KBS LTER Dissertations

Theses and dissertations associated with KBS LTER. Click on the pdf link to get open access versions or to sign in (free and immediate) to get others. For published papers of dissertation chapters click here

2023

Bolin, L. G. 2023. The cryptic role of microbes in plant ecology and evolution. Dissertation, Indiana University, Bloomington IN.

Ryskamp, M. 2023. Wild virus impacts of fitness of Panicum virgatum (switchgrass) and the genetic architecture of disease expression. Dissertation, Michigan State University, East Lansing MI.

Sciusco, P. 2023. Global warming impacts of landscape mosaic in Southwestern Michigan: A cross-scale assessment of climate benefit potentials of albedo and net ecosystem exchange. Dissertation, Michigan State University, East Lansing MI.

Singh, S. 2023. Change in soil characteristics after incorporating cover crops in the crop rotations. Thesis, Michigan State University, East Lansing MI.

Ulbrich, T. C. 2023. Mechanisms to management: Harnessing plant-microbial interactions and soil health for sustainable agriculture. Dissertation, Michigan State University, East Lansing MI.

Wan, L. 2023. Quantifying nutrient transport pathways using spatially explicit modeling and remote sensing. Dissertation, Michigan State University, East Lansing MI.

Wang, S. 2023. Spatio-temporal variability of bioenergy feedstock biomass yield and quality at field scale in the Great Lakes Region USA. Dissertation, Michigan State University, East Lansing MI.

Zahorec, A. 2023. Microarthropod-microbe interactions on soil carbon dynamics in bioenergy cropping systems. Dissertation, Michigan State University, East Lansing MI.

2022

Baule, W. J. 2022. Climatic variability and change in the Midwestern United States: Implications for nitrogen leaching in agricultural systems. Dissertation, Michigan State University, East Lansing MI.

Bressler, A. 2022. A social-ecological analysis of ecological nutrient management using cover crops in the U.S. Midwest. Dissertation, University of Michigan, Ann Arbor MI.

Curtright, A. J. 2022. Carbon-mediated ecological and physiological controls on nitrogen cycling across agricultural landscapes. Dissertation, Michigan State University, East Lansing MI.

Kemmerling, L. R. 2022. Diversifying agricultural landscapes for biodiversity and ecosystem services. Dissertation, Michigan State University, East Lansing MI.

Lei, C. 2022. The analysis of albedo on bioenergy crops: Assessment for climate and global warming impact. Dissertation, Michigan State University, East Lansing MI.

Li, Y. 2022. Tracking flows across a metacoupled planet for sustainability. Dissertation, Michigan State University, East Lansing MI.

Longley, R. 2022. Impact of agricultural management and microbial inoculation on soybean (Glycine max) and its associated microbiome. Dissertation, Michigan State University, East Lansing MI.

2021

Kim, K. 2021. Change of soil micro-environments during plant decomposition and its effect on carbon and nitrogen dynamics. Dissertation, Michigan State University, East Lansing MI.

Kittredge, H. 2021. Consequences of horizontal gene transfer in soil bacteria. Dissertation, Michigan State University, East Lansing, MI.

Liang, B. W. 2021. The effect of freeze-thaw cycles on microbial resilience along a crop biodiversity gradient. Thesis, Michigan State University, East Lansing MI.

Pan, D. 2021. Improving observations of greenhouse gases, reactive nitrogen, and particulate matter for effective policymaking. Dissertation, Princeton University, Princeton, NJ.

Plumhoff, M. 2021. Management legacy effects on cover crop productivity and potential to reduce nutrient leaching from farms. Thesis, University of Michigan, Ann Arbor MI.

Ramalingam, V. 2021. Biodegradation and molecular analysis of 1,4-dioxane and other organic contaminants in soil using metagenomic tools. Dissertation, Michigan State University, East Lansing MI.

Tu, X. 2021. Soil health indicators for sustainable agriculture in the United States and Malawi. Dissertation, Michigan State University, East Lansing MI.

2020

Basyal, B. 2020. Aboveground-belowground interactions: roles of soil biotic and abiotic factors on switchgrass's (Panicum virgatum) growth, defense against herbivory and cell wall chemistry. Dissertation, University of Louisville, Louisville, KY.

Egboluche, N. P. 2020. Cover crops and cover crop residues regulate rates of soil microbial decomposition and plant available nitrogen. Thesis, Michigan State University, East Lansing, MI.

Glanville, K. 2020. Impacts of changing precipitation on nitrogen cycling in different landscape positions and cropping systems. Dissertation, Michigan State University, East Lansing, MI.

Kuhl, A. S. 2020. Development and application of a coupled hydrogeophysical inversion model for estimating soil and root properties. Dissertation, Michigan State University, East Lansing, MI.

Lee-Cullin, J. A. 2020. From land to stream: An assessment of watershed-scale biogeochemical interactions at the stream-groundwater interface. Dissertation, Michigan State University, East Lansing, MI.

Liu, L. 2020. Assessing and modeling crop yield and soil carbon in smallholder fields in Africa and Central America. Dissertation, Michigan State University, East Lansing, MI.

Luther, Z. 2020. Farmer willingness to plant prairie strips into crop fields: Evidence from the Eastern Corn Belt. M.S. Plan B Research Paper, Michigan State University, East Lansing MI.

Rasu, E. 2020. Innovative approaches to gauge resilience of managed rainfed agricultural systems. Dissertation, Michigan State University, East Lansing, MI.

Smercina, D. N. 2020. Environmental and biological controls on free-living nitrogen fixation. Dissertation, Michigan State University, East Lansing, MI.

Van Deynze, B. 2020. To spray or not to spray: The economics of weed and insect management under evolving ecological conditions. Dissertation, Michigan State University, East Lansing MI.

Zettlemoyer, M. A. 2020. Phenological and demographic plant responses to global change. Dissertation, Michigan State University, East Lansing, MI.

2019

Ali, S. 2019. Impact of predation risk on the behavior and physiology of insects in agricultural systems. Dissertation, Michigan State University, East Lansing MI.

Griffin, S. R. 2019. Restoring wild bees across fragmented landscapes. Dissertation, Michigan State University, East Lansing, MI.

Jha, P. K. 2019. Agronomic management of corn using seasonal climate predictions, remote sensing and crop simulation models. Dissertation, Michigan State University, East Lansing, MI.

Liang, D. 2019. Microbial sources of nitrous oxide emissions from diverse cropping systems. Dissertation, Michigan State University, East Lansing MI.

Myers, A. T. 2019. The interacting influences of habitat context and predators on monarch butterfly (Danaus plexippus L.) oviposition and survival in agricultural landscapes. Dissertation, Michigan State University, East Lansing, MI.

Quigley, M. Y. 2019. Contribution of soil pores to the processing and protection of soil carbon at micro-scale. Dissertation, Michigan State University, East Lansing, MI.

Thompson, B. E. 2019. Microbial communities regulate nitrogen use efficiency by balancing tradeoff between resource acquisition and growth rate. Thesis, University of New Hampshire, Durham, NH.

Valdez, Z. 2019. The quantification and characterization of soil carbon in switchgrass plots under fertilization and harvesting practices. Dissertation, Baylor University, Waco TX.

2018

Cheng, H. 2018. Using gas-producing enzymes as outputs for synthetic genetic circuits to enable bacterial reporting within complex environmental materials. Dissertation, Rice University, Houston, Texas.

Denny, R. C. 2018. A cross-scale examination of how knowledge and the physical environment influence the use of best management practices in US commodity agriculture. Dissertation, Michigan State University, East Lansing, Michigan.

Gdanetz MacCready, K. 2018. Crop microbiomes and the search for effective biocontrol of Fusarium graminearum on wheat. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Houser, M. K. 2018. Nitrogen fertilizer management in the context of the midwestern corn agro-ecological system: An environmental sociological analysis. Dissertation, Michigan State University, East Lansing, Michigan.

Kincaid, D. W. 2018. Revealing the biogeochemistry and hydrodynamic exchange processes of flocculent sediments in shallow freshwaters. Dissertation, Michigan State University, East Lansing, Michigan.

Magnoli, S. 2018. The role of rapid adaptation in plant population establishment. Dissertation, Michigan State University, East Lansing, Michigan.

McGill, B. M. 2018. Climate change - groundwater interactions in a Midwestern US agricultural system and a peri-urban system in Botswana. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Thelusmond, J. 2018. Biodegradation of emergin contaminants in agricultural soils and thier impact on soil microbial communities. Dissertation, Michigan State University, East Lansing, MI.

2017

Brewer, P. E. 2017. Soil heterogeneity in agricultural and natural ecosystems: Relationships between anaerobic activity, organic matter, nutrients, and greenhouse gases. Dissertation, Colorado State University, Fort Collins, Colorado.

Desotelle, M. D. 2017. The impacts of algal subsidies from a run-of-river reservoir on downstream food webs and nutrient availability, and the implications of a diluted bitumen spill on the Kalamazoo River. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Hess, L. 2017. Climate change and agriculture: The effects of extreme rainfall patterns on nitrogen leaching from field crop systems in the U.S. Midwest. Dissertation, Stanford University, Stanford, California.

Kinnetz, E. R. 2017. Intraspecific differences in belowground associations and seedling root morphology for the biofuel crop, Panicum virgatum. Thesis, University of Louisville, Louisville, KY.

O'Neill, B. 2017. Increasing rotational complexity in row crops restructures microbial communities and soil nutrient dynamics. Dissertation, Michigan State University, East Lansing, Michigan.

Ruhala, S. S. 2017. Understanding the role of the stream-groundwater interface in dissolved organic carbon cycling in a third-order, lowland river network. Thesis, Michigan State University, East Lansing, Michigan.

Smith, L. C. 2017. Nitrogen conservation in perennial grasses managed for bioenergy production. Dissertation, University of Wisconsin-Madison, Madison WI.

Su, Y. 2017. The carbon sequestration and soil respiration after land use conversion in biofuel cropping ecosystems. Dissertation, Michigan State University, East Lansing, Michigan.

Wang, S. 2017. Biomass production potential, theoretical ethanol yield, environmental sustainability of Miscanthus x giganteus and nitrogen fertilizer effect on quantity and quality in five lignocellulosic biomass crops in north-central U.S. Thesis, Michigan State University, East Lansing MI.

Welshofer, K. B. 2017. Short-term effects of passive warming on two invaded plant communtieis using a novel open-top chamber design. Thesis, Michigan State University, East Lansing, MI.

2016

Beehler, J. 2016. The effect of cover crop on soil carbon and soil water retention in topographically diverse terrain. Thesis, Michigan State University, East Lansing, Michigan.

Duncan, D. S. 2016. Linking soil microbiology and environmental conditions to variability in nitrous oxide production in bioenergy cropping systems. Dissertation, University of Wisconsin- Madison, Madison, Wisconsin.

Garoutte, A. 2016. Identifying the activities of rhizosphere microbial communities using metatranscriptomics. Dissertation, Michigan State University, East Lansing, Michigan.

Guo, J. 2016. Rhizosphere metagenomics of three biofuel crops. Dissertation, Michigan State University, East Lansing, Michigan.

Mpeketula, P. M. 2016. Soil organic carbon dynamics and mycorrhizal fungal diversity in contrasting agroecosystems. Dissertation, Michigan State University, East Lansing, Michigan.

2015

Gordon, B. R. 2015. The influence of long-term nitrogen fertilization on symbiosis and metabolism in the legume-rhizobium mutualsim. Thesis, University of Illinois at Urban-Champaign, Urbana Illinois.

Gottshall, C. B. 2015. Effects of different agricultural management systems on arbuscular mycorrhizal fungal diversity, community structure, and ecosystem services. Dissertation, University of Louisville, Louisville, Kentucky.

Kallenbach, C. M. 2015. Microbial influences on decomposition and soil organic matter formation in agricultural soils. Dissertation, University of New Hampshire, Durham, New Hampshire.

Klinger, C. 2015. Ecological genomics of mutualism decline in nitrogen-fixing bacteria. Thesis, University of Illinois and Urban-Champaign, Urbana, Illinois.

Ladoni, M. 2015. Interactive effects of cover crops and topography on soil organic carbon and mineral nitrogen. Dissertation, Michigan State University, East Lansing, Michigan.

Liu, L. 2015. Modeling switchgrass aboveground net primary productivity and evapotranspiration across Michigan. Thesis, Michigan State University, East Lansing, MI.

Palm-Forster, L. H. 2015. Cost-effective conservation programs to enhance ecosystem services in agricultural landscapes. Dissertation, Michigan State University, East Lansing, Michigan.

Roller, B. R. 2015. Life histories of bacteria: Genomic foundations and ecological implications. Dissertation, Michigan State University, East Lansing, Michigan.

Sprunger, C. D. 2015. Root production and soil carbon accumulation in annual, perennial, and diverse cropping systems. Dissertation, Michigan State University, East Lansing, Michigan.

Szymanski, L. 2015. Soil microbial respiration and carbon turnover under perennial and annual biofuel crops in two agricultural soils. Thesis, University of Wisconsin- Madison, Madison, Wisconsin.

Wright, C. A. 2015. Dynamics of agricultural soil fungi: Impact of agricultural land management on the soil microbial biomass, fungal species richness, and ligninolytic gene structure. Disseration, Michigan State University, East Lansing, Michigan.

2014

Munoz-Robayo, J. D. 2014. The role of topography and cover crops in Michigan agricultural ecosystems and its potential effect under future climate scenarios. Dissertation, Michigan State University, East Lansing, Michigan.

Ruan, L. 2014. Impacts of biofuel crops on greenhouse gas emissions from agricultural ecosystems. Dissertation, Michigan State University, East Lansing, Michigan.

Surapur, S. 2014. Effects of long-term cereal rye winter cover crop on soil quality, soil N availability and yields across a nitrogen gradient in a rainfed Michigan corn system under conventional tillage. Thesis, Michigan State University, East Lansing, Michigan.

2013

Kane, D. 2013. Spatial and temporal nitrogen synchrony in ridge tillage systems as compared to chisel plow systems. Thesis, Michigan State University, East Lansing, Michigan, USA.

Shcherbak, I. 2013. Production and movement of N2O in the full soil profile. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Woltz, J. M. 2013. Relationships between landscape structure, coccinellid activity density, and aphid suppression in soybean. Dissertation, Michigan State University, East Lansing, MI USA.

2012

Jaikumar, N. 2012. Perennial cereal crops for the cold temperate zone: agronomy, physiology, sink regulation and disease resistance. Ph.D. Dissertation, Michigan State University, East Lansing, MI USA.

Kinsman-Costello, L. 2012. Effects of water level fluctuations on phosphorus, iron, sulfur, and nitrogen cycling in shallow freshwater ecosystems. Dissertation, Michigan State University, East Lansing, MI USA.

Ollenburger, M. 2012. Modeling integrated soil fertility management options in Malawi under variable soil and climate conditions. Thesis, Michigan State University, East Lansing, Michigan, USA.

Tinsley, S. 2012. An evaluation of perennial wheat and intermediate wheatgrass as dual-purpose, forage-grain crops under organic management. Thesis, Michigan State University, East Lansing, MI USA.

Towery, K. 2012. Increasing methane consumption in agricultural soils by use of bacterial inocula. Thesis, Michigan State University, East Lansing, MI USA.

Wang, W. 2012. Investigating soil aggregate pore structures and their relationship to bacteria spatial distribution using x-ray computed microtomography. Dissertation, Michigan State University, East Lansing, MI USA.

Weir, A. 2012. Evaluating the economic feasibility of environmentally beneficial agricultural technologies compared to conventional technologies. Thesis, Michigan State University, East Lansing, Michigan, USA.

Wong, J. R. 2012. Impacts of agricultural disturbance on communities of selected soil fungi (Agaricomycetes). Thesis, University of Western Ontario, London, Ontario, Canada.

2011

Deal, M. 2011. Net primary production in three bioenergy crop systems following land conversion. Thesis, University of Toledo, Toledo, Ohio, USA.

Lee, Z. 2011. Bacterial growth efficiency: Assessment in terrestrial ecosystems. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Ma, S. 2011. Supply and demand for ecosystem services from cropland in Michigan. Ph.D. Dissertation, Michigan State University, East Lansing, MI USA.

Robinson, T. 2011. Impacts of precipitation variability on plant communities. Dissertation, Michigan State University, East Lansing, MI, USA.

Salam, D. E. 2011. Nitrogen fertilization effects on litter decomposition dynamics and soil carbon in agricultural system. Thesis, Michigan State University, East Lansing, Michigan, USA.

Schrotenboer, A. C. 2011. Prairie grasses for biofuels and ecological restoration: Modifications to native species and their place in human-altered landscapes. Dissertation, Michigan State University, East Lansing, MI, USA.

2010

Chen, H. 2010. Ecosystem services from low input cropping systems and the public’s willingness to pay for them. Thesis, Michigan State University, East Lansing, MI, USA.

Ma, S. 2010. Hedonic valuation of ecosystem services using agricultural land prices. Thesis, Michigan State University, East Lansing, MI, USA.

Wilke, B. 2010. Challenges for developing sustainable nitrogen sources in agriculture: Cover crops, nitrogen fixation and ecological principals. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2009

Bahnmann, B. D. 2009. Identity and diversity of Agaricomycetes (Fungi: Basidiomycota) in temperate agricultural soils. MSc Thesis, University of Western Ontario, London, Ontario, Canada.

Hoben, J. P. 2009. On-farm nitrous oxide (N2O) response to nitrogen fertilizer in corn cropping systems. Thesis, Michigan State University, East Lansing, Michigan, USA..

Jolejole, M. C. 2009. Trade-offs, incentives, and the supply of ecosystem services from cropland. MS Thesis, Michigan State University, East Lansing, Michigan, USA..

Joo, W. 2009. Environmental acoustics as an ecological variable to understand the dynamics of ecosystems. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Levine, U. 2009. Comparisons of methanotroph communities in soils that consume atmospheric methane. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Lüpold, S. 2009. Sexual selection and sperm design in passerine birds. Dissertation, University of Sheffield, Sheffield, England, United Kingdom. .

Quintanilla, M. 2009. Acoustical and nematode community assessment for ecosystem characterization. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Syswerda, S. P. 2009. Ecosystem services from agriculture across a management intensity gradient in Southwest Michigan. Dissertation, Michigan State University, East Lansing, MI, USA.

2008

Bruesewitz, D. A. 2008. The effects of invasive zebra mussels (Dreissena polymorpha) on nitrogen cycling in freshwater ecosystems of the Midwestern United States. Ph.D. Dissertation, University of Notre Dame, Notre Dame, Indiana.

Campbell, B. M. 2008. Characterization of Tetracycline efflux genes in soil bacteria and an analysis of environmental factors controlling their expression. MS Thesis, Michigan State University, East Lansing, MI, USA.

Corbin, A. T. 2008. Transitional dynamics in converting conventional field cropping systems to certified organic. Ph.D. Dissertation, Michigan State University, East Lansing, MI, USA.

Gardiner, M. 2008. Landscape scale and within-field influences on predator abundance and biocontrol services in soybean fields. Ph.D. Dissertation, Michigan State University, East Lansing, MI, USA.

Gunckel, K. 2008. Preservice elementary teachers learning to use curriculum materials to plan and teach science. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Johnson, L. T. 2008. The influence of land use on the role of dissolved organic carbon and nitrogen in stream nutrient processing. Ph.D. Dissertation, University of Notre Dame, South Bend, Indiana, USA.

Mohan, L. 2008. Orchestrating productive discussion: A study of dialogic discourse and participation in science classrooms. Ph.D. Dissertation, Michigan State University, East Lansing, USA.

Subramanian, S. K. 2008. Effect of topography and soil properties on spatial variability of soil carbon (C) sequestration in different crop management systems of a long-term experiment. Dissertation, Michigan State University, East Lansing, MI, USA.

2007

Arango, C. P. 2007. Anthropogenic and landscape factors control stream nitrogen transformations at multiple spatial scales. Ph.D. Dissertation, University of Notre Dame, South Bend, Indiana, USA.

Beaulieu, J. J. 2007. Controls on greenhouse gas emissions from headwater streams. Ph.D. Dissertation, University of Notre Dame, South Bend, Indiana, USA.

Burgin, A. J. 2007. Alternative microbial pathways of nitrate removal from freshwater ecosystems. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Eichorst, S. A. 2007. Isolation and characterization of members of the phylum Acidobacteria from soils. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Gallaher, C. M. 2007. Phosphorus availability in annual and perennial cropping systems. MS Thesis, Michigan State University, East Lansing, Michigan, USA.

Huang, X. 2007. Analysis of effects of soil properties, topographical variables and management practices on spatial-temporal variability of crop yields. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Jin, L. 2007. Mg- and Ca-carbonate versus silicate dissolution rates in mid-latitude, glaciated soil profiles: Implicatons for riverine weathering fluxes and global biogeochemical budgets. Ph.D. Dissertation, University of Michigan, Ann Arbor, Michigan, USA.

Jinuntuya, M. 2007. Isotopologue fractionation during microbial reduction of N2O in soil. MS Thesis, Michigan State University, East Lansing, Michigan, USA.

Langley, S. A. 2007. The role of non-cropped vegetation in facilitating the response of parasitoids to soybean aphids (Aphis glycines). Thesis, Michigan State University, East Lansing, Michigan, USA.

Loecke, T. D. 2007. Soil resource heterogeneity and ecosystem processes: Effects of litter aggregation on soil microbial processes and plant root foraging. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Mahaney, W. 2007. Soil processes and plant species: Does the reintroduction of native grasses alter soil carbon and nitrogen cycling? Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Zhang, W. 2007. Optimal pest management in the presence of natural pest control ecosystem services. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2006

Costamagna, A. C. 2006. Do varying natural enemy assemblages impact Aphis glycines population dynamics? Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Fiedler, A. 2006. Evaluation of Michigan native pants to provide resources for natural enemy arthropods. MS Thesis, Michigan State University, East Lansing, Michigan, USA.

Huizinga, K. M. 2006. The diversity of dissimilatory nitrate reducers in an agroecosystem. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Kurzman, A. L. 2006. Changes in major solute chemistry as water infiltrates soils: comparisons between managed agroecosystems and unmanaged vegetation. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Sahli, H. F. 2006. Generalization in plant pollination systems and its effect on floral evolution within and among populations of wild radish (Raphanus raphanistrum). Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Stewart, C. E. 2006. Soil carbon saturation: A new model of soil organic matter stabilization and turnover. Ph.D. Dissertation, Colorado State University, Ft. Collins, Colorado, USA.

Wiangwang, N. 2006. Hyperspectral data modeling for water quality studies in Michigan's inland lakes. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2005

Emery, S. E. 2005. Population and community approaches to understanding invasion in grasslands. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Grandy, A. S. 2005. Ecosystem consequences of soil aggregation following soil disturbance. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Reid, N. 2005. Biogeochemical impacts of major reservoirs on the Kalamazoo River. MS. Thesis, Michigan State University, East Lansing, Michigan, USA.

Smith, R. G. 2005. Agroecosystem diversity: Impacts on weed communities and crop yield. PhD Dissertation, Michigan State University, East Lansing, Michigan, USA.

2004

Brewer, E. A. 2004. Impacts of calcium and nitrogen on carbon stabilization in soils of an afforested red pine stand. MS Thesis, Bradley University, Peoria, Illinois, USA.

Dethlefsen, L. 2004. Translational power differs between bacteria pursuing different ecological strategies. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Lynch, M. D. 2004. Species richness and composition of soil Basidiomycota. MS Thesis, University of Western Ontario, London, Ontario, Canada.

Smith, J. J. 2004. Impacts of soil ecosystem disturbance on nematode community structure. MS Thesis, Michigan State University, East Lansing, Michigan, USA.

Thobaben, E. T. 2004. Linking plant communities and environmental variables in southwestern Michigan wetlands. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2003

Holdaway-Dopp, H. A. 2003. Changes in microbial community responses to gradients of carbon, nitrogen, and wetting cycles in geoncentric layers of soil macro-aggregates. MS Theses, Michigan State University, East Lansing, Michigan, USA.

McKeown, C. H. 2003. Quantifying the roles of competition and niche separation in native and exotic cocconellids, and the changes in the community in response to an exotic prey species. MS. Thesis, Michigan State University, East Lansing, Michigan, USA.

Pitt, A. J. 2003. Isotopomer effects associated with nitrification and denitrification: Implications for the global nitrous oxide cycle. MS. Thesis, Michigan State University, East Lansing, Michigan, USA.

Smeenk, J. P. 2003. The impacts of continuous corn and a corn-soybean-wheat rotation grown under various management schemes on nitrate leaching, soil physical characteristics and net returns. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

South, S. R. 2003. Identification and mapping of agricultural tillage methods utilizing remotely sensed data. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Suwanwaree, P. 2003. Methane oxidation in terrestrial ecosystems: Patterns and effects of disturbance. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Whitmire, S. 2003. Anaerobic biogeochemical functions of Michigan wetlands and the influence of water source. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2002

Elwadie, M. 2002. Spatial and temporal dynamics of nitrogen-water interactions in corn in Michigan. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Fox, T. B. 2002. Biological control of soybean (Aphis glycines Matsumura) aphid in Michigan. MS Thesis, Michigan State University, East Lansing, Michigan, USA.

Raikow, D. F. 2002. How the feeding ecology of native and exotic mussels affects freshwater ecosystems. PhD Dissertation, Michigan State University, East Lansing, Michigan.

2001

Blackwood, C. 2001. Spatial organization in soil bacterial communities. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Broughton, L. C. 2001. Linking plant communities to soil microbial communities and processes in old-fields. PhD Dissertation, Michigan State University, East Lansing, Michigan, USA.

Fortuna, A. M. 2001. Management of cropping system and compost additions for enhanced nitrogen availability and carbon sequestration. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

2000

Bergsma, T. T. 2000. The relationship between denitrification and nitrous oxide flux from soil. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Buckley, D. H. 2000. The diversity and dynamics of microbial groups in soils from agroecosystems. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

De Gryze, S. 2000. Soil aggregation and aggregate turnover in cultivated and forested soils. M.S. Thesis, Katholieke Universiteit, Leuven, Belgium.

Kavdir, Y. 2000. Distribution of cover crop nitrogen retained by soil aggregates within a rye-corn agroecosystem. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Parry, D. 2000. Induced responses of poplars to defoliation and their effects on leaf-feeding Lepidoptera. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Sanchez, J. E. 2000. Managing cropping systems to enhance the active soil nitrogen pool and control its mineralization. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

1999

Asuming-Brempong, S. 1999. The effect of 2,4-D selection on microbial communities in micrososm and field studies and the impact on ecosystem function. Ph.D. Dissertation, Michigan State University, East Lansing, MI, USA.

1998

Cavigelli, M. 1998. Ecosystem consequences and spatial distribution of soil microbial community structure. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Corbett, A. L. 1998. Root responses to nutrient heterogeneity: A comparison of dominant and subordinate species from old fields. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Santos, D. 1998. Contributions of roots and organic mater to soil aggregate stabilization. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Willson, T. 1998. Managing nitrogen mineralization and biologically active organic matter fractions in agricultural soils. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

1997

Calderon, F. 1997. Lipids: Their value as molecular markers and their role in the carbon cycle of arbuscular mycorrihizae. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Foster, B. 1997. Plant competition and diversity in relation to productivity in old-field plant communities. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Knoke, K. E. 1997. Assessment of the origin and fate of nitrate from soil lysimeters using stable nitrogen isotopes. Thesis, Michigan State University, East Lansing, Michigan, USA.

Rasse, D. P. 1997. Alfalfa and corn root modifications of soil nitrogen flux and retention. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Sissoko, F. 1997. Enhancement of soil aggregation by the combined influences of soil wetting and drying and root-microbial associations. Thesis, Michigan State University, East Lansing, Michigan, USA.

1996

Bruns, M. 1996. Nucleic acid probe analysis of autotrophic ammonia-oxidizer populations in soils. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Colunga-Garcia, M. 1996. Interactions between landscape structure and ladybird beetles (Coleoptera: Coccinellidae) in field crop agroecosystems. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Roda, A. 1996. Effects of growing alfalfa with perennial grasses upon potato leafhopper Homoptera Cicadellidae and alfalfa weevils Coleoptera Curculionidae. Thesis, Michigan State University, East Lansing, Michigan, USA.

1995

Huang, B. 1995. Tillage modifications of root and shoot growth responses to soil water content and nitrogen concentration altered by seasons. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

1994

Daroub, S. 1994. The effect of tillage on phosphorus transformations in soils. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Huberty, L. 1994. Dominance, diversity, and resource competition in old-field plant communities. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Rosek, M. 1994. Spatial and temporal soil water content changes within a sloping landscape. Dissertation, Michigan State University, East Lansing, Michigan, USA.

1993

Harris, G. 1993. Nitrogen cycling in animal-, legume- and fertilizer-based cropping systems. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

Horwath, W. 1993. The dynamics of carbon, nitrogen, and soil organic matter in Populus plantations. Ph.D. Dissertation, Michigan State University, East Lansing, Michigan, USA.

1992

Aiken, R. M. 1992. Functional relations of root distributions with the flux and uptake of water and nitrate. Dissertation , Michigan State University, East Lansing, Michigan, USA.

Foster, B. L. 1992. The role of land use history in structuring an old-field plant community. M.Sc. Thesis, Michigan State University, East Lansing, Michigan, USA..

Maas, K. G. 1992. The effects of planting density and weed control on the partitioning of nitrogen and carbon in a hybrid poplar plantation. M.Sc. Thesis, Michigan State University, East Lansing, Michigan, USA.

1991

Burbank, D. H. 1991. Resource quality and recruitment of tree species in plantation forests of southwestern Michigan. Thesis, Michigan State University, East Lansing, Michigan, USA.

1990

Sirota, J. M. 1990. The temporal and spatial distribution and sex ratio of summer adults of the seven spotted ladybird beetle (Coccinella septempunctata L. Coleoptera: Coccinellidae) in alfalfa. Thesis, Michigan State University, East Lansing, Michigan, USA.

Wise, J. C. 1990. Local dispersal of the potato leafhopper Homoptera: Cicadellidae in response to alfalfa cutting. Thesis, Michigan State University, East Lansing, Michigan, USA..