个人简介

B.Sc. Chatham College, Pittsburgh, PA M.Sc. Tufts University, Medford, MA Ph.D. Indiana University, Bloomington, IN Miller Post-doctoral Fellow, University of California, Berkeley

研究领域

Ecology, Evolution

Populations of western tent caterpillars in the Lower Mainland of British Columbia fluctuate with peaks occurring every 6 to 11 years. We have been studying the characteristics associated with these fluctuations and in particular the role of infection by nucleopolyhedrovirus in the host population dynamics. We are embarking on a genetic study of populations to determine the role of gene flow in maintaining synchrony among populations. Recent success in the biological control of diffuse knapweed has stimulated interest in how the various biological control agents interact and if the last insect to be widely established, a weevil, would have been sufficient on its own. We have established experimental cages in areas near Okanagan Falls in which diffuse knapweed has reinvaded following fire. Our goal is to be able to better predict what makes successful biological control agents. Populations of cabbage loopers in vegetable green houses sometimes become resistant to a commonly used microbial control, Dipel or Bacillus thuringiensis. We have been studying the cost of resistance, the genetic control of resistance, and the mechanisms that influence resistance to understand coevolutionary interactions between the disease and the host and to make recommendations to growers for resistance management.

近期论文

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Caron, V. Gillespie, D. and Myers, J.H. 2008. Fitness related traits in a fly parasitoid are mediated by effects of plants on its host. J. Applied Entomology 132:663-667 Franklin, M.T. and Myers, J.H. 2008. Refuges in reverse: the spread of Bacillus thuringiensis resistance to unselected greenhouse populations of cabbage loopers Trichoplusia ni. Agricultural and Forest Entomology 10:119-127 Myers, J.H. 2008. One agent is usually sufficient for successful biological control of weeds. In Proc. XII Intern. Symp. Biological Control of Weeds CAB International, Wallingford, UK Denoth, M. and J.H. Myers. 2007. Competition between Lythrum salicaria and a rare species: combining evidence from experiments and long-term monitoring. Plant Ecology in press Link » Erlandson, M., Newhouse, S., Moore, K., Janmaat, A. Myers, J. and D. Theilman. 2007. Characterization of baculovirus isolates from Trichoplusia ni populations from vegetable greenhouses. Biological Control 41: 256-263 Link » Myers, J.H. 2007. How many and what kind of biological control agents: a case study with diffuse knapweed. Biological Control: a Global Perspective CABI International pp.70-79 Link » Smith, J.N.M, Myers-Smith, I.H., Myers, J.H. 2007. Tips for effective communication in ecology. Ecology 101. Bulletin of the Ecological Link » Wang, P. Zhao, J-Z. Rodrigo-Simon, A. Kain, W. Janmaat, A.F., Shelton, A.M. Ferre, J. and Myers, J.H. 2007. Resistance to Bacillus thuringiensis Toxin Cry1Ac in a greenhouse population of the Cabbage Looper, Trichoplusia ni. Applied and Environmental Microbiology 73: 1199-1207 Ericsson, J.D., J. Todd Kabaluk, Mark S. Goettel, Judith H. Myers. 2006. Spinosyns interact synergistically with the insect pathogen Metarhizium anisopliae against lined click beetle larvae, Agriotes lineatus. J. Econ. Entomol. (In Press 9/25/06) Link » Janmaat AF, Myers JH. 2006. The influences of host plant and genetic resistance to Bacillus thuringiensis on trade-offs between offspring number and growth rate in cabbage loopers, Trichoplusia ni. Ecological Entomology 31: 172-178 Link » Janmaat, A. and Myers, J.H. 2006. Host plants effect the expression of resistance to Bacillus thuringiensis in Trichoplusia ni (Hubner): an important factor in resistance evolution. J. Evol. Biol. 20:62-69 Link » Dennoth, M. and J.H. Myers. 2005. Variable success of biological control of Lythrum salicaria in British Columbia. Biological Control 32:269-279 Link » Janmaat, A.F. and J.H. Myers. 2005. The cost of resistance to Bacillus thuringiensis varies with the host plant of Trichoplusia ni. Proc. Royal Soc. London B. 272:1031-38 Link » Myers, J.H. 2005. Lest we forget: Women entomologists, population cycles and biological control – Legacies from the past with importance to the future. Bull. Canadian Entomol. Soc. 37: 4-9 Link » Cory, J.S. and JH Myers. 2004. Adaptation in an insect-host plant-pathogen interaction. Ecology Letters. 7: 632-639 Link » Horgan, Finbarr and J.H. Myers. 2004. Interactions between ground beetles, winter moth and an introduced parasitoid on the lower mainland of British Columbia. Pedobiologia 48: 23-35 Link » Kain, W.C., Zhao, J-Z, Janmaat, A.F., Myers, J.H., Shelton, A.M. Wang, P. 2004. Inheritance of resistance to Bacillus thuringiensis Cry1Ac toxin in a greenhouse-derived strain of cabbage looper (Lepidoptera: Noctuidae). J. Econ. Entomol. 97: 000-000 Link » Cooper, D., Cory, J.S. and J.H. Myers. 2003. Hierarchical spatial structure of genetically variable nucleopolyhedroviruses infecting cyclic populations of western tent caterpillars. Molecular Ecology 12(4) Link » Cory, J.S. and J.H. Myers. 2003. The ecology and evolution of insect Baculoviruses. Ann. Rev. Ecol. and Syst. 34: 239-272 Link » Janmaat, A.F. and J.H. Myers. 2003. Rapid evolution and the cost of resistance to Bacillus thuringiensis in greenhouse populations of cabbage looper, Trichoplusia ni. Proc. Royal Soc. London B. 270:2263-2270 Link » Milks, M.L. and J.H. Myers. 2003. Cabbage looper resistance to a nucleopolyhdrovirus confers cross-resistance to two granuloviruses. Environmental Entomology 32: 286–289 Link » Cooper, D., Cory, J.S. Theilman, D. and J.H. Myers. 2002. Nucleopolyhedroviruses of forest and western tent caterpillars: cross-infectivity and evidence for activation of latent virus in high density field populations. Ecological Entomology 41-50 Link » Denoth, M., L. Frid, and J.H. Myers. 2002. Multiple agents in biological control: Improving the odds? Biological Control 24:20-30 Link » Frid, L. and Myers, J.H. 2002. Thermal ecology of western tent caterpillars, Malacosoma californicum pluviale and infection by nucleopolyhedrovirus. Ecological Entomology 27: 665-673 Link » Milks, M, J.H. Myers and M.K. Leptich. 2002. Is the resistance of cabbage loopers (Trichoplusia ni) to a nucleopolyhedrovirus stable? Effects of putative fitness costs and immigration of susceptible moths. Evolution (Accepted with revision. Revised and resubmitted).