There is an opening for a postdoctoral fellow at the University of Nebraska in population biology with a starting date of June 2008.
I am interested in hosting a postdoc working either of the following topics. 1. Oak masting a. California. Walt Koenig and I have collected a dataset of acorn production of more than 1000 individual trees for 9 species at 20 sites ranging from San Diego to Redding collected from 1994 on. b. Minnesota. At Cedar Creek NHA, we have collected a dataset of individual acorn production of bur and pin oak evenly distributed in savanna/oak forest burned at different intervals from 1995 on. Check the following papers for ways that this data can be used: Knops, J.M.H., W.D. Koenig & W. Carmen. 2007. A negative correlation between growth and reproduction does not imply a tradeoff between growth and reproduction in California oaks. Proceedings of the National Academy of Sciences 104: in press. Koenig, W.D. & J.M.H. Knops. 2001. Seed-crop size and eruptions of North American boreal seed-eating birds. Journal of Animal Ecology 70: 609-620. Koenig, W.D. & J.M.H. Knops. 1999. Patterns of annual seed production by Northern Hemisphere trees: A global perspective. American Naturalist 155: 59-69. 2. Old field succession at Cedar Creek NHA in Minnesota As part of the Cedar Creek LTER, we have a dataset of plant cover estimates of 2100 permanent plots sampled six times since 1983, for plant cover, soil C and N, and annually at the field level for insect abundances. Knops, J.M.H. 2006. Fire does not alter vegetation in infertile prairie. Oecologia 150: 477-483. Grace, J. B., T. M. Anderson, M. D. Smith, E. Seabloom, S. J. Andelman, G. Meche, E. Weiher, L. K. Allain, H. Jutila, M. Sankaran, J. Knops, M. Ritchie & M. R. Willig. 2007. Does species diversity limit productivity in natural grassland communities? Ecology Letters 10: 680-689. Haddad, N.M., D. Tilman & J.M.H. Knops. 2001. Long-term oscillations in grassland productivity induced by drought. Ecology Letters 5: 110-120. Knops, J.M.H. & D. Tilman. 2000. Dynamics of soil nitrogen and carbon accumulation for 61 years after agricultural abandonment. Ecology, 81: 88- 98. Haddad, N.M., D. Tilman, J. Haarstad, M. Ritchie & J.M.H. Knops. 2001. Contrasting effects of plant diversity and composition on insect communities: a field experiment. American Naturalist 158: 17-35. Please contact me ASAP if you have an interest. Johannes (Jean) Knops School of Biological Sciences University of Nebraska 348 Manter Hall Lincoln, NE 68588 phone (402) 310-3904 [EMAIL PROTECTED]
