
yangwar haggen

oru norwegian suvolajistaayirunnu yangwar hagen (septambar 24,1909-march 22,1993).
jeevacharitram.
norwayile fredrikstaadilaanu haggen janichathu.
1937 muthal 1938 vare thekkan atlaantik samudrathile tristaan daa kunhayilekkulla norwegian shaasthra paryaveshanatthil addeham pankedutthu. eee paryaveshanatthinte metteeriyal addehathinte doctoral prabandhamaaya 'bareds oof tristaan daa kunha' (1952) yill upayogichu.
oosloo sarvakalaashaalayilum royal norwegian sosaitti oof sayans aandu lettersilum pravarthicha hagen, museum (dii. keey. enn. vii. ezz, myoosit), 1955 muthal 1958 vare norwegian suvological sosaittiyude ("norsk suvologisk fooring") chairmaanaayirunnu, 1955 muthal 1977 vare vanyajeevi sarvekal nadathunna norwegian naashanal wildlife sarveyil ("staattans vilttandezhsokelsar") maanejaraayirunnu.
norwayil, prakrithiyil raapttarukalude sthaanathekkurichu charchakal srishticha "rovfugleen oog viltpliyan" (erakalude pakshikalum geyim maanejmentum, 1952) enna perilaanu addeham kooduthal ariyappedunnathu.