Nettsider med emneord «Polar Regions»

Publisert 4. apr. 2018 15:49
King penguin chick
Publisert 26. okt. 2020 10:05

Seabirds in Polar Regions are experiencing increasing environmental stress due to climate change and pollution. They also serve as indicator species for changes in the environment. But what do they tell us about how seabird populations are affected by contaminants and climate, and is the situation the same in Antarctica as in the Arctic?

High flow and a tree nearly under water at a lake in Western Norway in the autumn of 2018. Photo: Gunn Kristin Tjoflot, UIO
Publisert 19. apr. 2021 09:41

In the next LATICE seminar on Wednesday 21 April, Priscilla Mooney (NORCE) will present the recently funded H2020 project "Polar Regions in the Earth System".

Publisert 26. okt. 2020 11:03

The life history of any given individual is defined by its ability to survive and reproduce over the course of its lifetime. Differences in life history traits can determine how animals acquire resources in the form of energy and allocate them towards different life history traits such as growth and reproduction. Most organisms store their energy within lipids and this becomes particularly important in the Arctic, where seasonal variation influences resource availability and energy utilisation. For example, during periods of limited prey availability, organisms may have to depend on internal energy reserves in order to sustain themselves through a winter season.

Energy release from lipid storages is especially important to consider when it comes to the bioaccumulation of contaminants. While some contaminants are associated with proteins, many contaminants are lipid soluble, including persistent organic pollutants (POPs).

Publisert 17. aug. 2017 12:24