B.E.T.R. Lab News
Spring Summer, and Fall 2013
Unfortunately, lead BETR Lab student resarcher, Kayla Pendergrass, graduated in the Spring of 2013. While we were sad to see Kayla graduate, we were proud that she was accepted to continue her research in dendrochronology at the University of Southern Mississippi Dendron Lab.
During the summer, members of the BETR Lab were authors/co-authors of two presentations at the Second American Dendrochronology Conference in Tucson, AZ.
Pendergrass, K.M., Galicki, S., and Gentry, C.M. (2013) Growth response of Douglas-fir to coseismic subsidence in the Red Canyon fault block, Hebgen Lake, Montana. Second American Dendrochronology Conference, Tucson, AZ.
Pettit, J. L., Stan, A.B., Yocom, L.L., Gentry, C.M., Barrett, K., Bragg, T.B., Owens, M.C., and Pendergrass, K.M. (2013) Stand Dynamics in a Small Volcanic Depression in the Valles Caldera National Preserve, New Mexico. Second American Dendrochronology Conference, Tucson, AZ.
Later that summer we attended the North American Dendroecological Fieldweek at the Black Rock Forest near Cornwall, NY. During this summer research, Kayla and the Dendroclimatology Group sampled and dated the oldest known Pinus rigida. This research was preformed in the Minnewaska State Park.
The fall semester has been quiet in the BETR. Dr. Gentry is co-author on a submitted abstract accepted to be presented at the 2014 Association of American Geographers annual meeting in Tampa, FL.
Carlstrom, J., Gentry, C.M., Martin-Benito, D., Hallmann, J., Porter, G., Ray, D., Thompson, N. (2014) A dendroecological analysis of disturbances along a transect representing a species/moisture gradient in central New York. Annual Meeting, Association of American Geographers, Tampa, FL.
Additionally, we are coordinating the 2014 NADEF at the A.L. Mickelson Field Station in WY and preparing for sampling in Montana to expand on the Red Canyon research.
Spring, Summer, and Fall 2012
In the spring semester, Dr. Gentry accepted a postion as Director of the Office of Undergraduate Research at APSU. While this will take away from his ability to be in the lab, he will have a much broader reach in encouraging students at APSU to become engaged in research opportunities.
Summertime was busy in the BETR Lab! Dr. Gentry and student researcher Kayla Pendergrass attend the North American Dendroecological Fieldweek at the Valles Caldera National Preserve in New Mexico. Kayla was funded by a NSF Scholarship to attend the fieldweek. In addition to this award, Kayal was the recipient of a Summer Undergraduate Research Fellowship from APSU to continue her work at Mount Rushmore. The results of this reesarch were presented at the Southeastern Division of the Association of American Geographers annual meeting in Asheville, NC:
Pendergrass, K., and Gentry, C.M. (2012) Growth Response in Ponderosa Pine
Stands at Mount Rushmore National Monument, South Dakota. Annual Meeting, the Southeastern Division of the Association of American Geographers, Asheville, NC.
During the fall semester, Dr. Gentry and Kayla Pendergrass attended a NSF Workshop titled "Science: Becoming The Messenger" in Knoxville, TN.
Spring, Summer, and Fall 2011
This has been a very productive year for the BETR Lab! Both Kyle Gainous and Katie Stevenson graduated and the spring semester! Congratulations, thanks for all of your hard work in the lab, and good luck with your future endeavors.
Also during the spring semester Dr. Christopher Gentry and colleagues were awarded a $275,000 National Science Foundation grant to support the logistical costs of the North American Dendroecological Fieldweek!
During the last year the BETR Lab had five presentations at local and national conferences:
Pendergrass, K., Gentry, C.M., Ellison, W., Ethridge, E., and Kelly, J. (2011) Examination of stand structure on an elevation gradient in a subalpine forest in South Central Colorado. Annual Meeting, the Southeastern Division of the Association of American Geographers, Savannah, GA.
Sipe, J., Gentry, C.M., Kapke, J., Pierce, P., and Smith, C. (2011) Analysis of Meteorological Triggers of Mountain-Valley Breezes in the Sangre de Cristo Mountains of Colorado. Annual Meeting, the Southeastern Division of the Association of American Geographers, Savannah, GA.
Whitley, J., Stoner, S., Waegerle, M., and Gentry, C.M. (2011) A Stitch in Time: National Civil War Quilt Trail. Annual Meeting, the Southeastern Division of the Association of American Geographers, Savannah, GA.
Gentry, C.M. and Brown, P.M. (2011) Quantifying the growth response of Pinus ponderosa in treated and untreated stands, Mount Rushmore National Monument, South Dakota, USA. Annual Meeting, The Association of American Geographers, Seattle, WA.
Dugan, A., Brown, P.M., Gentry, C.M., Cassell, B., Harris, J., King, C., Marschall, J., Salicrup, D., Smith, G., Waldron, J., (2011) Fire and recruitment history of a Jeffery pine stand in the eastern Sierra Nevada, California. Annual Meeting, The Association of American Geographers, Seattle, WA.
Sahara, A., Gentry, C.M., van de Gevel, S.L., Birch, S., Cousins, S., Dech, D., Guiterman, C., Harley, G., Hook, B., Martinson, E., Morrissey, R., Reinikainen, M., Ryu, S., Waldron, J. (2011) Forest Stand Dynamics and Disturbance History in a Mixed Hardwood Forest, Simes Tract, Harvard Forest, Massachusetts. Annual Meeting, The Association of American Geographers, Seattle, WA.
Pendergrass, K., Zahn, L., and Gentry, C.M. (2011) Using tree-ring analysis to examine the influence of climate on the growth of ponderosa pine stands at the Mount Rushmore National Monument, South Dakota. 6th Annual Research and Creativity Forum, Austin Peay State University, Clarksville, TN
2010 Summer Research
2010 proved to be a busy summer for members of the BETR Lab. Kyle Gainous spent the summer working as a Biological Science Tech with the USGS Forest and Rangeland Ecosystem Science Center and stations Northern Nevada. This research examined aspen dynamics in relation to aspen-associated bird communities.
During the month of July, Dr. Christopher Gentry travelled with four APSU students to Mount Rushmore National Monument to begin sampling for a project which will quantify the effect thinning has had onPinus ponderosa stands near the monument. More information can be found on the project page: MORU
For the second consecutive year Dr. Gentry lead a group at the North American Dendroecological
Fieldweek. Held at the Crooked Creek Research Station in the White Mountains of California,
five groups spent a week in August examining research topics using dendrochronological
techniques. Dr. Gentry and Dr. Peter Brown (Rocky Mountain Tree-ring Research) co-led
the fire history group that that reconstructed the historic range of variability
of fire within a site in the Inyo National Forest. You can learn more about the NADEF
from the following website:
North American Dendroecological Fieldweek
June 1, 2009: 19th Annual NADEF, Amherst, MA
Four Austin Peay Geosciences students attended the 19th Annual North American Dendroecological
Fieldweek hosted by Hampshire College in Amherst, MA. The NADEF was held from June
4-11 and is a intensive learning experience in dendrochronological techniques and
applications. You can learn more about the NADEF from the following website:
North American Dendroecological Fieldweek
May 24, 2009: Berry College, Rome, GA
The B.E.T.R Lab joined researchers from Virginia Tech at Berry College in Rome, GA. The goal of this work is to examine composition, structure, and dynamics of mountain and piedmont longleaf pine communities in the southeastern US. Check out some of the photos in the photo gallery...
April 25, 2009: Baggett Cemetery, Palmyra, TN
The Department of Geosciences is assisting the Baggett Family in above ground and subsurface mapping of a family plot in central Tennessee. Using ground penetrating radar, surveying equipment, digital cameras, and handheld GPS units, members of the B.E.T.R. Lab and the department will search for unmarked gravesites and create a web-based map for the family to maintain for future generations. Recently the B.E.T.R. Lab was contacted by another family looking for similar work to be preformed on their own family plot.
November 11, 2008: Warner Parks, Nashville, TN
Members of the B.E.T.R Lab and the Center of Excellence for Field Biology travelled to a tract of land purchased by H.G. Hill near the Warner Parks in Nashville, TN. Our lab was contacted to do some preliminary work to determine the relative age of the trees within the H.G. Hill tract. It is thought that this might be the only tract of "old growth" forest within a city park in the country.
Check out the report and video by Nashville's News Channel 5...