biochoren.

Brit.

/ˈbʌɪə(ʊ)kɔː/, U.S.

/ˈbaɪoʊkɔr/

Origin: A borrowing from German. Etymon: German Biochore.

Etymology: < German Biochore (W. Köppen 1900, in Geogr. Zeitschr. 6 675) < bio- bio- comb. form + ancient Greek χώρα place, country (see choral adj.²).

Ecology.

1. In the terminology of Köppen and Raunkiaer: the boundary of a phytogeographical region designated by its climate and relative proportions of particular forms of plant life. Now disused.

ΘΚΠ

the world > life > biology > balance of nature > environment or habitat > [noun] > portion of > boundaries between

biochore1911

1911 Bot. Gaz. 51 310 From an exhaustive study of local floras he [sc. Raunkiaer] has drawn circumpolar biochores, connecting regions with similar proportions of chamaephytes.

1934 A. G. Tansley in H. Gilbert-Carter tr. C. Raunkiaer Life Forms of Plants p. xiii The ‘biochore’,..originally Köppen's term and analogous to the climatological terms isotherm and isohyet, is the line passing through all the areas whose floras show the same percentage number of a characteristic life-form: biochores can only be determined by the analysis of a large number of adjacent local floras.

2. A group of similar biotopes; a subdivision of the biosphere (with various possible ranks), (also) spec. the largest such division, as forest, desert, grassland, etc.

ΚΠ

1937 W. C. Allee & K. P. Schmidt Hesse's Ecol. Animal Geogr. ix. 137 Regions with a general similarity of habitus are recognized as biochores, which may be united as superbiochores or subdivided into subbiochores; areas within the biochores which have uniform external habitat conditions are biotopes.

1957 P. Dansereau Biogeogr. iii. 125 The biochore is the geographical environment where certain dominant life-forms appear to be adapted to a particular conjunction of meteorological factors... Each biochore is characterized by a major type of vegetation... Within each biochore there develops one or more formations which extend over an entire province.

2000 Palaeogeogr., Palaeoclimatol., Palaeoecol. 158 1 Biochores are highly dynamic units that not only expand and shrink in range, but also change in rank (tier) through time.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).

单词	biochore
释义	biochoren. Brit. /ˈbʌɪə(ʊ)kɔː/, U.S. /ˈbaɪoʊkɔr/ Origin: A borrowing from German. Etymon: German Biochore. Etymology: < German Biochore (W. Köppen 1900, in Geogr. Zeitschr. 6 675) < bio- bio- comb. form + ancient Greek χώρα place, country (see choral adj.²). Ecology. 1. In the terminology of Köppen and Raunkiaer: the boundary of a phytogeographical region designated by its climate and relative proportions of particular forms of plant life. Now disused. ΘΚΠ the world > life > biology > balance of nature > environment or habitat > [noun] > portion of > boundaries between biochore1911 1911 Bot. Gaz. 51 310 From an exhaustive study of local floras he [sc. Raunkiaer] has drawn circumpolar biochores, connecting regions with similar proportions of chamaephytes. 1934 A. G. Tansley in H. Gilbert-Carter tr. C. Raunkiaer Life Forms of Plants p. xiii The ‘biochore’,..originally Köppen's term and analogous to the climatological terms isotherm and isohyet, is the line passing through all the areas whose floras show the same percentage number of a characteristic life-form: biochores can only be determined by the analysis of a large number of adjacent local floras. 2. A group of similar biotopes; a subdivision of the biosphere (with various possible ranks), (also) spec. the largest such division, as forest, desert, grassland, etc. ΚΠ 1937 W. C. Allee & K. P. Schmidt Hesse's Ecol. Animal Geogr. ix. 137 Regions with a general similarity of habitus are recognized as biochores, which may be united as superbiochores or subdivided into subbiochores; areas within the biochores which have uniform external habitat conditions are biotopes. 1957 P. Dansereau Biogeogr. iii. 125 The biochore is the geographical environment where certain dominant life-forms appear to be adapted to a particular conjunction of meteorological factors... Each biochore is characterized by a major type of vegetation... Within each biochore there develops one or more formations which extend over an entire province. 2000 Palaeogeogr., Palaeoclimatol., Palaeoecol. 158 1 Biochores are highly dynamic units that not only expand and shrink in range, but also change in rank (tier) through time. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021). < n.1911
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