View the entire article here!
Read more about Kris’ Research here!
We enjoyed having some visiting graduate students from Biological Sciences and Natural Resources learn some genetic techniques for their own future research! Thanks to our own Joe Gunn for helping out and providing samples & thanks Lauren Toivonen, Sabrina Michaels, and Emily Tracy-Smith for hanging out with us today!
It’s DNA Extraction Day in the Lab! We are so proud of all the work our undergrads have been completing in their research and their studies! Keep it up, you guys are doing great! Here is Kaitlin Sulkowski working on her Neosho Smallmouth Bass tissue samples, Madison Harris working on Bear Hair samples, and Molly Garrett on her Asian Elephant Fecal Samples!
Our graduate student Kris Budd was awarded the Support for Advanced Scientific Research grant today from the Eppley Foundation for Research for her and Dr. Eggert’s proposal entitled the Genetic and Genomic Diverstiy of the Asian Elephant, which will fund Kris’ research into developing methodology to extract high quality DNA from Dung and fecal samples!
Kris is extremely excited about progressing her research. Thank you to everyone who helped with this proposal!
Senior graduate student Jacob Burkhart has a new publication in Ecology and Evolution made available today!
Burkhart JJ, Peterman WE, Brocato ER, et al. The influence of breeding phenology on the genetic structure of four pond- breeding salamanders. Ecol Evol. 2017;00:1–12. https://doi.org/10.1002/ece3.3060
Understanding metapopulation dynamics requires knowledge about local population dynamics and movement in both space and time. Most genetic metapopulation studies use one or two study species across the same landscape to infer population dynamics; however, using multiple co- occurring species allows for testing of hypotheses related to different life history strategies. We used genetic data to study dispersal, as measured by gene flow, in three ambystomatid salamanders (Ambystoma annulatum, A. maculatum, and A. opacum) and the Central Newt (Notophthalmus viridescens louisianensis) on the same landscape in Missouri, USA. While all four salamander species are forest dependent organisms that require fishless ponds to reproduce, they differ in breeding phenology and spatial distribution on the landscape. We use these differences in life history and distribution to address the following questions: (1) Are there species- level differences in the observed patterns of genetic diversity and genetic structure? and (2) Is dispersal influenced by landscape resistance? We detected two genetic clusters in A. annulatum and A. opacum on our landscape; both species breed in the fall and larvae overwinter in ponds. In contrast, no structure was evident in A. maculatum and N. v. louisianensis, species that breed during the spring. Tests for isolation by distance were significant for the three ambystomatids but not for N. v. louisianensis. Landscape resistance also contributed to genetic differentiation for all four species. Our results suggest species- level differences in dispersal ability and breeding phenology are driving observed patterns of genetic differentiation. From an evolutionary standpoint, the observed differences in dispersal distances and genetic structure between fall breeding and spring breeding species may be a result of the trade- off between larval period length and size at metamorphosis which in turn may influence the long- term viability of the metapopulation. Thus, it is important to consider life history differences among closely related and ecologically similar species when making management decisions.
Are you looking to network with someone from the Eggert Lab? We are frequently in attendance at several conferences, but here are a few that are coming up!
Portland, Oregon, USA
June 23rd – June 27
Jake Burkhart will be in attendance
Our graduate student Kris Budd was award the Trans World Airlines scholarship today. This scholarship will help to fund Kris’ upcoming travel to her field sites in Southeast Asia.
“The Trans World Airlines scholarship fund was established to fund students who are performing research in areas which will impact environmental issues. Students [were] selected based on academic accomplishments as well as their research interests.” “Proceeds from the Trans World Airlines scholarship fund will be distributed to two law students ($7,000 each) selected by the law schools and to five additional students ($7,000 each) selected by a systemwide selection committee.” – Trans World Airlines Scholarship, University of Missouri System
Thank you to all those who took the time to look over her proposal and write letters of recommendation and thank you to the TWA Scholarship committee for their acceptance!
Our newest graduate student, Joe Gunn, presented his ongoing research on determining the taxonomic status of the Neosho small mouth bass (Micropterus dolomieu velox). Joe has been working very hard in preparation of this presentation and it was very apparent! MDC managers were in attendance as well as past and present collaborators.
Congratulations on an excellent presentation Joe!
Our senior lab member Jake Burkhart gave a presentation entitled “Genetic Diversity of the Ringed Salamander (Ambystoma annulatum)” to the University of Missouri’s Division of biological sciences specialized seminar known proudly as Ecolunch. Ecolunch is a seminar series dedicated to graduate students in the division of biological sciences specializing in an Ecology based field.
Jake’s talk described the genetic diversity found in the ringed salamander, an endemic species to missouri and of conservation concern. His talk went great and had great interaction and questions at the end from the audience. Congratulations Jake!