|  Share | Cite


cline, in biology, any gradual change in a particular characteristic of a population of organisms from one end of the geographical range of the population to the other. Gradients of characteristics usually accompany, and are responses to, environmental gradients; for example, a mountain range features gradients from top to bottom such as a temperature gradient (colder to warmer) and a humidity gradient (wetter to drier). They may also reflect patterns of individual migration or gene flow. In species of birds and mammals, there is usually a cline in body size, with smaller individuals in warm climates and larger individuals tending to be found in colder climates.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on cline from Infoplease:

  • Patsy Cline - Cline, Patsy Cline, Patsy, 1932–63, American country singer, b. Winchester, Va., as Virginia ...
  • cline: meaning and definitions - cline: Definition and Pronunciation
  • Patsy Cline - Patsy Cline (Virginia Patterson Hensley) country musician Born: 9/8/1932 Birthplace: Winchester, ...
  • Patsy Cline - Biography of Patsy Cline, Country and pop sensation who sang "Crazy"
  • Cyrus CLINE - Cyrus CLINE (1856-1923) CLINE, Cyrus, a Representative from Indiana; born near Mansfield, Richland ...

See more Encyclopedia articles on: Biology: General