Now showing items 1-3 of 3

    • Dynamics of a subterranean trophic cascade in space and time 

      Ram, Karthik; Gruner, Daniel; McLaughlin, John; Preisser, Evan; Strong, Donald (2008)
      Trophic cascades, whereby predators indirectly benefit plant biomass by reducing herbivore pressure, form the mechanistic basis for classical biological control of pest insects. Entomopathogenic nematodes (EPN) are lethal ...
    • Metapopulation dynamics override local limits on long-term parasite persistence 

      Ram, Karthik; Preisser, Evan; Gruner, Daniel; Strong, Donald (2008-12)
      A simple null model, particularly germane to small and vulnerable organisms such as parasites, is that local conditions set a stage upon which larger-scale dynamics play out. Soil moisture strongly influences survival ...
    • Soil mediates the interaction of coexisting entomopathogenic nematodes with an insect host 

      Gruner, Daniel; Ram, Karthik; Strong, Donald (Journal of Invertebrate Pathology, 2007)
      We tested for soil substrate effects on the movement and infectivity of naturally co-occurring entomopathogenic nematodes Steinernema feltiae and Heterorhabditis marelatus, alone and in combination. We manipulated the ...