Biodiversity : Hotspot :: Natural selection :_______
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Biodiversity hotspot
A biodiversity hotspot is a biogeographic region with significant levels of biodiversitythat is threatened with destruction. For example forests are considered as biodiversity hotspots. The status is designated by Conservation International.[1][2]
Norman Myers wrote about the concept in two articles in “The Environmentalist” (1988),[3] and 1990[4] revised after thorough analysis by Myers and others “Hotspots: Earth’s Biologically Richest and Most Endangered Terrestrial Ecoregions”[5] and a paper published in the journal Nature.[6]
To qualify as a biodiversity hotspot on Myers 2000 edition of the hotspot-map, a region must meet two strict criteria: it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and it has to have lost at least 70% of its primary vegetation.[6] Around the world, 36 areas qualify under this definition.[7] These sites support nearly 60% of the world's plant, bird, mammal, reptile, and amphibian species, with a very high share of those species as endemics. Some of these hotspots support up to 15,000 endemic plant species and some have lost up to 95% of their natural habitat.[8]
Read in another language
Biodiversity hotspot
A biodiversity hotspot is a biogeographic region with significant levels of biodiversitythat is threatened with destruction. For example forests are considered as biodiversity hotspots. The status is designated by Conservation International.[1][2]
Norman Myers wrote about the concept in two articles in “The Environmentalist” (1988),[3] and 1990[4] revised after thorough analysis by Myers and others “Hotspots: Earth’s Biologically Richest and Most Endangered Terrestrial Ecoregions”[5] and a paper published in the journal Nature.[6]
To qualify as a biodiversity hotspot on Myers 2000 edition of the hotspot-map, a region must meet two strict criteria: it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and it has to have lost at least 70% of its primary vegetation.[6] Around the world, 36 areas qualify under this definition.[7] These sites support nearly 60% of the world's plant, bird, mammal, reptile, and amphibian species, with a very high share of those species as endemics. Some of these hotspots support up to 15,000 endemic plant species and some have lost up to 95% of their natural habitat.[8]
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