The sad state of biodiversity

Factfile on biodiversity ahead of talks opening Monday under the UN's Convention on Biological Diversity (CBD) in Hyderabad, India.

— Out of 63,837 species on the "Red List" updated annually by the International Union for Conservation of Nature (IUCN), 19,817 are at risk of extinction.

— Of these, 3,947 are critically endangered, 5,766 endangered and 10,104 considered vulnerable. Sixty-three species have become extinct in the wild and 801 have been completely wiped out.

— Threatened groups include 41 percent of all , 33 percent of reef-building corals, 25 percent of mammals, 20 percent of plants and 13 percent of birds.

— Last year, scientists wrote in the journal Nature that Man may have unleashed the sixth known in Earth's history—the last having wiped out the dinosaurs some ago.

— About 1.75 million species of plants, insects and microorganisms have so far been identified by researchers, with scientists estimating there are between three million and 100 million species on Earth.

— Indian economist Pavan Sukhdev, in a report in 2010, estimated that biodiversity loss came at a cost of between 1.35 trillion and 3.1 trillion euros ($1.75 trillion and $4 trillion) per year.

— Countries pledged under the to achieve a "significant reduction" in the rate of plant and animal loss by 2010, a goal the UN has admitted was badly missed.

— The last CBD conference in Nagoya, Japan in 2010, adopted a 20-point plan to turn back biodiversity loss by 2020.

— Its targets include halving the rate of habitat loss, expanding water and land areas under conservation, preventing the currently on the threatened list, and restoring at least 15 percent of degraded ecosystems.


Explore further

2010 species pledge set to fail: conservationists

(c) 2012 AFP

Citation: The sad state of biodiversity (2012, October 5) retrieved 16 September 2021 from https://phys.org/news/2012-10-sad-state-biodiversity.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors