Authors: Lindroth, RL Kopper, BJ Parsons, WFJ Bockheim, JG Karnosky, DF Hendrey, GR Pregitzer, KS Isebrands, JG Sober, J

Citation: Rl. Lindroth et al., Consequences of elevated carbons dioxide and ozone for foliar chemical composition and dynamics in trembling aspen (Populus tremuloides) and paper birch (Betula papyrifera), ENVIR POLLU, 115(3), 2001, pp. 395-404

Authors: Kopper, BJ Shu, SQ Charlton, RE Ramaswamy, SB

Citation: Bj. Kopper et al., Evidence for reproductive diapause in the fritillary Speyeria idalia (Lepidoptera : Nymphalidae), ANN ENT S A, 94(3), 2001, pp. 427-432

Authors: Kopper, BJ Charlton, RE Margolies, DC

Citation: Bj. Kopper et al., Oviposition site selection by the regal fritillary, Speyeria idalia, as affected by proximity of violet host plants, J INSECT B, 13(5), 2000, pp. 651-665

Authors: Charlton, RE Kopper, BJ

Citation: Re. Charlton et Bj. Kopper, An unexpected range extension for Cicindela trifasciata F. (Coleoptera : Carabidae : Cicindelinae), COLEOPTS B, 54(2), 2000, pp. 266-268