Webpages tagged with «Arctic»

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).

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