| 释义 |
co-dominant, a. and n.|kəʊˈdɒmɪnənt|
[co- 2.]
A. adj. Sharing dominance equally; of similar frequency of occurrence or similar importance. Esp. in Forestry (see quot. 1928) and Ecology.
1926Tansley & Chipp Stud. Veg. ii. 11 There may be several species..which..together dominate the association, but these ‘co-dominant’ species most frequently..belong to the same life-form. 1928Funk's Stand. Dict., Co-dominant, a., forming a part of the main canopy, but not among the tallest: said of forest-trees. 1943Ess. & Stud. 1942 XXVIII. 69 If account was taken of a further number of poems in which love, though not the sole or predominant theme, came in as a parallel co-dominant theme, the number was 250—every other poem. 1964V. J. Chapman Coastal Veget. i. 5 The General Salt Marsh community, where there are a number of co-dominant species.
B. n. A species, etc., that is co-dominant.
1933Forestry VII. 122 These tables show that there is little difference between the various stem-classes—dominants, co-dominants, and sub-dominants—as regards the distribution of form-classes. 1933A. M. Woodbury in Ecol. Monogr. III. 165 Codominants—any of the equally dominant forms. 1940Geogr. Jrnl. XCV. 451 Hraun heath has several co-dominants, each of which is locally dominant in associations, e.g. Betula, Salix [etc.]. 1953Brit. Commonw. For. Term. i. 28 Codominant. (a) A tree with a portion of its crown in the upper canopy, but below the crown level of the dominants... (b) A species which shares dominance more or less equally with others. |