Hostname: page-component-8448b6f56d-c4f8m Total loading time: 0 Render date: 2024-04-24T21:57:05.503Z Has data issue: false hasContentIssue false
  • English
  • Français

SAMPLING SYSTEMS FOR THE BIRCH CASEBEARER (LEPIDOPTERA: COLEOPHORIDAE)

Published online by Cambridge University Press:  31 May 2012

A. G. Raske  and
M. Alvo
A. G. Raske
Affiliation:
Newfoundland Forest Research Center, Canadian Forestry Service, St. John's, Newfoundland A1C 5X8
M. Alvo
Affiliation:
Applied Statistics and Scientific Computing Branch, Environment Canada, Ottawa, Ontario K1A 0E7
Get access Rights & Permissions [Opens in a new window]

Abstract

Sample sizes needed to measure population levels of the birch casebearer, Coleophora fuscedinella Zeller, and its damage to white birch, Betula papyrifera Marsh, were calculated for various degrees of confidence and assurance. Both a non-destructive and a destructive sampling plan are presented and a new method to classify the damage level of a stand. This method uses a maximum likelihood technique to estimate the proportion of trees of various damage classes.

Résumé

On a calculé avec divers degrés de confiance et d’assurance, les grandeurs d’échantillons nécessaires pour déterminer les populations de Porte-case du Bouleau, Coleophora fuscedinella Zeller, et ses dommages sur le Bouleau à papier, Betula papyrifera March. Les auteurs présentent un plan d’échantillonnage destructeur et un autre non destructeur, ainsi qu’une nouvelle méthode pour classer les niveaux des dommages dans un peuplement. Cette méthode utilise une technique à vraisemblance maximale, pour évaluer la proportion d’arbres par catégorie de dommages. On présente aussi des équations de régression pouvant prévoir la sévérité de la défoliation par le Porte-case du Bouleau ayant hiverné et les ordres de grandeur d’échantillons qu’il faut pour mesurer la défoliation.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 8 , August 1979 , pp. 875 - 882
Copyright
Copyright © Entomological Society of Canada 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bliss, C. I. 1967. Statistics in Biology. Vol. I, McGraw-Hill, New York and London.Google Scholar
Bryant, D. G. and Raske, A. G.. 1975. Defoliation of white birch by the birch casebearer (Lepidoptera: Coleophoridae). Can. Ent. 107: 217–223.CrossRefGoogle Scholar
Canadian Forestry Service. 1967. A. Rep. For. Insect and Disease Surv., 1966. Can Dep. For. Rural Development, For. Branch, Ottawa. (See also reports for years 1967 to 1977.)Google Scholar
Cochran, W. G. 1963. Sampling Techniques. Wiley, New York.Google Scholar
Gillespie, A. M. 1932. The birch casebearer in Maine. Maine For. Serv. Bull. 7.Google Scholar
Guèvremont, H. and Juillet, J.. 1974. Recherches sur la dynamique des populations naturelles de Coleophora fuscedinella Zeller (Lépidoptères: Coleophoridae) dans la région de Sherbrooke, Québec. Phytoprotection 55: 121–134.Google Scholar
Raske, A. G. 1974 a. Mortality of birch casebearer eggs. Environ. Can., Bi-mon. Res. Notes 30: 1–2.Google Scholar
Raske, A. G. 1974 b. Intra-tree distribution of the birch casebearer on white birch. Can. For. Serv., Newfoundland For. Research Centre, Information Rep. N-X-125.Google Scholar
Raske, A. G. and Bryant, D. G.. 1976. Distribution of overwintering birch casebearer larvae, Coleophora fuscedinella, on white birch (Lepidoptera: Coleophoridae). Can. Ent. 108: 407–414.CrossRefGoogle Scholar
Raske, A. G. and Bryant, D. G.. 1977 a. Relation of birch casebearer (Lepidoptera: Coleophoridae) numbers to per cent defoliation of white birch. Can. Ent. 109: 1307–1312.CrossRefGoogle Scholar
Raske, A. G. and Bryant, D. G.. 1977 b. Distribution, survival, and intra-tree movement of late-instar birch casebearer larvae on white birch (Lepidoptera: Coleophoridae). Can. Ent. 109: 1297–1306.CrossRefGoogle Scholar