Predation on Pupae of Douglas-fir Tussock Moth, Orgyia pseudotsugata (McDunnough) (Lepidoptera: Lymantriidae)
- 1 December 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 12 (6) , 1678-1682
- https://doi.org/10.1093/ee/12.6.1678
Abstract
Predation of artificially stocked Douglas-fir tussock moth pupae was 2 to 49% at sites in southern Oregon and the central Sierra Nevada in California, 1976–1979. Predation was primarily by foliage-foraging birds and, to some extent, ants. Mortality caused by these guilds, and by other unidentified predators, varied inversely with natural pupal densities. Estimated prey consumption increased asymptotically, with predation reaching about 0.02/0.65 m 2 of foliage. Results suggest a maximum attainable pupal mortality of <0.1 per unit area of foliage by the predators considered.This publication has 2 references indexed in Scilit:
- An Experimental Investigation of Inter-Relationships Between the Wood-Ant (Formica rufa) and Some Tree-Canopy HerbivoresJournal of Animal Ecology, 1981
- Cherries, Ants and Tent Caterpillars: Timing of Nectar Production in Relation in Relation to Susceptibility of Catepillars to Ant PredationEcology, 1978