Publications by authors named "M Cusson"

Background: Flight can drastically enhance dispersal capacity and is a key trait defining the potential of exotic insect species to spread and invade new habitats. The phytophagous European spongy moths (ESM, Lymantria dispar dispar) and Asian spongy moths (ASM; a multi-species group represented here by L. d.

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Assessments of greenhouse gas (GHG) emissions in managed areas are facing various challenges. A non-flow-through, non-steady-state (NFT-NSS) chamber coupled to a frame permanently inserted into the landfilled substrates is a standard method for quantifying GHG emissions in managed areas, such as pulp and paper mill sludge (PPMS) landfill sites. Frequent measurements are needed to minimize uncertainties on GHG emission factors at the landfill site scale.

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Article Synopsis
  • Currents significantly influence the distribution of marine species, including eelgrass (Zostera marina), which we traced back to its origins in the Northwest Pacific using genetic data.
  • We found two distinct Pacific clades and identified two main colonization events into the Atlantic through the Canadian Arctic, with evidence that the eelgrass ecosystems have existed there for about 243,000 years.
  • The Atlantic populations emerged much more recently, around 19,000 years ago, and show lower genetic diversity compared to Pacific populations, raising concerns about their adaptability to climate change.
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The spongy moth, , is a classic example of an invasive pest accidentally introduced from Europe to North America, where it has become one of the most serious forest defoliators, as in its native range. The present study was aimed at (i) identifying the current northern limit of 's Eurasian range and exploring its northward expansion in Canada using pheromone trap data, and (ii) comparing northern Eurasian populations with those from central and southern regions with respect to male flight phenology, the sums of effective temperatures (SETs) above the 7 °C threshold necessary for development to the adult stage, and heat availability. We show that the range of in Eurasia now reaches the 61st parallel, and comparisons with historical data identify the average speed of spread as 50 km/year.

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