1- AND 2-YEAR DORMANCY OF THE DOUGLAS-FIR CONE MOTH, BARBARA COLFAXANA KFT. (LEPIDOPTERA: OLETHREUTIDAE): POSSIBLE RELATION TO INDIVIDUAL WEIGHTS
- 1 October 1991
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 123 (5) , 1153-1155
- https://doi.org/10.4039/ent1231153-5
Abstract
Many cone and seed insects exhibit a dormancy in which the individuals may undergo a diapause that lasts 1, 2, or more winters and the proportion of 1-year diapause (1YD) and 2-year diapause (2YD) varies from year to year (Hedlin et al. 1980). Thus, segregating the two diapause types carries a practical importance for forecasting the attacking adult population in a given year. Based primarily on teleological reasoning it has been argued that insects committed to a longer dormancy may have higher weights with metabolites to sustain survival for a longer period. Individual weights have been examined with the hope of separating 1YD from 2YD individuals.Keywords
This publication has 2 references indexed in Scilit:
- PHARATE-ADULT DIAPAUSE OF BARBARA COLFAXIANA (KFT.): DIFFERENTIATION OF 1- AND 2-YEAR DORMANCYThe Canadian Entomologist, 1985
- DIAPAUSE IN THE PHARATE ADULT STAGE OF INSECT DEVELOPMENTThe Canadian Entomologist, 1982