Abstract
MACARTHUR and Wilson1 coined the terms r selection and K selection to describe two general kinds of selection they believed could be functioning in nature (K refers to carrying capacity and r to maximal intrinsic rate of natural increase, rm). As originally defined, the r and K selection concepts postulated that alternative genotypes within a species possessed somewhat divergent life history characteristics : genotypes with a high rm were suggested to have a relatively low K and vice versa1. Thus, r selection occurs in a fluctuating environment when there is no crowding and it is more important to increase the size of the population. K selection occurs in stable environments when population size is always near the maximum and increasing efficiency in resource use is required for the production of a few but extremely fit offspring. Pianka2 extended these concepts to include comparisons of individuals of different species. He postulated that no organism is completely r selected or completely K selected, but all must reach some compromise between the two extremes. Thus, a given species could be visualised along an r–K continuum and identified by a set of r and K characteristics2.
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References
MacArthur, R. H., and Wilson, E. O., The Theory of Island Biogeography (Princeton University Press, New Jersey, 1967).
Pianka, E. R., Am. Nat., 104, 592–597 (1970).
Loya, Y., Mar. Biol., 13, 100–123 (1972).
Slobodkin, L. B., and Sanders, H. L., Brookhaven Symp. Biol., 22, 82–93 (1969).
Colwell, R. K., Ecology, 55, 1148–1153 (1974).
Loya, Y., Mar. Biol., 29, 177–185 (1975).
Loya, Y., and Slobodkin, L. B., Symp. zool. Soc. Lond., 28, 117–139 (1971).
Dobzhansky, T., Am. Scient., 38, 209–221 (1950).
Rinkevich, B., thesis, Tel-Aviv Univ. (1975).
Connell, J. H., Biology and Geology of Coral Reefs, Vol. 2, Biology, 205–245 (Academic, New York, 1974).
Slobodkin, L. B., Growth and Regulation of Animal Populations (Holt Rinehart Winston, New York, 1961).
Hutchinson, G. E., Ecology, 32, 571–577 (1951).
MacArthur, R. H., Am. Nat., 94, 25–36 (1960).
Lewontin, R. C., The Genetics of Colonizing Species, 79–94 (Academic, New York, 1965).
Baker, H. G., The Genetics of Colonizing Species, 147–172 (Academic, New York, 1965).
Lang, J. C., Bull. mar. Sci., 21, 952–959 (1971).
Lang, J. C., Bull. mar. Sci., 23, 260–279 (1973).
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LOYA, Y. The Red Sea coral Stylophora pistillata is an r strategist. Nature 259, 478–480 (1976). https://doi.org/10.1038/259478a0
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DOI: https://doi.org/10.1038/259478a0
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