Advertisement

A re-examination of the Lansing Effect

  • Charles E. King
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 14)

Abstract

The Lansing Effect, simply stated, is that the offspring of old parents tend to have shorter lifespans than the offspring of young parents and in both cases these tendencies are transmitted to successive generations. This statement is difficult to justify from Lansing’s data because of the variation in mean lifespan that was observed from one generation to the next. A more precise statement of the Lansing Effect is that isogenic lines derived from young parents tend to persist for more generations than lines derived from old parents.

Lansing considered aging to be the result of a factor that was transmitted from mother to offspring via the eggs. He proposed that this factor influences longevity and also alters the pattern of reproduction. Members of short-lived lines derived from old parents reproduced earlier and at higher rates in succeeding generations. In contrast, members of long-lived lines derived from young parents delayed initial reproduction to later age classes in succeeding generations. These proposals are examined using a life table analysis of Lansing’s data. The results suggest that the Lansing Effect in Philodina citrina is not due to aging, but rather is the direct result of the changes in fecundity patterns. Accordingly, it would seem prudent to regard the Lansing Effect with some skepticism until more is known about its physiological basis.

Keywords

rotifers aging Lansing Effect life history patterns 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Birch, L.C., 1948. The intrinsic rate of natural increase of an insect population. J. anim. Ecol. 27: 15–26.CrossRefGoogle Scholar
  2. Charlesworth, B., 1980. Evolution in Age-Structured Populations. Cambridge University Press, Cambridge.Google Scholar
  3. Dingle, H. & Hegmann, J.P. Eds., 1982. Evolution and Genetics of Life Histories. Springer-Verlag, New York.Google Scholar
  4. Jennings, H.S. & Lynch, R.S., 1928. Age, mortality, fertility and individual diversities in the rotifer Proales sordida Gosse. I. Effect of the age of the parent on characteristics of the offspring. J. exp. Zool. 50: 345–407.CrossRefGoogle Scholar
  5. King, C.E., 1967. Food, age, and the dynamics of a laboratory population of rotifers. Ecology 48: 111–128.CrossRefGoogle Scholar
  6. King, C.E., 1969. Experimental studies of aging in rotifers. Expl. Gerontol. 4: 63–79.CrossRefGoogle Scholar
  7. King, C.E., 1982. The evolution of lifespan. In: Dingle, H. & Hegman, J. P. (Eds.). Evolution and Genetics of Life Histories. Springer-Verlag, New-York: 121–138.Google Scholar
  8. King, C.E. & Miracle, M.R., 1980. A perspective on aging in rotifers. Hydrobiologia 73: 13–19.CrossRefGoogle Scholar
  9. Lansing, A.I., 1942a. Some effects of hydrogen ion concentration, total salt concentration, calcium and citrate on longevity and fecundity of the rotifer. J. exp. Zool. 91: 195–211.CrossRefGoogle Scholar
  10. Lansing, A.I., 1942b. Increase of cortical calcium with age in the cells of a rotifer, Euchlanis dilatata, a planarian, Phagocata, sp. and a toad, Bufo fowleri, as shown by the microincineration technique. Biol. Bull. 82: 392–400.Google Scholar
  11. Lansing, A.I., 1947. A transmissible, cumulative and reversible factor in aging. J. Gerontol. 2: 228–239.PubMedGoogle Scholar
  12. Lansing, A.I., 1948. Evidence for aging as a consequence of growth cessation. Proc. natn. Acad. Sci. 34: 304–310.CrossRefGoogle Scholar
  13. Lansing, A.I., 1954. A nongenic factor in the longevity of rotifers. Ann. N.Y. Acad. Sci. 57: 455–464.PubMedCrossRefGoogle Scholar
  14. Lints, F.A., 1978. Genetics and Aging. Interdisciplinary Topics in Gerontology, Vol. 14. Karger, Basel.Google Scholar
  15. Lints, F.A. & Hoste, C., 1974. The Lansing effect revisited - 1. Lifespan. Expl. Gerontol. 9: 51–69.CrossRefGoogle Scholar
  16. Rougier, C. & Pourriot, R., 1977. Aging and control of the reproduction in Brachionus calcyciflorus (Pallas) (Rotatoria). Expl. Gerontol. 12: 137–151.CrossRefGoogle Scholar
  17. Snell, T. W. & King, C. E., 1977. Lifespan and fecundity patterns in rotifers: the cost of reproduction. Evolution 31: 882–890.CrossRefGoogle Scholar
  18. Stearns, S. C., 1976. Life history tactics: A review of the ideas. Q. Rev. Biol. 51: 3–47.PubMedCrossRefGoogle Scholar

Copyright information

© Dr W. Junk Publishers, The Hague 1983

Authors and Affiliations

  • Charles E. King
    • 1
  1. 1.Department of ZoologyOregon State UniversityCorvallisUSA

Personalised recommendations