A5032575943- Avian ecology and behavior
- Marine animal studies overview
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Primate Behavior and Ecology
- Indigenous Studies and Ecology
- Animal Ecology and Behavior Studies
- Genomics and Phylogenetic Studies
- Arctic and Russian Policy Studies
- Mercury impact and mitigation studies
- Genetic diversity and population structure
- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Remote Sensing and LiDAR Applications
- Marine and fisheries research
- Climate variability and models
- Morphological variations and asymmetry
- Agriculture and Rural Development Research
- Heavy Metal Exposure and Toxicity
- Conservation, Ecology, Wildlife Education
- Heavy metals in environment
- Amphibian and Reptile Biology
- Origins and Evolution of Life
Icelandic Tourism Research Centre
2017-2025
Anna Needs Neuroblastoma Answers
2019
University of Missouri–St. Louis
1999-2004
Abstract Plastic pollution is distributed patchily around the world’s oceans. Likewise, marine organisms that are vulnerable to plastic ingestion or entanglement have uneven distributions. Understanding where wildlife encounters crucial for targeting research and mitigation. Oceanic seabirds, particularly petrels, frequently ingest plastic, highly threatened, cover vast distances during foraging migration. However, spatial overlap between petrels plastics poorly understood. Here we combine...
Abstract The conservation of migratory marine species, including pelagic seabirds, is challenging because their movements span vast distances frequently beyond national jurisdictions. Here, we aim to identify important aggregations seabirds in the North Atlantic inform ongoing regional efforts. Using tracking, phenology, and population data, mapped abundance diversity 21 seabird species. This revealed a major hotspot associated with discrete area subpolar frontal zone, used annually by 2.9–5...
Abstract As more and species face anthropogenic threats, understanding the causes of population declines in vulnerable taxa is essential. However, long‐term datasets, ideal to identify lasting or indirect effects on fitness measures such as those caused by environmental factors, are not always available. Here we use a single year but multi‐population approach populations with contrasting demographic trends possible drivers mechanisms seabird changes north‐east Atlantic, using Atlantic...
Stresses are environmental factors which restrict growth or cause a potentially adverse change in an organism. The exposure of developing organisms to stresses may have several physiological consequences including decrease immunocompetence. However, mounting immune response against foreign antigen itself constitute cost for organisms. This has long–term adult function and fitness. study examines the developmental stability Japanese quail chicks challenged by three non–pathogenic antigens:...
Examining contaminant concentrations in birds Arctic environments is important for managing species assessing long-term trends. Recent reports on mercury (Hg) of seabirds has identified a need data from missing regions or species. We measured arsenic (As), cadmium (Cd), chromium (Cr), lead (Pb), manganese (Mn), Hg and selenium (Se) the body feathers Atlantic Puffin (Fratercula arctica) four colonies Iceland 2011 one 2009. Puffins forage small fish at an intermediate trophic concentration....
Documenting novel cases of tool use in wild animals can inform our understanding the evolutionary drivers behavior’s emergence natural world. We describe a previously unknown tool-use behavior for birds, so far only documented primates and elephants. observed 2 Atlantic puffins at their breeding colonies, one Wales other Iceland (the latter captured on camera), spontaneously using small wooden stick to scratch bodies. The importance these observations is 3-fold. First, while date single form...
Worldwide, incidental bycatch in fisheries is a conservation threat to many seabird species. Although knowledge on of seabirds has increased the last decade, most stems from longline and impacts coastal gillnet are poorly understood. Gillnet fishing for North Atlantic lumpsucker (Cyclopterus lumpus) one such fishery. We collated synthesized available information across entire geographical range estimate infer magnitude their impact affected populations. Most birds killed were diving ducks,...
Bird migration is commonly defined as a seasonal movement between breeding and non-breeding grounds. It generally involves relatively straight directed large-scale movements, with latitudinal change, specific daily activity patterns comprising less or no foraging more traveling time. Our main objective was to describe how this general definition applies seabirds. We investigated characteristics of 6 pelagic seabird species (little auk Alle alle , Atlantic puffin Fratercula arctica common...
Abstract The current warming of the oceans has been shown to have detrimental effects for a number species. An understanding underlying mechanisms may be hampered by non‐linearity and non‐stationarity relationships between temperature demography, insufficient length available time series. Most demographic series are too short study climate on wildlife in classical sense meteorological patterns over at least 30 years. Here we present harvest Atlantic puffins ( Fratercula arctica ) that goes...
Seabirds are declining globally, though the threats they face differ among and within species populations. Following substantial population declines at several breeding colonies, Leach's Storm-Petrel (<em>Hydrobates leucorhous</em>) was uplisted from Least Concern to Vulnerable by International Union for Conservation of Nature (IUCN) in 2016. Reasons these unclear, it is important identify faces across its global range guide research directions inform conservation efforts. We solicited...
Abstract The factors underlying gene flow and genomic population structure in vagile seabirds are notoriously difficult to understand due their complex ecology with diverse dispersal barriers extensive periods at sea. Yet, such understanding is vital for conservation management of that globally declining alarming rates. Here, we elucidate the Atlantic puffin ( Fratercula arctica ) by assembling its reference genome analyzing genome-wide resequencing data 72 individuals from 12 colonies. We...
Climate change alters species distributions by shifting their fundamental niche in space through time. Such effects may be exacerbated increased inter-specific competition if climate dominance where competitor ranges overlap. This study used census data, telemetry and stable isotopes to examine the population foraging ecology of a pair Arctic temperate congeners across an extensive zone sympatry Iceland, sea temperatures varied substantially. The abundance Brünnich's guillemot Uria lomvia...
Tracking data of marine predators are increasingly used in spatial management. We developed a set with estimates the monthly distribution 6 pelagic seabird species breeding Northeast Atlantic. The was based on year-round global location sensor (GLS) tracking 2356 adult seabirds from 2006-2019 network colonies, describing physical environment and population sizes. environmental were combined models (SDMs). Cross-validations to assess transferability between years locations. analyses showed...
Seabird-fishery interactions are a common phenomenon of conservation concern. Here, we highlight how light-level geolocators provide promising opportunities to study these interactions. By examining raw light data, it is possible detect encounters with artificial lights at night, while conductivity data give insight on seabird behaviour during encounters. We used geolocator from 336 northern fulmars Fulmarus glacialis tracked 12 colonies in the North-East Atlantic and Barents Sea...
The theoretical aerobic diving limit (tADL) specifies the duration of a dive after which oxygen reserves available for are depleted. tADL has been calculated by dividing stores metabolic rate (DMR). Contrary to mammals, most birds examined date exceed large margin. This discrepancy between observation and theory engendered two alternative explanations suggesting that is extended either anaerobically or depressing metabolism. Current formulations uncritically assume DMR independent depth....
Abstract In a warming Arctic, circumpolar long‐term monitoring programs are key to advancing ecological knowledge and informing environmental policies. Calls for better involvement of Arctic peoples in all stages the process widespread, although such transformation science is still its infancy. Seabirds stand out as sentinels changes, priority has been given implement Circumpolar Seabird Monitoring Plan (CSMP). We assessed representativeness pan‐Arctic seabird network focused on black‐legged...
The recognition of own progeny is critical in group-living organisms that provide parental care for their young. colonial seabird Common Murre (Uria aalge (Pontoppidan, 1763); also known as the Guillemot) does not build a nest, so direct cues must be available parents to recognize egg. However, only anecdotal evidence exists that, seen other avian lineages where examined, eggshells Murres are consistent most aspects appearance between different breeding attempts by each female. Using digital...
Migration is a common trait among many animals allowing the exploitation of spatiotemporally variable resources. It often implies high energetic costs to cover large distances, for example between breeding and wintering grounds. For flying or swimming animals, adequate use winds currents can help reduce associated costs. Migratory seabirds are good models because they dwell in habitats characterized by strong while undertaking very long migrations. We tested hypothesis that migrate through...
In group-living species with parental care, the accurate recognition of one's own young is critical to fitness. Because discriminating offspring within a large colonial group may be challenging, progeny breeders often display familial or individual identity signals elicit and receive provisions from their parents. For instance, common murre (or guillemot: Uria aalge) colonially breeding seabird that does not build nest lays incubates an egg individually unique appearance. How shell's...
Leach’s Storm Petrel Hydrobates leucorhous has undergone substantial population declines at North Atlantic colonies over recent decades, but censusing the species is challenging because it nests in burrows and only active night. Acoustic playback surveys allow birds present nest sites to be detected when they respond recordings of vocalisations. However, not all on every occasion, response rate likely decline with increasing distance between bird location, observer may detect responses. As a...