Preface. Dedication: W.T. Edmondson - In memoriam. B. Pejler - In memoriam. T. Frost - In memoriam. Part I: Autecology and Population Ecology. Review paper: Dormancy patterns in rotifers; C. Ricci. Recipes for successful anhydrobiosis in bdelloid rotifers; M. Caprioli, C. Ricci. Spine development in Brachionus quadridentatus from an Australian billabong: genetic variation and induction by Asplanchna; J.J. Gilbert. The relationship between Trichocerca pusilla (Jennings), Aulacoseira spp. and water temperature in Loch Leven, Scotland, U.K.; L. May. Swimming speed and Reynolds numbers of eleven freshwater rotifer species; G.E. Santos-Medrano, et al. Density-dependent regulation of natural and laboratory rotifer populations; T.W. Snell, et al. Part II: Reproduction and Life History. Variability for mixis initiation in Brachionus plicatilis; E. Aparici, et al. Parasites in rotifers from the Volga delta; A.K. Gorbunov, A.A. Kosova. Use of microparticulate markers in examination of rotifer physiology: Results and prospects; N. Lindemann, et al. Population growth of Lepadella patella (Müller, 1786) under different algal (Chlorella vulgaris) densities and in association with Philodina roseola Ehrenberg, 1832; S. Nandini, S.S.S. Sarma. Egg size and offspring fitness in a bdelloid rotifer; N. Santo, et al. Life table demography and population growth of Brachionus variabilis Hempel, 1896 in relation to Chlorella vulgaris densities; S.S.S. Sarma, S. Nandini. Life cycle patterns of rotifers in Lake Peipsi; T. Virro. Life history characteristics of three types of females in Brachionus calyciflorus Pallas(Rotifera) fed different algae; Y.-L. Xi, et al. Why do rotifer populations present a typical sigmoid growth curve?; T. Yoshinaga, et al. Part III: Trophic relations and interspecific interactions. Grazing by a dominant rotifer Conochilus unicornis Rousselet in a mountain lake: in situ measurements with synthetic microspheres; X. Armengol, et al. Observations of insect predation on rotifers; S.E. Hampton, J.J. Gilbert. The effect of bacteria on interspecific relationships between the euryhaline rotifer Brachionus rotundiformis and the harpacticoid copepod Tigriopus japonicus; M.-M. Jung, A, Hagiwara. Bed and Breakfast: the parasitic life of Proales werneckii (Ploimida: Proalidae) within the alga Vaucheria (Xanthophyceae: Vaucheriales); R.L. Wallace, et al. Part IV: Ecosystem Ecology. Review paper: The Ecology of Periphytic Rotifers; I.C. Duggan. The psammic rotifer structure in three Lobelian Polish lakes differing in pH; I. Bielanska-Grajner. Distribution of rotifers in North Island, New Zealand, and their potential use as bioindicators of lake trophic state; I.C. Duggan, et al. Urban rotifers: structure and densities of rotifer communities in water bodies of the Poznań agglomeration area (Western Poland); J. Ejsmont-Karabin, N.Kuczyńska-Kippen. Rotifer distributions in the coastal waters of the northeast Pacific Ocean; S.C. Fradkin. Species diversity and dominance in the planktonic rotifer community of the Pripyat River in the Chernobyl region (1988-1996); G.A. Galkovskaya, D.V. Molotkov. Variability and instability of planktonic rotifer associations in Lesotho, southern Africa; J. Green. Diurnal vertical distribution of rotifers (Rotifera) in the
