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- the Scandinavian lynx project
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Reproduction and survival

Every year all marked females are monitored intensively so we can detect if they give birth to young, and how many kittens they get. We carefully approach the den when the kittens are a few weeks old, while their mother is out hunting. At this time we count the number of kittens, weigh them, determine their sex and mark them with a tattooed number in their ear and a microchip under their skin. This helps us to identify individuals if we recapture them or they are killed during the hunt. Before the hunt starts, we snow-track all females with kittens to find out how many of their kittens still are alive.


Because large carnivores naturally exist in low population densities, management has to be efficient and exact. To understand which factors influence their population dynamics is of great importance. Because mortality is the major factor affecting population growth for large carnivores, it is important to examine the extent and importance of different causes of death. Adult lynx in Scandinavia rarely die due to natural causes. Most deaths are caused by human activity, such as hunting, illegal killing or traffic.