FuentealbaBauce2012a

Référence

Fuentealba, A., Bauce, E. (2012) Carry-over effect of host nutritional quality on performance of spruce budworm progeny. Bulletin of Entomological Research, 102(3):275-284. (Scopus )

Résumé

The effect of host nutritional quality on spruce budworm (Choristoneura fumiferana (Clemens)) parental and offspring performance was studied using field and laboratory rearing experiments, and foliar chemical analyses. Foliage of balsam fir (Abies balsamea (L.) Mill.), white spruce (Picea glauca (Moench) Voss) and black spruce (P. mariana (Mill.) BSP) was used to rear the parental generation in the field, whereas an artificial diet was used to rear the progeny under laboratory conditions. Important differences in the food quality were provided by the three hosts. Black spruce foliage had higher concentrations of certain monoterpene deterrents and total phenolics, together with stronger seasonal declines in nutrients such as N, P and Mg, compared with the other hosts. We hypothesise that this trend may be related to poor performance and survival of the progeny. Laboratory rearing showed that progeny of parents that fed on black spruce exhibited longer developmental times and greater mortality, and had lower pupal mass than progeny of parents fed on the other hosts. Further, artificial food-fed progeny of insects reared on black spruce reached sixth-instar later, with lower mass, and exhibited higher relative growth rate (RGR) than progeny of parents fed on the other hosts. These results suggest nutritionally-based parental effects. These results also confirmed that the quality of food consumed by the parents can influence the fitness of the next generation. © 2011 Cambridge University Press.

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@ARTICLE { FuentealbaBauce2012a,
    AUTHOR = { Fuentealba, A. and Bauce, E. },
    TITLE = { Carry-over effect of host nutritional quality on performance of spruce budworm progeny },
    JOURNAL = { Bulletin of Entomological Research },
    YEAR = { 2012 },
    VOLUME = { 102 },
    PAGES = { 275-284 },
    NUMBER = { 3 },
    ABSTRACT = { The effect of host nutritional quality on spruce budworm (Choristoneura fumiferana (Clemens)) parental and offspring performance was studied using field and laboratory rearing experiments, and foliar chemical analyses. Foliage of balsam fir (Abies balsamea (L.) Mill.), white spruce (Picea glauca (Moench) Voss) and black spruce (P. mariana (Mill.) BSP) was used to rear the parental generation in the field, whereas an artificial diet was used to rear the progeny under laboratory conditions. Important differences in the food quality were provided by the three hosts. Black spruce foliage had higher concentrations of certain monoterpene deterrents and total phenolics, together with stronger seasonal declines in nutrients such as N, P and Mg, compared with the other hosts. We hypothesise that this trend may be related to poor performance and survival of the progeny. Laboratory rearing showed that progeny of parents that fed on black spruce exhibited longer developmental times and greater mortality, and had lower pupal mass than progeny of parents fed on the other hosts. Further, artificial food-fed progeny of insects reared on black spruce reached sixth-instar later, with lower mass, and exhibited higher relative growth rate (RGR) than progeny of parents fed on the other hosts. These results suggest nutritionally-based parental effects. These results also confirmed that the quality of food consumed by the parents can influence the fitness of the next generation. © 2011 Cambridge University Press. },
    COMMENT = { Export Date: 28 May 2012 Source: Scopus CODEN: BEREA doi: 10.1017/S0007485311000617 },
    ISSN = { 00074853 (ISSN) },
    KEYWORDS = { black spruce, food quality, insect performance, parental effect, spruce budworm },
    OWNER = { Luc },
    TIMESTAMP = { 2012.05.28 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84861050909&partnerID=40&md5=2f23170bf0c5c870abecb87ad77c3993 },
}

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