CariseyBauce2002

Référence

Carisey, N. and Bauce, E. (2002) Does nutrition-related stress carry over to spruce budworm, Choristoneura fumiferana (Lepidoptera : Tortricidae) progeny? Bulletin of Entomological Research, 92(2):101-108.

Résumé

Three different patterns of feeding of sixth-instar spruce budworm, Choristoneura fumiferana Clemens were simulated in the laboratory. Larvae were fed artificial diets whose nitrogen and total soluble sugar contents varied according to levels similar to those found in three types of balsam fir, Abies balsamea (L.) Miller foliage (current-year foliage from middle and lower crown sections and one-year-old foliage). The biological performance of offspring was studied according to the nutrition of their parents. Although food quality had no impact on pupal weight of female parents and individual mean egg weight, progeny fitness was influenced by parental nutrition. Old foliage simulated diet, poor in nitrogen, clearly affected the early larval development of progeny, especially the percent of egg hatch and first-instar survival. Lower crown current-year foliage simulated diet, with low total soluble sugar content, reduced the first-instar survival of the progeny. However, the selective pressure exerted by low food qualities on the parental generation and on the early stages of their progenies resulted in C. fumiferana populations having higher tolerance to starvation and higher survival after the diapause period. These results highlighted the potentially direct and indirect effects of C. fumiferana parental nutrition on the next generation. The patterns of feeding of parental generations would appear to affect the quality and size of subsequent populations through several selections on the different life-history stages of both generations.

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@ARTICLE { CariseyBauce2002,
    AUTHOR = { Carisey, N. and Bauce, E. },
    TITLE = { Does nutrition-related stress carry over to spruce budworm, Choristoneura fumiferana (Lepidoptera : Tortricidae) progeny? },
    JOURNAL = { Bulletin of Entomological Research },
    YEAR = { 2002 },
    VOLUME = { 92 },
    PAGES = { 101-108 },
    NUMBER = { 2 },
    NOTE = { 549CK Times Cited:3 Cited References Count:50 },
    ABSTRACT = { Three different patterns of feeding of sixth-instar spruce budworm, Choristoneura fumiferana Clemens were simulated in the laboratory. Larvae were fed artificial diets whose nitrogen and total soluble sugar contents varied according to levels similar to those found in three types of balsam fir, Abies balsamea (L.) Miller foliage (current-year foliage from middle and lower crown sections and one-year-old foliage). The biological performance of offspring was studied according to the nutrition of their parents. Although food quality had no impact on pupal weight of female parents and individual mean egg weight, progeny fitness was influenced by parental nutrition. Old foliage simulated diet, poor in nitrogen, clearly affected the early larval development of progeny, especially the percent of egg hatch and first-instar survival. Lower crown current-year foliage simulated diet, with low total soluble sugar content, reduced the first-instar survival of the progeny. However, the selective pressure exerted by low food qualities on the parental generation and on the early stages of their progenies resulted in C. fumiferana populations having higher tolerance to starvation and higher survival after the diapause period. These results highlighted the potentially direct and indirect effects of C. fumiferana parental nutrition on the next generation. The patterns of feeding of parental generations would appear to affect the quality and size of subsequent populations through several selections on the different life-history stages of both generations. },
    KEYWORDS = { egg size variation gypsy-moth lymantria-dispar overwintering survival food utilization larval density weight butterflies impact growth },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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