What is Hans Trass?
[[File:Hans-Voldemar Trass (cropped).jpg|thumb|Trass in November 2009]] '''Hans-Voldemar Trass ''' (2 May 1928 &ndash; 14 February 2017) was an [[Estonia]]n [[ecologist]] and [[botanist]]. He was a member of the [[Estonian Academy of Sciences]] from 1975 until his death. He was the [[president]] of the [[Estonian Naturalists' Society]] from 1964 to 1973 and 1985 to 1991. He was awarded the [[Acharius Medal]] by the [[International Association for Lichenology]] in 1992.<ref>{{Cite web|title=Acharius Medallists|url=http://www.lichenology.org|publisher=International Association for Lichenology|access-date=15 February 2017}}</ref> Trass was born in [[Tallinn]]. He was married to Estonian [[Raine Loo]]. The couple had a son, [[composer]] and [[organist]] Toomas Trass. Trass died on 14 February 2017, at the age of 88.<ref>{{Cite web|url=http://tartu.postimees.ee/4014865/suri-akadeemik-hans-voldemar-trass?utm_source|title=Suri akadeemik Hans-Voldemar Trass|last=Hanson|first=Raimu|date=14 February 2017|work=Tartu Postimees|access-date=15 February 2017|language=et}}</ref> ==Related pages== *[[List of Estonian scientists]] *[[List of ecologists from Europe]] ==References== {{Commons category}} {{Reflist}} {{DEFAULTSORT:Trass, Hans}} [[Category:1928 births]] [[Category:2017 deaths]] [[Category:Botanists]] [[Category:Ecologists]] [[Category:People from Tallinn]] [[Category:Estonian scientists]] {{Bio-stub}}