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Biodiversity Overview

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Questions and Answers

What does the term 'biodiversity' refer to?

The enormous variety of life on Earth

How many estimated species of plants and animals are there in existence?

Around 8.7 million

What are areas with extremely high levels of biodiversity called?

Hotspots

What are endemic species?

Species found only in one particular location Signup and view all the answers

Name some areas with high biodiversity.

Mexico, South Africa, Brazil, southwestern United States, Madagascar Signup and view all the answers

What are the two criteria outlined by Norman Myers to qualify an area as a biodiversity hotspot?

At least 1,500 endemic vascular plant species and having lost at least 70% of its original surface area Signup and view all the answers

As of 2022, how many official biodiversity hotspots are recognized worldwide?

36 Signup and view all the answers

What percentage of Earth's known endemic mammals, reptiles, and bird species are found in biodiversity hotspots?

Nearly 43% Signup and view all the answers

How many humans are estimated to reside in biodiversity hotspots?

Around two billion Signup and view all the answers

What are vascular plants, and why are they significant in defining biodiversity hotspots?

Vascular plants have tissues arranged in unique patterns for fluid transport, and they help identify unique plant species in hotspots. Signup and view all the answers