QCBS Students

Jeremy Larroque

Université de Montréal
Postdoctoral fellow candidate

Supervisor: Patrick M.A. James
Start: 2017-01-09
End: 2017-12-31
Personal page


Project
Spruce budworm spatio-temporal population genetics
The spruce budworm (SBW; Choristoneura fumiferana) is a lepidopteran forest pest that devastates huge areas of spruce and fir forest. This defoliator undergoes population oscillations of 30-35 years, which typically include 5-10 years at high outbreak levels causing extensive forest mortality, reducing tree growth and influencing timber and fibre production. SBW outbreak dynamics are shaped by the complex interactions among climate, forest structure, communities of natural enemies, and dispersal. Despite the significance of movement to the spatial dynamics of SBW outbreaks, little is known about SBW dispersal, how it varies with spatial context and over course of an outbreak, and how it affects spatial synchrony in outbreak dynamics. Using >1000 SBW larvae sampled over several years and genotyped at >190000 SNP loci, we apply tools and methods from spatial population genetics to characterize genetic connectivity among outbreak patches in the current outbreak in eastern north America. Using this information on genetic connectivity, and how it varies within and among years, we will infer patterns of gene flow and dispersal.
Publications
1- Age and sex-dependent effects of landscape cover and trapping on the spatial genetic structure of the stone marten (Martes foina)
Larroque, Jeremy, Sandrine Ruette, Jean-Michel Vandel, Guillaume Queney, Sébastien Devillard
2016 Conservation Genetics

2- Quantifying the age- and sex-dependent morphological variation in two syntopic mustelids: Martes martes and Martes foina
Ruette, Sandrine, Jérémy Larroque, Michel Albaret, Jean-Michel Vandel, Sébastien Devillard
2015 Mammalian Biology - Zeitschrift für Säugetierkunde

3- Divergent landscape effects on genetic differentiation in two populations of the European pine marten (Martes martes)
Larroque, Jeremy, Sandrine Ruette, Jean-Michel Vandel, Sébastien Devillard
2015 Landscape Ecology

4- Linking habitat characteristics with genetic diversity of the European pine marten (Martes martes) in France
Mergey, Marina, Jérémy Larroque, Sandrine Ruette, Jean-Michel Vandel, Rémi Helder, Guillaume Queney, Sébastien Devillard
2012 European Journal of Wildlife Research

5- “False heat,” big testes, and the onset of natal dispersal in European pine Martens (Martes martes)
Larroque, Jeremy, Sandrine Ruette, Jean-Michel Vandel, Sébastien Devillard
2014 European Journal of Wildlife Research

6- Where to sleep in a rural landscape? A comparative study of resting sites pattern in two syntopicMartesspecies
Larroque, Jeremy, Sandrine Ruette, Jean-Michel Vandel, Sébastien Devillard
2015 Ecography