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Citations since 2017
11 Research Items
I study the effects of contaminant exposure on wildlife, with a particular focus on physiological and ecological endpoints.
Skills and Expertise
October 2019 - present
- PhD Student
- Maternal hormones and contaminants in eggs: an endocrine disrupting mechanism? A study in an Arctic seabird
May 2018 - October 2019
- Research Assistant
- Mercury contamination and trophic ecology of 4 different species of seagulls of the Atlantic coast
February 2017 - August 2017
- Spatial and temporal analysis of PFASs in White-tailed eagle nestlings of Northern Norway
Maternal effects are thought to be essential tools for females to modulate offspring development. The selective deposition of avian maternal hormones could therefore allow females to strategically adjust the phenotype of their offspring to the environmental situation encountered. However, at the time of egg formation, several contaminants are also...
The developmental period is a very sensitive phase since it sees the synthesis and maturation of all organs and functions of the future organism. Therefore, any disruption experienced early in life may have substantial subsequent consequences. In the context of the considerable impact of Human activities on wildlife, seabirds are particularly at ri...
Seasonal environments impose on animals the necessity to balance their energy expenditure and energy gain according to fluctuating environmental conditions. For species wintering in northern regions, winter can remain energetically challenging. Marine environments are characterized by high spatiotemporal heterogeneity in food availability and physi...
Mercury (Hg) is a toxic trace element widely distributed in the environment, which particularly accumulates in top predators, including seabirds. Among seabirds, large gulls (Larus sp) are generalist feeders, foraging in both terrestrial and marine habitats, making them relevant bioindicators of local coastal Hg contamination. In the present study,...
Site fidelity is driven by predictable resource distributions in time and space. However, intrinsic factors related to an individual’s physiology and life-history traits can contribute to consistent foraging behaviour and movement patterns. Using 11 years of continuous geolocation tracking data (fall 2008 to spring 2019), we investigated spatiotemp...
Per- and Poly-fluoroalkyl substances (PFAS) raised increasing concerns over the past years due to their persistence and global distribution. Understanding their occurrence in the environment and their disruptive effect on the physiology of humans and wildlife remains a major challenge in ecotoxicological studies. Here, we investigate the occurrence...
The white-tailed eagle (Haliaeetus albicilla) in Scandinavia has suffered from impaired reproduction due to high exposure to industrial pollution between the 1960s and 1980s. While population numbers are rising again, new contaminants, such as per- and polyfluoroalkyl substances (PFAS), are increasingly found in high trophic avifauna and are of con...
Monitored seabird populations—useful sentinels of marine ecosystem health—have been declining worldwide at a rapid pace. Yet, lack of reliable long-term monitoring data constrains assessment of the conservation status of many seabird populations. Unmanned aerial vehicles (UAVs) have the potential to increase survey efficiency and count precision of...
The primary objective for this krill research activity was twofold 1) to conduct a survey that provides updated estimates of the biomass and distribution of krill which are used in models to estimate sustainable yield in CCAMLR Area 48 and 2) to develop knowledge on the marine environment essential for the implementation of a Feed-Back Management (...
The research program aims at investigating the consequences of contaminants exposure on maternal effects in seabirds. The selective deposition of avian maternal hormones could allow females to strategically adjust the phenotype of their offspring to the environmental situation encountered. Less is known however on how females transfer their pollutants to the eggs and how these pollutants could disrupt such adaptive maternal deposition. We wish to: 1) Explore relationships between contaminants and hormones (steroids, glucocorticoids and thyroids) found in the eggs; 2) Assess the consequences of maternal hormones disruption on offspring’s physiology; 3) Relate individual variations in migratory strategies and foraging behavior (via geolocators and GPS tracking) to contaminants and hormones transferred to the eggs.