Interests in spatial aspects of ecosystems and the application of computing and simulation techniques to enhance understanding of ecosystem behavior and conservation. Main research projects include: Developing a spatially explicit simulation of plant community structure in beaver meadows, including hydrological, nutrient and light-competition effects; and Developing a model for landscape management based on natural variability as a measure of sustainable practice.
Background
PhD Biological Systems Simulation, Lincoln University, New Zealand, 1995
B.S. Microbiology, Canterbury University, New Zealand, 1990
Current Publications
Johnston CA, Brown TN, Hollenhorst TP, Wolter PT, Danz NP, Niemi GJ. 2009. GIS in support of ecological indicator development. Manual of Geographic Information Systems (56):1095-1113.
Niemi GJ, Brady VJ, Brown TN, Ciborowski JJH, Danz NP, Ghioca DM, Hanowski JM, Hollenhorst TP, Howe RW, Johnson LB, Johnston CA, Reavie ED. 2009. Development of ecological indicators for the U.S. Great Lakes coastal region – a summary of applications in Lake Huron. 12(1):1-13.
Kireta AR, Reavie ED, Danz NP, Axler RP, Sgro GV, Kingston JC, Brown TN, Hollenhorst TP. 2007. Coastal geomorphic and lake variability in the Laurentian Great Lakes: implications for a diatom-based monitoring tool. Journal of Great Lakes Research 33(3):136-153.
Johnston CA, Bedford B, Bourdaghs MD, Brown TN, Frieswyk CB, Tulbure M, Vaccaro L, Zedler JB. 2007. Plant species indicators of physical environment in Great Lakes coastal wetlands. Journal of Great Lakes Research Coast Indicators Special Issue
Hollenhorst TP, Brown TN, Johnson LB, Ciborowski JJH, Host GE. 2007. Methods for generating multi-scale watershed delineations for indicator development in Great Lake coastal ecosystems. Journal of Great Lakes Research 33(3):13-26.
Brazner JC, Danz NP, Trebitz AS, Niemi GJ, Regal RR, Hollenhorst TP, Host GE, Reavie ED, Brown TN, Hanowski JM, Johnston CA, Howe RW, Ciborowski JJH. 2007. Responsiveness of Great Lakes wetland indicators to human disturbances at multiple spatial scales: a multi-assemblage assessment. Journal of Great Lakes Research 33(3):42-66.
