Abstract
Changes in invertebrate population numbers and composition were monitored in six small shallow ephemeral pans during four consecutive inundations of spring, summer and autumn 1988/1989. The community was generally characterized by crustaceans and was invaded by insect larvae in summer. Community changes and succession were prominent in spring but less so in summer and autumn. Large pans supported more species than small pans. During longer inundation there was less difference between the initial and the final population composition than during shorter inundation, although the total population density did not increase significantly. This indicated that population composition stabilized as inundation lengthened. Population changes of six representative taxa were not correlated to changes in the physical and chemical characteristics of the water.
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Allanson, B. R., R. C. Hart, J. H. O'Keeffe & R. D. Robarts, 1990. Inland waters of southern Africa: An ecological perspective. Monographiae Biologicae vol. 64, Kluwer Academic Publishers, Dordrecht, 458 pp.
Boulton, A. J., C. G. Peterson, N. B. Grimm & S. G. Fisher, 1992. Stability of an aquatic macroinvertebrate community in a multiyear hydrologic disturbance regime. Ecology 73: 2192–2207.
Brendonck, L., A. Thiéry & A. Coomans, 1990. Taxonomy and biogeography of the Galapagos Branchiopod fauna (Anostraca, Notostraca, Spinicaudata). J. Crust. Biol. 10: 676–694.
Coetzer, A., 1981. Some limnological observations of a temporary west coast pan in southern Africa: Rocher Pan. Hydrobiologia 8: 161–167.
Dodson, S. I., 1987. Animal assemblages in temporary desert rock pools: aspects of the ecology ofDasyhelea sublettei (Diptera: Ceratopogonidae). J. N. am Benthol. Soc. 6: 65–71.
Donald, D. B., 1983. Erratic occurrence of Anostracans in a temporary pond: colonization and extinction or adaptation to variations in annual weather? Can. J. Zool. 61: 1492–1498.
Ebert, T. A. & M. L. Balko, 1987. Temporary pools as islands in space and in time: the biota of vernal pools in San Diego, Southern California, USA. Arch. Hydrobiol. 110: 101–123.
Fryer, G., 1985. Crustacean diversity in relation to the size of water bodies: some facts and problems. Freshwat. Biol. 15: 347–361.
Fryer, G., 1987a. A new classification of the branchiopod Crustacea. Zool. J. linn. Soc. 91: 357–383.
Fryer, G., 1987b. Quantitative and qualitative: numbers and reality in the study of living organisms. Freshwat. Biol. 17: 177–189.
Goudie, A. S. & D. S. G. Thomas, 1985. Pans in southern Africa with particular reference to South Africa and Zimbabwe. Z. Geomorph. N.F. 29: 1–19.
Guimaraes, M. C., 1992. Plankton rotifer community structure in Alto Cavado reservoir in relation to trophic status. Publ. Inst. Zool. ‘Dr Augusto Nobre’ Fac. Cienc. Porto. O (231): 1–14.
Hamer, M. L. & C. C. Appleton, 1991. Life history adaptations of phyllopods in response to predators, vegetation, and habitat duration in north-eastern Natal. Hydrobiologia 212 (Dev. Hydrobiol. 64): 105–116.
Hutchinson, G. E., 1931. The hydrobiology of arid regions. Yale Scientific Magazine 5: 13, 34–35.
Leibold, M. A. & H. M. Wilbur, 1992. Interactions between foodweb structure and nutrition of pond organisms. Nature 360: 341–343.
MacArthur, R. H. & E. O. Wilson, 1967. The theory of island biogeography. Princeton University Press, Princeton, N. J., 203 pp.
McLachlan, A. J., 1981. Food sources and foraging tactics in tropical rain pools. Zool. J. linn. Soc. 71: 265–277.
McLachlan, A. J., 1985. What determines the species present in a rain-pool? Oikos 45: 1–7.
Meintjes, S., M. T. Seaman & D. J. Kok, 1994. Duration of inundation and change in physical and chemical characteristics of small temporary pans in South Africa. Hydrobiologia 281: 79–90.
Osborne, P. L. & A. J. McLachlan, 1985. The effect of tadpoles on algal growth in temporary, rain-filled rock pools. Freshwat. Biol. 15: 77–87.
Romesburg, H. C., 1984. Cluster analysis for researchers. Lifetime Learning Publications, Belmont, California. 477 pp.
Rzóska, J., 1961. Observations on tropical rainpools and general remarks on temporary waters. Hydrobiologia 17: 265–286.
Sankarperumal, G. & T. J. Pandian, 1992. Larval abundance of Chironomus circumdatus in relation to biotic and abiotic factors. Hydrobiologia 246: 205–212.
Schefler, W. C., 1979. Statistics for the Biological Sciences. 2nd edn. Addison-Wesley Publishing Company, Philippines, 230 pp.
Seaman, M. T. & D. J. Kok, 1987. Ecological diversity in Orange Free State pans. Occasional Report Series No. 28, Ecosystem Programmes, Foundation for Research and Development, CSIR, Pretoria: 260–273.
Shaw, P. A., 1988. Lakes and Pans. In B. P. Moon & G. F. Dardis (eds), The Geomorphology of Southern Africa. Southern Book Publishers, Johannesburg: 120–140.
Thiery, A., 1991. Multispecies coexistence of branchiopods (Anostraca, Notostraca & Spinicaudata) in temporary ponds of Chaouia plain (western Morocco): sympatry or syntopy between usually allopatric species. Hydrobiologia 212 (Dev. Hydrobiol. 64): 117–136.
Weir, J. S., 1969. Studies on Central African pans III. Fauna and physico-chemical environment of some ephemeral pools. Hydrobiologia 33: 93–116.
Williams, W. D., 1985. Biotic adaptations in temporary lentic waters, with special reference to those in semiarid and arid regions. Hydrobiologia 125 (Dev. Hydrobiol. 28): 85–110.
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Meintjes, S. Seasonal changes in the invertebrate community of small shallow ephemeral pans at Bain's Vlei, South Africa. Hydrobiologia 317, 51–64 (1996). https://doi.org/10.1007/BF00013725
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DOI: https://doi.org/10.1007/BF00013725