Abstract
Updated locality records of species of Metadiaptomus and Tropodiaptomus on the African continent confirm the generally disjunct distribution of these two taxa as recognised by Dumont (1980) in North Africa. Distributional data for southern Africa reveal little range overlap between these two genera. Apart from two south western Cape taxa, species of Metadiaptomus are largely confined to upland, higher latitude, semi-arid or arid warm subtemperate regions, while species of Tropodiaptomus generally occupy moist, lower-lying, lower latitude subtropical regions. Separation along latitudinal and/or altitudinal axes implicates temperature as a controlling factor, while separation on the precipitation axis suggests the importance of habitat permanence. Using a multiple regression equation derived for African waters to predict water temperature from latitude and altitude, it is shown that the two genera tend to separate around the 20 °C mean annual temperature isotherm. Additional factors influencing distribution (habitat permanence, water quality, competition and predation) are discussed.
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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. Kluwer Academic Publishers, Dordrecht, 458 pp.
Bailey, H. P., 1960. A method of determining the warmth and temperateness of climate. Geogr. Annaler, 42: 1–16.
Băanăarescu, R., 1990. Zoogeography of fresh waters, 1. General distribution and dispersal of freshwater animals. AULA-Verlag, Wiesbaden, 511 pp.
Begon, M., J. L. Harper & C. R. Reynolds, 1990. Ecology. Individuals, populations and communities. 2nd edn., Blackwell Scientific Publications, Boston, 945 pp.
Burgis, M. J. & J. J. Symoens (eds), 1987. African wetlands and shallow water bodies. Directory. ORSTOM, Paris. Travaux et Documents No. 211, 650 pp.
Dumont, H. J., 1980. Zooplankton and the science of biogeography: the example of Africa. In W. C. Kerfoot (ed.), Evolution and Ecology of Zooplankton Communities. The University Press of New England, Hanover (N.H.); Lond.: 685–696.
Dumont, H. J. & H. M. Verheye, 1984. The nature and origin of the crustacean zooplankton of Sahelian Africa, with a note on the Limnomedusa. Hydrobiologia 113: 313–325.
Dussart, B., 1989. Crustacés copépodes calanoïdes des eaux intérieures Africaines. Crustaceana, Supplement 15: 1–205.
Dussart, B. & D. Defaye, 1983. Répertoire mondial des Crustacés Copépodes des eaux intérieures. I. Calanoïdes. C.N.R. S., Paris, 224 pp.
Green, J., 1990. Zooplankton associations in Zimbabwe. J. Zool., Lond. 222: 259–283.
Hart, R. C., 1985. Seasonality of aquatic invertebrates in lowlatitude and Southern Hemisphere inland waters. Hydrobiologia 125: 151–178.
Hart, R. C., 1991. Food and suspended sediment influences on the naupliar and copepodid durations of freshwater copepods: comparative studies on Tropodiaptomus and Metadiaptomus. J. Plankton Res. 13: 645–660.
Hart, R. C., 1994. Equiproportional temperature-duration responses and thermal influences on distribution and species switching in the copepods Metadiaptomus meridianus and Tropodiaptomus spectabilis. Hydrobiologia 272/Dev. Hydrobiol. 92: 163–183.
Hutchinson, G. E., 1967. A treatise on limnology, 2. J. Wiley & Sons, N.Y., 1115 pp.
Hutchinson, G. E., G. E. Pickford & J. F. M. Schuurman, 1932. A contribution to the hydrobiology of pans and other inland waters of South Africa. Arch. Hydrobiol. 24: 1–154.
Kiefer, F., 1978. Freilebende Copepoda. Die Binnengewässer. 26: 1–343.
King, E. M., N. A. Rayner, M. F. Griffiths & J. Heeg, 1986. Factors affecting the elimination of Tropodiaptomus spectabilis and its replacement by Metadiaptomus transmalensis in an oligotrophic lake. Syllogeus. 58: 341–349.
LaBarbera, M. C. & P. Kilham, 1974. The chemical ecology of copepod distribution in the lakes of East and Central Africa. Limnol. Oceanogr. 19: 459–465.
Noble, R. G. & J. Hemens, 1978. Inland water ecosystems in South Africa — a review of research needs. South African National Scientific Programmes Report 34: 1–150.
Rayner, N. A., 1990. The freshwater Diaptomidae (Calanoida: Copepoda) of southern Africa. Unpublished Ph. D. thesis, University of Natal, Pietermaritzburg, 219 pp.
Rayner, N. A. & J. Heeg, 1994. Distribution patterns of the Diaptomidae (Calanoida: Copepoda) in southern Africa. Hydrobiologia 272/Dev. Hydrobiol. 92: 47–75.
Straškraba, M., 1980. The effects of physical variables on freshwater production: analyses based on models. In E. D. Le Cren & R. H. Lowe-McConnell (eds), The functioning of freshwater ecosystems. Cambridge University Press, London: 13–84.
Stuckenberg, B. R., 1969. Effective temperature as an ecological factor in southern Africa. Zool. Afr. 4: 145–197.
van Schalkwyk, D. J. & R. D. Walmsley, 1984. Prediction of surface water temperature of South African impoundments. J. Limnol. Soc. sth. Afr. 10: 57–61.
Walmsley, R. D. & M. Butty (eds), 1980. Limnology of some selected South African impoundments. Water Research Commission and National Institute for Water Research collaborative report, V & R Printing Works, Pretoria, 229 pp.
Williams, W. D., (1988) Limnological imbalances: an antipodean viewpoint. Freshwat. Biology 20: 407–420.
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Hart, R.C., Rayner, N.A. Temperature-related distributions of Metadiaptomus and Tropodiaptomus (Copepoda: Calanoida), particularly in southern Africa. Hydrobiologia 272, 77–86 (1994). https://doi.org/10.1007/BF00006513
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DOI: https://doi.org/10.1007/BF00006513