HOME >> BIOLOGY >> NEWS
Amphibians in dramatic decline; Up to 122 extinct since 1980

October 14, 2004 (Washington, DC/Gland, Switzerland) The world's amphibian species are under unprecedented assault and are experiencing tens of thousands of years worth of extinctions in just a century, according to the most comprehensive study ever conducted. More than 500 scientists from over 60 nations contributed to the Global Amphibian Assessment, the key findings of which were published on-line by Science Express this afternoon, and will appear within the next few weeks in the journal Science.

Over the past three years, scientists analyzed the distribution and conservation status of all 5,743 known amphibian species which include frogs and toads, salamanders, and caecilians. Of these, 1,856 or 32 percent are now considered threatened with extinction. In addition, sufficient data are lacking to accurately assess the status of nearly 1,300 other species, most of which scientists believe are also threatened.

Amphibians are widely regarded as "canaries in the coal mine," since their highly permeable skin is more immediately sensitive to changes in the environment, including changes to freshwater and air quality.

"Amphibians are one of nature's best indicators of overall environmental health," said Russell A. Mittermeier, president of Conservation International (CI). "Their catastrophic decline serves as a warning that we are in a period of significant environmental degradation."

Key findings of the study include:

  • According to the IUCN Red List of Threatened Species, at least 1,856 amphibian species are threatened with extinction, representing 32 percent of all species. By comparison, only 12 percent of all bird species and 23 percent of all mammal species are threatened.

  • At least nine species have gone extinct since 1980, when the most dramatic declines began. Another 113 species have not been reported from the wild in recent years and are considered to be possibly extinct.


    '"/>



Contact: Brad Phillips
b.phillips@conservation.org
202-912-1532
Conservation International
14-Oct-2004


Page: 1 2 3

Related biology news :

1. Amphibians in losing race with environmental change
2. Jefferson scientists patent dramatically improves
3. Researchers witness natural selection at work in dramatic comeback of male butterflies
4. Growing nerve cells in 3-D dramatically affects gene expression
5. Plant size morphs dramatically as scientists tinker with outer layer
6. Climate change creates dramatic decline in red-winged black bird population
7. Research could lead to dramatic improvement in scanning for serious diseases
8. Brain gene shows dramatic difference from chimp to human
9. Lack of a key enzyme dramatically increases resistance to sepsis
10. Simple idea to dramatically improve dengue vaccinations
11. Moderate lifetime reductions in LDL cholesterol dramatically reduce risk of heart disease

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/28/2020)... ... 27, 2020 , ... CrucialTrak, a global designer and manufacturer of biometric access ... (CEG) to market and sell its complete line of biometric readers and access ... infrastructure optimization solutions . , Brett Mason, CrucialTrak’s Director of Channel Sales for ...
(Date:5/28/2020)... ... May 28, 2020 , ... Actuate Therapeutics, ... their 1801 Phase 1/2 study (NCT03678883, EudraCT #: 2018-003739-32) will be presented at ... place virtually on May 29th, 2020. Dr. Benedito Carneiro, Brown University’s principal investigator ...
(Date:5/21/2020)... ... May 21, 2020 , ... ... background and medical screening, announces the launch of a testing service aimed ... safe. The new service is provided by ClearStar’s Medical Information Services (“MIS”) ...
Breaking Biology News(10 mins):
(Date:6/23/2020)... ... 23, 2020 , ... Kerafast Inc. , developers of ... the availability of the Delta-G-VSV Pseudotyping System for coronavirus research applications. The system, ... SARS-CoV-2 viral entry and COVID-19 vaccine effectiveness at just biosafety level 2 (BSL-2) ...
(Date:6/23/2020)... ... June 22, 2020 , ... Dracen Pharmaceuticals Inc., announced today ... 22-24 during the American Association for Cancer Research Virtual meeting. One poster describes ... consistent single agent activity in KEAP1 mutant tumor models of NSCLC. ...
(Date:6/11/2020)... ... , ... Greffex, a leading genetic engineering company, with the ... vectors, recently announced a key manufacturing agreement with FUJIFILM Diosynth Biotechnologies to produce ... successful gene therapy delivery vehicle (vector) with broad applications for delivering treatments including ...
(Date:6/11/2020)... ... 2020 , ... Reducing carbon emissions has been and will continue to be ... market dips, ways to reduce CO2 is something we can’t avoid. , To ... biofuels being produced today are created from recycled cooking oil or crops. Unfortunately, these ...
Breaking Biology Technology:
Cached News: