Date of this Version
The pine vole research effort under way at VPI & SU has involved 4 parts: an investigation of nutrition and energetics, a study of habitat and behavior, an evaluation of chemical control, and the development of a computer simulation model of population dynamics. Coyle et a1. (1981) reported on the results of a preliminary model developed by Coyle (1980), and outlined a second stage model to incorporate his (1980) recommendations and the continually expanding base of field and laboratory data. The preliminary model was a demographic simulator mechanistically driven by bioenergetic equations developed chiefly from laboratory studies at Virginia Tech. The second stage model was proposed to include 4 submodels, one each dealing with the biological and spatial aspects of pine vole populations, and with the control procedures and economic aspects of orchard management for pine voles. To date, the majority of work has been on the extensive refinement of the biological and spatial components, and only those refinements are discussed here.