Cadorette-Breton2014

Référence

Cadorette-Breton, Y. (2014) Étude des facteurs régissant la répartition des longicornes (Coleoptera: Cerambycidae) dans les arbres tués par le feu en forêt boréale. Mémoire de maîtrise, Université Laval. (URL )

Résumé

The aim of this study was to define the vertical distribution of longhorned beetle larvae in jack pine and black spruce killed by wildfire in the boreal forest. This study also aimed to determine oviposition preferences of whitespotted sawyer female on hosts. Host suitability was also estimated in order to determine if whitespotted sawyer females make optimal choice maximising larval fitness. Our results showed that the three most abundant longhorned beetle species were spatially and vertically segregated among both tree species and across a burn severity gradient. In laboratory experiments, females of the whitespotted sawyer showed no preference between burned and unburned black spruce boles that were also equally suitable. However, females laid more eggs on burned black spruce compared to burned jack pine, but host suitability was not statistically different. However, results suggest a faster larval development for the black spruce.

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@MASTERSTHESIS { Cadorette-Breton2014,
    TITLE = { Étude des facteurs régissant la répartition des longicornes (Coleoptera: Cerambycidae) dans les arbres tués par le feu en forêt boréale },
    AUTHOR = { Cadorette-Breton, Y. },
    SCHOOL = { Université Laval },
    YEAR = { 2014 },
    NOTE = { CEFTMS, Bauce, E. and Ibarzabal, J. and Hébert, C. },
    ABSTRACT = { The aim of this study was to define the vertical distribution of longhorned beetle larvae in jack pine and black spruce killed by wildfire in the boreal forest. This study also aimed to determine oviposition preferences of whitespotted sawyer female on hosts. Host suitability was also estimated in order to determine if whitespotted sawyer females make optimal choice maximising larval fitness. Our results showed that the three most abundant longhorned beetle species were spatially and vertically segregated among both tree species and across a burn severity gradient. In laboratory experiments, females of the whitespotted sawyer showed no preference between burned and unburned black spruce boles that were also equally suitable. However, females laid more eggs on burned black spruce compared to burned jack pine, but host suitability was not statistically different. However, results suggest a faster larval development for the black spruce. },
    URL = { https://corpus.ulaval.ca/jspui/handle/20.500.11794/25409 },
    TIMESTAMP = { 2019-10-10 },
}

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