Thomas Eisner (June 25, 1929 – March 25, 2011) was a German-American
entomologist
Entomology (from Ancient Greek ἔντομον (''éntomon''), meaning "insect", and -logy from λόγος (''lógos''), meaning "study") is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. In ...
and ecologist, known as the "father of chemical ecology."
He was a Jacob Gould Schurman Professor of Chemical Ecology at
Cornell University
Cornell University is a Private university, private Ivy League research university based in Ithaca, New York, United States. The university was co-founded by American philanthropist Ezra Cornell and historian and educator Andrew Dickson W ...
, and director of the Cornell Institute for Research in Chemical Ecology (CIRCE). He was a world authority on
animal behavior
Ethology is a branch of zoology that studies the behaviour of non-human animals. It has its scientific roots in the work of Charles Darwin and of American and German ornithologists of the late 19th and early 20th century, including Charle ...
, ecology, and
evolution
Evolution is the change in the heritable Phenotypic trait, characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, re ...
, and, together with his Cornell colleague
Jerrold Meinwald
Jerrold Meinwald (January 16, 1927 – April 23, 2018) was an American chemist known for his work on chemical ecology, a field he co-founded with his colleague and friend Thomas Eisner. He was a Goldwin Smith Professor Emeritus of Chemistry at ...
, was one of the pioneers of
chemical ecology
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combin ...
, the discipline dealing with the chemical interactions of organisms. He was author or co-author of some 400 scientific articles and seven books.
Personal life
Thomas Eisner was born on June 25, 1929, in Berlin, Germany. His father, Hans Eisner, was a chemist of Jewish origin, and a coworker of
Fritz Haber
Fritz Jakob Haber (; 9 December 1868 – 29 January 1934) was a German chemist who received the Nobel Prize in Chemistry in 1918 for his invention of the Haber process, a method used in industry to synthesize ammonia from nitrogen gas and hydrog ...
at the Kaiser Wilhelm Institute for Electrochemistry in Berlin; he later held a chair for chemistry at Cornell. His mother, Margarete Heil-Eisner, was an artist. Escaping the
Nazi
Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...
regime, the family moved to
Barcelona
Barcelona ( ; ; ) is a city on the northeastern coast of Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second-most populous municipality of Spain. With a population of 1.6 million within c ...
and, following the
Spanish Civil War
The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
, to
Uruguay
Uruguay, officially the Oriental Republic of Uruguay, is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast, while bordering the Río de la Plata to the south and the A ...
. The Eisners came to the U.S. in 1947.
Thomas Eisner became a naturalized American citizen, and applied to
Cornell University
Cornell University is a Private university, private Ivy League research university based in Ithaca, New York, United States. The university was co-founded by American philanthropist Ezra Cornell and historian and educator Andrew Dickson W ...
as an undergraduate, but was rejected. He received his B.S. and PhD degrees from
Harvard University
Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...
, and joined Cornell's
entomology
Entomology (from Ancient Greek ἔντομον (''éntomon''), meaning "insect", and -logy from λόγος (''lógos''), meaning "study") is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. In ...
faculty in 1957. He married Maria Eisner, who was a member of his lab. In 1964, he helped found the Department of Neurobiology and Behavior, where he worked until his death.
In addition to his academic work, he was a passionate nature photographer and
videographer
Videography involves capturing moving images on electronic media (such as: videotape, direct to disk recording, or solid state storage), and can include streaming media. It encompasses both video production and post-production methods. Histori ...
. His film ''Secret Weapons'' won the Grand Award at the
New York Film Festival
The New York Film Festival (NYFF) is a film festival held every fall in New York City, presented by Film at Lincoln Center. Founded in 1963 by Richard Roud and Amos Vogel with the support of Lincoln Center president William Schuman, NYFF i ...
and was named Best Science Film by the
British Association for the Advancement of Science
The British Science Association (BSA) is a Charitable organization, charity and learned society founded in 1831 to aid in the promotion and development of science. Until 2009 it was known as the British Association for the Advancement of Scienc ...
. He was also an avid pianist and occasional conductor. Eisner died on March 25, 2011, of
Parkinson's disease
Parkinson's disease (PD), or simply Parkinson's, is a neurodegenerative disease primarily of the central nervous system, affecting both motor system, motor and non-motor systems. Symptoms typically develop gradually and non-motor issues become ...
.
He was an atheist.
Work

Eisner's main body of work was in
chemical ecology
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combin ...
, primarily studying the
chemical defense
Chemical defense is a strategy employed by many organisms to avoid consumption by producing toxic or repellent metabolites or chemical warnings which incite defensive behavioral changes. The production of defensive chemicals occurs in plants, fung ...
s of insects against
predation
Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common List of feeding behaviours, feeding behaviours that includes parasitism and micropredation ...
. Some of his most famous work was conducted on the
bombardier beetle
Bombardier beetles are adephagan ground beetles (Carabidae) in the tribes Brachinini, Paussini, Ozaenini, or Metriini—more than 500 species altogether—which are most notable for the defense mechanism that gives them their name: when disturbe ...
, which he discovered creates a chemical reaction within its body to shoot a boiling noxious liquid from a nozzle in its abdomen.
A field biologist with working experience on four continents, he was also an active conservationist. He served on the board of directors of the
National Audubon Society
The National Audubon Society (Audubon; ) is an American non-profit environmental organization dedicated to conservation of birds and their habitats. Located in the United States and incorporated in 1905, Audubon is one of the oldest of such orga ...
, the National Scientific Council of the Nature Conservancy, and the World Resources Institute Council. He was a past president of the
American Society of Naturalists
The American Society of Naturalists (ASN) was founded in 1883 and is one of the oldest professional societies dedicated to the biological sciences in North America. The purpose of the Society is "to advance and diffuse knowledge of organic evoluti ...
, and chairman of the Biology Section of the
American Association for the Advancement of Science
The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsib ...
. He played a key role in initiating the Congressional Fellow Program in Washington DC, and in efforts to preserve wilderness areas in Florida and Texas.
Eisner was furthermore a member of the
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...
, the
American Academy of Arts and Sciences
The American Academy of Arts and Sciences (The Academy) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and other ...
, and the
American Philosophical Society
The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publicat ...
. He received numerous honors, including the
Tyler Prize for Environmental Achievement
The Tyler Prize for Environmental Achievement is an annual award for environmental science, environmental health, and energy. Tyler Laureates receive a $250,000 cash prize and a medallion. The prize is administered by the University of Southern Ca ...
, the
Harvard Centennial Medal The Harvard Centennial Medal is an honor given by the Harvard Graduate School of Arts and Sciences to recipients of graduate degrees from the School for their "contributions to society."
The Medal was established in 1989 on the 100th anniversary of ...
, the 1994
National Medal of Science
The National Medal of Science is an honor bestowed by the President of the United States to individuals in science and engineering who have made important contributions to the advancement of knowledge in the fields of behavioral science, behavior ...
and the
Lewis Thomas Prize
The Lewis Thomas Prize for Writing about Science, named for its first recipient, Lewis Thomas, is an annual literary prize awarded by The Rockefeller University to scientists or physicians deemed to have accomplished a significant literary achiev ...
for Writing about Science. He also held honorary degrees from universities in
Sweden
Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
, Germany,
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
and the United States, and was a foreign fellow of the
Royal Society
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...
. Eisner was additionally a member of the
Deutsche Akademie der Naturforscher Leopoldina
The German National Academy of Sciences Leopoldina (), in short Leopoldina, is the national academy of Germany, and is located in Halle (Saale). Founded on 1 January 1652, based on academic models in Italy, it was originally named the ''Academi ...
and
Academia Europaea
The Academia Europaea is a pan-European Academy of humanities, letters, law, and sciences.
The Academia was founded in 1988 as a functioning Europe-wide Academy that encompasses all fields of scholarly inquiry. It acts as co-ordinator of Europe ...
.
In 2008, Eisner was awarded the
John J. Carty Award by the
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...
.
Publications
* Eisner, T, (2003) ''For Love of Insects''. Harvard University Press. ;
* Eisner, T, Eisner, M, & Siegler, M, (2005
''Secret Weapons: Defenses of Insects, Spiders, Scorpions, and Other Many-Legged Creatures'' Harvard University Press.
* Eisner, T,
Bert Hölldobler
Berthold Karl Hölldobler BVO (born 25 June 1936) is a German zoologist, sociobiologist and evolutionary biologist who studies evolution and social organization in ants. He is the author of several books, including '' The Ants'', for which he ...
&
Martin Lindauer
Martin Lindauer (December 19, 1918 – November 13, 200 was a German behavioral scientist. Lindauer studied communication systems in various species of social bees including stingless bees and honey bees. Much of his work was done in collabo ...
: ''Chemische Ökologie, Territorialität, gegenseitige Verständigung.'' Fischer, Stuttgart/New York 1986, .
References
External links
Thomas Eisner's Cornell HomepageThomas Eisner tells his life story at Web of Stories(video)
{{DEFAULTSORT:Eisner, Thomas
1929 births
2011 deaths
American ecologists
Cornell University faculty
Members of the United States National Academy of Sciences
National Medal of Science laureates
Harvard University alumni
Foreign members of the Royal Society
Members of Academia Europaea
American atheists
American people of German-Jewish descent
German atheists
Emigrants from Nazi Germany to the United States
Immigrants to the United States
Fellows of the American Academy of Arts and Sciences
Members of the German National Academy of Sciences Leopoldina
Members of the American Philosophical Society
Chemical ecologists
American entomologists
Presidents of the American Society of Naturalists