Penn State Wetlands Project Seeks Scientific Evaluation Criteria
... "The project also extensively researched bird, amphibian and plant species that inhabit only certain wetland habitats --called indicator species," Brooks says. "To truly create or restore a wetland in a specific site, you have to match the structure and characteristics of whatever wetland type best fit......Heber-Katz, "there has been impressivework done by amphibian biologists. They laid out the basic biological road mapfor the study of regeneration." Dr. Heber-Katz's discovery of the healer mouse occurred five years ago, when herlaboratory was using different autoimmune mouse models to study multiplesclerosis....Amphibian Mortality Due To UV Radiation
New Haven, Conn. D Many frog and other amphibian species throughout theworld appear to be experienc...al of recent attention to the suspectedincrease in amphibian deformities. However, most reports have been anecdotal,and no experiment in the field under natural...Two Environmental Articles: Deformed Frogs & Dioxin In Old Soil
...g the effects of pesticide degradation in theearly amphibian development. La Clair's group found tha...must be changed toinclude the relationship between amphibian development and the degradationproducts that form under natural conditions. Chlorinated Dioxins Fou...Increasing Threat Of Extinction For Amphibians? Scientists To Seek Answers At NSF Workshop
...lamanders gone? The world's leadingresearchers on amphibian declines will debate that question, and seekexplanations for continuing downward trends of some amphibian populations, at aworkshop sponsored by the National Science Foundation (NSF). Loss of wetland habit...USGS Responds to Amphibian Declines With Program In Great Smokey Mountains National Park
...ains National Park they can help predict trends in amphibian populations elsewhere around the nation. To surv...e population trends of an entire large and diverse amphibian fauna. The study, he said, will allow USGS scientists to ensure that amphibian population trends are...Master Molecule Forms Brains In Frogs And Elbows In Mice
...rs ago, Harland had originally chosen to work with amphibian embryos largely because of their size and ease of surgical manipulation. Since then, that decision has paid off, yielding valuable insights into basic developmental biological mechanisms, many of which appear to prevail throughout the animal kingdom....At Last, Zoologists May Know What Is Killing The World's Amphibians
...t could be a majorfactor underlying the decline in amphibian populations reported worldwide. The fungus has been found independently by teams in the US andAustralia. It belongs to a new genus of chytrid, a group thought to be relatedto the earliest fungi. Although other chytrids parasitise a range of o...... new fungal disease is causing mass mortalities in amphibian populations in both Australia and Panama. In 1993 the suspect was first found in Australia at the Melbourne Zoo and in the wild in forests near Cooktown in Northern Queensland. Dr Lee Berger and Dr Alex Hyatt, from CSIRO AAHL in Geelong began ......ming worldwide trend of declining and disappearing amphibian species. The purpose of his visit is to se...ervicebiologist Keith Langdon WHAT: Monitoring amphibian populations to provide clues to the growingphenomenon of declines, disappearances and deformities in...Wistar Scientists Locate Genes Involved In Mammalian Tissue Regeneration
.... Interestingly,retinoic acid is also involved in amphibian regeneration. Similar to what has been seen in amphibian regeneration, "healer" mice appear todevelop a blastema at the site of a wound. A blastema is a str...USGS Issues Wildlife Health Alert: Associates Virus With Salamander Die-Offs
...identified salamander disease is related to global amphibian declines is still unknown. Salamander die-offs hav...ed growing concern over population declines in all amphibian groups. These losses are now well documented and have occurred in a wide range of habitats, includin...Largest Acoustics Meeting In History Expected
...note production scheme (3aABa3). In a sense, this amphibian may be the closest thing to a real-life version of "Michigan J. Frog"--the animated amphibian first featured in a 1955 Warner Brothers cartoon, which showed it singing a wide range of songs but ...Amphibian Revival: Build It And They Will Come
...st ofSt. Louis. "I think we've shown that not all amphibian populations are at riskand that if habitats can be..., either throughobservation or documentation, that amphibian populations have declineddrastically due to myriad problems such asacid rain, ozone depletion, habit......cientists first began noticing a global decline in amphibian populations about15 years ago, but public concern really took off in the mid-1990s, when a groupof schoolchildren in Minnesota discovered a strikingly high rate of limbdeformities in local frogs. Speculation as to the cause has included possibleDNA d...Agriculture linked to red-legged frog decline in California
...ncrete evidence that agriculture mayplay a role in amphibian decline was presented by Carlos Davidson of theUniversity of California, Davis, at the June 1999 Society for ConservationBiology meeting. Davidson and H. Bradley Shaffer, also of UC Davis, studied the decline of theCalifornia red-legged frog, which ...Mosquito fish may be wiping out amphibians
...es, and this may be a leading cause of thecrash in amphibian populations round the world. "Exotic predators are one of the top three causes of amphibian decline,and mosquito fish are one of these major predators," says Lee Kats of PepperdineUniversity i...USGS issues wildlife health alert: Chytrid fungus infection
...ngus identified last year as being responsible for amphibian die-offs in Central America and Australia, accordi...e-offs of boreal toads a "poignant reminder" that amphibian populations in this country and in many other parts of the world are undergoing severe, unexplained ...Mass extinction of freshwater species in North America
...emaining crayfish species, 26%of the 243 remaining amphibian species, and 21% of the 1021 remaining fishspecies. One major threat to freshwater animals is non-native species. For instance,zebra mussels introduced from Europe are outcompeting native mussels in lakesand rivers. Another major threat to freshwate......istry, has shown that several frog, toad and other amphibian species, especially at their more vulnerable larva...a professor of zoology at OSU and expert on global amphibian declines. "Right here in the Pacific Northwest we're having localized extinctions of some amphibians...