Christian Dussault
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View article: Environmental factors determining the survival of winter ticks (Dermacentor albipictus) at different life stages in Québec, Canada
Environmental factors determining the survival of winter ticks (Dermacentor albipictus) at different life stages in Québec, Canada Open
Ticks are responsible for large economic losses because of their impact on livestock and wildlife. In recent years, winter ticks (Dermacentor albipictus) have caused mass mortalities in moose (alces) populations of North America, leading t…
View article: Variation in prevalence and intensity of macroparasites in moose and their interactions with winter tick load in eastern Canada
Variation in prevalence and intensity of macroparasites in moose and their interactions with winter tick load in eastern Canada Open
Wild animals are infected with a large diversity and abundance of parasites that can affect their behavior, growth, body condition, and ultimately their survival. Although the adverse effects of parasites and the mechanisms involved in the…
View article: Linking weather conditions and winter tick abundance in moose
Linking weather conditions and winter tick abundance in moose Open
Climate change may modify species distribution to higher latitudes, resulting in potential changes of parasite diversity and transmission dynamics in areas where animals might not be locally adapted to these new parasite species. In additi…
View article: Evidence of migratory coupling between grey wolves and migratory caribou
Evidence of migratory coupling between grey wolves and migratory caribou Open
Large‐scale animal migrations influence population and community dynamics along with ecosystem functioning. The migratory coupling concept posits that movement of migrant prey can lead to large‐scale movements of predators. In northern eco…
View article: Science‐informed policy decisions lead to the creation of a protected area for a wide‐ranging species at risk
Science‐informed policy decisions lead to the creation of a protected area for a wide‐ranging species at risk Open
Protected areas are needed to conserve nature and biodiversity worldwide. The province of Québec (Canada) recently established a large wilderness area affording significant habitat protection for boreal woodland caribou ( Rangifer tarandus…
View article: Determinants of migration trajectory and movement rate in a long-distance terrestrial mammal
Determinants of migration trajectory and movement rate in a long-distance terrestrial mammal Open
Animal migrations occur in many taxa and are considered an adaptive response to spatial or temporal variations in resources. Human activities can influence the cost-benefit trade-offs of animal migrations, but evaluating the determinants o…
View article: Untangling Effects of Human Disturbance and Natural Factors on Mortality Risk of Migratory Caribou
Untangling Effects of Human Disturbance and Natural Factors on Mortality Risk of Migratory Caribou Open
Human disturbances are rapidly increasing in northern and Arctic regions, raising concerns about the recovery and persistence of declining caribou (Rangifer tarandus) populations. Yet, the consequences of behavioral responses toward human …
View article: Combining stable isotopes, morphological, and molecular analyses to reconstruct the diet of free‐ranging consumers
Combining stable isotopes, morphological, and molecular analyses to reconstruct the diet of free‐ranging consumers Open
Accurate estimates of animal diet composition are essential to untangle complex interactions in food webs. Biomarkers and molecular tools are increasingly used to estimate diet, sometimes alongside traditional dietary tracing methods. Yet …
View article: Natal habitat preference induction in large mammals—Like mother, like child?
Natal habitat preference induction in large mammals—Like mother, like child? Open
Habitat selection has received considerable attention from ecologists during the last decades, yet the underlying forces shaping individual differences in habitat selection are poorly documented. Some of these differences could be explaine…
View article: Coping with strong variations in winter severity: plastic habitat selection of deer at high density
Coping with strong variations in winter severity: plastic habitat selection of deer at high density Open
Lay SummaryThe capacity of animals to alter their foraging strategy is essential to cope with changing environmental conditions and survive at high population densities. White-tailed deer used different foraging tactics between mild and ha…
View article: Space use by gray wolves (<i>Canis lupus</i>) in response to simulated howling: a case study and a call for further investigation
Space use by gray wolves (<i>Canis lupus</i>) in response to simulated howling: a case study and a call for further investigation Open
Simulated wolf howling sessions are a popular ecotourism activity, but no exhaustive evaluation has been made on their potential impacts on wolf ecology. We evaluated the effects of simulated wolf howling sessions on the space use of gray …
View article: Simulated drilling noise affects the space use of a large terrestrial mammal
Simulated drilling noise affects the space use of a large terrestrial mammal Open
Wildlife is exposed to increasing anthropogenic disturbances related to shale oil and gas extraction in response to rising worldwide demands. As these disturbances increase in intensity and occurrence across the landscape, understanding th…
View article: Weather conditions and variation in timing of spring and fall migrations of migratory caribou
Weather conditions and variation in timing of spring and fall migrations of migratory caribou Open
Species that make long-distance migrations face changes in the phenology of natural processes linked to global climate changes. Mismatch between the onset of resources and arrival on breeding grounds or changes in the conditions faced duri…
View article: Winter severity modulates the benefits of using a habitat temporally uncoupled from browsing
Winter severity modulates the benefits of using a habitat temporally uncoupled from browsing Open
Resources whose abundance is not affected by the density of the consumer population, namely donor‐controlled resources, are ubiquitous. Donor‐controlled resources can act as food subsidies when they sustain consumer populations at higher d…
View article: Caribou avoiding wolves face increased predation by bears – <scp>C</scp>aught between <scp>S</scp>cylla and <scp>C</scp>harybdis
Caribou avoiding wolves face increased predation by bears – <span>C</span>aught between <span>S</span>cylla and <span>C</span>harybdis Open
Summary Prey may trade off resource acquisition with mortality risk by using various habitat selection strategies. Empirical assessments have shown that the functional and numerical responses of predators to human disturbances are variable…
View article: Appendix A. Comparison of four temporal windows for the evaluation of antipredator responses of caribou to wolf proximity.
Appendix A. Comparison of four temporal windows for the evaluation of antipredator responses of caribou to wolf proximity. Open
Comparison of four temporal windows for the evaluation of antipredator responses of caribou to wolf proximity.