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:1/30/2017)... Jan. 30, 2017   Invitae Corporation (NYSE: ... genetic information companies, today announced that it will report ... provide 2017 guidance on Monday, February 13, 2017, and ... day at 4:45 p.m. Eastern / 1:45 p.m. Pacific. ... will briefly review financial results, guidance, and recent developments ...
(Date:1/24/2017)... PHILADELPHIA , Jan. 24, 2017  It ... a baby,s sock that monitors vital signs and ... instance, an infant,s oxygen saturation level drops. But ... undue alarm to parents, with no evidence of ... "These devices are marketed aggressively to parents of ...
(Date:1/18/2017)... ROCKVILLE, Md. , Jan. 18, 2017  In ... with respect to mergers and acquisitions (M&A), and Kalorama ... reasons for such acquisitions have been shifting. Generally, uncertainty ... and the U.S. has changed the acquisitions ... situation has resulted in companies buying partners outside of ...
Breaking Biology News(10 mins):
(Date:2/18/2017)... 2017 Kurzlehrgang mit Fokus ... Zelltherapie-Studien, Poster legt metaproteomische Analyse des Darm-Mikrobioms bei Säuglingen ... ... Dr. Yoav Peretz , Scientific Director bei ImmuneCarta, ... Assays zum Nachweis intrazellulärer Zytokine bei adoptiven Zelltherapie-Studien im ...
(Date:2/18/2017)... ... February 17, 2017 , ... ... business in Hong Kong. , Nerium International is proud to introduce its Age-Defying ... Contour Cream, NeriumAD™ Formula to consumers across Hong Kong. The luxury skincare products ...
(Date:2/17/2017)... PUNE, India , February 17, 2017 /PRNewswire/ ... research report "Biomarkers Market by Product (Consumables, Service), ... Disorders), Application (Diagnostics Development, Drug Discovery and Development, ... MarketsandMarkets, the market is projected to reach USD ... in 2016, growing at a CAGR of 13.8% ...
(Date:2/17/2017)... 17, 2017  If only one in every ... mutation-conferring resistance to chemotherapy, thousands of cancer cells ... focused on finding these mutations in ever-smaller subpopulations ... tumor DNA in blood — to guide treatment ... Unfortunately, however, detecting these genetic anomalies may ...
Breaking Biology Technology:
Cached News: