General Nordic, Svalbard and Jan Mayen
A crossroad exists between science and contemporary art
The work of Ronny Aanes & Siri Hermansen
I will give you a quick lecture on what I do as a population ecologist. I work in time and space. So I have main two parameters – time and the density of population – the number of animals in a given space or area. A 'space' is defined as the space which the animals use on a regular basis. Some populations are variable, others more stable.
So a factor like climate for example will influence the lives of individuals in a group of animals. Individuals of a species will respond in some way to the climate changes. They either survive or die, or there are less offspring. And so this means the population density will fluctuate.
Here is an example of how these factors work. The first graph shows calves per female on one axis, and on the other precipitation (snow fall). In the winter there is more snow and females have less off spring. The second graph shows mortality – the more snow, the higher the rate of mortality of individuals. The third graph combines these two effects and shows the rate of decrease in population year to year.
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See also this artistic contribution to…