单词 | polyclimax |
释义 | polyclimaxn. Ecology. The presence of several distinct stable communities of plants within a given region. Frequently attributive. ΘΚΠ the world > life > biology > balance of nature > [noun] > replacement of one species by another > climax climax1899 post-climax1916 preclimax1916 subclimax1916 proclimax1930 polyclimax1933 monoclimax1934 plagioclimax1935 disclimax1936 1933 Jrnl. Ecol. 21 307 In the Arctic, zonal distribution of large vegetation units..appears to be replaced by changing complexes composed of numerous smaller units... The polyclimax type is general. 1960 N. Polunin Introd. Plant Geogr. xi. 331 It seems best to admit the likelihood, in any one region, of several different climax communities as representing what may then be termed a ‘polyclimax’. 1999 Ann. Assoc. Amer. Geographers 89 469/2 Davisian landform cycles and polyclimax, or multiple successional, pathways are also examples of convergence toward one or more endpoints that can occur independently of external changes. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1933 |
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