A Treatise on Limnology: Introduction to lake biology and the limnoplanktonWiley, 1957 - Freshwater biology |
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Page 232
... habitats which may be characterized in terms of the various species present . The habitat of a species , within the geographical range , may be regarded as operationally defined by specifying those parts of the ecosystem that must be ...
... habitats which may be characterized in terms of the various species present . The habitat of a species , within the geographical range , may be regarded as operationally defined by specifying those parts of the ecosystem that must be ...
Page 233
... habitats which may be characterized in terms of the various species present . The habitat of a species , within the geographical range , may be regarded as operationally defined by specifying those parts of the ecosystem that must be ...
... habitats which may be characterized in terms of the various species present . The habitat of a species , within the geographical range , may be regarded as operationally defined by specifying those parts of the ecosystem that must be ...
Page 366
... habitat volumes under competition and that ordinarily this limit implies more small specific habitats than would be present when is well in excess of 0.3 . MacArthur's distributions for equilibrium species . If we consider an ...
... habitat volumes under competition and that ordinarily this limit implies more small specific habitats than would be present when is well in excess of 0.3 . MacArthur's distributions for equilibrium species . If we consider an ...
Contents
THE STRUCTURE | 19 |
THE HYDROMECHANICS | 245 |
THE NATURE AND DISTRIBUTION | 306 |
Copyright | |
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adapted adult allied Anabaena animals Anostraca appear aquatic Asterionella autumnal Baltic basin benthic blue-green algae Bosmina brackish Calanoida Caspian cells Cladocera Class concentration Conchostraca copepodite copepods Crustacea cucullata cycle cyclomorphosis Cyclopoida Cyclotella Daphnia density desmids diatoms dilute Dinobryon distribution ecological epilimnion euryhaline eutrophic evidence fauna females FIGURE Fragilaria fresh water fresh-water species genera genus habitats hatching helmet hypogean hypolimnetic hypolimnion illumination important increase instar involved Keratella known lakes larvae least less littoral longispina mainly males marine maxima maximum medium Melosira mendotae migration movement nauplii North America Notostraca number of species nutrient observed occur oligotrophic organisms Oscillatoria parthenogenetic Phylum phytoplankton plankton ponds population probably produce Protista pulex region reproduction resting eggs retrocurva rotifers Ruttner salinity salt seasonal sinking speed specimens spring stenotherm studied summer surface temperature tion variation vertical whereas winter zooplankton