HOME >> BIOLOGY >> NEWS
Concerns remain about UVB damage to amphibians

CORVALLIS, Ore. The exposure of amphibians to damaging levels of ultraviolet-B radiation in sunlight is likely a significant part of global amphibian declines, researchers say, despite some recent suggestions to the contrary and a scientific controversy about what role UV-B actually plays in this crisis.

Scientists from the United States, Canada and Spain have outlined their understanding of UV-B's biological effects on amphibians in an article in Ecology, a professional journal.

In it, they respond to some recent studies that have called into question whether UV-B radiation is causing severe health problems or mortality in amphibians.

"At this point, we believe the broad body of research conclusively demonstrates that UV-B radiation can cause damage to many species of amphibians at every stage of their life cycle, from egg to adult," said Andrew Blaustein, a professor of zoology at Oregon State University and the lead author on the Ecology commentary. "It appears the damage may be even worse than we originally thought a few years ago, and it's clear that rising levels of UV-B radiation, which could be caused by erosion of Earth's protective ozone layer, can play at least a part in the amphibian declines we're seeing around the world."

Most scientists now believe, Blaustein said, that a wide range of causes explain the totality of amphibian declines, and those causes include habitat destruction, disease, parasites, introduced exotic species, environmental contaminants and other aspects of global climate change. In some cases complex chains of interlaced ecological effects can lead to amphibian disease, deformity or death.

But UV-B radiation is still high on the list of concerns, the researchers say.

"At first our field studies showed only the damage that increased levels of UV-B radiation could do to amphibian embryos, where they caused mortality in some species and not in others," Blaustein said. "But with more research we've se
'"/>

Contact: Andrew Blaustein
blaustea@science.oregonstate.edu
541-737-5356
Oregon State University
1-Jun-2004


Page: 1 2 3

Related biology news :

1. Top Experts To Address Top Food Safety Concerns At IFT Meeting
2. Blacks Environmental Concerns Equal/Exceed Whites
3. Concerns For Australian Sea Lion
4. Reclaimed Waste Water Can Augment Municipal Drinking-Water Supplies But Concerns Must Be Addressed
5. Twin Study May Ease Parents Concerns About Late Talkers, Underscores Impact Of Environment On Language Development
6. Pollution history documented through shell remains provides tool to study ecosystem change
7. Americans knowledge of genetically modified foods remains low and opinions on safety still split
8. More than 700 threatened species remain completely unprotected, new study shows
9. Scientists find fully differentiated blood cells remain able to switch identity
10. Overfishing may diminish genetic diversity even when millions of fish remain
11. Study shows fossil records remain stable in storm beds

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


(Date:3/30/2017)... -- On April 6-7, 2017, Sequencing.com will host the world,s ... at Microsoft,s headquarters in Redmond, Washington ... health and wellness apps that provide a unique, personalized ... is the first hackathon for personal genomics and the ... the genomics, tech and health industries are sending teams ...
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
(Date:3/23/2017)... India , March 23, 2017 The report "Gesture ... Touchless Biometric), Industry, and Geography - Global Forecast to 2022", published by MarketsandMarkets, ... at a CAGR of 29.63% between 2017 and 2022. ... ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... maternal age to IVF success. , After comparing the results from the fresh ...
(Date:10/10/2017)... , ... October 10, 2017 , ... Dr. Bob Harman, ... his local San Diego Rotary Club. The event entitled “Stem Cells ... and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two human ...
(Date:10/9/2017)...  BioTech Holdings announced today identification and patenting ... stem cell therapy prevents limb loss in animal ... that treatment with ProCell resulted in more than ... to standard bone marrow stem cell administration.  Interestingly, ... of therapeutic effect.  ...
(Date:10/7/2017)... ... October 06, 2017 , ... With ... microscopy and surface analysis, Nanoscience Instruments is now expanding into Analytical Services. ... range of contract analysis services for advanced applications. Services will leverage techniques ...
Breaking Biology Technology:
Cached News: