A5045680045- Marine animal studies overview
- Arctic and Antarctic ice dynamics
- Avian ecology and behavior
- Cryospheric studies and observations
- Isotope Analysis in Ecology
- Marine and fisheries research
- Species Distribution and Climate Change
- Polar Research and Ecology
- Animal Behavior and Reproduction
- Aerospace Engineering and Energy Systems
- Winter Sports Injuries and Performance
- Genetic and phenotypic traits in livestock
- International Maritime Law Issues
- Marine and coastal ecosystems
- Conservation, Ecology, Wildlife Education
- Wildlife Ecology and Conservation
- Ocean Acidification Effects and Responses
- Climate variability and models
- Reservoir Engineering and Simulation Methods
- Coral and Marine Ecosystems Studies
- Indigenous Studies and Ecology
- Underwater Acoustics Research
- Marine and coastal plant biology
- Fish Ecology and Management Studies
Centre National de la Recherche Scientifique
2015-2025
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques
2017-2025
Institut de Recherche pour le Développement
2015-2025
University of Minnesota
2021-2024
Sorbonne Université
2015-2024
Woods Hole Oceanographic Institution
2018-2024
University of Bergen
2024
Écologie Marine Tropicale des Océans Pacifique et Indien
2022-2023
Centre d'Etudes Biologiques de Chizé
2018-2019
University of Tasmania
2017
Contrasting regional changes in Southern Ocean sea ice have occurred over the last 30 years with distinct effects on ecosystem structure and function. Quantifying how Antarctic predators respond to such provides context for predicting climate variability/change will affect these assemblages into future. Over an 11-year time-series, we examine inter-annual variability concentration advance foraging behaviour of a top predator, southern elephant seal. Females foraged longer pack greatest...
The massive number of seabirds (penguins and procellariiformes) marine mammals (cetaceans pinnipeds) - referred to here as top predators is one the most iconic components Antarctic Southern Ocean. They play an important role highly mobile consumers, structuring connecting pelagic food webs are widely studied relative other taxa. Many birds establish dense breeding colonies or use haul-out sites, making them relatively easy study. Cetaceans, however, spend their lives at sea thus aspects life...
Marine animals equipped with biological and physical electronic sensors have produced long-term data streams on key marine environmental variables, hydrography, animal behavior ecology. These are an essential component of the Global Ocean Observing System (GOOS). The Animal Borne Sensors (AniBOS) network aims to coordinate collection delivery streams, providing a complementary capability other GOOS networks that monitor Essential Variables (EOVs), climate variables (ECVs) biodiversity...
Like many polar animals, emperor penguin populations are challenging to monitor because of the species' life history and remoteness. Consequently, it has been difficult establish its global status, a subject important resolve as environments change. To advance our understanding penguins, we combined remote sensing, validation surveys using Bayesian modelling, estimated comprehensive population trajectory over recent 10-year period, encompassing entirety species’ range. Reported indices...
Abstract Species extinction risk is accelerating due to anthropogenic climate change, making it urgent protect vulnerable species through legal frameworks in order facilitate conservation actions that help mitigate risk. Here, we discuss fundamental concepts for assessing change risks using the example of emperor penguin ( Aptenodytes forsteri ), currently being considered protection under US Endangered Act (ESA). This forms colonies on Antarctic sea ice, which projected significantly...
Abstract The Paris Agreement is a multinational initiative to combat climate change by keeping global temperature increase in this century 2°C above preindustrial levels while pursuing efforts limit the 1.5°C. Until recently, ensembles of coupled simulations producing temporal dynamics en route stable mean at 1.5 and were not available. Hence, few studies that have assessed ecological impact used ad‐hoc approaches. development new specific mitigation now provides an unprecedented opportunity...
Abstract Antarctic coastal polynyas are regions of persistent open water and thought to be key bio-physical features within the sea-ice zone. However, their use by upper trophic levels ecosystems remains unclear. A unique dataset recorded southern elephant seals reveals that East a winter foraging habitat for male seals. During post-moult trips from Isles Kerguelen continental shelf, total 18 out 23 visited 9 different polynyas, spending on average 25 ± 20% (up 75%) trip time inside...
Abstract Antarctic krill (Euphausia superba) are integral to Southern Ocean pelagic ecosystems. Winters with extensive sea ice have been linked high post-larval recruitment the following spring, suggesting that plays a critical role in larval overwinter survival. As ocean warms and declines under climate change, understanding mechanisms linking is increasingly urgent. To address this, we developed qualitative network model (QNM) integrates evidence-based hypothesized interactions explore...
Antarctic coastal polynyas are persistent open water areas in the sea ice zone, and regions of high biological productivity thought to be important foraging habitat for marine predators. This study quantified southern elephant seal (Mirounga leonina) use within around Prydz Bay region (63°E- 88°E) East Antarctica, examined bio-physical characteristics structuring as habitat. Output from a climatological regional ocean model was used provide context situ temperature-salinity vertical profiles...
Abstract The emperor penguin, an iconic species threatened by projected sea ice loss in Antarctica, has long been considered to forage at the fast edge, presumably relying on large/yearly persistent polynyas as their main foraging habitat during breeding season. Using newly developed fine‐scale icescape data and historical penguin tracking data, this study for first time suggests importance of less recognized small openings, including cracks, flaw leads ephemeral short‐term polynyas,...
ABSTRACT Dispersal is a ubiquitous phenomenon that affects the dynamics of population and evolution natural populations; however, it challenging to measure in most species. Furthermore, influence informed dispersal behaviors, referring nonrandom selection breeding habitats by individuals, on species' responses rapid global change substantial but difficult comprehend. Here, we present modeling framework assess characteristics behaviors metapopulation when observations provide information its...
In a fast-changing world, polar ecosystems are threatened by climate variability. Understanding the roles of fine-scale processes, and linear nonlinear effects factors on demography species is crucial for anticipating future state these fragile ecosystems. While sea ice marine top predators increasingly being studied, little known about impacts landfast (LFI) this community. Based unique 39-year time series satellite imagery in situ meteorological conditions world's longest dataset emperor...
Abstract Rapid and regionally contrasting climate changes have been observed around Antarctica. However, our understanding of the impact these on ecosystems remains limited, there is an urgent need to better identify habitats Antarctic species. The Weddell seal ( Leptonychotes weddellii ) a circumpolar mesopredator indicative species marine communities. It has extensively studied in western Ross Sea East Antarctica, its ecology wintertime emerging. We documented behavioural response(s) four...
Abstract Poor coverage of the Antarctic continental shelf bathymetry impedes understanding oceanographic processes affecting Antarctica’s role in global climate. Continental influences warm modified Circumpolar Deep Water movement onto shelf, making it an important factor promoting ice melting and influencing flow shelves into ocean. Building on previous work using seal dives to redefine bathymetry, our longitudinal study ocean physics animal behaviour provided new depth information from...
Predicting species survival in the face of climate change requires understanding drivers that influence their distribution. Emperor penguins (Aptenodytes forsteri) incubate and rear chicks on landfast sea ice, whose extent, dynamics, quality are expected to vary substantially due change. Until recently, this species' continent-wide observations were scarce, knowledge distribution habitat limited. Advances satellite imagery now allow observation characterization habitats across Antarctica at...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 609:1-16 (2019) - DOI: https://doi.org/10.3354/meps12831 FEATURE ARTICLE First odyssey beneath sea ice of juvenile emperor penguins in East Antarctica Sara Labrousse1,2,*, Florian Orgeret2, Andrew R. Solow1, Christophe Barbraud2, Charles A. Bost2, Jean-Baptiste Sallée3, Henri Weimerskirch2, Stèphanie...
Abstract Very high‐resolution satellite (VHR) imagery is a promising tool for estimating the abundance of wildlife populations, especially in remote regions where traditional surveys are limited by logistical challenges. Emperor penguins Aptenodytes forsteri were first species to have circumpolar population estimate derived via VHR imagery. Here we address an untested assumption from Fretwell et al. (2012) that single image emperor penguin colony reasonable representation year was taken. We...
Antarctic coastal polynyas are persistent and recurrent regions of open water located between the coast drifting pack-ice. In spring, they first polar areas to be exposed light, leading development phytoplankton blooms, making potential ecological hotspots in sea-ice regions. Knowledge on polynya oceanography ecology during winter is limited due their inaccessibility. This study describes i) situ chlorophyll fluorescence signal (a proxy for chlorophyll-a concentration thus presence...
Abstract Lactation is the most energy‐demanding event in mammals' reproduction. In pinnipeds, females are only food providers to young and have developed numerous behavioral physiological lactation strategies, from capital‐breeding income‐breeding. Lactating females' fine‐scale foraging strategy, precise understanding of how supplement their pup's needs as well own important understand species' ecology energetic balance. Polar inhabiting extreme environments, sensitive climate change...
Abstract Adélie penguins are renowned for their natal philopatry on land-based colonies, requiring small pebbles to be used nests. We report an opportunistic observation via aerial survey, where hundreds of were documented displaying nesting behaviours fast ice ~3 km off the coast Cape Crozier, which is one largest colonies in world. counted 426 engaging pair formation, spacing similarly normal nest distributions and lying divots that looked like On our first visit, it was noticed guano...
Abstract This paper aims at presenting the tool and set of methods developed to enhance knowledge exchange across dispersed drilling well teams working for various projects on Norwegian Continental Shelf (NCS). solution has a low threshold entries, it fills gap between isolated project high-level corporate management solutions. The goal is sharing improve performance. Four principles are followed: (1) A digital ecosystem that facilitates process created. It includes web application...