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Dr. Jay Ham
Phone: 970-491-4112 Email: jay.ham@colostate.edu Address: Soil & Crop Sciences, Colorado State University, Fort Collins, CO 80523 Interests: Micrometeorology Personnel Home Page: Publication
1.
Ham, J. M., and E. J. Benson. 2004. On the construction and calibration of dual probe heat capacity sensors.
Soil Science Society of America Journal 68:
1185-
1190.
2.
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 rates in streams.
Oecologia 140:
458-
467.
3.
Callaham, M. A., Jr., J. M. Blair, T. C. Todd, D. J. Kitchen, and M. R. Whiles. 2003. Effects of fire, mowing and fertilization effects on density and biomass of macroinvertebrates in North American tallgrass prairie soils.
Soil Biology & Biochemistry 35:
1079-
1093.
4.
Webster, J. R., P. J. Mulholland, J. L. Tank, H. M. Valett, W. K. 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. H. 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.
5.
Ham, J. M., and J. L. Heilman. 2003. Experimental test of density corrections on CO2 flux as measured using open-path eddy covariance.
Agronomy Journal 95:
1393-
1403.
6.
Bremer, D. J., and J. M. Ham. 2002. Measurement and modeling of soil CO2 flux in a temperate grassland under mowed and burned regimes.
Ecological Applications 12:
1318-
1328.
7.
Callaham, M. A. Jr., M. R. Whiles, and J. M. Blair. 2002. Annual fire, mowing and fertilization effects on two cicadas (Homoptera:Cicadidae) in tallgrass prairie.
American Midland Naturalist 148:
90-
101.
8.
Dodds, W. K., A. J. López, W. B. Bowden, S. Gregory, N. B. G rimm, S. K. Hamilton, A. E. Hershey, E., Marti, W. B. McDowell, J. L. Meyer, D. Morrall, P. J. Mulholland, B. J. Peterson, J. L. Tank, D. C. J. van der Hoek, J. R. Webster, and W. Wollheim.. 2002. N uptake as a function of concentration in streams.
Journal of the North American Benthological Society 21:
206-
220.
9.
Findlay, S., J. Tank, S. Dye, H. M. Vallett, P. Mulholland, W. H. McDowell, S. Johnson, S. K. Hamilton, J. 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.
10.
Mulholland, P. J., J. L. Tank, J. R. Webster, W. B. Bowden, W. K. Dodds, S. V. Gregory, N. B. Grimm, S. K. Hamilton, S. L. Johnson, E. Mart¡, W. H. McDowell, J. Merriam, J. L. Meyer, B. J. Peterson, H. M. Valett, and W. M. Wollheim. 2002. Can uptake length 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.
11.
Callaham, M. A. Jr., J. M. Blair, and P. F. Hendrix. 2001. Different behavioral patterns of the earthworms Octolasion tyrtaeum and Diplocardia spp . in tallgrass prairie soils: potential influences on plant growth.
Biology and Fertility of Soils 34:
49-
56.
12.
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.
13.
Peterson, B. J., W. M. Wollheim, P. J. Mulholland, J. R. Webster, J. L. Meyer, J. L. Tank, E. Marti, W. B. Bowden, H. M. Valett, A. E. Hershey, W. H. 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.
14.
Whiles, M. R., M. A. Callaham Jr., C. K. Meyer, B. L. Brock, and R. E. Charlton. 2001. Emergence of periodical cicadas (Magicicada cassini ) from a Kansas riparian forest: densities, biomass and nitrogen flux.
American Midland Naturalist 145:
176-
187.
15.
Callaham, M. A. 2000. Ecology of belowground invertebrates in tallgrass prairie.
16.
Callaham, M. A. Jr., M. R. Whiles, C. K. Meyer, B. L. Brock, R. E. Charlton. 2000. Feeding ecology and emergence production of annual cicadas (Homoptera: Cicadidae) in tallgrass prairie.
Oecologia 123:
535-
542.
17.
Blair, J. M., T. C. Todd, and M. A. Callaham Jr. 2000. Responses of grassland soil invertebrates to natural and anthropogenic disturbances.
Invertebrates as Webmasters in Ecosystems 43-
71.
18.
Bremer, D. J., and J. M. Ham. 1999. Effect of spring burning on the surface energy balance in a tallgrass prairie.
Agricultural and Forest Meteorology 97:
43-
54.
19.
Callaham, M. A. Jr., and J. M. Blair. 1999. Influence of differing land management on the invasion of North American tallgrass prairie soils by European earthworms.
Pedobiologia 43:
507-
512.
20.
Gibson, D. J., J. Connolly, D. C. Hartnett, and J. D. Weidenhamer. 1999. Designs for greenhouse studies of interactions between plants.
Journal of Ecology 87:
1-
16.
21.
Knapp, A. K., N. Bargman, N., L. A. Maragni, C. A. McAllister, D. J. Bremer, J. M. Ham, and C. E. Owensby. 1999. Elevated CO2 and leaf longevity in the C4 grassland dominant Andropogon gerardii.
International Journal of Plant Sciences 160:
1057-
1061.
22.
Owensby, C. E., J. M. Ham, A. K. Knapp, and L. M. Auen. 1999. Biomass production and species composition change in a tallgrass prairie ecosystem after long-term exposure to elevated atmospheric CO2.
Global Change Biology 5:
497-
506.
23.
Bremer, D. J., J. M. Ham, C. E. Owensby, and A. K. Knapp. 1998. Responses of soil respiration to clipping and grazing in a tallgrass prairie.
Journal of Environmental Quality 27:
1539-
1548.
24.
Ham, J. M., and A. K. Knapp. 1998. Fluxes of CO2, water vapor, and energy from a prairie ecosystem during the seasonal transition from carbon sink to carbon source.
Agricultural and Forest Meteorology 89:
1-
14.
25.
Hamerlynck, E. P., C. A. McAllister, A. K. Knapp, J. M. Ham, and C. E. Owensby. 1997. Photosynthetic gas exchange and water relations responses of three tallgrass prairie species to elevated carbon dioxide and moderate drought.
International Journal of Plant Science 158:
608-
616.
26.
Owensby, C. E., J. M. Ham, A. K. Knapp, D. Bremer, and L. M. Auen. 1997. Water vapor fluxes and their impact under elevated CO2 in a C4 tallgrass prairie.
Global Change Biology 3:
189-
195.
27.
Hamerlynck, E. P., and A. K. Knapp. 1996. Early season cuticular conductance and gas exchange in two oaks near the western edge of their range.
Trees 10:
403-
409.
28.
Hamerlynck, E. P., and A. K. Knapp. 1996. Photosynthetic and stomatal responses to high temperature and light in two oaks at the western limit of their range.
Tree Physiology 16:
557-
565.
29.
Knapp, A. K., E. P. Hamerlynck, J. M. Ham, and C. E. Owensby. 1996. Responses in stomatal conductance to elevated CO2 in 12 grassland species that differ in growth form.
Vegetatio 125:
31-
41.
30.
Owensby, C. E., J. M. Ham, A. K. Knapp, C. W. Rice, P. I. Coyne, and L. M. Auen. 1996. Ecosystem level responses of tallgrass prairie to elevated CO2.
Carbon Dioxide and Terrestrial Ecosystems 147-
162.
31.
Hamerlynck, E. P., and A. K. Knapp. 1995. Environmental and physiological factors influencing the distribution of oaks near the edge of their range.
Proceedings of the 14th North America Prairie Conference 17-
20.
32.
Hamerlynck, E. P.. 1995. The ecophysiology of bur oak (Quercus marocarpa Michx.) and chinquapin oak (Quercus muehlenbergii Emglm.) at the western limit of their distribution.
33.
Kratz, T. K., J. J. Magnuson, P. Bayley, B. J. Benson, C. W. Berish, C. S. Bledsoe, E. R. Blood, C. J. Bowser, S. R. Carpenter, S. R., G. L. Cunningham, R. Dahlgren, T. M. Frost, J. C. Halfpenny, J. Hansen, D. Heisey, R. S. Inouye, D. W. Kaufman, A. McKee, and J. A. Yarie. 1995. Comparison of spatial and temporal variability of ecological parameters from 12 North American ecosystems.
Evaluating And Monitoring The Health Of Large-Scale Ecosystems, NATO ASI series, Vol I 28 359-
383.
34.
Senock, R. S., and J. M. Ham. 1995. Measurements of water use by prairie grasses with heat balance sap flow gauges.
Journal of Range Management 48:
150-
158.
35.
Hamerlynck, E. P., and A. K. Knapp. 1994. Leaf-level responses to light and temperature in two co-occurring Quercus (Fagaceae ) species: implications for tree distribution patterns.
Forest Ecology and Management 68:
149-
159.
36.
Hamerlynck, E. P., and A. K. Knapp.. 1994. Stomatal responses to variable sunlight in Bur Oak (Quercus macrocarpa Michx.) leaves with different photosynthetic capacities.
International Journal of Plant Science 155:
583-
587.
37.
Knapp, A. K., M. Cocke, E. P. Hamerlynck, and C. E. Owensby. 1994. Effect of elevated C02 on stomatal density and distribution in a C4 grass and a C3 forb under field conditions.
Annals of Botany 74:
595-
599.
38.
Knapp, A. K., J. T. Fahnestock, S. P. Hamburg, L. J. Statland, T. R. Seastedt, and D. S. Schimel. 1993. Landscape patterns in soil-water relations and primary production in tallgrass prairie.
Ecology 74:
549-
560.
39.
Owensby, C. E., P. I. Coyne, J. M. Ham, L. M. Auen, and A. K. Knapp. 1993. Biomass production in a tallgrass prairie ecosystem exposed to ambient and elevated CO2.
Ecological Applications 3:
644-
653.
40.
Gale, W. J., M. B. Kirkham, E. T. Kanemasu, and C. E. Owensby. 1990. Net carbon dioxide exchange in canopies of burned and unburned tallgrass prairie.
Theoretical and Applied Climatology 42:
237-
244.
41.
James, S. W., and M. R. Cunningham. 1989. Feeding ecology of some earthworms in Kansas tallgrass prairie.
The American Midland Naturalist 121:
78-
83.
42.
Wiedenhamer, J. D., D. C. Hartnett, and J. T. Romeo. 1989. Density dependent phytotoxicity: distinguishing resource competition and allelopathic interference in plants.
Journal of Applied Ecology 26:
613-
624.
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