeager, J (2015). Excidobates captivus. Species account in the book: Andean Poison Frogs. Conservation International. In Press.

Yeager, J and Kahn, T (2015). Amereega silverstonei. Species account in the book: Andean Poison Frogs. Conservation International. In Press.

Yeager, J. Field Notes on Silverstone’s Poison Frog. 2007. Leaf Litter Magazine. Tree Walkers International. Vol. 1.1 pp 1-4.

Yeager, J. Epipedobates silverstonei: Rode Rana Peruana van de Cordillera Azul. September, 2006. Dendrobatidae Nederland. Vol 18. Pp 6-10. (Reprint of above article in Dutch, including magazine cover photo)

Yeager, J. The Oophaga pumilio of Escudo de Veraguas. Leaf Litter Magazine. Tree Walkers International. Vol. 3.1 pp 54-58.


Film Assistant (2004-current): British Broadcasting Corporation (BBC)
Life in Cold Blood (2008), The Journey of Life (2004) and The Amber Time Machine (2004), Seven Worlds (2020)

Film Assistant and Interviewed Scientist (2009): Animal Planet
Nick Baker's Weird Creatures

Scientific Consultation for the CITES Amphibian Guide (2006): Environment Canada


Estudio alienta a reanudar producción de antídoto contra mordeduras de serpientes en Ecuador:
No podemos seguir dependiendo de la importación, dice experto

(Study Encourages Resume Production of Snake Bite Antidote in Ecuador:
We Cannot Continue Depending on Importation, Expert Says)
El Universo (Ecuadorian national news)
, October 2021

These see-through frogs are full of surprises
National Geographic Magazine, July 2021

Scientists Discover the Reason Behind the Glass Frog’s Translucent Skin
Smithsonian Magazine, May 2020

Scientists see-through glass frogs’ translucent camouflage
Tech Explorist, May 2020

Study on Glass Frog and its Translucent Skin Reveals More than Just its Camouflage Technique
The Science Times, May 2020

Why glass frogs have see-through skin becomes clear in study
The Guardian, May 2020

Translucent glass frogs use a never before seen novel form of camouflage
ZME Science, May 2020

Researchers Reveal How Glass Frogs Use Their Translucent Skin As Camouflage
IFLScience, May 2020

El estudio científico ecuatoriano que le encontró el punto débil al coronavirus
(The Ecuadorian scientific study that found the weak point in the Coronavirus)
Plan V Magazine, April 2020.

Investigadores de la UDLA describen nuevos mecanismos para impedir la unión del SARS-CoV-2 a las células humanas (UDLA researchers describe new mechanisms to impede the union of SARS-CoV-2 to human cells)
Edición Médica Magazine, April 2020.

“From the Brink of Extinction, Some Frogs Defy the Odds”
Discover Blog, November 2014.

"For the love of the poison frog Ephrata native uses innovative approach to fund research trip to Panama"
The Ephrata Review, May 2012

"Tattoo You: A tattoo with your name on his body is just one of the incentives a scientist from Akron offers in a new online venture to encourage the public to fund his research into poison frogs in Panama."
Lancaster Online, April 2012

Millipede nocturnal aposematism, “Green Glow Helps Repel Nocturnal Predators”
Tulane New Wave, October 2011.

Rediscovery of Excidobates captivus, “Peru’s Tiny Gems.”
National Geographic Magazine
, April 2007.

Rediscovery of Atelopus varius (Costa Rica), “Young UD scientist finds frog thought to be extinct”
UD Daily (University of Delaware newsletter), July 2005.