, Volume 73, Issue 2, pp 251–256 | Cite as

Life history variation among low-arctic clones of obligately parthenogenetic Daphnia pulex: a diploid-polyploid complex

  • L. J. Weider
Original Papers


Laboratory life table experiments were conducted using nine clones of obligately parthenogenetic Daphnia pulex that were collected from a site in the Canadian low-arctic. Two of the nine clones were diploids, while the other seven clones were polyploids. Significant clonal differences in age at first reproduction, size at first reproduction, number of offspring in each of the first three broods, offsrring sizes for the first two broods, and intrinsic rates of natural increase were detected. Differences in life histories were evident between polyploids and diploids. Generally, polyploid clones reached maturity at later ages, matured at larger sizes, produced smaller broods, and larger offspring than the diploid clones. The data are discussed in reference to potential biotic (i.e. invertebrate predation) and abiotic factors (i.e. physicochemical gradients) that may influence life history variation in this clonal assemblage.

Key words

Life histories Polyploidy Parthenogenetic Daphnia Clones Arctic 


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  1. Beatty RA (1957) Parthenogenesis and polyploidy in mammalian development, Cambridge Monographs in Experimental Biology, no. 7, Cambridge Univ. Press, LondonGoogle Scholar
  2. Cavalier-Smith T (1978) Nuclear volume control by nucleoskeletal DNA, selection for cell volume and cell growth, and the solution of the DNA C-value paradox. J Cell Sci 34:247–278Google Scholar
  3. Dingle H, Hegmann JP (eds) (1982) Evolution and genetics of life histories, Springer-Verlag, New YorkGoogle Scholar
  4. Dodson SI (1984) Predation of Heterocope septentrionalis on two species of Daphnia: morphological defenses and their cost. Ecology 65:1249–1257Google Scholar
  5. Emery CJ (1984) The ecological impact of near ultraviolet radiation on Daphnia pulex. M.S. thesis, Univ. of WindsorGoogle Scholar
  6. Falconer DS (1981) Introduction to quantitative genetics, 2nd edn. Longman, New YorkGoogle Scholar
  7. Hebert PDN, Crease TJ (1980) Clonal coexistence in Daphnia pulex (Leydig): another planktonic paradox. Science 207: 1363–1365Google Scholar
  8. Hebert PDN, Loaring JM (1980) Selective predation and the species composition of Arctic ponds. Can J Zool 58:422–426Google Scholar
  9. Hebert PDN, McWalter DB (1983) Cuticular pigmentation in arctic Daphnia: adaptive diversification of asexual lineages? Amer Nat 122:286–291Google Scholar
  10. Hebert PDN, Hann BJ (1986) Patterns in the composition of arctic tundra pond microcrustacean communities. Can J Fish Aquat Sci 43:1416–1425Google Scholar
  11. Levin DA (1983) Polyploidy and novelty in flowering plants. Am Nat 122:1–25Google Scholar
  12. Lewis WH (ed) (1980) Polyploidy: biological relevance, Basic Life Sciences, vol. 13. Plenum Press, New YorkGoogle Scholar
  13. Lokki J, Saura A (1980) Polyploidy in insect evolution. In: Lewis WH (ed) Polyploidy: biological relevance, Plenum Press, New York, pp 277–312Google Scholar
  14. Lynch M (1980) The evolution of cladoceran life histories. Quart Rev Biol 55:23–42Google Scholar
  15. Lynch M (1982) Ecological genetics of Daphnia. Evol 37:358–374Google Scholar
  16. Lynch M (1984) Destabilizing hybridization, general-purpose genotypes and geographic parthenogenesis. Quart Rev Biol 59:257–290Google Scholar
  17. Lynch M, Ennis R (1983) Resource availability, maternal effects, and longevity. Experimen Gerontol 18:147–165Google Scholar
  18. Lynch M, Weider LJ, Lampert W (1986) Measurement of the carbon balance in Daphnia. Limnol Oceanogr 31:17–33Google Scholar
  19. McWalter DB (1981) Genetic variation and relatedness of asexual Daphnia species. M.S. thesis, Univ. of WindsorGoogle Scholar
  20. Mooney HA, Johnson AW (1965) Comparative physiological ecology of an arctic and alpine population of Thalictum alpinum L. Ecology 46:721–727Google Scholar
  21. Purdom CE (1976) Genetic techniques in flatfish culture. J Fish Res Bd Can 33:1088–1099Google Scholar
  22. Ray AA (1982) SAS user's guide, Statistics 1982. SAS Institute, Cary, North CarolinaGoogle Scholar
  23. Reznick D (1982) The impact of predation on life history evolution in Trinidadian guppies: genetic basis of observed life history patterns. Evolution 36:1236–1250Google Scholar
  24. Roughgarden J (1979) Theory of population genetics and evolutionary ecology: an introduction, MacMillan, New YorkGoogle Scholar
  25. Schultz RJ (1982) Competition and adaptation among diploid and polyploid clones of unisexual fishes. In: Dingle H, Hegmann JP (eds) Evolution and genetics of life histories, Springer-Verlag, New York, pp 103–120Google Scholar
  26. Schwartz SS, Hebert PDN (1986) Prey preference and utilization by Mesostoma lingua (Turbellaria, Rhabdocoela) at a low arctic site. Hydrobiol 135:251–257Google Scholar
  27. Sokal RR, Rohlf FJ (1981) Biometry, 2nd edn. WH Freeman and Co., San FranciscoGoogle Scholar
  28. Stearns SC (1976) Life history tactics: a review of the ideas. Quart. Rev Biol 51:3–47Google Scholar
  29. Stearns SC (1977) The evolution of life history traits: a critique of the theory and a review of the data. Ann Rev Ecol Syst 8:145–171Google Scholar
  30. Tal M (1980) Physiology of polyploids. In: Lewis WH (ed) Polyploidy: biological relevance, Plenum Press, New York, pp 61–75Google Scholar
  31. Tal M, Gardi I (1976) Physiology of polyploid plants: water balance in autotetraploid and diploid tomato under low and high salinity. Physiol Pl 38:257–261Google Scholar
  32. Tal M, Heikin H, Dehan K (1978) Salt tolerance in the wild relatives of the cultivated tomato: responses of callus tissue of Lycopersicon esculentum, L. peruvianum, and Solanum pennellii to high salinity. Z Pflanzen 86:231–240Google Scholar
  33. Weider LJ (1985) Spatial and temporal genetic heterogeneity in a natural Daphnia population. J Plankton Res 7:101–123Google Scholar
  34. Weider LJ, Hebert PDN (1987a) Ecological and physiological differentiation among low-arctic clones of Daphnia pulex. Ecology 68:188–198Google Scholar
  35. Weider LJ, Hebert PDN (1987b) Microgeographic genetic heterogeneity of melanic Daphnia pulex at a low-arctic site. Heredity 58:391–399Google Scholar

Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • L. J. Weider
    • 1
  1. 1.Department of Biological SciencesUniversity of WindsorWindsorCanada

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