My research focuses on plant ecology with particular interest in the issues of species
conservation and restoration, biological invasions, and plant responses to global
change. Currently, my students and I are conducting several research projects. We
are engaged in ongoing investigations of the growth and reproductive responses of
rare and federally threatened large flower skullcap (Scutellaria montana) to disturbances including fire, forest thinning, and herbivory. We also are examining
the light responses of hybrid chestnuts to determine how this variable may be inherited
and how it could impact the success of local American chestnut (Castanea dentata) restoration efforts. Additionally, we recently began a large-scale multi-year survey
of numerous invasive plant species in Tennessee Army National Guard training sites
to help increase understanding of the associations between human disturbance and plant
invasions and to assess the potential impact that non-native invasive plants may have
on rare native plant species in these sites. We also are beginning a new research
project designed to elucidate how abiotic factors might influence the reproductive
success of locally rare white fringeless orchid (Platanthera integrilabia) toward aiding conservation of this species.
I am currently seeking undergraduate and graduate students interested in any of the topics and projects described above, as well as related interests. Students should contact me at email@example.com.
Boyd JN. Invasive species survey and rare species impact assessment in the Tennessee Army National Guard Volunteer Training Sites. Tennessee Army National Guard. January 1, 2013–December 31, 2014. $89,000.
Boyd JN. How do light and soil moisture availability affect Platanthera integrilabia growth and reproduction? U.S. Fish and Wildlife Service. June 1, 2013–December 31, 2014. $7,398
Boyd JN, Shaw J. Impacts of large animal herbivory on Scutellaria montana in the Tennessee Army National Guard Volunteer Training Site. Tennessee Army National Guard. January 1, 2011–December 31, 2012. $63,455.
2009-2011. The American Chestnut Foundation. Comparing the shade tolerance of American
chestnut, Chinese chestnut, and their hybrids. [with J.H. Craddock, co-PI]
Kile HM*, Shaw J, Boyd JN (2013) Response of federally threatened Scutellaria montana (large-flowered skullcap) to pre-transplantation burning and canopy thinning. Southeastern Naturalist 12: 99-120.
Kile HM*, Shaw J, Boyd JN (2011) Relocation success of federally threatened Scutellaria montana (Lamiaceae, large-flowered skullcap) from a proposed highway corridor. Journal of the Tennessee Academy of Science 86: 101–104.
Boyd JN, Xu CY, Griffin KL (2009) Cost-effectiveness of leaf energy and resource investment of invasive Berberis thunbergii (Japanese barberry) and co-occurring native shrubs. Canadian Journal of Forest Research 39: 2109-2118.
Boyd, J. and J. Shaw. 2009 Plant Species of Interest Report 2009: SR2 Bridge over
Nickajack Reservoir, Marion County, TN Prepared for the Tennessee Department of Transportation.
Shaw, J. and J. Boyd. 2009. Large Flowered Skullcap (Scutellaria montana, Lamiaceae) Monitoring 2009 at Volunteer Training Site, Catoosa Co., Georgia. Prepared for the Tennessee Army National Guard.
Shaw, J. and J. Boyd. 2009. Hypericum adpressum Evaluation Report: SR2 Bridge over Nickajack Reservoir, Marion County, TN. Prepared for the Tennessee Department of Transportation.
Boyd, J.N, Xu, C.Y., and K.L. Griffin. 2009. Cost-effectiveness of leaf energy and
resource investment of invasiveBerberis thunbergii (Japanese barberry) and co-occurring native shrubs. Canadian Journal of Forest Research
Nagel, J.M., Wang, X.Z., Lewis, J.D., Fung, H.A., Tissue, D.T., and K.L. Griffin. 2005. Atmospheric CO2enrichment alters energy-use efficiency and patterns of energy investment and allocation in Xanthium strumarium. New Phytologist 166: 513-523.
Nagel, J.M. and K.L. Griffin. 2004. Can gas-exchange characteristics help explain the invasive success of Lythrum salicaria? Biological Invasions 6: 101-111.
Nagel, J.M., Huxman, T.E., Griffin, K.L., and S.D. Smith. 2004. CO2 enrichment reduces the energetic cost of biomass construction in an invasive desert grass. Ecology 85: 100-106.
* - Student author