A5060540464- Marine animal studies overview
- Arctic and Antarctic ice dynamics
- Marine and fisheries research
- Underwater Acoustics Research
- Avian ecology and behavior
- Aerospace Engineering and Energy Systems
- Wildlife Ecology and Conservation
- Arctic and Russian Policy Studies
- Animal Vocal Communication and Behavior
- Marine and coastal plant biology
- Indigenous Studies and Ecology
- Coral and Marine Ecosystems Studies
- Animal Ecology and Behavior Studies
University of Manitoba
2022-2025
Fisheries and Oceans Canada
2021-2022
Norwegian Polar Institute
2018
National Oceanography Centre
2018
University of Southampton
2018
ABSTRACT Why animals migrate is a fundamental question in biology. While the adaptive significance of some animal migrations well understood (e.g., to find food, pursue more‐favorable habitats, spawn, or give birth), others remain unknown. The whale migration, for example, unresolved and multiple hypotheses have been proposed explain it. One recently hypothesis that challenges long‐standing “feeding‐breeding” migration model “feeding‐molting” model, where whales undertake latitudinal warmer...
This study used 13 years of cetacean sighting data (2002–2014) from waters around the Svalbard Archipelago to determine key habitats for year-round resident species as well seasonally species, and explore spatial overlap between these groups via a combination kernel density estimation Maxent modelling. The set consists observations made by research vessels conducting various marine studies, coast guard ships marine-cruise tourist operators. Data are reported seasonal period in which there is...
Eastern Beaufort Sea belugas face threats from increasing vessel traffic and decreasing availability of Arctic cod driven by climate change. This necessitates an improved understanding the environmental drivers their foraging habitat suitability to make predictions on consequences change inform management decisions. We incorporated animal behaviour into models through comparing locations dives associated with randomly selected quantify summer preferences. tested whether varied between months...
Despite the universal fascination with tusk of narwhal, function this long, spiraled tooth is still debated, primarily because few people have observed how narwhals ( Monodon monoceros ) use their tusks in wild. Using an unmanned aerial vehicle (UAV), we recorded previously unreported interactions between multiple narwhals, Arctic char Salvelinus alpinus and glaucous gulls Larus hyperboreus Canada’s High Arctic. Narwhals were chasing using to hit, manipulate influence behavior fish....
Dive behavior represents multiple ecological functions for marine mammals, but our understanding of dive characteristics is typically limited by the resolution or longevity tagging studies. Knowledge on time-depth structures dives can provide insight into behaviors represented vertical movements; furthering importance habitats occupied, seasonal shifts in activity, and energetic consequences targeting prey at a given depth. Given incomplete Eastern Beaufort Sea (EBS) beluga whale over an...
Abstract Aim Identify hotspots and areas of high species richness for Arctic marine mammals. Location Circumpolar Arctic. Methods A total 2115 biologging devices were deployed on mammals from 13 in the 2005 to 2019. Getis‐Ord G i * calculated based number individuals grid cells each phylogenetic groups (nine pinnipeds, three cetaceans, all species) with identified summer (Jun‐Nov), winter (Dec‐May) entire year. Seasonal habitat differences among species’ investigated using Principal...
Abstract Arctic marine mammals face a multitude of challenges linked to climate change, including increasing anthropogenic noise from ship traffic. The beluga whale ( Delphinapterus leucas ), predominately endemic cetacean, relies heavily on acoustic communication, with documented overlap between their vocalizations and hearing range noise. Some belugas migrate through areas the highest levels traffic in Pacific exposure is highly probable. Here, we document responses nine satellite‐tagged...
Migration enables organisms to access resources in separate regions that have predictable but asynchronous spatiotemporal variability habitat quality. The classical migration syndrome is defined by key traits including directionally persistent long-distance movements during which maintenance activities are suppressed. But recently, seasonal round-trip frequently been considered constitute irrespective of the required meet this movement type, conflating common outcomes with for a mechanistic...
Abstract Diel cycles in marine predator diving behaviour centre around the light‐mediated diel vertical migration (DVM) of prey, and are considered critical for optimizing foraging limiting competition across global seascapes. Yet, our understanding is based primarily on examining relative depth usage between constant day/night with no formal investigation how varying light regimes interact abiotic factors to shape activity. The extreme seasonal (midnight sun, polar night, cycle) Arctic...
Abstract Background We report compelling evidence suggesting a predation event of pop-up satellite archival tagged anadromous Dolly Varden ( Salvelinus malma ) by marine mammal during summer in the Beaufort Sea based on abrupt changes temperature and vertical movements. This observation provides insight predator avoidance behaviour predator’s feeding frequency while tag was ingested. Based published distribution ecology information, we presumed beluga whale Delphinapterus leucas )....