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Emma Despland on Muck Rack

Emma Despland

As seen in: Wiley Online Library, MDPI, The Conversation, Phys.org, Montreal Gazette, Winnipeg Free Press, Le Devoir, Big News Network, L'actualité, Cottage Life and
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Articles

Predation on Artificial Caterpillars Varies With Vertical Stratification but Not Light Gradients in a Sugar Maple Temperate Forest

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By Mahsa Hakimara, Emma Despland
| Wiley Online Library Verified
1 Introduction Herbivorous insects face selective pressures from both bottom-up forces via host plant quality and availability and top-down forces via predators and parasitoids (Singer and Stireman 2005).
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Impact of light intensity on sugar maple leaf physical traits and consequences for caterpillar preference and performance

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By Mahsa Hakimara, Emma Despland
| Wiley Online Library Verified
INTRODUCTION Intraspecific differences in host plant quality can influence both the preference and performance of herbivorous insects (Gonzáles & Gianoli, 2003). Intraspecific variability, particularly in foliar physical defenses (Choong, 1996; Coley et al., 1985; Murakami & Wada, 1997), is often shaped by the heterogeneous light environments typical of forest ecosystems, leading to significant differences between sunlit and shaded leaves.
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Host plant phenology drives risky larval dispersal in an outbreaking insect defoliator

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By Deepa Pureswaran, Emma Despland, Bastien Bellemin-Noël
| Wiley Online Library Verified
INTRODUCTION Larval dispersal by ballooning has been documented in spiders (Araneae), spider mites (Acari: Tetranychidae) and at least 37 species of moths (Lepidoptera) (Hagstrum & Subramanyam, 2010). To balloon, a larva positions itself exposed to the wind, hangs down from a strand of silk and if air movement is upwards, becomes airborne (Bell et al., 2005). This behaviour is thus dependent on the production of silk.
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