Jake Weltzin assumed his position as Executive Director of the USA-NPN in August 2007. Jake’s interest in natural history developed as he grew up in Alaska and served as an exchange student in the Australian outback. He obtained his B.S. from Colorado State University, M.S. from Texas A&M University, and Ph.D. from the University of Arizona. Following a post-doctoral fellowship at the University of Notre Dame, Jake went to the University of Tennessee, where he served as Assistant and then Associate Professor.
Jake is interested in how the structure and function of plant communities and ecosystems might respond to global environmental change, including atmospheric chemistry, climate change, and biological invasions. His research spans temperate and tropical grasslands and savannas, temperate woodlands, deciduous forest, and sub-boreal peatlands. His recent experience as a science administrator at the National Science Foundation underscored the need to foster large-scale science initiatives such as the USA-NPN. As its first Executive Director, Jake’s vision for USA-NPN is “to develop a continental-scale instrument for integrative assessment of global change that simultaneously serves as an outreach and educational platform for citizens and educators.”
Ault, T.R., M.D. Schwartz, R. Zurita-Milla, J.F. Weltzin and J.L. Betancourt. 2015. Trends and natural variability of spring onset in the coterminous United States as evaluated by a new gridded dataset of spring indices. Journal of Climate.
McKinley, D.C., A.J. Miller-Rushing, H.L. Ballard, R.E. Bonney, H. Brown, D.M. Evans, R.A. French, J.K. Parrish, T.B. Phillips, S.F. Ryan, L.A. Shanley, J.L. Shirk, K.F. Stepenuck, J.F. Weltzin, A.Wiggins, O.D. Boyle, R.D. Briggs, S.F. Chapin III, D.A. Hewitt, P.W. Preuss, and M.A. Soukup. 2015. Can investing in citizen science improve natural resource management and environmental protection? Issues in Ecology.
Denny, E.G., K.L. Gerst, A.J. Miller-Rushing, G.L. Tierney, T.M. Crimmins, C.A.F. Enquist, P. Guertin, A.H. Rosemartin, M.D. Schwartz, K.A. Thomas and J.F. Weltzin. 2014. Standardized phenology monitoring methods to track plant and animal activity for science and resource management applications. International Journal of Biometeorology 58:591-601. DOI: 10.1007/s00484-014-0789-5
Rosemartin, A.H., T.M. Crimmins, C.A.F. Enquist, K.L. Gerst, J.L. Kellermann, E.E. Posthumus, E.G. Denny, P. Guertin, L. Marsh and J.F. Weltzin. 2013. Organizing phenological data resources to inform natural resource conservation. Biological Conservation 173:90-97. DOI: 10.1016/j.biocon.2013.07.003
Schwartz, M.D., J.L. Betancourt, and J.F. Weltzin. 2012. From Caprio’s Lilacs to the USA National Phenology Network. Frontiers in Ecology and the Environment 10:324-327. DOI: 10.1890/110281
Jones, K.B., H. Bogena, H. Vereecken, and J.F. Weltzin. 2010. Design and Importance of Multi-tiered Ecological Monitoring Networks. Pages 355-374 in F. Müller et al. (eds.), Long-Term Ecological Research, Springer Science+Business Media B.V. DOI: 10.1007/978-90-481-8782-9_25