Constituent values used to estimate the number of plants likely to be widowed if currently threatened vertebrate species become extinct.
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Estimates are extrapolated from well-known systems, focusing on islands and continents, so should be considered rough. Nevertheless, they are intended to allow assessment of the order of magnitude of potential mutualism disruption.*All species richness estimates are rounded to integer values in order to be realistic.
创建时间：
2015-12-02
