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A generalized algorithm for determining category size

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Summary

A revision and extension of Vandermeer's algorithm for choosing size categories from demographic data is presented along with an example of its use. The extension permits an exact consideration of sample populations which may have different underlying transition probabilities at different census periods and/or within different subpopulations. Once categories are chosen transition matrices may be computed to investigate the dynamics of the population.

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References

  • Bierzychudek P (1982) The demography of Jack-in-the-pulpit, a forest perenniel that changes sex. Ecological Monographs 52:335–351

    Google Scholar 

  • Charlesworth B (1980) Evolution in age-structured populations. Cambridge University Press, Cambridge

    Google Scholar 

  • Fowler N (1984) Patchiness in patterns of growth and survival of two grasses. Oecologia (Berlin) 62:424–428

    Google Scholar 

  • Fowler N, Antonovics J (1981a) Small scale variability in the demography of transplants of two herbaceous species. Ecology 62:1450–1457

    Google Scholar 

  • Fowler N, Antonovics J (1981b) Competition and coexistence in a North America grassland. I. Patterns in undisturbed vegetation. J Ecol 69:825–841

    Google Scholar 

  • Hartshorn GS (1972) The ecological life history and population dynamics of Pentaclethra macroloba, a tropical wet forest dominant and Strypnodendron excelsum, an occasional associate. Ph.D. Thesis, University of Washington, p 118

  • Keddy P (1980) Population ecology in an environmental mosaic: Cakile edentula on a gravel bar. Can J Bot 58:1095–1100

    Google Scholar 

  • Keyfitz N (1968) Introduction to the Mathematics of Populations. Addison-Wesley, Reading, Mass

    Google Scholar 

  • Kirkpatrick M (1984) Demographic models based on size, not age, for organisms with indeterminant growth. Ecology 65:1874–1884

    Google Scholar 

  • Lefkovitch LP (1965) The study of population growth in organisms grouped by stages. Biometrics 21:1–18

    Google Scholar 

  • Maegher TM (1982) The population biology of Chamaelirium luteum, a dioecious member of the lily family: two sex-population projections and stable population structure. Ecology 63:1707–1711

    Google Scholar 

  • Sarukhan J, Harper J (1973) Studies on plant demography: Ranunculus repens L., R. bulbosus, and R. acris L. I. Population flux and survivorship. J Ecol 61:675–716

    Google Scholar 

  • Snaydon R, Davies M (1972) Rapid population differentiation in a mosaic environment II. Morphological variation in Anthoxanthum odoratum. Evolution 26:390–405

    Google Scholar 

  • Vandermeer J (1975) On the construction of the population projection matrix for a population grouped in unequal stages. Biometrics 31:239–242

    Google Scholar 

  • Vandermeer J (1978) Choosing category size in a stage projection matrix. Oecologia (Berlin) 32:79–84

    Google Scholar 

  • Weins J (1976) Population responses to patchy environments. Ann Rev Ecol Syst 7:81–120

    Google Scholar 

  • Werner PA, Caswell HA (1977) Population growth rates and age versus stage-distribution models for teasel (Dipsacus sylvestris Huds.). Ecology 58:1103–1111

    Google Scholar 

Download references

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Moloney, K.A. A generalized algorithm for determining category size. Oecologia 69, 176–180 (1986). https://doi.org/10.1007/BF00377618

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  • DOI: https://doi.org/10.1007/BF00377618

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