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Dr. Loretta Johnson
Phone: 785-532-6921 Email: johnson@ksu.edu Address: 116 Ackert Hall, Division of Biology, Kansas State University, Manhattan, KS 66506 Interests: Plant/ecosystem ecology Personnel Home Page: Publication
1.
McKinley, D.C., M.D. Norris, L.C. Johnson and J.M. Blair.. 2008. Biogeochemical changes associated with Juniperus virginia encroachment into grasslands.
Ecological Studies Vol. 196, Western North American Juniperus communities: A dynamic vegetation type 170-
187.
2.
Norris, M.D., J.M. Blair and L.C. Johnson. 2007. Altered ecosystem nitrogen dynamics as a consequence of land cover change in tallgrass prairie.
American Midland Naturalist 158:
432-
445.
3.
Jumpponen, A., J. Trowbridge, K.G. Mandyam, and L. C. Johnson. 2005. Nitrogen enrichment causes minimal changes in arbuscular mycorrhizal colonization but shifts community composition - evidence from rDNA data.
Biology and Fertility of Soils 41:
217-
224.
4.
Craine, J., B. Lee, L. Johnson, W. Bond, and W.D. Williams. 2005. Roots of the world.
Ecology 86:
12-
19.
5.
Jumpponen, A., and L.C. Johnson. 2005. Can rDNA analyses of diverse fungal communities in soil and roots
detect effects of environmental manipulations--a case study from
tallgrass prairie.
Mycologia 97:
1177-
1194.
6.
Smith, D. L., and L. C. Johnson. 2004. Vegetation-mediated changes in microclimate reduce soil respiration as woodlands expand into grasslands.
Ecology 85:
3348-
3361.
7.
Smith, D. L., and L. C. Johnson. 2003. Expansion of Juniperus in the Great Plains: Changes in soil organic carbon dynamics.
Global Biogeochemical Cycles 17:
1062-
.
8.
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.
9.
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.
10.
Hoch, G. A., J. M. Briggs, and L. C. Johnson. 2002. Assessing the rate, mechanism and consequences of conversion of tallgrass prairie to Juniperus virginiana forest.
Ecosystems 5:
578-
586.
11.
Johnson, L. C., and J. R. Matchett. 2001. Fire and grazing regulate belowground processes in tallgrass prairie.
Ecology 82:
3377-
3389.
12.
Norris, M. D., J. M. Blair, L. C. Johnson, and R. B. McKane. 2001. Assessing changes in biomass, productivity, and C and N stores following Juniperus virginiana forest expansion into tallgrass prairie.
Canadian Journal of Forest Research 31:
1940-
1946.
13.
Norris, M. D., J. M. Blair, and L. C. Johnson. 2001. Land cover change in eastern Kansas: litter dynamics of closed-canopy eastern redcedar forests in tallgrass prairie.
Canadian Journal of Botany 79:
214-
222.
14.
Hooper, D. U., and L. C. Johnson. 1999. Nitrogen limitation in dryland ecosystems: responses to temporal and geographical variation in precipitation.
Biogeochemistry 46:
247-
293.
15.
Knapp, A. K., J. M. Blair, J. M. Briggs, S. L. Collins, D. C. Hartnett, L. C. Johnson, and E. G. Towne. 1999. The keystone role of bison in North American tallgrass prairie.
BioScience 49:
39-
50.
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