HOME >> BIOLOGY >> NEWS
Amphibian declines complicated, disturbing

WASHINGTON, D.C. -- People who are looking for a magic bullet that will explain all of the amphibian deaths and declines around the world are going to be disappointed, a leading expert said Friday at the annual meeting of the American Association for the Advancement of Science

It's now a certainty that there are multiple causes which are contributing to this problem, said Andrew Blaustein, a professor of zoology at Oregon State University and one of the pioneers in this field of study. But the lack of a single, definite cause does not diminish the seriousness of this alarming ecological phenomenon, he said.

"At this point we can say for sure that there are several causes of amphibian declines, which include rising levels of UV-B radiation in sunlight, pathogens, pollutants, habitat destruction, introduced predators and most recently, crop fertilizers," Blaustein said. "But the overall result is that this group of animals which has been around since the time of the dinosaurs is now in serious decline all over the world. And some of the things that are killing frogs almost certainly have implications for other animal species, including humans."

The multiple causes of amphibian declines, in fact, helps to illustrate how ecological changes may have a synergistic effect to compound problems, Blaustein said. In various instances it might be that UV-B radiation, or pathogens, or high nitrate levels by themselves would not be enough to cause death or deformity.

Put them all together and you have far more serious impacts, he said. Such as the 14 species of amphibians that have disappeared from Australia in recent years. The five species of amphibians in the Pacific Northwest of the United States that are listed as candidates for the endangered species list. The extinction of the golden toad in Costa Rica. Massive egg mortalities of the Cascades frog in Oregon. Amphibian declines in Europe, South America, Asia, Africa. Even problems in the pri
'"/>

Contact: Andrew Blaustein
blaustea@bcc.orst.edu
541-737-5356
Oregon State University
17-Feb-2000


Page: 1 2 3

Related biology news :

1. Amphibians life stages influence contaminant transfer from aquatic to terrestrial environments
2. Amphibians and crippling parasites
3. Amphibian mortality linked to global climate change
4. Amphibian mortality linked to climate change
5. Amphibian declines and deformities: what is the latest?
6. Amphibian Revival: Build It And They Will Come
7. Secretary Babbitt To Visit Smokies To Learn More Of Scientific Amphibian Project And Declining Frog And Toad Populations
8. At Last, Zoologists May Know What Is Killing The Worlds Amphibians
9. USGS Responds to Amphibian Declines With Program In Great Smokey Mountains National Park
10. Increasing Threat Of Extinction For Amphibians? Scientists To Seek Answers At NSF Workshop
11. Amphibian Mortality Due To UV Radiation

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Amphibian declines complicated disturbing

(Date:7/8/2015)... , July 8, 2015 Summary ... and the fourth most fatal, with a mortality rate ... poor prognosis of pancreatic cancer patients has highlighted a ... which is not being met by the current market. ... array of products with varying molecule types and mechanisms ...
(Date:7/7/2015)... , July 7, 2015  Based on its ... & Sullivan recognizes Credence ID, LLC with the ... Company of the Year Award. Credence ID has ... in its mission of offering enrollment and identification ... As Credence ID was formed by experts from ...
(Date:6/30/2015)... , June 30, 2015 To bolster its ... provider HYPR Corp. announced today the addition of two new ... serve as board advisor and David Raviv will ... team underscore HYPR Corp.,s commitment to providing the most secure ... Dimitri Sirota co-founded Layer 7 Technologies, a provider of ...
Breaking Biology News(10 mins):Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 2Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3
(Date:7/30/2015)... VANCOUVER, Washington , July 30, 2015 ... "Biosimulation Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, ... (Drug Discovery & Development, Preclinical, Clinical Trial), by End ... the Biosimulation Market is expected to reach USD 2,107.99 ... at a CAGR of 15.29%. Browse ...
(Date:7/30/2015)... over 60,000 customers across the globe, ISN improves the efficiency and effectiveness of contractor ... 60,000 safe and reliable contractors in over 80 countries. ... ... Over 60,000 Worldwide Customers In More Than ... Headquartered in Dallas, TX , ISN has additional offices in ...
(Date:7/30/2015)... York, NY (PRWEB) , ... July 30, 2015 , ... As part of its 2015 ... raw material and technical service business units, Whitehouse Laboratories is pleased to ... will be adjacent to the Container Center of Excellence and will be strictly dedicated to ...
(Date:7/29/2015)... , July 30, 2015 According ... Market - Growth, Trends & Forecasts (2015-2020), , published by ... US$ 30.25 billion by the end of 2020, with ... accounting for more than 40% of the global market size. ... at a CAGR of 13.7% during the period of (2015-2020). ...
Breaking Biology Technology:Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3Whitehouse Labs Formally Announces Plans to Open a Microbiological Laboratory 2Asia Pacific to Dominate the Global Stem Cell Market - Vericel Corporation, Ocata Therpeutics, Athersys Inc., Cryo-Cell International, Geron Corporation, StemCells, Inc. Among the Major Players 2Asia Pacific to Dominate the Global Stem Cell Market - Vericel Corporation, Ocata Therpeutics, Athersys Inc., Cryo-Cell International, Geron Corporation, StemCells, Inc. Among the Major Players 3
Cached News: