Henry S. Horn

{{Short description|American ecologist and natural historian (1941–2019)}}

Henry S. Horn (November 12, 1941 – March 14, 2019){{Cite web |url=https://www.princeton.edu/news/2019/03/18/ecologist-henry-horn-founding-director-program-environmental-studies-dies-77 |title=Ecologist Henry Horn, founding director of Program in Environmental Studies, dies at 77 |website=Princeton University |language=en |access-date=2019-03-19}} was a natural historian and ecologist. He was an emeritus professor in the Ecology and Evolutionary Biology Department at Princeton University. He worked on a wide variety of topics including the following:

• the geometrical structure of forests{{cite journal |last1= MacArthur|first1= R.H. |last2= Horn |first2= H.S. |author-link1= Robert MacArthur |year=1969 |title=Foliage profiles by vertical measurements |journal=Ecology |volume=50 |issue= 5 |pages=802–804 |jstor=1933693 |doi=10.2307/1933693}}
• patterns of forest succession{{cite journal |author=H.S.Horn |year=1975 |title=Forest Succession |journal=Scientific American |volume=232 |issue=5 |pages=90–98 |doi=10.1038/scientificamerican0575-90|bibcode=1975SciAm.232e..90H }}
• wind dispersal of seeds{{cite journal |author1=R. Nathan |author2=G.G. Katul |author3=H.S. Horn |author4=S.M. Thomas |author5=R. Orem |author6=R. Avissar |author7=S.W. Pacala |author8=S.A. Levin |year=2002 |title=Mechanisms of long-distance dispersal of seeds by wind |journal= Nature |volume=418 |pages=409–413 | doi=10.1038/nature00844 |issue=6896|pmid=12140556 |bibcode=2002Natur.418..409N |s2cid=4318881 }}
• spatial patterns of competition{{cite journal |author1=H.S. Horn |author2=R.H. MacArthur |year=1972 |title=Competition among fugitive species in a harlequin environment |journal= Ecology |volume=53 |issue=4 |pages=749–752 |jstor=1934797 |doi=10.2307/1934797}}
• social behavior of butterflies