ColasurdoGelinasDespland2009

Reference

Colasurdo, N., Gelinas, Y., Despland, E. (2009) Larval nutrition affects life history traits in a capital breeding moth. Journal of Experimental Biology, 212(12):1794-1800.

Abstract

Fitness depends not only on resource uptake but also on the allocation of these resources to various life history functions. This study explores the life-history consequences of larval diet in terms not only of larval performance but also of adult body composition and reproductive traits in the forest tent caterpillar (Malacosoma disstria Hubner). Caterpillars were reared on their preferred tree host, trembling aspen (Populus tremuloides), or on one of three artificial foods: high protein: low carbohydrate, equal protein-to-carbohydrate ratio or low protein: high carbohydrate. Survivorship, larval development rate and adult body size were lowest on the carbohydrate-biased diet and similar on the protein-biased and equal-ratio diets. Fecundity increased with body size but did not otherwise differ between diets. Moths reared on the carbohydrate-biased diet allocated a lower proportion of their mass to the ovaries and more to somatic growth whereas those on equal-ratio and protein-biased diets allocated more to reproductive tissue and less to somatic tissue. These differences in allocation to reproduction arose from differences in the size of eggs, an index of offspring quality. No differences were found in lipid and protein content of female ovaries, accessory glands or somatic tissue, or of the whole body of male moths. The findings show that physiological processes regulate the composition of the different components of the adult body. Diet effects occur as differences in overall body size and in relative allocation to these components. Although lepidopterans can, to a large extent, compensate post-ingestively for nutritionally deficient diets, investment in reproduction vs somatic growth depends on the nutrients available.

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@ARTICLE { ColasurdoGelinasDespland2009,
    AUTHOR = { Colasurdo, N. and Gelinas, Y. and Despland, E. },
    TITLE = { Larval nutrition affects life history traits in a capital breeding moth },
    JOURNAL = { Journal of Experimental Biology },
    YEAR = { 2009 },
    VOLUME = { 212 },
    PAGES = { 1794-1800 },
    NUMBER = { 12 },
    MONTH = { jun },
    AF = { Colasurdo, NadiaEOLEOLGelinas, YvesEOLEOLDespland, Emma },
    C1 = { [Colasurdo, Nadia; Despland, Emma] Concordia Univ, Dept Biol, Montreal, PQ H4B 1R6, Canada.EOLEOL[Gelinas, Yves] Concordia Univ, Dept Chem & Biochem, Montreal, PQ H4B 1R6, Canada. },
    DE = { Malacosoma disstria; forest tent caterpillar; fecundity; resourceEOLEOLallocation; life history; larval nutrition; post-ingestive processing;EOLEOLprotein:carbohydrate ratio; reproduction-growth tradeoff },
    DI = { 10.1242/jeb.027417 },
    EM = { despland@alcor.concordia.ca },
    FU = { Canadian Natural Sciences and Engineering Research Council ; FondEOLEOLQuebecois pour la Recherche en Nature et Technologies ; Canadian FundEOLEOLfor Innovation },
    FX = { We would like to thank Paul Albert, Barbara Woodside, Daniel McLaughlinEOLEOLand two anonymous reviewers for their comments and suggestions. E. D.EOLEOLwas supported by funding from the Canadian Natural Sciences andEOLEOLEngineering Research Council, the Fond Quebecois pour la Recherche enEOLEOLNature et Technologies and the Canadian Fund for Innovation. TheEOLEOLauthors declare that all the experiments comply with the current lawsEOLEOLof Canada. },
    GA = { 451FO },
    J9 = { J EXP BIOL },
    JI = { J. Exp. Biol. },
    LA = { English },
    NR = { 48 },
    PA = { BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE CB4 4DL,EOLEOLCAMBS, ENGLAND },
    PG = { 7 },
    PI = { CAMBRIDGE },
    RP = { Despland, E, Concordia Univ, Dept Biol, 7141 Sherbrooke W, Montreal, PQEOLEOLH4B 1R6, Canada. },
    SC = { Biology },
    SN = { 0022-0949 },
    TC = { 0 },
    UT = { ISI:000266456300012 },
    ABSTRACT = { Fitness depends not only on resource uptake but also on the allocation of these resources to various life history functions. This study explores the life-history consequences of larval diet in terms not only of larval performance but also of adult body composition and reproductive traits in the forest tent caterpillar (Malacosoma disstria Hubner). Caterpillars were reared on their preferred tree host, trembling aspen (Populus tremuloides), or on one of three artificial foods: high protein: low carbohydrate, equal protein-to-carbohydrate ratio or low protein: high carbohydrate. Survivorship, larval development rate and adult body size were lowest on the carbohydrate-biased diet and similar on the protein-biased and equal-ratio diets. Fecundity increased with body size but did not otherwise differ between diets. Moths reared on the carbohydrate-biased diet allocated a lower proportion of their mass to the ovaries and more to somatic growth whereas those on equal-ratio and protein-biased diets allocated more to reproductive tissue and less to somatic tissue. These differences in allocation to reproduction arose from differences in the size of eggs, an index of offspring quality. No differences were found in lipid and protein content of female ovaries, accessory glands or somatic tissue, or of the whole body of male moths. The findings show that physiological processes regulate the composition of the different components of the adult body. Diet effects occur as differences in overall body size and in relative allocation to these components. Although lepidopterans can, to a large extent, compensate post-ingestively for nutritionally deficient diets, investment in reproduction vs somatic growth depends on the nutrients available. },
    KEYWORDS = { FOREST TENT CATERPILLAR; DIETARY SELF-SELECTION; HELIOTHIS-ZEA LARVAE; EGG SIZE VARIATION; GENERALIST CATERPILLAR; MALACOSOMA PLUVIALE; RESOURCE-ALLOCATION; LYMANTRIA-DISPAR; OFFSPRING SIZE; GYPSY-MOTH },
    OWNER = { sobru1 },
    PUBLISHER = { Company Of Biologists Ltd },
    TIMESTAMP = { 2009.06.22 },
}

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