When a species shows genetic variation over a range of climatic factor, (temperature, humidity, vegetation, cover, altitude) or across geographical distance, the pattern of variation is called a cline (Huxley 1939). (Página 37 - Manuel of Ornithology. Avian Structure & Function - Noble S. Proctor & Patrick J. Lynch - Yale University 1993)
Cline
Inglés - Inglés: noun - a continuum with an infinite number of gradations from one extreme to the other: a point along a cline of activity.
- Biology: a gradation in one or more characteristics within a species or other taxon, especially between different populations. See also ecocline
- Origin: 1930s: from Greek klinein 'to slope'.
