![]() Predator-induced life-history shifts in a freshwater snail. Depth distribution and biomass of submersed macrophyte communities in relation to Secchi depth. Empirical analysis of the removal rate of periphyton by grazers. The effect of grazer size manipulation on periphyton communities. ![]() Effects of submersed macrophytes on ecosystem processes. New York: Springer-Verlag 1988.Ĭarpenter, S.R. Complex interactions in lake communities. Ingestion rate: an empirical model for aquatic deposit feeders and detriti-vores. The loss of seagrass in Cockburn Sound, Western Australia. Cellulase activity and niche separation in freshwater gastropods. (Pulmonata), in terms of ingestion rates and absorption efficiencies. The feeding strategies of two freshwater gastropods, Ancylus fluviatilis (Müll.) and Planorbis contortus Linn. Evidence for bacterial feeding in Planorbis contortus Linn. The food of Ancylus fluviatilis (Müll), a littoral, stone-dwelling herbivore. Interactions of benthic algae with their substrata. Biomass accumulation and shading effects of epiphytes on leaves of the seagrass, Heterozostera tasmanica, in Victoria, Australia. Gastropod abundance in vegetated habitats: the importance of specifying null models. Predation and the distribution and abundance of a pulmonate pond snail. Basel: Birkhauser Publishers 1997: 55–88.īrown, K.M. Ecology and evolution of freshwater animals. Complex trophic interactions in freshwater benthic food chains. Indirect effects of predation in a freshwater, benthic food chain. Predation as a determinant of size structure in populations of crucian carp ( Carassius carassius) and tench ( Tinea tinea). Decoupling of cascading trophic interactions in a freshwater, benthic food chain. Indirect effects of fish community structure on submerged vegetation in shallow, eutrophic lakes: an alternative mechanism. Interactions between the leech Glossiphonia complanata and its gastropod prey. Effects of tench and perch on interactions in a freshwater, benthic food chain. Interactions between epiphytes, macrophytes and freshwater snails: a review. Interactions between epiphytes, macrophytes and herbivores: an experimental approach. Freshwater snail diversity: effects of pond area, habitat heterogeneity and isolation. The impact of small chironomid grazers on epiphytic algal abundance and dispersion. Long-term patterns of alternative stable states in two shallow eutrophic lakes. Comparative grazing efficiency of pulmonate and prosobranch snails. Experimental design, water chemistry, aquatic plant and phytoplankton biomass in experiments carried out in ponds in the Norfolk Broadlands. ![]() The loss of submerged plants with eutrophication. Predator avoidance by the freshwater snail Physella virgata in response to the crayfish Procambarus simulans. This process is experimental and the keywords may be updated as the learning algorithm improves.Īlexander, J.E., Jr Covich, A.P. These keywords were added by machine and not by the authors. (1978) also invoke epiphyton as a key factor in the decline of submerged macrophytes (e.g., Silberstein et al., 1986 Moss, 1989 Brönmark and Weisner, 1992 Van Vierssen et al., 1994). Recent modifications of the model of Phillips et al. Instead of shading by phytoplankton, they argued that increasing nutrient levels stimulate epiphyton growth, which has a negative effect on the macrophyte host through shading and competition for nutrients. (1978) suggested that macrophytes may disappear even when the bottom is within the euphotic zone where light availability is adequate for photosynthesis. Light availability is usually the most important factor determining the distribution pattern, biomass, and production of submerged macrophytes (e.g., Chambers and Kalff, 1985 Duarte et al., 1986), and it has been suggested that increasing phytoplankton biomass due to higher nutrient input results in a reduction of available light to a level at which net photosynthesis by submerged macrophytes is impossible (e.g., Jupp and Spence, 1977 Jones et al., 1983). Eutrophication of shallow freshwater and marine ecosystems has often resulted in a drastic decline in the areal extension and biomass of submerged macrophytes and a concomitant increase in the biomass of phytoplankton (e.g., Phillips et al., 1978 Cambridge et al., 1986 Hough et al., 1989 Shepherd et al., 1989). ![]()
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