Beaulieu, J. J., C. P. Arango, S. K. Hamilton, and J. L. Tank. 2008. The production and emission of nitrous oxide from headwater streams in the upper Midwest. Global Change Biology 14: 878-894.

Burgin, A. J., and S. K. Hamilton. 2008. NO3- driven SO42- production in freswhwater ecosystems: Implications for N and S cycling. Ecosystems 11: 908-922.

Cleland, E. E., C. Clark, S. Collins, J. Fargione, L. Gough, K. L. Gross, D. G. Milchunas, S. Pennings, W. D. Bowman, I. C. Burke, W. K. Lauenroth, G. P. Robertson, J. Simpson, D. Tilman, and K. N. Suding. 2008. Species responses to nitrogen fertilization in herbaceous plant communities and associated species traits (Data Paper). Ecology 89: p. 1175.

Collins, S., K. N. Suding, E. E. Cleland, M. Batty, S. Pennings, K. L. Gross, J. B. Grace, L. Gough, J. Fargionne, and C. M. Clark. 2008. Rank clocks and plant community dynamics. Ecology (in press).

Costamagna, A. C., D. A. Landis, and M. J. Brewer. 2008. The role of natural enemy guilds in Aphis glycines suppression. Biological Control 45: 368-379.

Gardiner, M. M., D. A. Landis, C. Gratton, C. D. DiFonzo, M. O. O’Neal, J. Chacon, M. Wayo, N. Schmidt, E. Mueller, and G. E. Heimpel. 2008. Landscape diversity enhances the biological control of an introduced crop pest in the north-central U.S. Ecological Applications (in press).

Huang, X., L. Wang, L. Yang, and A. N. Kravchenko. 2008. Management practice effects on relationships of grain yields with topography and precipitation. Agronomy Journal 100: 1463-1471.

Isaacs, R., J. Tuell, A. Fiedler, M. Gardiner, and D. Landis. 2008. Maximizing arthropod-mediated ecosystem services in agricultural landscapes: The role of native plants. Frontiers in Ecology and the Environment (in press).

Jin, L., S. K. Hamilton, and L. M. Walter. 2008. Mineral weathering rates in glacial drift soils (SW Michigan, U.S.A.): New constraints from seasonal sampling of waters and gases at soil monoliths. Chemical Geology 249: 129-154.

Kane, E. S., E. F. Betts, A. J. Burgin, H. M. Clilverd, C. L. Crenshaw, J. B. Fellan, I. H. Myers-Smith, J. A. O’Donnell, D. J. Sobota, W. J. Van Verseveld, and J. B. Jones. 2008. Precipitation control over nitrogen retention across watersheds: A synthesis of long-term ecological research. Ecohydrology 1: 105-117.

Kaplowitz, M., F. Lupi, and D. Bailey. 2008. Wetland mitigation banking: The banker’s perspective. Journal of Soil and Water Conservation 63: 162-172.

Kravchenko, A. N., and X. Hao. 2008. Management effects on spatial variability characteristics of surface mineralizable C. Geoderma 144: 387-394.

Mahaney, W. M., K. A. Smemo, and K. L. Gross. 2008. Impacts of C4 grass introductions on soil carbon and nitrogen cycling in C3-dominated successional systems. Oecologia 157: 295-305.

Masiello, C. A., M. E. Gallagher, J. T. Randerson, R. M. Deco, and O. A. Chadwick. 2008. Evaluating two experimental approaches for measuring ecosystem carbon oxidation state and oxidative ratio. Journal of Geophysical Research 113: G03010, doi:10.1029/2007JG000534.

Mulholland, P. J., A. M. Helton, G. C. Poole, R. O. Hall, S. K. Hamilton, B. J. Peterson, J. L. Tank, L. R. Ashkenas, L. W. Cooper, C. N. Dahm, W. K. Dodds, S. Findlay, S. V. Gregory, and N. B. Grimm. 2008. Stream denitrification across biomes and its response to anthropogenic nitrate loading. Nature 452: 202-206.

Noma, T., and M. J. Brewer. 2008. Fungal pathogens infecting soybean aphid and aphids on other crops grown in soybean production areas of Michigan. Great Lakes Entomologist 40: 41-49.

Noma, T., and M. J. Brewer. 2008. Seasonal abundance of resident parasitoids and predatory flies and corresponding aoybean aphid mortality, with comments on classical biological control of soyubean aphid in the U.S. Midwest. Journal of Economic Entomology 101: 278-287.

Payne, E. K., A. J. Burgin, and S. K. Hamilton. 2008. Nitrate stimulation of sulfur oxidation in freshwaters: Evidence from sediment nitrate manipulation using porewater equlibrators. Aquatic Microbial Ecology (in press).

Ritchie, J. T., and B. Basso. 2008. Water use efficiency is not constant when crop water supply is adequate or fixed: The role of agronomic management. European Journal of Agronomy 28: 273-281.

Robertson, G. P. 2008. Long-term ecological research: Re-inventing network science. Frontiers in Ecology and the Environment 6: 281.

Robertson, G. P., V. G. Allen, G. Boody, E. R. Boose, N. G. Creamer, L. E. Drinkwater, J. R. Gosz, L. Lynch, J. L. Havlin, L. E. Jackson, S. T. A. Pickett, L. Pitelka, A. Randall, A. S. Reed, T. R. Seastedt, R. B. Waide, and D. H. Wall. 2008. Long-term agricultural research: A research education, and extension imperative. BioScience 58: 640-643.

Robertson, G. P., V. H. Dale, O. C. Doering, S. P. Hamburg, J. M. Melillo, M. M. Wander, W. J. parton, P. R. Adler, J. N. Barney, R. M. Cruse, C. S. duke, P. M. Fearnside, R. F. Follett, H. K. Gibbs, J. Goldemberg, D. J. Miadenoff, D. Ojima, M. W. Palmer, A. Sharpley, L. Wallace, K. C. Weathers, J. A. Wiens, and W. W. Wilhelm. 2008. Sustainable biofuels redux. Science 322: 49.

Safir, G. R., S. H. Gage, M. Colunga-Garcia, P. R. Grace, and S. Rowshan. 2008. Simulation of corn yields in the upper great lakes region of the U.S. using a modeling framework. Computers and Electronics in Agriculture 60: 301-305.

Smith, R. G., C. P. McSwiney, A. S. Grandy, P. Suwanwaree, R. M. Snider, and G. P. Robertson. 2008. Diversity and abundance of earthworms across an agricultural land-use intensity gradient. Soil & Tillage Research 100: 83-88.

Smith, R. G., K. L. Gross, and G. P. Robertson. 2008. Effects of crop diversity on agrecosystem function: Crop yield response Ecosystems 11: 355-366.

Swinton, S. M. 2008. Reimagining farms as managed ecosystems. Choices 23: 28-31.

Whitmire, S. L., and S. K. Hamilton. 2008. Rates of anaerobic microbial metabolism in wetlands of divergent hydrology on a glacial landscape. Wetlands 28: 703-714.

Burgin, A. J., and S. K. Hamilton. 2007. Have we overemphasized the role of dentirification in aquatic ecosystems? A review of nitrate removal pathways. Frontiers in Ecology and the Environment 5: 89-96

Clark, C. M., E. E. Cleland, and S. L. Collins. 2007. Environmental and plant community determinants of species loss flooowing nitrogen enrichment. Ecology Letters 10: 596-607.

Costamagna, A. C., and D. A. Landis. 2007. Quantifying predation on soybean aphid through direct field observations. Biological Control 42: 16-24.

Costamagna, A. C., D. A. Landis, and C. D. DiFonzo. 2007. Suppression of soybean aphid by generalist predators results in a trophic cascade in soybeans. Ecological Applications 17: 441-451

Costamagna, A. C., W. van der Werf, F. J. J. A. Bianchi, and D. A. Landis. 2007. An exponential growth model with decreasing r captures bottom-up effects on the population growth Aphis glycines Matsumura (Hemiptera: Aphiddae). Agricultural and Forest Entomology 9: 297-305.

Dethlefsen, L., and T. M. Schmidt. 2007. Performance of the translational apparatus varies with the ecological strategies of bacteria. Journal of Bacteriology 189: 3237-3245

Drinkwater, L. E., and S. S. Snapp. 2007. Nutrients in agroecosystems: Rethinking the management paradigm. Advances in Agronomy 92: 163-186.

Eichorst, S. A., J. A. Breznak, and T. M. Schmidt. 2007. Isolation and characterization of bacteria from soil that define Terriglobus gen. nov., in the phylum Acidobacteria. Applied and Environmental Microbiology 73: 2708-2717.

Gardiner, M. M., and D. A. Landis. 2007. Impact of intraguild predation by Harmonia axyridis (Coloptera: Coccinellidae) on Aphis glycines (Hemiptera: Aphididae). Agricultural and Forest Entomology 9: 297-305.

Grandy, A.S. and G.P. Robertson. 2007. Land-use intensity effects on soil organic carbon accumulation rates and mechanisms. Ecosystems 10:59-74.

Hamilton, S. K., A. L. Kurzman, C. Arango, L. Jin, and G. P. Robertson. 2007. Evidence for carbon sequestration by agricultural liming. Global Biogeochem. Cycles 21: GB2021, doi:10.1029/2006GB002738.

Hamilton, S. K., and N. E. Ostrom. 2007. Measurement of the stable isotope ratio of dissolved N2 in 15N tracer experiments. Limnology and Oceanography Methods 5: 233-240.

Hao, X., and A. N. Kravchenko. 2007. Management practive effects on surface total carbon: Differences along a textural gradient. Agronomy Journal 99: 18-26.

Horvath, B. J., A. N. Kravchenko, G. P. Robertson, and J. M. Vargas, Jr. 2007. Geostatistical analysis of dollar spot epidemics occuring on a mixed sward of creeping bentreass and annual bluegrass. Crop Science 47: 1206-1216.

Jin, L., E. Williams, K. Szramek, L. M. Walter, and S. K. Hamilton. 2007. Relative contributions of silicate versus carbonate mineral weathering in soils developed on Pleistocene glacial drift: An integrated study of soil and soil water geochemistry across an environmental gradient from the Upper- to Lower-Peninsulas of Michigan. Geochemica Acta 72: 1027-1042.

Kaiser, M. E., T. Noma, M. J. Brewer, K. S. Pike, J. R. Vockeroth, and S. D. Gaimari. 2007. Hymenopteran parasitoids and dipteran predators found utilizing soybean aphid after its midwestern United States invasion. Annals of the Entomological Society of America 100: 196-205.

Kravchenko, A. N., and G. P. Robertson. 2007. Can topographical and yield data substantially improve total soil carbon mapping by regression kriging? Agronomy Journal 99: 12-17.

Menalled, F. D., R. G. Smith, J. T. Dauer, and T. B. Fox. 2007. Impact of agricultural management systems on carabid communities and weed seed predation. Agriculture, Ecosystems, and Environment 118: 49-54.

Morris, S. J., S. Bohm, S. Haile-Mariam, and E. A. Paul. 2007. Evaluation of carbon accrual in afforested agricultural soils. Global Climate Change 13: 1145-1156.

Ostrom, N. E., A. J. Pitt, R. L. Sutka, P. H. Ostrom, A. S. Grandy, K. H. Huizinga, and G. P. Robertson. 2007. Isotopologue effects during N2O reduction in soils and in pure cultures of denitrifiers. Journal of Geophysical Research 112:

Park, E. J., W. J. Sul, and A. J. M. Smucker. 2007. Glucose additions to aggregates subjected to drying/wetting cycles promote carbon sequestration and aggregate stability. Soil Biology and Biochemistry 39: 2758-2768.

Peng, X., R. Horn, and A. J. M. Smucker. 2007. Pore shrinkage dependency of inorganic and organic soils on wetting and drying cycles. Soil Science Society of America Journal 71: 1095-1104.

Pike, K. S., P. Stary, M. J. Brewer, T. Noma, S. Langley, and M. E. Kaiser. 2007. A new species of Binodoxys (Hymenoptera: Braconidae, Aphidlinae), parasitoid of the soybean aphid, Aphis glycines Matsumura, with comments on biocontrol. Proceedings of the Entomological Society Washington 109: 359-365.

Reid, N. J., and S. K. Hamilton. 2007. Controls on algal abundance in a eutrophic river with varying degrees of impoundment (Kalamazoo River, Michigan, USA). Lake and Reservoir Management 23: 219.230.

Sahli, H. F., and J. K. Conner. 2007. Visitation, effectiveness, and efficiency of 15 genera of visitors to wild radish, Raphanus raphanistrum (Brassicaceae). American Journal of Botany 94: 203-209.

Scriber, J. M. 2007. A mini-review of the “feeding specialization/physiological efficiency” hypothesis: 50 years of difficulties, and strong support from the North American Lauraceae-specialist, Papilio troilus (Papilionidae: Lepidoptera). Trends in Entomology 4: 1-42.

Smith, R. G., and K. L. Gross. 2007. Assembly of weed communities along a crop diversity gradient. Journal of Applied Ecology 44: 1046-1056.

Smith, R. G., F. D. Menalled, and G. P. Robertson. 2007. Temporal yield variability under conventional and alternative management systems. Agronomy Journal 99: 1629-1634.

Smucker, A. J. M., E. J. Park, J. Dormer, and R. Horn. 2007. Soil micropore contributions to soluble carbon flux rates and microbial community responses within macro-aggregates. Vadose Zone Journal 6: 282-290.

Swinton, S. M., F. Lupi, G. P. Robertson, and S. K. Hamilton. 2007. Ecosystem services and agriculture: cultivating agriculture ecosystems for diverse benefits. Ecological Economics: 245-252.

White, S. S., K. A. Renner, F. D. Menalled, and D. A. Landis. 2007. Feeding preferences of weed seed predators and effect on weed emergence. Weed Science 55: 606-612.

Wossink, A., and S. Swinton. 2007. Jointness in production and farmers’ willingness to supply non-marketed ecosystem services. Ecological Economics 64: 297-304.

Zhang, W., T. H. Ricketts, C. Kremen, K. Carney, and S. M. Swinton. 2007. Ecosystem services and disservices to agriculture. Ecological Economics 64: 253-260.

Ambus, P., and G. P. Robertson. 2006. The effect of increased N deposition on nitrous oxide, methane, and carbon dioxide fluxes from unmanaged forest and grassland communities in Michigan. Biogeochemistry 79:315-337

Blackwood, C. B., C. J. Dell, A. J. M. Smucker, and E. A. Paul. 2006. Eubacterial communities in different soil macroaggregate environments and cropping systems. Soil Biology and Biochemistry 38: 720-728.

Butler, R., M. Servilla, S. Gage, J. Basney, V. Welch, B. Baker, T. Fleury, P. duda, D. Gehrig, M. Bletzinger, J. Tao, and D. M. Freemon. 2006. Cyberinfrastructure for the analysis of ecological acoustic sensor data: A use case study in grid deployment. Proceedings Challenges of Large Applications in Distributed Environments: 25-33.

Costamagna, A. C., and D. A. Landis. 2006. Predators exert top-down control of soybean aphid across a gradient of agricultural management systems. Ecological Applications 16: 1619-1628.

Davis, A. S., S. G. Hallett, and K. A. Renner. 2006. Weed seed mortality in soils with contrasting agricultural management histories. Weed Science 54: 291-297.

Farber, S., R. Costanza, D. L. Childers, J. Erickson, K. L. Gross, M. Grove, C. S. Hopkinson, J. Kahn, S. Pincetl, A. Troy, P. Warren, and M. A. Wilson. 2006. Linking ecology and economics for ecosystem management. BioScience 56: 121-133.

Gantner, S., M. Schmid, C. Durr, R. Schuhegger, A. Steidle, P. Hutzler, C. Langebartels, L. Eberl, A. Hartmann, and F. B. Dazzo. 2006. In situ quantitation of the spatial scale of calling distances and population density-independent N-acylhomoserine lactone-mediated communication by rhizobacteria colonized on plant roots. FEMS Microbial Ecology 56: 188-194.

Gerakis, A., D. Rasse, Y. Kavdir, A. Smucker, and J. T. Ritchie. 2006. Simulation of leaching losses in the nitrogen cycle. Communications in Soil Science and Plant Analysis 13: 1-25.

Grace, P. R., J. N. Ladd, G. P. Robertson, and S. H. Gage. 2006. SOCRATES – A simple model for predicting long-term changes in soil organic carbon in terrestrial ecosystems. Soil Biology and Biochemistry 38: 1172-1176.

Grace, P. R., M. Colunga-Garcia, S. H. Gage, G. P. Robertson, and G. R. Safir. 2006. The potential impact of agricultural management and climate change on soil organic carbon resources in terrestrial ecosystems of the North Central Region of the United States. Ecosystems 9: 816-827.

Grandy, A. S., and G. P. Robertson. 2006. Aggregation and organic matter protection following tillage of an undisturbed soil profile. Soil Science Society of America Journal 70: 1398-1406.

Grandy, A. S., and G. P. Robertson. 2006. Initial cultivation of a temperate-region soil immediately accelerates aggregate turnover and CO2 and N2O fluxes . Global Change Biology 12: 1507-1520.

Grandy, A. S., G. P. Robertson, and K. D. Thelen. 2006. Do productivity and environmental tradeoffs justify periodically cultivating no-till cropping systems? Agronomy Journal 98: 1377-1383.

Grandy, A. S., T. D. Loecke, S. Parr, and G. P. Robertson. 2006. Long-term trends in nitrous oxide emissions, soil nitrogen, and crop yields of till and no-till cropping systems. Journal of Environmental Quality 35: 1487-1495.

Kosola, K. R., D. Parry, and B. A. Workmaster. 2006. Response of condensed tannins in poplar roots to fertilization and gypsy moth defoliation. Tree Physiology 26: 1607-1611.

Kravchenko, A. N., G. P. Robertson, S. S. Snapp, and A. J. M. Smucker. 2006. Using spatial variability information for improved estimates of soil carbon. Agronomy Journal 98: 823-829.

Kravchenko, A. N., G. P. Robertson, X. Hao, and D. G. Bullock. 2006. Management practice effects on surface total carbon: Difference in spatial variability patterns. Agronomy Journal 98: 1559-1568.

Lynch, M. D., and R. G. Thorn. 2006. Diversity of basidiomycetes in Michigan agricultural soils. Applied and Environmental Microbiology 72: 7050-7056.

Mueller, F., A. J. M. Smucker, and R. Horn. 2006. From micro-pores to ecosystems: Ecological gradients as components of environmental analysis and management. Proceedings of the International Soil Tillage Research Organization (ISTRO) 17: 1640-1641.

Nessledge, G. M., B. A. Maurer, and S. H. Gage. 2006. Gypsy moth response to landscape structure differs from neutral model predictions: Implications for invasion monitoring. Bio Invasions: DOI 10.1007/s/10530-006-9061-1.

Paul, E. A., S. J. Morris, R. T. Conant, and A. F. Plante. 2006. Does the acid hydrolysis incubation method measure meaningful soil organic carbon pools? Soil Science Society of America Journal 70: 1023-1035.

Penton, C. R., A. H. Devol, and J. M. Tiedje. 2006. Molecular evidence for the broad distribution of anammox in freshwater and marine sediments. Applied and Environmental Microbiology 72: 6829-6832.

Pietola, L., and A. J. M. Smucker. 2006. Elimination of non-root residue by image analysis of very fine roots. Computers and Electronics in Agriculture 53: 92-97.

Sahli, H. F., and J. K. Conner. 2006. Characterizing ecological generalization in plant-pollination systems. Oecologia 148: 365-372.

Schmidt, T. M. 2006. The maturing of microbial ecology. International Microbiology 9: 217-223

Smith, R. G. 2006. Timing of tillage is an important filter on the assembly of weed communities. Weed Science 54: 705-712.

Smith, R. G., and K. L. Gross. 2006. Rapid change in the germinable fraction of the weed seed bank in crop rotations. Weed Science 54: 1094-1100.

Smith, R. G., and K. L. Gross. 2006. Weed community and corn yield variability in diverse management systems. Weed Science 54: 106-113.

Sutka, R. L., N. E. Ostrom, P. H. Ostrom, J. A. Breznak, H. Gandhi, A. J. Pitt, and F. Li. 2006. Distinguishing nitrous oxide production from nitrification and denitrification on the basis of isotopomer abundences. Applied and Environmental Microbiology 72: 638-644.

Swinton, S. M., F. Lupi, G. P. Robertson, and D. A. Landis. 2006. Ecosystem services from agriculture: Looking beyond the usual suspects. American Journal of Agricultural Economics 88: 1160-1166.

Basso, B., and J. T. Ritchie. 2005. Impact of compost, manure and inorganic fertilizer on nitrate leaching and yield for a 6-year maize-alfalfa rotation in Michigan. Agriculture, Ecosystems & Environment 108: 329-241.

Davis, A. S., J. Cardina, F. Forcella, G. B. Johnson, G. Kegode, J. L. Lindquist, E. C. Luschei, K. A. Renner, C. K. Sprague, and M. M. Williams. 2005. Environmental factors affecting seedbank persistence of 13 annual weeds across the U.S. corn belt. Weed Science 53: 296-306.

Davis, A. S., K. Renner, and K. L. Gross. 2005. Weed seedbank and community shifts in a long-term cropping systems experiment. Weed Science 53: 296-306.

Dethlefsen, L., and T. M. Schmidt. 2005. Differences in codon bias cannot explain differences in translational power among microbes. BMC Bioinformatices 6: 3.

Elwadie, M., F.J. Pierce, and J. Qi. 2005. Remote sensing of corn canopy dynamics and biophysical variables estimation. Agronomy Journal 97: 99-105.

Geml, J., D. D. Davis, and D. M. Geiser. 2005. Systematics of the genus Sphaerobolus based on molecular and morphological data, with the description of Sphaerobolus ingoldii sp. nov. Mycologia 97: 680-694.

Kavdir, Y., and A. J. M. Smucker. 2005. Soil aggregate sequestration of cover crop root and shoot-derived nitrogen. Plant and Soil 272: 263-276.

Kavdir, Y., D. P. Rasse, and A. J. M. Smucker. 2005. Specific contributions of dacaying alfalfa roots to nitrate leaching in a Kalamazoo loam soil. Agriculture, Ecosystems, and Environment 109: 97-106.

Kravchenko, A. N., G. P. Robertson, K. D. Thelen, and R. R. Harwood. 2005. Management, topographical, and weather effects on spatial variability of crop grain yields. Agronomy Journal 97: 514-523.

Landis, D. A., F. D. Menalled, A. C. Costamagna, and T. K. Wilkinson. 2005. Manipulating plant resources to enhance beneficial arthropods in agricultural landscapes. Weed Science 53: 902-908.

McSwiney, C. P., and G. P. Robertson. 2005. Non-linear response of N2O flux to incremental fertilizer addition in a continuous maize (Zea mays sp.) cropping system. Global Change Biology 11: 1712-1719.

Mosier, A. R., A. D. Halvorson, G. A. Peterson, G. P. Robertson, and L. Sherrod. 2005. Measurement of net global warming potential in three agroecosystems. Nutrient Cycling in Agroecosystems 7: 67-76.

Pennings, S. C., C. M. Clark, E. E. Cleland, S. L. Collins, L. Gough, K. L. Gross, D. G. Milchunas, and K. N. Suding. 2005. Do individual plant species show predictable responses to nitrogen addition across multiple experiments? Oikos 110: 547-555.

Porter, J. H., P. Arzberger, H.-W. Braun, P. Bryant, S. H. Gage, T. Hansen, P. Hanson, C.-C. Lin, F.-P. Lin, T. K. Kratz, W. Michener, S. Shapiro, and T. Williams. 2005. Wireless sensor networks for ecology. BioScience 7: 561-572.

Reeves, J. B. I., B. A. Francis, and S. K. Hamilton. 2005. Specular reflection and diffuse reflectance spectroscopy of soils. Applied Spectroscopy 59: 39-46.

Robertson, G. P., and S. M. Swinton. 2005. Reconciling agricultural productivity and environmental integrity: A grand challenge for agriculture. Frontiers in Ecology and the Environment 3: 38-46.

Smith, R. G., C. P. McSwiney, A. S. Grandy, P. Suwanwaree, R. M. Snider, and G. P. Robertson. 2008. Diversity and abundance of earthworms across an agricultural land-use intensity gradient. Soil & Tillage Research 100: 83-88.

Smith, R. G., K. L. Gross, and S. Januchowski. 2005. Earthworms and weed seed distribution in annual crops. Agriculture, Ecosystems, and the Environment 108: 363-367.

Suding, K. N., S. L. Collins, L. Gough, C. Clark, E. E. Cleland, K. L. Gross, D. G. Milchunas, and S. Pennings. 2005. Functional- and abundance-based mechanisms explain diversity loss due to N fertilization. PNAS 102: 4387-4392.

Suwanwaree, P., and G. P. Robertson. 2005. Methane oxidation in forest, successional, and no-till agricultural ecosystems: Effects of nitrogen and soil disturbance. Soil Science Society of America Journal 69: 1722-1729.

Swinton, S. M. 2005. As ecosystem services are demanded of agriculture, what of agricultural economists? Western Economics Forum 4: 21-23.

Whitmire, S. L., and S. K. Hamilton. 2005. Rapid removal of nitrate and sulfate by freshwater wetland sediments. Journal of Environmental Quality 34: 2062-2071.

Dazzo, F. B. 2004. New CMEIAS image analysis software for computer-assisted microscopy of microorganisms and their ecology. Microscopy Today 12: 18-23.

De Gryze, S., J. Six, K. Paustian, S. J. Morris, E. A. Paul, and R. Merckx. 2004. Soil organic carbon pool changes following land use conversions. Global Change Biology 10: 1120-1132.

Dodds, W. K., E. Marti, J. L. Tank, J. Pontius, S. K. Hamilton, N. B. Grimm, W. B. Bowden, W. H. McDowell, B. J. Peterson, H. M. Valett, J. R. Webster, and S. Gregory. 2004. Carbon and nitrogen stoichiometry and nitrogen cycling in streams. Oecologia 140: 458-467

Ebert-May, D., K. S. Williams, E. P. Weber, J. Hodder, and D. Luckie. 2004. Practicing scientific inquiry: what are the rules? Frontiers in Ecology and the Environment 2: 492-493.

Hamilton, S. K., J. L. Tank, D. F. Raikow, E. Siler, N. J. Dorn, and N. Leonard. 2004. The role of in-stream vs. allochthonous N in stream food webs: Modeling the results of a nitrogen isotope addition experiment. Journal of the North American Benthological Society 23: 429-448.

Kavdir, Y., and A. J. M. Smucker. 2004. Effects of rye roots and shoots on soil aggregate erosion rate. Journal of Harran Uni. Agr. Fac. 8: 29-32.

Kosola, K. R., D. M. Durall, G. P. Robertson, D. I. Dickmann, D. Parry, C. A. Russell, and E. A. Paul. 2004. Resilience of mycorrhizal fungi on defoliated and fertilized hybrid poplars. Canadian Journal of Botany 82: 671-680.

Landis, D. A., T. B. Fox, and A. C. Costamagna. 2004. Impact of multicolored Asian lady beetle as a biological control agent. American Entomologist 50: 153-155.

Menalled, F. D., D. A. Landis, and L. E. Dyer. 2004. Research and extension supporting ecologically based IPM systems. Journal of Crop Improvement 11: 153-174.

Mullholland, P. J., H. M. Valett, J. R. Webster, S. A. Thomas, L. N. Cooper, S. K. Hamilton, and B. J. Peterson. 2004. Stream denitrification and total nitrate uptake rates measured using a field 15N tracer addition approach. Limnology and Oceanography 49: 809-820.

Reddy, C. K., and F. B. Dazzo. 2004. Computer-assisted segmentation of bacteria in color micrographs. Microscopy & Analysis 18: 5-7.

Robertson, G. P., and P. R. Grace. 2004. Greenhouse gas fluxes in tropical and temperate agriculture: The need for a full-cost accounting of global warming potentials. Environment, Development and Sustainability 6:51-63.

Robertson, G. P., J. C. Broome, E. A. Chornesky, J. R. Frankenberger, P. Johnson, M. Lipson, J. A. Miranowski, E. D. Owens, D. Pimentel, and L. A. Thrupp. 2004. Rethinking the vision for environmental research in U.S. agriculture. BioScience 54: 61-65.

Russell, C. A., K. R. Kosola, E. A. Paul, and G. P. Robertson. 2004. Nitrogen cycling in poplar stands defoliated by insects. Biogeochemistry 68: 365-381.

Rutledge, C. E., R. J. O’Neil, T. B. Fox, and D. A. Landis. 2004. Soybean aphid predators and their use in IPM. Annals of the Entomological Society of America 97: 240-248.

Sanchez, J. E., R. R. Harwood, T. C. Willson, K. Kizilkaya, J. Smeenk, E. Parker, E. A. Paul, B. D. Knezek, and G. P. Robertson. 2004. Integrated agricultural systems: Managing soil carbon and nitrogen for productivity and environmental quality. Agronomy Journal 96: 769-775.

Scriber, J. M. 2004. Non-target impacts of forest defoliator management options: Decision for no spraying may have worse impacts on non-target Lepidoptera that Bacillus thuringiensis insecticides. Journal of Insect Conservation 8: 241-261.

South, S. R., J. Qi, and D. P. Lusch. 2004. Optimal classification methods for mapping agricultural tillage practices. Remote Sensing of Environment 91: 90-97.

Stevenson, B. S., S. A. Eichorst, J. T. Wertz, and T. M. Schmidt. 2004. New strategies for cultivation and detection of previously uncultured microbes. Applied and Environmental Microbiology 70: 4748-4755.

Stres, B., I. Mahne, G. Avgustin, and J. M. Tiedje. 2004. Nitrous oxide reductase (nosZ) gene fragments differ between native and cultivated Michigan soils. Applied and Environmental Microbiology 70: 301-309.

Suding, K. N., K. L. Gross, and G. Houseman. 2004. Alternative states and positive feedbacks in restoration ecology. Trends in Ecology & Evolution 19: 46-53.

Blackwood, C. B. 2003. Eubacterial community structure and population size within the soil light fraction, rhizosphere, and heavy fraction of several agricultural systems. Soil Biology and Biochemistry 35: 1245-1255.

Blackwood, C. B., T. Marsh, S.-H. Kim, and E. A. Paul. 2003. Terminal restriction fragment length polymorphism data analysis for quantitative comparison of microbial communities. Applied and Environmental Microbiology 69: 926-932.

Buckley, D. H., and T. M. Schmidt. 2003. Diversity and dynamics of microbial communities in soils from agroecosystems. Environmental Microbiology 5: 441-452.

Dalal, R. C., W. Wang, G. P. Robertson, and W. J. Parton. 2003. Nitrous oxide emission from Australian agricultural lands and mitigation options: a review. Australian Journal of Soil Research 41: 165-195

Fortuna, A. M., E. A. Paul, and R. R. Harwood. 2003. The effects of compost and crop rotations on carbon turnover and the particulate organic matter fraction. Soil Science 168: 434-444.

Fortuna, A. M., R. R. Harwood, G. P. Robertson, J. W. Fisk, and E. A. Paul. 2003. Seasonal changes in nitrification potential associated with application of N fertilizer and compost in maize systems of southwest Michigan. Agriculture, Ecosystems and the Environment 97: 285-293.

Fortuna, A. M., R. R. Harwood, K. Kizilkaya, and E. A. Paul. 2003. Optimizing nutrient availability and potential carbon sequestration in an agroecosystem. Soil Biology and Biochemistry 35: 1005-1013.

Johnson, N. C., D. L. Rowland, L. Corkidi, L. M. Egerton-Warburton, and E. B. Allen. 2003. Nitrogen enrichment alters mycorrhizal allocation at five mesic to semiarid grasslands. Ecology 84: 1895-1908.

Paul, E. A., S. J. Morris, J. Six, K. Paustian, and E. G. Gregorich. 2003. Interpretation of soil carbon and nitrogen dynamics in agricultural and afforested soils. Soil Science Society of America Journal 67: 1620-1628.

Reilly, J., F. Tubiello, B. A. McCarl, D. Abler, R. Darwin, K. Fuglie, S. Hollinger, R. C. Izaurralde, S. Jagtag, J. Jones, L. Mearns, D. Ojima, E. A. Paul, K. Paustian, S. Riha, N. Rosenberg, and C. Rosenzweig. 2003. U.S. agriculture and climate change: New results. Climatic Change 57: 43-69.

Smucker, A. J. M., C. J. Dell, and D. Santos. 2003. Tillage modifications of carbon sequestration within soil aggregates. Proceedings of the 16th International Conference of ISTRO: 1157-1159.

Symstad, A. J., F. S. Chapin, D. H. Wall, K. L. Gross, L. F. Huenneke, G. G. Mittelbach, D. P. C. Peters, and D. G. Tilman. 2003. Long-term and large-scale perspectives on biodiversity-ecosystem functioning relationships. BioScience 53: 89-98.

Webster, J. R., P. J. Mulholland, J. L. Tank, H. M. Valett, W. R. Dodds, B. J. Peterson, W. B. Bowden, C. N. Dahm, S. Findlay, S. V. Gregory, N. B. Grimm, S. K. Hamilton, S. L. Johnson, E. Marti, W. B. McDowell, J. L. Meyer, D. D. Morrall, S. A. Thomas, and W. M. Wollheim. 2003. Factors affecting ammonium uptake in streams – an inter-biome perspective. Freshwater Biology 48: 1329-1352.

Agrawal, A. A., K. R. Kosola, and D. Parry. 2002. Gypsy moth defoliation and N fertilization affect hybrid poplar regeneration following coppicing. Canadian Journal of Forest Research 32: 1491-1495.

Bergsma, T. T., G. P. Robertson, and N. E. Ostrom. 2002. Influence of soil moisture and land use history on denitrification end-products. Journal of Environmental Quality 31: 711-717.

Dodds, W. K., A. J. Lopez, R. D. Bowden, S. Gregory, N. B. Grimm, S. K. Hamilton, A. E. Hershey, E. Marti, W. H. McDowell, J. L. Meyer, D. D. Morrall, P. J. Mulholland, B. J. Peterson, J. T. Tank, H. M. Valett, J. R. Webster, and W. M. Wollheim. 2002. N uptake as a function of concentration in streams. Journal of the North American Benthological Society 21: 206-220.

Findlay, S., J. L. Tanks, S. Dye, H. M. Valett, P. J. Mulholland, W. H. McDowell, S. Johnson, S. K. Hamilton, J. A. Edmonds, W. K. Dodds, and W. B. Bowden. 2002. A cross-system comparison of bacterial and fungal biomass in detritus pools of headwater streams. Microbial Ecology 43: 55-66.

Hanson, E. J., P. A. Throop, S. Serce, J. Ravenscroft, and E. A. Paul. 2002. Comparison of nitrification rates in blueberry and forest soils. American Journal of Horticulture Science 127: 136-142.

Kosola, K. R., D. I. Dickmann, and D. Parry. 2002. Carbohydrates in individual poplar fine roots- effects of root age and defoliation. Tree Physiology 22:741-746.

Mulholland, P. J., J. L. Tank, J. R. Webster, W. K. Dodds, S. K. Hamilton, S. L. Johnson, E. Marti, W. H. McDowell, J. Merriam, B. J. Peterson, H. M. Valett, and W. M. Wollheim. 2002. Can uptake lengths in streams be determined by nutrient addition experiments? : Results from an inter-biome comparison study. Journal of the North American Benthological Society 21: 544-560.

Ostrom, N. E., L. O. Hedin, J. C. von Fischer, and G. P. Robertson. 2002. Nitrogen transformations and NO3- removal at a soil-stream interface: a stable isotope approach. Ecological Applications 12: 1027-1043.

Sanchez, J. E., E. A. Paul, T. C. Willson, J. Smeenk, and R. R. Harwood. 2002. Corn root effects on the nitrogen-supplying capacity of a conditioned soil. Agronomy Journal 94: 391-396.

Scriber, J. M. 2002. Latitudinal and local geographic mosaics in host plant preferences as shaped by thermal units and voltinism. European Journal of Entomology 99: 225-239.

Scriber, J. M. 2002. The evolution of insect-plant relationships; Chemical constraints, coadaptation and concordance of insect/plant traits. Entomologia Experimentalis et Applicata 104: 217.235.

Scriber, J. M., K. Keefover, and S. Nelson. 2002. Hot summer temperatures may stop genetic introgression of Papilio canadensis south of the hybrid zone in the North Amercian Great Lakes region. Ecography 25: 184-192.

Scriber, J. M., M. Deering, J. Donovan, H. Hereau, G. Ording, and A. Stump. 2002. Species at the edge: Island refuges, interspecific hybridization, and climate-driven range extensions of North American butterflies. Proceedings 10th Insects in Captivity Conference 10: 178-185.

Six, J., P. Callewaert, S. Landers, S. D. Gryze, S. J. Morris, R. G. Gregorich, E. A. Paul, and K. Paustian. 2002. Measuring and understanding carbon storage in afforested soils by physical fractionation. Soil Science Society of America Journal 66: 1981-1987.

Six, J., R. T. Conant, E. A. Paul, and K. Paustian. 2002. Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils. Plant and Soil 241: 155-176.

Tesar, D., and J. M. Scriber. 2002. Growth season constraints in climatic cold pockets: Tolerance of subfreezing temperatures and compensatory growth by tiger swallowtail butterfly larvae. Holarctic Lepidoptera 7: 39-44.

Ambus, P., E. S. Jensen, and G. P. Robertson. 2001. Nitrous oxide and N-leaching losses from agricultural soil: influence of crop residue particle size, quality and placement. Phyton (Austria) 41: 7-15.

Buckley, D. H., and T. M. Schmidt. 2001. Environmental factors influencing the distribution of rRNA from Verrucomicrobia in soil. FEMS Microbial Ecology 35: 105-112.

Buckley, D. H., and T. M. Schmidt. 2001. The structure of microbial communities in soil and the lasting impact of cultivation. Microbial Ecology 42:11-21.

Cavigelli, M. A., and G. P. Robertson. 2001 Role of denitrifier diversity in rates of nitrous oxide consumption in a terrestrial ecosystem. Soil Biology and Biochemistry 33:297-310.

Daroub, S., B. G. Ellis, and G. P. Robertson. 2001. Effect of cropping and low-chemical input systems on soil phosphorus fractions. Soil Science 166: 281-291.

De Roo, R. D., Y. Du, F. T. Ulaby, and M. C. Dobson. 2001. A semi-empirical model at L-band and C-band for a soybean canopy with soil moisture inversion. IEEE Geoscience and Remote Sensing 39: 864-872

Gage, S. H., M. Colunga-Garcia, J. J. Helly, G. R. Safir, and A. Momin. 2001. Structural design for management and visualization of information for simulation models applied to a regional scale. Computers and Electronics in Agriculture 33: 77-84.

Gross, K. L. 2001. It’s a good time to get involved: Perspectives on the ESA, from Aldo Leopold to today. Bulletin of the Ecological Society of America 82: 112-118.

Hamilton, S. K., J. L. Tank, D. F. Raikow, W. M. Wollheim, B. J. Peterson, and J. R. Webster. 2001. Nitrogen uptake and transformation in a midwestern U.S. stream: A stable isotope enrichment study. Biogeochemistry 54: 297-340.

Knapp, A. K., and M. D. Smith. 2001. Variation among biomes in temporal dynamics of aboveground primary production. Science 291: 481-484.

Kosola, K. R., D. I. Dickmann, E. A. Paul, and D. Parry. 2001. Repeated insect defoliation effects on growth, nitrogen aquisition, carbohydrates and root demography. Oecologia 129: 65-74.

Lee, J. C., F. D. Menalled, and D. A. Landis. 2001. Refuge habitats modify impacr of insecticide disturbance on carabid beetle communities. Journal of Applied Ecology 38: 472-483.

Liu, J., F. B. Dazzo, O. Glagoleva, B. Yu, and A. Jain. 2001. CMEIAS: A computer-aided system for the image analysis of bacterial morphotypes in microbial communities. Microbial Ecology 41: 173-194.

Menalled, F., K. L. Gross, and M. Hammond. 2001. Weed aboveground and seedbank community responses to agricultural management systems. Ecological Applications 11: 1586-1601.

Mittelbach, G. G., C. S. Steiner, S. M. Scheiner, K. L. Gross, H. Reynolds, R. B. Waide, M. Willig, S. I. Dodson, and L. Gough. 2001. What is the observed relationship between species richness and productivity? Ecology 82: 2381-2396.

Mulholland, P. J., C. S. Fellows, J. L. Tank, N. B. Grimm, J. R. Webster, S. K. Hamilton, E. Marti, L. Ashkenas, W. B. Bowden, W. K. Dodds, W. H. McDowell, M. J. Paul, and B. J. Peterson. 2001. Inter-biome comparison of factors controlling stream metabolism. Freshwater Biology 46: 1503-1517.

Paul, E. A., H. P. Collins, and S. W. Leavitt. 2001. Dynamics of resistant soil carbon of Midwestern agricultural soils measured by naturally-occurring 14C abundance. Geoderma 104: 239-256.

Peterson, B. J., W. M. Wollheim, P. J. Mullholland, J. R. Webster, J. L. Meyer, J. L. Tank, E. Marti, W. B. Bowden, H. M. Valett, A. E. Hershey, W. B. McDowell, W. K. Dodds, S. K. Hamilton, S. Gregory, and D. D. Morrall. 2001. Control of nitrogen export from watersheds by headwater streams. Science 292: 86-90.

Raikow, D.F. and S.K. Hamilton. 2001. Bivalve diets in a midwestern US stream: A stable isotope enrichment study. Limnology and Oceanography 46: 514-522.

Sanchez, J. E., T. C. Willson, K. Kizilkaya, E. Parker, and R.R. Harwood. 2001. Enhancing the mineralizable nitrogen pool through substrate diversity in long-term cropping systems. Soil Science Society of America Journal 65: 1442-1447.

Suleiman, A. A., and J. T. Ritchie. 2001. Estimating saturated hydraulic conductivity from soil porosity. Transactions American Society Agricultural Engineering 44: 235-239.

Vinocur, M. G., and J. T. Ritchie. 2001. Maize leaf development biases caused by air-apex temperature differences. Agronomy Journal 93: 767-772.

Willson, T. C., E. A. Paul, and R. R. Harwood. 2001. Biologically active soil organic matter fractions in sustainable cropping systems. Applied Soil Ecology 16: 63-76.

Broughton, L. C., and K. L. Gross. 2000. Patterns of diversity in plant and soil microbial communities along a productivity gradient in a Michigan old field. Oecologia 125: 420-427.

Cavigelli, M.A. and G.P. Robertson. 2000. The functional significance of denitrifier community composition in a terrestrial ecosystem. Ecology 81: 1402-1414.

Collins, H. P., E. T. Elliott, K. Paustian, L. G. Bundy, W. A. Dick, D. R. Huggins, A. J. M. Smucker, and E. A. Paul. 2000. Soil carbon pools and fluxes in long-term corn belt agroecosystems. Soil Biology and Biochemistry 32:157-168

Daroub, S., F. J. Pierce, and B. G. Ellis. 2000. Phosphorus fractions and fate of phosphorus-33 in soils managed under plowing and no-tillage. Soil Science Society of America Journal 64: 170-176

Gough, L., C. W. Osenberg, K. L. Gross, and S. L. Collins. 2000. Fertilization effects on species density and primary productivity in herbaceous plant communities. Oikos 89: 428-439.

Gross, K. L., M. R. Willig, L. Gough, R. Inouye, and S. B. Cox. 2000. Patterns of species density and productivity at different spatial scales in herbaceous plant communities. Oikos 89:417-427.

He, C., S. B. Malcolm, K. A. Dahlberg, and B. Fu. 2000. A conceptual framework for integrating hydrological and biological indicators into watershed management. Landscape and Urban Planning 49: 25-34.

Klappenbach, J., J. M. Dunbar, and T. M. Schmidt. 2000. rRNA operon copy number reflects ecological strategies of bacteria. Applied and Environmental Microbiology 66: 1328-1333.

Landis, D. A., S. D. Wratten, and G. Gurr. 2000. Habitat management to conserve natural enemies of arthropod pests in agriculture. Annual Review Entomology 45: 175-201.

Phillips, C. J., D. Harris, S. L. Dollhopf, K. L. Gross, J. I. Prosser, and E. A. Paul. 2000. Effects of agronomic treatments on the structure and function of ammonia oxidizing communities. Applied Environmental Microbiology 66: 5410-5418.

Phillips, C. J., E. A. Paul, and J. I. Prosser. 2000. Quantitative analysis of ammonia oxidising bacteria using competitive PCR. FEMS Microbial Ecology 32: 167-175.

Rasse, D. P., and A. J. M. Smucker. 2000. Alfalfa root and shoot mulching interactions with soil hydraulic properties and aggregation. Soil Science Society of America Journal 64:725-731.

Rasse, D.P., J.T. Ritchie, W.R. Peterson, J. Wei, and A.J.M. Smucker. 2000. Rye cover crop and nitrogen fertilization effects on nitrate leaching in inbred maize fields. Journal of Environmental Quality 29:298-304.

Redman, A., and J. M. Scriber. 2000. Competition between gypsy moth, Lymantria dispar, and the northern tiger swallowtail, Papilip canadensis: interactions mediated by host plant chemistry, pathogens, and parasitoids. Oecologia 125: 218-228.

Robertson, G. P., E. A. Paul, and R. R. Harwood. 2000. Greenhouse gases in intensive agriculture: Contributions of individual gases to the radiative forcing of the atmosphere. Science 289:1922-1925.

Scheiner, S. M., S. B. Cox, M. Willig, G. G. Mittelbach, C. Osenberg, and M. Kaspari. 2000. Species richness, species-area curves and Simpson’s paradox. Evolutionary Ecology Research 2: 791-802.

Six, J., E. T. Elliott, and K. Paustian. 2000. Soil macroaggregate turnover and microaggregate formation: A mechanism for C sequestration under no-tillage agriculture. Soil Biology and Biochemistry 32: 2099-2103.

Six, J., E. T. Elliott, and K. Paustian. 2000. Soil structure and soil organic matter: II. A normalized stability index and the effect of mineralogy. Soil Science Society of America Journal 64:1042-1049.

Six, J., E. T. Elliott, K. Paustian, and C. Combrink. 2000. Soil structure and soil organic matter: I. Distribution of aggregate size classes and aggregate associated carbon. Soil Science Society of America Journal 64:681-689.

Six, J., R. Merckx, K. Kimpe, E. T. Elliott, and K. Paustian. 2000. A re-evaluation of the enriched labile soil organic matter fraction. European Journal of Soil Science 51: 283-293.

Stoyan, H., H. De-Polli, S. Bohm, G. P. Robertson, and E. A. Paul. 2000. Spatial variability of soil respiration and related soil properties at the plant scale. Plant and Soil 222:203-214.

Ambus, P., and G. P. Robertson. 1999. Fluxes of CH4 and N2O in aspen stands grown under ambient and twice-ambient CO2. Plant and Soil 209:1-8.

Bergsma, T. T., N. E. Ostrom, M. Emmons, and G. P. Robertson. 2001. Measuring simultaneous fluxes from soil of N2O and N2 in the field using the 15N-Gas "Nonequilibrium" technique. Environmental Science and Technology 35: 4307-4312.

Bergsma, T. T., Q. C. Bergsma, N. E. Ostrom, and G. P. Robertson. 1999. A heurstic model for the calculation of dinitrogen and nitrous oxide flux for 15N-labeled soil. Soil Science Society of America Journal 63:1709-1716.

Bruns, M. A., J. R. Stephen, G.A. Kowalchuk, J. I. Prosser, and E. A. Paul. 1999. Comparative diversity of ammonia-oxidizer 16S rRNA gene sequences in native, tilled, and successional soils. Applied and Environmental Microbiology 65: 2994-3000.

Calmon, M. A., W. D. Batchelor, J. W. Jones, J. T. Ritchie, K. J. Boote, and L. C. Hammond. 1999. Simulating soybean root growth and soil water extraction using a functional crop model. Transactions American Society Agricultural Engineering 42: 1868-1877.

Collins, H. P., R. L. Blevins, L. G. Bundy, D. R. Christenson, W. A. Dick, D. R. Huggins, and E. A. Paul. 1999. Soil carbon dynamics in corn-based agroecosystems: results from carbon-13 natural abundance. Soil Science Society of America Journal 63: 584-591

Foster, B. L. 1999. Establishment, competition and the distribution of native grasses among Michigan old-fields. Journal of Ecology 87: 476-489

Foster, B. L., and K. L. Gross. 1999. Temporal and spatial variability of woody plant establishment in Michigan old-fields. American Midland Naturalist 142: 229-243.

Gage, S. H., S. A. Isard, and M. Colunga-G. 1999. Ecological scaling of aerobiological processes. Agricultural and Forest Meteorology 97:249-261.

Garrison, M. V., W. D. Batchelor, R. S. Kanwar, and J. T. Ritchie. 1999. Evaluation of the CERES-Maize water and nitrogen balances under tile-drained conditions. Agricultural Systems 62: 189-199.

Henry, A., and K. R. Kosola. 1999. Root age and phosphorus effects on colonization of big bluestem (Andropogon geradii) by micorrhizal fungi. Soil Biology and Biochemistry 31:1657-1660.

Jame, Y. W., H. W. Cutforth, and J. T. Ritchie. 1999. Temperature response function for leaf appearance rate in wheat and corn. Canadian Journal of Plant Science 79: 1-10.

Kosola, K. R. 1999. Laparascopic sampling of roots of known age from an expandable-wall minirhizotron system. Agronomy Journal 91:876-879.

Kosola, K. R., and K. L. Gross. 1999. Resource competition and suppression of plants colonizing early successional old fields. Oecologia 118: 69-75.

Martinelli, L. A., M. C. Piccolo, A. R. Townsend, P. M. Vitousek, E. Cuevas, W. McDowell, G. P. Robertson, O. C. Santos, and K. Treseder. 1999. Nitrogen stable isotopic composition of leaves and soil: tropical versus temperate forests. Biogeochemistry 46: 45-65.

Menalled, F. D., P. C. Marino, S. H. Gage, and D. A. Landis. 1999. Does agricultural landscape structure affect parasitism and parasitoid diversity? Ecological Applications 9: 634-641.

Paul, E. A., D. Harris, H. P. Collins, U. Schulthess, and G. P. Robertson. 1999. Evolution of CO2 and soil carbon dynamics in biologically managed, row-crop agroecosystems. Applied Soil Ecology 11:53-65.

Rasse, D. P., A. J. M. Smucker, and O. Schabenberger. 1999. Modifications of soil nitrogen pools in response to alfalfa root systems and shoot mulch. Agronomy Journal 91:471-477.

Rasse, D. P., and A. J. M. Smucker. 1999. Tillage effects on soil nitrogen and plant biomass in a corn-alfalfa rotation. Journal of Environmental Quality 28:873-880.

Rasse, D.P., J.T. Ritchie, W.R. Peterson, T.L. Loudon, and E.C. Martin. 1999. Nitrogen management impacts on yield and nitrate leaching in inbred maize systems. Journal of Environmental Quality 28:1365-1371.

Ritchie, J. T., A. Gerakis, and A. Suleiman. 1999. Simple model to estimate field-measured soil water limits. Transactions American Society Agricultural Engineering 42: 1609-1614.

Scriber, J. M., K. Weir, D. Parry, and J. Deering. 1999. Using hybrid and backcross larvae of Papilio canadensis and Papilio glaucus to detect induced phytochemical resistance in hybrid poplar trees experimentally defoliated by gypsy moths. Entomologia Experimentalis et Applicata 91:233-236.

Sharov, A., B. C. Pijanowski, A. Liebold, and S. H. Gage. 1999. What affected the rate of gypsy moth (Lepidoptera: Lymantriidae) spread in Michigan: Winter temperature or forest susceptibility? Agriculture and Forest Entomology 1: 37-45.

Six, J., E. T. Elliott, and K. Paustian. 1999. Aggregate and soil organic matter dynamics under conventional and no-tillage systems. Soil Science Society of America Journal 63:1350-1358.

Tiedje, J. M., S. Asuming-Brempong, K. Nuesslein, T. L. Marsh, and S. J. Flynn. 1999. Opening the black box of soil microbial diversity. Applied Soil Ecology 13: 109-122.

Ambus, P., and G. P. Robertson. 1998. Automated near-continuous measurement of CO2 and N2O fluxes with a photoacoustic infra-red spectrometer and flow-through soil cover boxes. Soil Science Society of America Journal 62:394-400.

Bruns, M. A., M. A. Fries, J. M. Tiedje, and E. A. Paul. 1998. Functional gene hybridization patterns of terrestrial ammonia-oxidizing bacteria. Microbial Ecology 36: 293-302.

Buckley, D. H., J. R. Graber, and T. M. Schmidt. 1998. Phylogenetic analysis of nonthermiphilic members of the Kingdom Crenarachaeota and their diversity and abundance in soils. Applied and Environmental Microbiology 64: 4333-4339.

Colunga-Garcia, M., and S. H. Gage. 1998. Arrival, establishment, and habitat utilization of the exotic coccinellid Harmonia axyridis Pallas Coleoptera in a Michigan landscape. Environmental Entomology 27: 1574-1580

Foster, B. L., and K. L. Gross. 1998. Species richness in a successional grassland: Effects of nitrogen enrichment and plant litter. Ecology 79: 2593-2602.

Gomez, P., and J. Gurevitch. 1998. Weed community responses in a corn-soybean intercrop. Applied Vegetation Science 1: 281-288.

Haas, L., and J. M. Scriber. 1998. Phylloplane sterilization with bleach does not reduce Btk toxicity for Papilio glaucus larvae (Lepidoptera: papilionidae). The Great Lakes Entomologist 31: 49-57.

Hedin, L. O., J. C. von Fischer, N. E. Ostrom, M. G. Brown, and G. P. Robertson. 1998. Thermodynamic constraints on nitrogen transformation and other biogeochemical processes at soil-stream interfaces. Ecology 79: 684-703.

Huberty, L. E., K. L. Gross, and C. J. Miller. 1998. Effects of nitrogen addition on success ional dynamics and species diversity in Michigan old-fields. Journal of Ecology 86:794-803.

Jones, M. E., R. R. Harwood, N. C. Dehne, J. Smeenk, and E. Parker. 1998. Enhancing soil nitrogen mineralization and corn yield with overseeded cover crops. Journal of Soil and Water Conservation 53: 253-257.

Kellndorfer, J. M., L. E. Pierce, M. C. Dobson, and F. T. Ulaby. 1998. Toward consistant regional to global scale vegetation characterization using orbital SAR systems. IEEE Trans. Geosci. Remote Sensing 36: 1396-1411.

Kemner, K. M., W. Yun, Z. Cai, B. Lai, H. R. Lee, D. G. Lengnini, W. Rodriguez, J. Jastrow, R. M. Miller, S. T. Pratt, M. A. Schnnegurt, C. F. Kulpa, and A. J. M. Smucker. 1998. Using X-ray microprobes for environment research. Proceedings of the International Society for Optical Engineering 3449: 45-54.

Lele, S., M. Taper, and S. H. Gage. 1998. Statistical analysis of population dynamics in space and time using estimating functions. Ecology 79: 1489-1502.

Marino, P. C., and K. L. Gross. 1998. Competitive effects of conspecific and herbaceous (weeds) plants on growth and branch architecture of Populus x euramericana c.v. Eugenei. Canadian Journal of Forest Research 28: 359-367.

Ostrom, N. E., K. E. Knoke, L. O. Hedin, G. P. Robertson, and A. J. M. Smucker. 1998. Temporal trends in nitrogen isotope values of nitrate leaching from an agricultural soil. Chemical Geology 146: 219-227.

Rasse, D. P., and A. J. M. Smucker. 1998. Root recolonization of previous root channels in corn and alfalfa rotations. Plant and Soil 204:203-212.

Stornaiuolo, S., B. Basso, and J. T. Ritchie. 1998. Influence of nitrogen fertilization on nitrate concentration in maize plants. Rivista Agronomia 32: 155-160.

Yang, D., B. C. Pijanowski, and S. H. Gage. 1998. Analysis of gypsy moth (Lepidoptera: Lymantriidae) population dynamics in Michigan using geographic information systems. Environmental Entomology 27: 842-852.

Clark, M. S., S. H. Gage, and J. R. Spence. 1997. Habitats and management associated with common ground beetles Coleoptera: Carabidae in a Michigan agricultural landscape. Environmental Entomology 26: 519-527

Colunga-Garcia, M., S. H. Gage, and D. A. Landis. 1997. Response of all assemblage of Coccinellidae (Coleoptera) to a diverse agricultural landscape. Environmental Entomology 26: 797-804

Foster, B. L., and K. L. Gross. 1997. Partitioning the effects of plant biomass and litter on Andropogon gerardi in old-field vegetation. Ecology 78: 2091-2104.

Harris, D., R. P. Voroney, and E. A. Paul. 1997. Measurement of microbial biomass C:N ratio by chloroform fumigation incubation. Canadian Journal of Soil Science 77: 507-514.

Johnson, L. B., and S. H. Gage. 1997. Landscape approaches to the analysis of aquatic ecosystems. Freshwater Biology 37: 113-132.

Leavitt, S. W., E. A. Paul, E. Pendall, P. J. Pinter, and B. A. Kimball. 1997. Field variability of carbon isotopes in soil organic matter pool sizes and fluxes. Nuclear Instrument Methods B 123: 451-454.

Marino, P. C., K. L. Gross, and D. A. Landis. 1997. Weed seed loss due to predation in Michigan maize fields. Agriculture Ecosystems and the Environment 66: 189-196.

Ostrom, P. H., M. Colunga, and S. H. Gage. 1997. Establishing pathways of energy flow for insect predators using stable isotope ratios: field and laboratory evidence. Oecologia 109: 108-113.

Rettig, J. E., R. C. Fuller, A. L. Corbett, and T. Getty. 1997. Fluctuating asymmetry as an indicator of ecological stress. Oikos 80: 123-127.

Robertson, G. P., K. M. Klingensmith, M. J. Klug, E. A. Paul, J. C. Crum, and B. G. Ellis. 1997. Soil resources, microbial activity, and primary production across an agricultural ecosystem. Ecological Applications 7: 158-170.

Santos, D., S. L. S. Murphy, H. Taubner, A. J. M. Smucker, and R. Horn. 1997. Uniform separation of concentric surface layers from soil aggregates. Soil Science Society America Journal 61: 720-724.

Aiken, R. M., and A. J. M. Smucker. 1996. Root system regulation of whole plant growth. Annual Review Phytopathology 34: 325-347.

Eash, N. S., P. D. Stahl, T. B. Parkin, and D. L. Karlen. 1996. A simplified method for extraction of ergosterol from soil. Soil Science Society of America Journal 60: 468-471.

Gross, K. L., and C. E. Pake. 1996. Recommendations and executive summary of the ESA committee on the future of long-term ecological data (FLED). Bull. Ecol. Soc. Amer. 77: 192-196.

Horwath, W. R., E. A. Paul, D. Harris, J. Norton, L. Jagger, and K. A. Horton. 1996. Defining a realistic control for the chloroform fumigation incubation method using microscopic counting and 14C substrates. Canadian Journal of Soil Science 76: 459-467.

Leavitt, S. W., E. A. Paul, A. Galadima, F. S. Nakayama, S. R. Danzer, H. Johonson, and B. A. Kimball. 1996. Carbon isotopes and carbon turnover in cotton and wheat FACE experiments. Plant and Soil 187: 147-155.

Marino, P. C., and D. A. Landis. 1996. Effect of landscape structure on parasitoid diversity and parasitism in agroecosystems. Ecological Applications 6: 276-284.

Stahl, P. D., and M. J. Klug. 1996. Characterization and differentiation of filamentous fungi based on fatty acid composition. Applied and Environmental Microbiology 62: 4136-4146.

Stahl, P. D., and T. B. Parkin. 1996. Relationship of soil ergosterol content and fungal biomass. Soil Biology and Biochemistry 28: 847-855.

Thorn, R. G., C. A. Reddy, D. Harris, and E. A. Paul. 1996. Isolation of saprophytic basidiomycetes from field and forest soils. Applied and Environmental Microbiology 62: 4288-4292.

Zhou, J., M. A. Bruns, and J. M. Tiedje. 1996. DNA recovery from soils of diverse composition. Applied Environmental Microbiology 62: 316-322.

Bossart, J. L., and J. M. Scriber. 1995. Maintenance of ecologically significant genetic variation in the tiger swallowtail butterfly through differential selection and gene flow. Evolution 49: 1163-1171.

Cavigelli, M. A., G. P. Robertson, and M. J. Klug. 1995. Fatty acid methyl ester (FAME) profiles as measures of soil microbial community structure. Plant and Soil 170: 99-113.

Gross, K. L., K. S. Pregitzer, and A. J. Burton. 1995. Spatial variation in nitrogen availability in three successional plant communities. Journal of Ecology 83: 357-367.

Haack, S. K., H. Garchow, M. J. Klug, and L. J. Forney. 1995. Analysis of factors affecting the accuracy, reproducibility, and interpretation of microbial community carbon source utilization patterns. Applied and Environmental Microbiology 61: 1458-1468.

Ka, J. O., P. Burauel, J. A. Bronson, W. E. Holben, and J. M. Tiedje. 1995. DNA probe analysis of microbial community selected in field by long-term 2,4-D application. Soil Science Society of America Journal 59: 1581-1587.

Paustian, K., E. T. Elliot, H. P. Collins, C. V. Cole, and E. A. Paul. 1995. Use of a network of long-term experiments in North America for analysis of soil carbon dynamics and global change. Australian Journal of Experimental Agriculture 35: 929-939.

Pietola, L. M., and A. J. M. Smucker. 1995. Fine root dynamics of alfalfa after multiple cuttings and during a late invasion by weeds. Agronomy Journal 87: 1161-1169.

Robertson, G. P., and D. W. Freckman. 1995. The spatial distribution of nematode trophic groups across a cultivated ecosystem. Ecology 76: 1425-1432.

Ayres, M. P., and J. M. Scriber. 1994. Local adaptations to regional climates in Papillo Canadensis Lepidoptera: Papollionidae. Ecological Monographs 64: 465-482.

Elliott, E. T., K. Paustian, H. P. Collins, E. A. Paul, C. V. Cole, I. C. Burke, R. L. Blevins, D. J. Lyon, W. W. Frye, A. D. Halvorson, D. R. Huggins, R. F. Turco, M. Hickman, C. A. Monz, and S. D. Frey. 1994. Terrestrial carbon pools and dynamics: preliminary data from the corn belt and Great Plains. Soil Science Society of America Special Publication 35: 179-191.

Haack, S. K., H. Garchow, D. A. Odelson, L. J. Forney, and M. J. Klug. 1994. Accuracy, reproducibility and interpretation of fatty acid methyl ester profiles of model bacterial communities. Applied and Environmental Microbiology 60: 2483-2493.

Harris, D., and E. A. Paul. 1994. Measurement of microbial growth rates in soil. Applied Soil Ecology 1: 277-290.

Harris, G. H., O. B. Hesterman, E. A. Paul, S. E. Peters, and R. R. Janke. 1994. Fate of legume and fertilizer 15N in a long-term cropping systems experiment. Agronomy Journal 86: 910-915.

Hedin, L. O., and M. G. Brown. 1994. Watershed-level coupling of nitrogen and sulfur in heterogeneous landscape. Verh. Internat. Verein. Limnol. 25: 1477-1482.

Horwath, W. R., K. S. Pregitzer, and E. A. Paul. 1994. 14C allocation in tree soil-systems. Tree Physiology 14: 1163-1176.

Ka, J. O. and J. M. Tiedje. 1994. Integration and excision of a 2,4-Dichlorophenoxyacetate acid-degradative plasmid in alcaligenes paradoxus and evidence of its natural intergeneric transfer. Journal Bacteriology 176: 5284-5289.

Ka, J. O., W. E. Holben, and J. M. Tiedje. 1994. Analysis of competition in soil among 2,4-D degrading bacteria. Applied and Environmental Microbiology 60: 1121-1128.

Ka, J. O., W. E. Holben, and J. M. Tiedje. 1994. Genetic and phenotypic diversity of 2,4-D degrading bacteria isolated from 2,4-D treated field soils. Applied and Environmental Microbiology 60: 1106-1115.

Ka, J. O., W. E. Holben, and J. M. Tiedje. 1994. Use of gene probes to aid recovery and identification of functionally dominant 2,4-D degrading populations in soil. Applied and Environmental Microbiology 60: 1116-1120.

Petersen, S. O., and M. J. Klug. 1994. Effects of sieving, storage and incubation temperature on the phospholipid fatty acid profile of a soil microbial community. Appl. and Environ. Microbiol. 60: 2421-2430.

Freckman, D. W., and C. H. Ettema. 1993. Assessing nematode communities in agroecosystems of varying human intervention. Agriculture, Ecosystems and Environment 45: 239-261.

Gross, K. L., A. Peters, and K. S. Pregitzer. 1993. Fine root growth and demographic responses to nutrient patches in four old-field successional species. Oecologia 95: 61-64.

Mokma, D. L., and J. A. Doolittle. 1993. Mapping some loamy alfisols in southwestern Michigan using ground-penetrating radar. Soil Survey Horizons 34: 71-77.

Robertson, G. P., J. R. Crum, and B. G. Ellis. 1993. The spatial variability of soil resources following long-term disturbance. Oecologia 96: 451-456.

Smucker, A. J. M. 1993. Soil environmental modifications of root dynamics and measurement. Annual Review Phytopathology 31: 191-216.

Gross, K. L., D. Maruca, and K. S. Pregitzer. 1992. Seedling growth and root morphology of plants with different life histories. New Phytologist 120: 535-542.

Holben, W. E., B. M. Schroeder, V. G. M. Calabrese, R. H. Olsen, J. K. Kukor, V. O. Biederbeck, A. E. Smith, and J. M. Tiedje. 1992. Gene probe analysis of soil microbial populations selected by amendment with 2,4-dichlorophenoxyacetic acid (2,4-D). Applied Environment Microbiology 58: 3941-3948.

Horwath, W. R., E. A. Paul, and K. S. Pregitzer. 1992. Injection of N-15 into trees to study nitrogen cycling in soil. Soil Science Society of America Journal 56: 316-319.

Majdi, H., A. J. M. Smucker, and H. Persson. 1992. A comparison between minirhizotron and monolith sampling methods for measuring root growth of maize (Zea mays, L.). Plant and Soil 147: 127-134.

Maredia, K. M., S. H. Gage, D. A. Landis, and M. J. Scriber. 1992. Habitat use patterns by the seven-spotted lady beetle (Coleoptera: Coccinellodae) in a diverse agricultural landscape. Biological Control 2: 159-165.

Maredia, K. M., S. H. Gage, D. A. Landis, and T. M. Wirth. 1992. Visual response of Cocinella septempunctata (L.), Hippodamia parenthesis (Say) (Coleoptera: Coccinellidae), and Chrysioerua carnea (Stephens) (Neruoptera: Chrysopidae) to colors. Biological Control 2: 253-256.

Maredia, K. M., S. H. Gage, D. L. Landis, and T. M. Wirth. 1992. Ecological observations on predatory Coccinellidae Coleoptera in southwestern Michigan. Great Lakes Entomologist 25: 265-270.

Paustian, K., W. J. Parton, and J. Persson. 1992. Modeling soil organic matter in organic-amended and nitrogen-fertilized long-term plots. Soil Science Society of America Journal 56: 476-488.

Scriber, J. M., J. L. Bossart, and D. M. Snider. 1992. Diagnostic alleles from electrophoresis distinguish two noctuid pest species, Hydraecia immanis and H. micacea Lepidoptera: Noctuidae. Great Lakes Entomologist 25: 91-98.

Smucker, A. J. M., and R. M. Aiken. 1992. Dynamic root responses to water deficits. Soil Science 154: 281-289.

Sticklen, J., and R. Tufankji. 1992. Utilizing a functional approach for modeling biological systems. Mathematical and Computer Modeling 16: 145-160.

Gross, K. L. 1990. A comparison of methods for estimating soil seed banks. Journal of Ecology 78: 1079-1093.

Smucker, A. J. M. 1990. Quantification of root dynamics in agroecological systems. Remote Sensing Reviews 5: 237-248.

Gross, K. L., and K. A. Renner. 1989. A new method for estimating seed numbers in the soil. Weed Science 37: 836-839.

Paul, E. A., and G. P. Robertson. 1989. Ecology and the agricultural sciences: a false dichotomy. Ecology 70: 1594-1597.