Author:
Régnière Jacques,Sanders C. J.
Abstract
AbstractAn equation is presented for the determination of sample sizes needed to estimate with a given precision the larval population density of spruce budworm on balsam fir and white spruce branch tips in Ontario. This equation is primarily applicable to low densities, but is valid to a density of 50 larvae/branch tip. The distribution of budworm larvae at densities below 0.1/branch tip is nearly random, and is aggregated at higher densities. Their distribution is the same on the two host species.
Publisher
Cambridge University Press (CUP)
Subject
Insect Science,Molecular Biology,Physiology,Ecology, Evolution, Behavior and Systematics,Structural Biology
Reference12 articles.
1. `Mean Crowding'
2. Optimum sample size and comments on some published formulae;Karandinos;Bull. ent. Soc. Am.,1976
3. A new regression method for analyzing the aggregation pattern of animal populations
Cited by
26 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献