Q.Distinguish between endangered, vulnerable and rare species.
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Start your 14-day free trial to unlock the full solution →Step 1. Per the chapter's IUCN Red List criteria, a taxon is classed Endangered (EN) when the best available evidence shows it meets the threat criteria (A-E) at a level indicating it faces a very high risk of extinction in the wild — the chapter's examples include Elaeocarpus venustus and Eugenia singampattiana.
Step 2. A taxon is classed Vulnerable (VU) when it meets the criteria at a level indicating a high — but comparatively lower than Endangered — risk of extinction in the wild; the chapter's examples include Dalbergia latifolia (rosewood) and Santalum album (sandalwood).
Step 3. 'Rare' species, in general conservation usage (an older/informal category alongside the modern IUCN scheme), are species that naturally exist in small numbers or a restricted range because of their biology or habitat specificity — not because of an active decline or imminent threat. A rare species is therefore not automatically endangered or vulnerable, though its small population size can make it more susceptible to becoming so if new pressures appear. …
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