A5076804586- Avian ecology and behavior
- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Marine animal studies overview
- Fish Ecology and Management Studies
- Fault Detection and Control Systems
- Animal Vocal Communication and Behavior
- Species Distribution and Climate Change
- Plant and animal studies
- Bat Biology and Ecology Studies
- Primate Behavior and Ecology
- Plant Physiology and Cultivation Studies
- Atmospheric chemistry and aerosols
- Identification and Quantification in Food
- Soil erosion and sediment transport
- Animal Ecology and Behavior Studies
- Anomaly Detection Techniques and Applications
- Plant Reproductive Biology
- Animal Diversity and Health Studies
- Isotope Analysis in Ecology
- Wildlife-Road Interactions and Conservation
- Diatoms and Algae Research
- Toxic Organic Pollutants Impact
- Genetic diversity and population structure
- Energy and Environment Impacts
Ecosystèmes, Biodiversité, Evolution
2021-2025
Centre National de la Recherche Scientifique
2019-2024
Université de Rennes
2021-2024
Centre d'Etudes Biologiques de Chizé
2017-2023
Centre d'Écologie Fonctionnelle et Évolutive
2021-2023
La Rochelle Université
2020-2021
With threats to nature becoming increasingly prominent, in order for biodiversity levels persist, there is a critical need improve implementation of conservation measures. In the oceans, surveillance fisheries complex and inadequate, such that quantifying locating nondeclared illegal persistently problematic. Given these activities dramatically impact oceanic ecosystems, through overexploitation fish stocks bycatch threatened species, innovative ways monitor oceans are urgently required....
In birds, maternal transfer is a major exposure route for several contaminants, including poly- and perfluoroalkyl substances (PFAS). Little known, however, about the extent of different PFAS compounds to eggs, especially alternative fluorinated compounds. present study, we measured legacy emerging PFAS, Gen-X, ADONA, F-53B, in plasma prelaying black-legged kittiwake females breeding Svalbard yolk their eggs. We aimed (1) describe contaminant levels patterns both (2) investigate transfer,...
Animals have to develop novel behaviours adapt anthropogenic activities or environmental changes. Fishing vessels constitute a recent feature that attracts albatrosses in large numbers. While they provide valuable food source through offal and bait, cause mortalities bycatch, such selection on vessel attraction will depend the cost–benefit balance. We examine whether fishing other changes lifetime of great albatrosses, show differed between age classes, sexes personality. Juveniles...
The early life of animals is a period high mortality, when foraging capacities are assumed to be improved progressively. In birds, this critical involves the improvement flight. How do young birds gain these has rarely been studied in natural conditions especially seabirds that spend most their at sea. We used detailed GPS and body acceleration data on 37 great frigatebirds (Fregata minor), test hypothesis juveniles starting first flights have lower flying than adults, but will improve...
While wind power plants are an important contribution to the production of renewable energy limit climate change, collision mortality from turbines is a danger for birds, including many protected species. To try mitigate risks, automatic detection systems (ADSs) can be deployed on plants; these work by detecting incoming birds using detection/classification process and triggering specific reaction (scaring off bird or shutting down turbine). Nonetheless, fatalities still occur 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 633:225-238 (2020) - DOI: https://doi.org/10.3354/meps13171 At-sea movements of wedge-tailed shearwaters during and outside breeding season from four colonies in New Caledonia Henri Weimerskirch1,*, Sophie de Grissac1,2, Andreas Ravache3,4, Aurélien Prudor1, Alexandre Corbeau1, Bradley C. Congdon5, Fiona...
Compensating for wind drift can improve goalward flight efficiency in animal taxa, especially among those that rely on thermal soaring to travel large distances. Little is known, however, about how animals acquire this ability. The great frigatebird ( Fregata minor ) exemplifies the challenges of compensation because it lives a highly pelagic lifestyle, travelling very long distances over open ocean but without ability land water. Using GPS tracks from fledgling frigatebirds, we followed...
Abstract A widespread hypothesis for the ontogeny of behavior and decision-making is early-exploration-later-canalization hypothesis. It postulates that juveniles are more exploratory adults consistent in their behavior. In addition, it often assumed naïve could overcome costs individual experience building by copying decisions others than (early-conformism-later-self-defining hypothesis). Here, we compare central place foraging movements postfledging first flights around colony before...
Abstract Many seabirds are attracted to fishing boats where they exploit foraging opportunities, often involving bycatch‐related mortality. Bycatch risk is generally estimated by overlapping ranges with coarse‐scale monthly maps of efforts, but a more direct estimation would be the time birds actually spend attending boats. Here we matched data from Automatic Identification Systems all declared in Southern Ocean, 143 simultaneous trips populations large albatrosses ( Diomedea amsterdamensis...
Seabirds are well known to be attracted by fishing boats forage on offal and baits. We used recently developed loggers that record accurate GPS position detect the presence of through their radar emissions examine how albatrosses use Area Restricted Search (ARS) if so, have specific ARS behaviours, when attending boats. As much as 78.5% locations with a detection (contact boat) during trip occurred within ARS: 36.8% all large-scale (n = 212) 14.7% small-scale 1476) were associated boat....
Biparental care is widespread in avian species. Individuals may match the contribution of their partner, resulting equal parental effort, or exploit to minimise own investment. These two hypotheses have received much theoretical and empirical attention short‐lived species, that change mates between seasons. However, species with persistent pair bonds, where divorce rare costly, selective pressures are different, as partners share value future reproduction. In such coordination has been...
Albatrosses attend fishing boats to feed on discards but are often at risk of accidental bycatch. To examine whether populations (same species) and sexes differ in their overlap with fisheries due differences habitat use, we combined the use recently developed loggers equipped GPS boat radar detectors Automatic Identification System (AIS) data. Our study indicates that incubating wandering albatrosses Diomedea exulans from Crozet Kerguelen foraged different habitats although duration trips...
Sexual competition is increasingly recognized as an important selective pressure driving species distributions. However, few studies have investigated the relative importance of interpopulation versus intrapopulation in relation to habitat availability and selection. To explain spatial segregation between sexes that often occurs non-territorial central place foragers, such seabirds, two hypotheses are commonly used. The 'competitive exclusion' hypothesis states dominant individuals should...
Abstract The ability of individuals and populations to adapt a changing climate is key determinant population dynamics. While changes in mean behaviour are well studied, trait variance have been largely ignored, despite being assumed be crucial for adapting environment. As the acquire resources essential both reproduction survival, behaviours that maximize resource acquisition should under selection. Here, using foraging trip duration data collected over 7 years on black‐browed albatrosses (...
The first year of life is a period high mortality in animals. Reduced foraging capacities naive individuals might be the primary cause their mortality. These are supposed to progressively acquired during months life. In this study, we investigate ontogeny flight capacities, by day and night, first‐year individuals, compare it with adults from two closely related species great albatrosses: Amsterdam Diomedea amsterdamensis wandering exulans albatrosses which forage different environmental...
Abstract Bycatch risk assessments typically rely on spatial overlaps between seabirds and fishing vessels but should also consider seabirds’ position in the attraction spectrum. Investigating seabird-fishery interactions relation to habitat use is vital for species-specific assessments. To address this, we studied sooty albatrosses (SA) white-chinned petrels (WCP) with fisheries. GPS data from 20 SA 18 WCP individuals Marion Island were analysed alongside Automatic Identification...
Abstract When our dart guns failed in Morocco, we devised an artisanal pressurised air launcher to replace them. The effective shooting range was between 12 and 20 m, which made it possible capture wild Barbary macaques ( Macaca sylvanus ), from groups that would not allow for a closer approach or enter any trap. To assess the effect of method capture, monitored on foot before after captures. We looked evidence change risk perception did uncover such step lengths, turning angles, home area,...
In seabirds, diet and feeding methods are related to the species morphology (Croxall, Evans, & Schreiber, 1984). Species that feed on living, mobile resources rely a fully operational beak efficiently seize, kill swallow their prey. This is particularly important diving species, such as penguins, highly time constrained when searching for prey at depth—as air-breathing predators, penguins must maximise efficiency during deep foraging dives (Wilson Wilson, 1990). why observation of...