A5042037921- Avian ecology and behavior
- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Arctic and Antarctic ice dynamics
- Marine animal studies overview
- Mercury impact and mitigation studies
- Animal Vocal Communication and Behavior
- Fire effects on ecosystems
- Genetic and phenotypic traits in livestock
- Climate change and permafrost
- Indigenous Studies and Ecology
- Cryospheric studies and observations
- Ecology and Vegetation Dynamics Studies
- Evolution and Genetic Dynamics
- Bird parasitology and diseases
- Climate variability and models
- Genetic diversity and population structure
- Tree-ring climate responses
Norwegian Polar Institute
2019-2025
Center for Northern Studies
2019-2025
Université du Québec à Rimouski
2012-2025
Animal populations are often comprised of both foraging specialists and generalists. For instance, some individuals show higher site fidelity (spatial specialization) than others. Such individual differences in degree specialization can persist over time-scales months or even years long-lived animals, but the mechanisms leading to these different strategies not fully understood. There is accumulating evidence that variation behaviour shaped by animal personality traits, such as boldness....
It is argued that spruce budworm ( Choristoneura fumiferana (Clemens)) (SBW) outbreaks have tended to be more frequent, severe, and spatially synchronized since the beginning of 20th century. However, few studies assessed long-term (>200 years) variations in SBW outbreak dynamics. We reconstructed history at northern limit temperate forest southern Quebec using dendrochronological material from old buildings five old-growth stands. Our regional tree-ring chronology (1551–1995) represents...
Global warming, combined with an increasing influence of Atlantic Waters in the European Arctic, are causing a so-called Atlantification Arctic. This phenomenon is affecting plankton biomass and communities potential consequences for upper trophic levels. Using long-term data (2005-2020) from high Arctic zooplanktivorous seabird, little auk ( Alle alle ), we tested hypothesis that affects its diet, body condition demography. We based our study on collected three fjords West Spitsbergen,...
Abstract Long-lived species must balance allocation between reproduction and self-maintenance, such a trade-off is expected to affect their foraging behaviour. A bimodal strategy, where individuals alternate long trips for self-maintenance short offspring provisioning, may reflect this compromise. Using tracking data collected over three breeding seasons, we investigated the occurrence of strategy inter-annual variation in decisions among black-legged kittiwakes (Rissa tridactyla)...
Tidewater glacier fronts can represent important foraging areas for Arctic predators. Their ecological importance is likely to change in a warmer Arctic. profitability and use by consumers are expected vary time, but the underlying mechanisms driving such variation remain poorly known. The subglacial plume, originating from meltwater discharge, responsible entrainment transport of zooplankton surface, making them more readily available surface-feeding seabirds. Both discharge abundance known...
Sex-specific genetic structure is a commonly observed pattern among vertebrate species. Facing differential selective pressures, individuals may adopt sex-specific life history traits that ultimately shape variation populations. Although dispersal dynamics are detected in the literature, few studies have used to investigate functional connectivity. The recent use of graph theoretic approaches landscape genetics has demonstrated network capacities describe complex system behaviours where...
Carry-over effects describe the phenomenon whereby an animal's previous conditions influence its subsequent performance. are unlikely to affect individuals uniformly, but factors modulating their strength poorly known. Variation in of carry-over may reflect individual differences pace-of-life: slow-paced, shyly behaved thought favour allocation self-maintenance over current reproduction, compared fast-paced, boldly conspecifics (the pace-of-life syndrome hypothesis). Therefore, detectable on...
Abstract In colonially breeding marine predators, individual movements and colonial segregation are influenced by seascape characteristics. Tidewater glacier fronts important features of the Arctic often described as foraging hotspots. Albeit their documented importance for wildlife, little is known about structuring effect on predator space use. this study, we tested hypothesis that tidewater can influence bird patterns drive spatial among adjacent colonies. We analysed black-legged...
In spite of recent developments in tracking technology, leg bands are still the main marking method songbird population studies. Yet, band-related injury rates and effects such injuries on survival reproductive success have rarely been documented songbirds. Over a 9-year period, we banded 525 male Ovenbirds using numbered aluminum band three celluloid color bands. Of these, 322 individuals returned to our study area at least one subsequent years, including four males (1.2%) missing foot. all...