Graduate Students

Andrea Brennan, PhD

Andrea Brennan, PhD

Principal Investigator – Dr. Jacobs

anbrenna@purdue.edu

Andrea’s research is focused on the restoration of threatened hardwood species.

Kalli Dunn, MS

Kalli Dunn, MS

Principal Investigator – Dr. Saunders

kfredri@purdue.edu

Kalli is studying an invasive population of Callery pear. She is specifically interested in understanding the ecological effects of invasion on the surrounding forest and dispersal mechanisms of Callery pear that may be contributing to invasive success.

Kyle Earnshaw, PhD

Kyle Earnshaw, PhD

Principal Investigator – Dr. Jacobs

kearnsha@purdue.edu

Kyle studies heteroblasty, plasticity, ecophysiology, restoration, and regeneration silviculture. He works currently with Acacia koa.

Graham Frank, MS

Graham Frank, MS

Principal Investigator – Dr. Jenkins

frankg@purdue.edu

Forestry mulching heads are a more efficient alternative to cut stump herbicide treatments for removing the invasive shrub Amur honeysuckle, but may have unforeseen impacts on community responses to invasive removal. I’m comparing the effectiveness of these two methods for preventing honeysuckle resprouting and the responses of both the understory plant community (including tree seedlings) and soil microbial communities to either treatment.

Bradley Graham – PhD

Bradley Graham – PhD

Principal Investigator – Dr. Jenkins

graham40@purdue.edu

The primary objectives of Brad’s dissertation research are to quantify the carbon storage capacity of Central Hardwood Region forests by assessing remaining old-growth stands across the region and to investigate long-term changes in carbon storage reservoirs through repeated measurements.

Skye Greenler – MS

Skye Greenler – MS

Principal Investigator – Drs. Saunders/Swihart

greenler@purdue.edu

Skye is studying how prescribed fire effects oak regeneration in an expanding group shelterwood silvicultural system in both harvested and unharvested areas. She is specifically investigating: how these treatments alter granivore predation and dispersal of acorns; the effects of granivore caching behavior on acorn survival during a burn; and quantifying oak seedling growth and regeneration.

James Jacobs – PhD

James Jacobs – PhD

Principal Investigator – Dr. Woeste

jamesjjacobs@fs.fed.us

As part of James’ dissertation research I study the interaction between the pathogen that causes butternut canker and its hosts. One of the main goals of our research is to develop an effective screening technique for early detection of candidate resistant trees that can be incorporated into a breeding program.

Nicholas LaBonte, PhD

Nicholas LaBonte, PhD

Principal Investigator – Dr. Woeste

nlabonte@purdue.edu

Nick studies tree genetics and genomics with the goal of informing hardwood breeding and management practices and improving breeding outcomes.  His dissertation research is centered on genomic aspects of chestnut blight resistance breeding and restoration of American chestnut.

Junhyung “Jun” Lee, PhD

Junhyung “Jun” Lee, PhD

Principal Investigator – Dr. Pijut

Lee1512@purdue.edu

Jun’s research is tree molecular biology: genetic transformation of black ash (Fraxinu nigra) for insect resistance and targeted genome editing.

Jenny Lesko, MS

Jenny Lesko, MS

Principal Investigator – Dr. Jacobs

leskoj@purdue.edu

Jenny is trying to understand the growth responses of two valuable hardwood species, American chestnut and northern red oak, when underplanted in a non-native pine plantation and subjected to alterations in pine canopy, herbaceous control, and fertilization.  Pine plantings are beginning to decline and present an opportunity to establish valuable hardwoods such as my target species before less desirable tree species become dominant.

David Mann, MS

Principal Investigator – Dr. Saunders

mann70@purdue.edu

David is a new graduate student this semester.

Image of M Mulroy

Meghan Mulroy, MS

Principal Investigator – Dr. Jenkins

mmulroy@purdue.edu

Meghan is looking at ecological effects of hemlock mortality from an exotic insect in the Smokies.

Weston Schempf, PhD

Weston Schempf, PhD

Principal Investigator – Dr. Jacobs

wschempf@purdue.edu

Wes is researching nursery stocktypes and vegetation management on mine reclamation success.

Shannon Stanis, MS

Shannon Stanis, MS

Principal Investigator – Dr. Saunders

sstanis@purdue.edu

They are studying the effect of prescribed fire on overstory trees.  Specifically, they are trying to quantify the economic effects of prescribed fire on timber products.  Hopefully, their research will be used to create best management practices for Indiana forests for Indiana private Woodland owners that desire healthy forests and high quality timber products.

Tyler Stewart, MS

Tyler Stewart, MS

Principal Investigator – Drs. Ginzel and Juzwik

Stewar23@purdue.edu

Tyler’s work mainly involves characterizing bark and ambrosia beetles associated with Thousand Cankers Disease (TCD) symptomatic black walnut in the eastern US. He is trying to understand what roles these beetles, possible vectors of TCD, play in this system. He also monitoring black walnut health within these areas as well.

Emily Thyroff, MS

Emily Thyroff, MS

Principal Investigator – Dr. Jacobs

ethyroff@purdue.edu

Emily’s research is focused on the ecophysiology of Quercus virginiana, live oak, in order to restore the hardwood species to maritime forests in the Southeastern United States.  Live oak is a dominant species of maritime forests, which are ecologically important as soil stabilizers, habitat for wildlife and recharging limited freshwater.

Mariam Valladares, MS

Mariam Valladares, MS

Principal Investigator – Dr. Jacobs

mvallada@purdue.edu

Mariam is a new graduate student who joined us Fall 2016.