Download the full-sized PDF of Body size, age, and disease influence female reproductive performance in Choristoneura conflictana (Lepidoptera: Tortricidae)Download the full-sized PDF



Permanent link (DOI):


Export to: EndNote  |  Zotero  |  Mendeley


This file is in the following communities:

Biological Sciences, Department of


This file is in the following collections:

Journal Articles (Biological Sciences)

Body size, age, and disease influence female reproductive performance in Choristoneura conflictana (Lepidoptera: Tortricidae) Open Access


Author or creator
Evenden, M. L.
Lopez, M. S.
Keddie, B. A.
Additional contributors
Reproductive performance
Body size
Large aspen tortrix
Type of item
Journal Article (Published)
Abstract: We determined the effect of body size and adult female longevity on the realized fecundity and fertility of the large aspen tortrix, Choristoneura conflictana (Walker) (Lepidoptera: Tortricidae), an outbreaking forest lepidopteran. We examined these relationships from an ecological perspective and included the impact of age at pairing and infection with a microsporidian pathogen in our analyses. The relationship between body size, as measured by pupal weight and forewing length and area, and realized fecundity and fertility was best for healthy females that were paired immediately after eclosion. A delay in age of pairing or sublethal pathogen infection eroded these relationships. A delay in age of pairing resulted in a lower percentage of females that produced fertile eggs and a significant reduction in the number of eggs laid. Although sublethal pathogen infection indirectly disrupted the body size-realized fecundity and fertility relationship, infection did not directly decrease egg production. Wing area was the best predictor of total and fertile egg production. The relationship between pupal weight and wing area was correlated, but females eclosing from small pupae bad proportionately larger wings than females from large pupae, which may indicate a cost of large body mass in this actively dispersing species. Longevity of females did not predict the total or fertile number of eggs laid by females. There was no consistent relationship between pairing treatment and longevity of female moths, suggesting that there is no trade-off between longevity and reproductive fitness in this species. Sublethal pathogen infection significantly decreased female moth longevity, but this decrease was not reflected in reduced fecundity of infected females. Our data illustrate that although body size is an important determinant of realized fecundity and fertility in C. conflictana, these relationships are mediated by several factors that may vary greatly under field conditions and at varying population densities.
Date created
License information
© 2006 Entomological Society of America. This article is the copyright property of the Entomological Society of America and may not be used for any commercial or other private purpose without specific written permission of the Entomological Society of America.
Citation for previous publication
Evenden, M.L., Lopez, M.S. & Keddie, B.A. (2006). Body size, age, and disease influence female reproductive performance in Choristoneura conflictana (Lepidoptera: Tortricidae). Annals of the Entomological Society of America, 99(5), 837-844. doi: 10.1603/0013-8746(2006)99[837:BSAADI]2.0.CO;2
Link to related item

File Details

Date Uploaded
Date Modified
Audit Status
Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 188263
Last modified: 2015:10:12 14:47:17-06:00
Filename: AESA_99_2006_837.pdf
Original checksum: efd42982e8f73aca10aee59cb2121577
Well formed: false
Valid: false
Status message: Unexpected error in findFonts java.lang.ClassCastException: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject cannot be cast to edu.harvard.hul.ois.jhove.module.pdf.PdfDictionary offset=2269
Page count: 8
Activity of users you follow
User Activity Date