Christian Roy

Christian Roy
Environment Canada | EC · Canadian Wildlife Service

PhD

About

19
Publications
3,233
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63
Citations
Introduction
Christian Roy currently works at the Canadian Wildlife Service, Environment and Climate Change Canada. Christian's research is related mainly to the management and conservation of migratory birds.
Additional affiliations
May 2018 - present
Environment Canada
Position
  • Head management unit
August 2015 - May 2018
Environment Canada
Position
  • Analyst
March 2015 - August 2015
Université du Québec à Rimouski UQAR
Position
  • PostDoc Position
Education
September 2008 - January 2015
Laval University
Field of study
  • Forestry
September 2004 - July 2008
Université du Québec en Abitibi-Témiscamingue
Field of study
  • Biology
September 2000 - February 2004

Publications

Publications (19)
Conference Paper
Full-text available
From 1991 to 2005, we surveyed American woodcock (Scolopax minor; hereafter, woodcock) hunters in 3 Canadian provinces to assess hunter satisfaction. Across all submitted reports, 42.0% of the respondents reported a 'poor' experience, 35.2% of the hunters reported an 'average' experience, and 22.1% of the hunters reported a 'good' experience. We an...
Conference Paper
Full-text available
We used data from the Canadian component of the annual American Woodcock Singing-ground Survey (SGS) and data from the Canadian National Harvest Survey between 1975 and 2015 to assess temporal fluctuations in the population index, the number of American woodcock (Scolopax minor; hereafter, woodcock) harvested in Canada, and the proportion of succes...
Article
Full-text available
Delays in waterfowl autumn migration have been widely reported by hunters and ornithologists throughout North America. The implications of such delays are vast, with potential effects on the efficacy of population management, reduced social and economic opportunities, and reduced resource availability by overuse and over-grazing in key staging area...
Article
Full-text available
We applied a dependent double-observer method for helicopter surveys and developed a hierarchical Bayesian model as a means to adjust counts of waterfowl for incomplete detection. We conducted our study using 52 plots in Labrador, Canada. A designated pair of primary observers reported counts and location of all waterfowl flocks that they detected...
Article
Full-text available
Shorebirds have been harvested for centuries on Caribbean islands and along the northern coast of South America. Although the magnitude of modern harvest pressure on shorebirds within this region is incompletely quantified, accumulating evidence indicates that harvest could limit the growth of certain shorebird populations. Central to understanding...
Article
Determining the source areas of harvested individuals is important for effective conservation and management of migratory game birds. Banding has provided much information about source areas, but obtaining samples of marked individuals representative of all potential breeding areas is difficult for most species. To add to previous knowledge of harv...
Article
Full-text available
Substantial effort has been dedicated to developing reliable monitoring schemes for North American bird populations, but our ability to monitor bird populations in the boreal forest remains limited because of the sparsity of long-term data sets, particularly in northerly regions. Given the importance of the boreal forest for many migratory birds, w...
Article
Full-text available
Emulating natural disturbance has become a paradigm for biodiversity retention in forest management. This study evaluates the extent to which harvest management practices have created stands that emulate natural fire disturbance from the perspective of bird communities in Ontario, Canada. We compared the relative abundance of forest landbirds at th...
Article
We present R2MCDS, an R package that provides tools to call the multiple-covariate distance sampling (MCDS) engine from the Distance 6.2 software in the R environment. We built R2MCDS for the analysis of line transects data collected using distance intervals. Based on the user inputs, the package writes a command file, runs the MCDS engine and re-i...
Article
Natural forests likely will be unable to fulfill society’s needs sustainably for wood fiber in the near future. In an attempt to meet increasing demands while protecting intact forests, producers have increasingly considered alternative sources of timber, such as intensively managed plantations. In regions that are economically dépendent on forest...
Article
Population models commonly assume that the demographic parameters are spatially invariant, but there is considerable evidence that population growth rate (r) and the strength of density dependence (β) can vary over a species' range. To address this issue we developed a spatially explicit Gompertz population model based on the spatially varying coef...
Article
Full-text available
The wetlands in the Prairie Pothole Region and in the Great Plains are notorious for their sensitivity to weather variability. These wetlands have been the focus of considerable attention because of their ecological importance and because of the expected impact of climate change. Few models in the literature, however, take into account spatial vari...
Article
Full-text available
Assessing spatial variation in waterfowl harvest probabilities from banding data is challenging because reporting and recovery probabilities have distinct spatial patterns that covary temporally with harvesting regulations, hunter effort, and reporting methods. We analyzed direct band recovery data from American black ducks banded on the Canadian b...
Thesis
Full-text available
The main objective of my thesis was to quantify the spatial variation in duck populations in North America and their main breeding habitat and assess the importance of this variability. I first present a study case on the Mallard (Anas platyrhynchos) that aim at assessing at how using informative priors on population parameters effects the conclusi...
Article
Natural forests will likely be unable to sustainably fulfill society needs for wood fibers and intensively managed plantations could be an alternative source of timber in the future. Abandoned farm fields are often targeted for conversion, as they are already disturbed sites: however, they also represent high-quality habitat for species such as sno...
Thesis
Full-text available
Au Québec, il devient de plus en plus apparent qu'en aménagement forestier, l'atteinte de la conservation de la biodiversité ne pourra pas être réalisée sans une diminution substantielle du volume ligneux prélevé en forêt publique. Afin de maintenir des niveaux d'approvisionnement stables, certains scientifiques ont proposé d'appliquer le concept d...

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