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    Author(s): Andrew Liebhold; Joseph S. Elkinton
    Date: 1991
    Source: IN: Gottschalk, Kurt W.; Twery, Mark J.; Smith, Shirley I., eds. Proceedings, U.S. Department of Agriculture interagency gypsy moth research review 1990; East Windsor, CT. Gen. Tech. Rep. NE-146. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 50.
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (69.26 KB)

    Description

    The gypsy moth is perhaps the most widely studied forest insect in the world and much of this research has focused on various aspects of population dynamics. But despite this voluminous amount of research we still lack a good understanding of which, if any, natural enemy species regulate gypsy moth populations. The classical approach to analyzing insect population dynamics is the collection of a series of life-tables, stratified over several generations at the same location(s). This type of approach is valuable for detecting temporal density-dependent mortality and delayed density-dependence but recent theoretical studies have shown that the classical approach fails to quantify the relation of spatial heterogeneity in density and mortality and that this "spatial density-dependence" may have profound effects on the regulatory role of a mortality agent.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Liebhold, Andrew; Elkinton, Joseph S. 1991. Analysis of spatial density dependence in gypsy moth mortality. IN: Gottschalk, Kurt W.; Twery, Mark J.; Smith, Shirley I., eds. Proceedings, U.S. Department of Agriculture interagency gypsy moth research review 1990; East Windsor, CT. Gen. Tech. Rep. NE-146. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 50.

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