Numbers of tents of western tent caterpillars over time for six areas in British Columbia Canada and population characteristics for the population on Galiano Island

This paper is a historical account of the experiments and observations on
the population dynamics of western tent caterpillars, Malacosoma
californicum pluviale, beginning in the 1975 through 2025. It contains
figures of population trends and characteristics of the populations that
vary with population density to show that infection by
Mcplnucleopolyhedrovirus (extrinsic factor) and changes in fecundity and
early larval survival (tent size) (intrinsic factors) relate to the
population change.