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Permanent link (DOI): https://doi.org/10.7939/R3V11B

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Seasonal phenology and reproductive behaviour of Dioryctria species Zeller (Lepidoptera: Pyralidae) in British Columbian seed orchards Open Access

Descriptions

Other title
Subject/Keyword
Multiple mating
Dioryctria
Seed orchard
Reproduction
Phenology
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Whitehouse, Caroline Marie
Supervisor and department
Evenden, Maya (Biological Sciences)
Examining committee member and department
Strong, Ward (External)
Sperling, Felix (Biological Sciences)
Erbilgin, Nadir (Renewable Resources)
Department
Department of Biological Sciences
Specialization

Date accepted
2011-01-10T22:48:07Z
Graduation date
2011-06
Degree
Master of Science
Degree level
Master's
Abstract
Seasonal phenology and mating frequency of moths in the genus Dioryctria found sympatrically in north Okanagan Valley, British Columbia seed orchards were assessed. Female moths in the abietella, auranticella, ponderosae and schuetzeella species groups were trapped in Douglas-fir, lodgepole pine and interior spruce stands. Most species were univoltine based on one peak of flight activity per season. There is evidence that the abietella group are bivoltine in this region. Females in the abietella and auranticella groups are polyandrous; ponderosae and schuetzeella females are monandrous. The sole abietella species, D. abietivorella, recorded in British Columbia can have substantial economic impacts on seed production in commercial seed orchards. Factors influencing reproductive behaviour, longevity and fecundity of D. abietivorella were investigated. Females are synovigenic and have an income-breeding mating strategy. Reproductive behaviours are delayed post-eclosion and signalling receptivity by females coincides with egg maturation, increasing with age. Female D. abietivorella experience trade-offs between reproduction and longevity.
Language
English
DOI
doi:10.7939/R3V11B
Rights
License granted by Caroline Whitehouse (cmw7@ualberta.ca) on 2011-01-10T16:34:12Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File format: pdf (Portable Document Format)
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File size: 2559099
Last modified: 2015:10:12 14:35:48-06:00
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File author: Caroline Whitehouse
Page count: 175
File language: en-US
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