Yngvar Hagen

Yngvar Hagen (September 24, 1909 – March 22, 1993) was a Norwegian zoologist.

Biography

Hagen was born in Fredrikstad, Norway.[1]

From 1937 to 1938 he participated in the Norwegian Scientific Expedition to Tristan da Cunha in the southern Atlantic Ocean.[1] The material of this expedition was used in his doctoral dissertation Birds of Tristan da Cunha (1952).

Hagen worked both at the University of Oslo and Trondheim Science Museum, was the chairman of the Norwegian Zoological Society (Norsk Zoologisk Forening) from 1955 to 1958, and was a manager at the Norwegian National Wildlife Survey (Statens Viltundersøkelser), conducting wildlife surveys, from 1955 to 1977.[1]

In Norway, he is best known for Rovfuglene og viltpleien (Birds of Prey and Game Management, 1952),[1] which generated discussion about the place of raptors in nature.

gollark: Move it to just after the %?
gollark: Yes, 1.1 isn't part of the formatting code so it just prints the float then that.
gollark: Writing a bare metal microkernel in Haskell is not very practical.
gollark: > I never tried it. It's nice that it has these safety features but I prefer C++ still. > If I want to be sure that my program is free of bugs, I can write a formal specification and do a > correctness proof with the hoare calculus in some theorem proofer (People did that for the seL4 microkernel, which is free from bugs under some assumptions and used in satellites, nuclear power plants and such)Didn't doing that for seL4 require several hundred thousand lines of proof code?
gollark: Most countries have insanely convoluted tax law so I assume it's possible.

References
  1. "Yngvar Hagen". Store norske leksikon. 2013. Retrieved October 12, 2019.


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