01526nas a2200157   4500008004100000245012400041210006900165300001000234490000700244520091500251653002201166100001901188700001501207700001601222856013001238       1987                        eng d00aExperimental manipulations of soil arthropod, nematode, and earthworm communities in a North American tallgrass prairie0 aExperimental manipulations of soil arthropod nematode and earthw  a9 -170 v303 aAn insecticide was applied to foliage and an insecticide-nematicide was applied to the soil surface of a North American tallgrass prairie site in an attempt to manipulate population densities of invertebrate consumers. The objectives of this study included 1) measurement of impacts of the dominant root herbivores, June beetle larvae (Phyllophaga spp.: Scarabaeidae) on plant root biomass and production; 2) to evaluate nematode and earthworm response to the chemicals and to correlate changes in these groups with changes in living or dead plant mass, and 3) to test if differences in densities of aboveground invertebrate consumer groups directly or indirectly affected population densities of the belowground groups. The last question resulted from an observation by Seastedt (1985) that moderate aboveground herbivory appears to increase population densities of soil nematodes and certain arthropod groups10atallgrass prairie1 aSeastedt, T.R.1 aTodd, T.C.1 aJames, S.J.  uhttp://lter.konza.ksu.edu/content/experimental-manipulations-soil-arthropod-nematode-and-earthworm-communities-north-american