Sebastian Successfully Defended his Thesis!

DHL M.S. student Sebastian Summo Elias successfully defended his thesis today with high praise from his committee and other attendees! Sebastian presented on his thesis research titled, “Distribution, Habitat Use, and Conservation Ecology of the Western Ribbonsnake (Thamnophis proximus) in New Mexico,” the culmination of two summers of fieldwork studying this species across the Pecos and Canadian river drainages. His work has helped increase our understanding of this species in New Mexico (the western extent of this species) and provided a lot of great data for land managers and future, follow-up studies. Having passed his defense, he is one step closer to graduation and wrapping things up at ENMU. Additionally, he was also recently awarded a fellowship from the University of Florida to enroll in a Ph.D. program in Fall 2026 studying invasive Burmese Pythons in the Everglades, and we’re all excited to see what all he accomplishes with in that position. Sebastian has been an influential member of the lab, and will always hold the distinction of being the first M.S. graduate from the DHL!

Congratulations again Sebastian, we’re all proud of you!

FUNDING: graduate student receives external funds!

DHL graduate student Braden DeWeerd was recently awarded funding through the Howard McCarley Student Research Award through the Southwestern Association of Naturalists! His proposed research, titled “Examining Ranavirus Infection and the Influence of Habitat Characteristics in Frogs of Eastern New Mexico,” involves examining RV prevalence and evaluating the influence of habitat characteristics that may increase viral infection loads and subsequently trigger mass mortality events. The results from this study support ongoing efforts to understand the threats to imperiled frogs along the Pecos River, such that pathogen information can be integrated into conservation and management frameworks.

Congratulations Braden!


 

PUBLICATION: student note published on Hemidactylus

A new student-led note was recently published in Herpetological Review 56(3). MS student Kevin Green published a series of distributional records of the non-native Hemidactylus aff. malcolmsmithi from Mississippi and Louisiana, including the furthest north documented population in the USA, in northern Louisiana. This species is rapidly expanding its range across the southern USA, and will likely become the dominant Hemidactylus species at introduced localities. Congrats to Kevin on another publication!

Green KE, Davis DR. 2025. Extending the known range of Hemidactylus aff. malcolmsmithi: new records from Louisiana and Mississippi, USA. Herpetological Review 56:282–283. [PDF]


 

DHL Graduate Students Present at ENMU SRCC!

DHL graduate students Sebastian Summo Elias, Braden DeWeerd, and Spencer Duffendack presented research posters at ENMU’s Student Research and Creativity Conference. Spencer (top) presented his thesis research on Western Ribbonsnakes (Thamnophis proximus), Braden (middle) presented on his proposed thesis research on SGCN Pecos River frogs, and Spencer (bottom) presented on his proposed thesis research on Rio Grande Cooter (Pseudemys gorzugi) physiology. Additionally, Spencer (pictured here) took home the 1st place prize for the graduate student poster proposal category! Sebastian will soon defend his thesis and both Braden and Spencer will start their first summer field season of data collection.

Congratulations on the successful presentations by all the students and to Spencer on his award!


 

Kevin Green presents at TAS 2026 Meeting!

DHL M.S. student Kevin Green recently presented at the Texas Academy of Science Annual Meeting held on the UT Tyler Campus in Tyler, Texas. Kevin presented a research poster titled, “Understanding the diet and distribution of newly documented Hemidactylus aff. malcolmsmithi from south Texas, USA.” This was research he began as an ENMU undergraduate, which focused on examining the distribution and diet of a recently established non-native gecko in Texas. Through this work, Kevin was able to document this species in five new counties in south Texas and recorded 13 orders of arthropods in the diet of over 150 individuals. He previously was awarded funding as an undergraduate from the Texas Academy of Science to conduct this research and he was able to return to present his results at the conference. We also were able to visit with DHL collaborator and Curator of Herpetology at The University of Texas at Austin Biodiversity Collections, Travis LaDuc (pictured with Kevin), which is always a fun time!

Congratulations to Kevin for a great poster presentation!


 

PUBLICATIONS: two new student notes published

Two new student-led notes were recently published in Herpetological Review 56(2). Both were natural history notes, documenting new diet items for two species. Undergraduate technician Caden Myers published an observation of an Ornate Box Turtle (Terrapene ornata) scavenging a road-killed North American Racer (Coluber constrictor) in Colorado. This observation follows a separate, recently published observation of a T. ornata consuming a road-killed Gophersnake (Pituophis catenifer) in eastern New Mexico. These observations suggest that T. ornata may scavenge road-killed snakes at a higher frequency than previously reported. The second note was written by M.S. student Sebastian Summo Elias and documented three new fish species in the diet of Western Ribbonsnakes (Thamnophis proximus) in New Mexico. Though the species is considered to primarily consume amphibians, several individual snakes regurgitated fish not previously recorded in their diet: Pecos Pupfish, Fathead Minnows, and Rio Grande Silvery Minnows. Congratulations to both students on their publications!

Summo Elias SD, Davis DR. 2025. Thamnophis proximus (western ribbonsnake). Diet. Herpetological Review 56:221–222. [PDF]

Myers CJ, Davis DR. 2025. Terrapene ornata (ornate box turtle). Diet. Herpetological Review 56:199. [PDF]


 

Sebastian featured in ENMU article!

An article was just published by the ENMU Office of Advancement and Public Relations featuring DHL M.S. student Sebastian Summo Elias. It provides a brief biography, introduces his thesis research at ENMU on Western Ribbonsnakes, and mentions some of his recent accomplishments. Congrats to Sebastian on being featured and for all his accomplishments while at ENMU. I’m excited to see what is next in store for him as he continues his academic career!

Check out the article here.


 

PUBLICATIONS: three new student notes published

Three new student-led notes were recently published in Herpetological Review 56(1). One was a Geographic Distribution Note reporting seven new occurrence records of six species of Michigan amphibians and reptiles, and was written by M.S. student Jake Kuschel. The other two were notes written by Ben Genter, an undergraduate researcher in the lab. Ben’s notes were: 1) a batch of distributional records of non-native amphibians and reptiles in the Florida, and 2) a Natural History Note describing a predation where at Mexican Treefrog (Smilisca baudinii) had consumed a Mediterranean Gecko (Hemidactylus turcicus) in south Texas. Congratulations to both students on their publications!

Genter BW, Davis DR. 2025. Smilisca baudinii (Mexican treefrog). Diet. Herpetological Review 56:62–63. [PDF]

Kuschel JE, Davis DR. 2025. Distributional records of herpetofauna from the Lower Peninsula of Michigan, USA. Herpetological Review 56:44–46. [PDF]

Genter BW, Davis DR. 2025. New county records of non-native herpetofauna in Florida, USA, from 2023 and 2024. Herpetological Review 56:40–43. [PDF]


 

FUNDING: Imperiled Frog Research

Without updated field data, the current conservation status of Blanchard’s Cricket Frogs (Acris blanchardi), Rio Grande Leopard Frogs (Rana berlandieri), and Plains Leopard Frogs (Rana blairi) remains unclear. All three anuran species are listed as a SGCN in the New Mexico Department of Game and Fish State Wildlife Action Plan (SWAP), emphasizing the urgent need for updated field data to inform management and conservation actions.  Anecdotal reports suggest that these species may have declined in recent years, particularly in areas affected by drought, groundwater depletion, and river management practices. The combined survey and management proposed here will generate contemporary occurrences data for these species and help address the threat and risk posed by invasive American Bullfrogs (Rana catesbeiana). The resulting data will guide effective habitat management, restoration, and species recovery efforts—directly supporting the goals of the New Mexico SWAP and the conservation of biodiversity in the Pecos River basin.

Grant Title: Assessing the Distribution and Threats of SGCN Frogs in Eastern New Mexico


CONFERENCE: New Mexico Research Symposium 2026

Graduate student Zoe Hutcherson recently attending the New Mexico Research Symposium (NMRS) held in Albuquerque, New Mexico on 15 November 2025. Zoe presented a poster titled, “Understanding the distribution of Rio Grande Cooters and examining spatial variation in their bacterial microbiota” at NMRS and was awarded the second place for her poster. This research is a part of Zoe’s thesis research at ENMU. This is the second time Zoe has won an award at NMRS! Way to go!

Congratulations again to Zoe!