Some Effects of Avian Predators on the Western Spruce Budworm 1 in North Central Washington
- 1 April 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 11 (2) , 429-431
- https://doi.org/10.1093/ee/11.2.429
Abstract
Single-branch exclosures were used to examine the effects of avian predators on Choristoneura occidentalis Freeman in north central Washington. Pupal densities on protected branches were twice as high as on control branches. Comparisons between sites and crown levels revealed that apparent differences in predation may have been influenced by differences in natural budworm densities.This publication has 3 references indexed in Scilit:
- Sources of Mortality Among Late Instar Gypsy Moth1 Larvae in Sparse Populations2Environmental Entomology, 1977
- The Numerical Response of Avian and Mammalian Predators during a Gradation of the Spruce BudwormEcology, 1958
- Natural Control Factors Affecting the Spruce Budworm in the Adirondacks During 1946–19481Journal of Economic Entomology, 1950