Abstract
Variation of 4 polymorphic enzymes was studied for 2 yr (1978 and 1979) in an undescribed species of Siphonaria, a pulmonate limpet, from a rocky shore at Rottnest Island, Western Australia. Depending on the locus, significant genetic differences were found among sites along 50 m of shore, between high and low portions of the shore within sites, between adults and recruits, and between recruits in the 2 yr. This genetic heterogeneity does not follow a simple, consistent pattern, but forms a shifting, ephemeral genetic patchiness best described as chaotic. This patchiness may result from temporal variation of numbers and genotypes of recruits, which leads to the proposal that planktonic dispersal, although causing uniformity on a large scale, can give rise to fine-scale genetic patchiness.
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Literature Cited
Berger, E.: Gene-enzyme variation in three sympatric species of Littorina. Biol. Bull. mar. biol. Lab., Woods Hole 145, 83–90 (1973)
Black, R.: Competition between intertidal limpets: an intrusive niche on a steep resource gradient. J. Anim. Ecol. 48, 401–411 (1979)
Black, R., K. Fisher, A. Hill and P. McShane: Physical and biological conditions on a steep intertidal gradient at Rottnest Island, Western Australia. Aust. J. Ecol. 4, 67–74 (1979)
Black, R. and M. S. Johnson: Genetic differentiation independent of intertidal gradients in the pulmonate limpet Siphonaria kurracheensis. Mar. Biol. 64, 79–84 (1981)
Doyle, R. W.: Choosing between darkness and light: the ecological genetics of photic behaviour in the planktonic larva of Spirorbis borealis. Mar. Biol. 25, 311–317 (1974)
Flowerdew, M. W. and D. J. Crisp: Allelic esterase isozymes, their variation with season, position on the shore and stage of development in the cirripede Balanus balanoides. Mar. Biol. 35, 319–325 (1976)
Giesel, J. T.: On the maintenance of a shell pattern and behaviour polymorphism in Acmaea digitalis, a limpet. Evolution, Lawrence, Kansas 24, 98–119 (1970)
Gillespie, J. H. and C. H. Langley: A general model to account for enzyme variation in natural populations. Genetics, Austin, Tex. 76, 837–848 (1974)
Hedrick, F. W., M. E. Ginevan and E. P. Ewing: Genetic polymorphism in heterogeneous environments. A. Rev. Ecol. Syst. 7, 1–32 (1976)
Johnson, M. S.: Adaptive lactate dehydrogenase variation in the crested blenny, Anoplarchus. Heredity, Lond. 27, 205–226 (1971)
Johnson, R. G.: Temperature variation in the infaunal environment of a sand flat. Limnol. Oceanogr. 10, 114–120 (1965)
Johnson, R. G.: Salinity of interstitial water in a sandy beach. Limnol. Oceanogr. 12, 1–7 (1967)
Koehn, R. K., R. Milkman and J. B. Mitton: Population genetics of marine pelecypods. IV. Selection, migration and genetic differentiation in the blue mussel, Mytilus edulis. Evolution, Lawrence, Kansas 30, 2–31 (1976)
Koehn, R. K., F. J. Turano and J. B. Mitton: Population genetics of marine pelecypods. II. Genetic differences in microhabitats of Modiolus demissus. Evolution, Lawrence, Kansas 27, 100–105 (1973)
Levins, R.: Evolution in changing environments, 120 pp. Princeton: Princeton University Press 1968
Levinton, J. S. and D. L. Fundiller: An ecological and physiological approach to the study of biochemical polymorphisms. Proc. 9th Eur. mar. Biol. Symp. 165–178 (1975). (Ed. by H. Barnes. Aberdeen: Aberdeen University Press)
Levinton, J. S. and H. H. Lassen: Selection, ecology and evolutionary adjustment within bivalve mollusc populations. Phil. Trans. R. Soc. (Ser. B) 284, 403–415 (1978)
Milkman, R. and R. K. Koehn: Temporal variation in the relationship between size, numbers, and an allele-frequency in a population of Mytilus edulis. Evolution, Lawrence, Kansas 31, 103–115 (1977)
Newell, R. C.: Biology of intertidal animals, 781 pp. Faversham, Kent, U.K.: Marine Ecological Surveys Ltd. 1979
Nichols, E. A. and F. H. Ruddle: A review of enzyme polymorphism, linkage and electrophoretic conditions for mouse and somatic cell hybrids in starch gels. J. Histochem. Cytochem. 21, 1066–1081 (1973)
Scheltema, R. S.: Larval dispersal as a means of genetic exchange between geographically separated populations of shallow water benthic marine gastropods. Biol. Bull. mar. biol. Lab., Woods Hole 140, 284–322 (1971)
Selander, R. K., M. H. Smith, S. Y. Yang and W. E. Johnson: Biochemical polymorphism and systematics in the genus Peromyscus. I. Variation in the old-field mouse Peromyscus polionotus. Stud. Genet., Austin, Tex. 6, 49–90 (1971)
Simpson, G. G., A. Roe and R. C. Lewontin: Quantitative zoology, 400 pp. New York: Harcourt, Brace&Co. 1960
Struhsaker, J. W.: Selection mechanisms associated with intraspecific shell variation in Littorina picta (Prosobranchia: Mesogastropoda). Evolution, Lawrence, Kansas 22, 459–480 (1968)
Tracey, M. L., N. F. Bellet and C. D. Gravem: Excess allozyme homozygosity and breeding population structure in the mussel Mytilus californianus. Mar. Biol. 32, 303–311 (1975)
Zouros, E., S. M. Singh and H. E. Miles: Growth rate in oysters: an overdominant phenotype and its possible explanations. Evolution, Lawrence, Kansas 34, 856–867 (1980)
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Communicated by G. F. Humphrey, Sydney
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Johnson, M.S., Black, R. Chaotic genetic patchiness in an intertidal limpet, Siphonaria sp.. Mar. Biol. 70, 157–164 (1982). https://doi.org/10.1007/BF00397680
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DOI: https://doi.org/10.1007/BF00397680