An Interactive Annotated World Bibliography of Printed and Digital Works in the History of Medicine and the Life Sciences from Circa 2000 BCE to 2022 by Fielding H. Garrison (1870-1935), Leslie T. Morton (1907-2004), and Jeremy M. Norman (1945- ) Traditionally Known as “Garrison-Morton”

15791 entries, 13704 authors and 1919 subjects. Updated: September 13, 2022

LEOPOLD, Aldo

1 entries
  • 7084

A Sand County almanac, and sketches here and there.

New York: Oxford University Press, 1949.

This combination of natural history, philosophy, and poetic writing informed the environmental movement. It is perhaps best known for the following quote, which defines Leopold's land ethic: "A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise." In his chapter entitled "Thinking Like a Mountain" Leopold set out the concept of a trophic cascade, pointing out that killing a predator wolf carries serious implications for the rest of the ecosystem.



Subjects: BIOLOGY › Ecology / Environment