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Body size - realized fecundity relationship of whitemarked tussock moth

Published online by Cambridge University Press:  02 April 2012

Graham S. Thurston  and
James D. MacGregor
Graham S. Thurston*
Affiliation:
Natural Resources Canada, Canadian Forest Service – Atlantic, PO Box 4000, Fredericton, New Brunswick, Canada E3B 5P7
James D. MacGregor
Affiliation:
417 MacLean Street, New Glasgow, Nova Scotia, Canada B2H 4N6
*
1Corresponding author (e-mail: gthursto@nrcan.gc.ca).
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Extract

Insect body size and fecundity are frequently reported to be correlated (e.g., Miller 1957; Dempster 1971; Beckwith 1976; Hough and Pimental 1978; Gilbert 1984; Carroll and Quiring 1993; Honek 1993; Spurgeon et al. 1995; Tammaru et al. 1996, 2002; Nylin and Gotthard 1998). The main body of evidence for this relationship stems from laboratory experiments where potential fecundity (or total egg production) is most often measured (Tammaru et al. 1996); very little evidence is available from field studies (Sopow and Quiring 1998). Realized fecundity (or total eggs laid) is affected by many extrinsic factors (e.g., Leather 1988; Carroll and Quiring 1993; Tammaru et al. 1996), suggesting that fecundity measures derived from laboratory experimentation may not be useful in nature where abiotic conditions may be highly variable (Carroll and Quiring 1993; Nylin and Gotthard 1998; Sopow and Quiring 1998).

Type
Articles
Information
The Canadian Entomologist , Volume 135 , Issue 4 , August 2003 , pp. 583 - 586
Copyright
Copyright © Entomological Society of Canada 2003

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