Tag: "amphibian" at biology news
Lost forest yields several new species
...also found a high diversity of birds, reptile, and amphibian
species. The expedition may also yield a number of new plant species; survey botanists were unable to identify some 10 percent of the collected samples, which will be sent to specialists in the near future. Given the findings with the vertebrates,...
5 OHSU faculty members singled out for honors
...ll and developmental biology, using sea urchin and amphibian
embryos to study mechanisms of early morphogenesis, when rapidly dividing cells first begin to differentiate and organize themselves into functional tissues. He pioneered the use of confocal microscopy live cell imaging at OHSU. His research which h...
The new wildlife refuge -- Golf courses?
...ations that would improve golf course habitats for amphibian
populations in a paper published in USGA Turfgrass...nds in the late summer or early fall would benefit amphibian
populations and biodiversity. Its a hard concept for people to understand, but non-permanent wetla...
Frog molecule could provide drug treatment for brain tumors
...y inhibitor molecules. But because Amphinase is an amphibian
ribonuclease, it can evade the mammalian inhibitor molecules to attack the cancer cells. As a treatment, it is most likely to be injected into the area where it is needed. It will have no effect on other cells because it is only capable of recognis...
Caribbean frog populations started with single, ancient voyage on South American raft
...e Caribbean Islands have the highest proportion of amphibian
species threatened with extinction. The anatomy of Caribbean frogs previously had led scientists to conclude that species in Cuba and other western-Caribbean islands were related to different mainland species than were the species on Puerto Rico an...
Caribbean frogs started with a single, ancient voyage on a raft from South America
...e Caribbean Islands have the highest proportion of amphibian
species threatened with extinction. Hedges and co...ctylines -- have been considered a "black hole" in amphibian
biology because of the poor understanding of their evolutionary history," explained Hedges. Scienti...
Researchers find 24 species believed new to science in Suriname rainforest
... sources clean enough to support abundant fish and amphibian
life. Among the 24 species believed new to science are an Atelopus frog with brilliant purple markings, four Eleutherodactylus frog species, six species of fish, 12 dung beetles and an ant species. The scientists also found 27 species endemic to th...
Bacteria show promise in fending off global amphibian killer
...o repel a deadly fungus being blamed for worldwide amphibian
deaths and even extinctions. Though the research i...n factors imperiling up to one third of the worlds amphibian
populations. "The exciting aspect is that we identified at least one bacterium from the skin that ...
Amphibians in losing race with environmental change
...ence. "We know that there are various causes for amphibian
population declines, including UV-B light exposure...y at OSU and one of the world's leading experts on amphibian
decline. "But looked at in a different way, it's not just that there are threats and pressures amp...
Ancient amphibians evolved a bite before migrating to dry land
... termed "sutures" -- in the tops of these fish and amphibian
skulls reveal how these extinct animals captured p... that in one key transitional species, the aquatic amphibian
Acanthostega, the shapes of the junctions between adjacent skull bones are consistent with biting pr...
Salamanders suffer delayed effects of common herbicide
...raise concerns over the role of atrazine in global amphibian
declines. The results also suggest that while imp...my of Sciences, could have implications for global amphibian
declines. "Salamanders, and amphibians in general, are crucial to ecosystems, as both predators an...
Leeches ferry infection among newts
...ht not be as contagious as other leech-transmitted amphibian
parasites. That is because this particular parasite lodges itself in muscle tissue instead of blood. A leech would have to be feeding right on top of a newt's infected muscle in order to transmit the infection. However, it is still unclear if the spo...
Recently discovered species gain protection
...and belongs to one of the most globally threatened amphibian
groups, the harlequin toads. In addition to the piha, the reserve also contains populations of many other rare and restricted birds, including the black tinamou (known from one other site in southern Colombia, and one in central Peru), sharpbill, St...
Beavers helping frogs, toads survive
... conserving valuable wetland habitat for declining amphibian
populations, a University of Alberta study shows. ... the study suggests. The findings could benefit amphibian
conservation efforts for forestry and energy industries, by making room for beaver dams in their lan...
NYC tadpoles fly to Puerto Rico
...pread tree frog that is Puerto Rico's most popular amphibian
(as well as the island's unofficial mascot), the P...y that zoos are helping to stop the global loss of amphibian
species," added Foster. "To date, over 200 species of frogs, toads and salamanders have disappeared ...
LSU professor discovers new species
...re than 80,000 specimens in the LSUMNS reptile and amphibian
collection, are important because taxonomy the science of describing, naming and classifying organisms has implications for basic and applied fields of science. "We can't conserve what we don't know we have. It is imperative that we know what spec...
Newts which regrow their hearts
...archers working with Thomas Braun in Nauheim. This amphibian
comes from the wetlands of North America, but it also feels quite at home in the Institute’s aquaria. It is a small animal that scientists find interesting for a particular reason: whereas humans cannot regenerate damaged heart muscle adequately afte...
Global map shows new patterns of extinction risk
...l mean that large numbers of endangered mammal and amphibian
species will also be protected. The new study show...into 100km x 100km grids, and all mammal, bird and amphibian
species within each grid square were counted, using a variety of pre-existing, but never-before comb...
Boston University biologists discover amphibian eggs use defenses against water molds
...ality for aquatic eggs of a wide range of fish and amphibian
species throughout the world," said Dr. Gomez-Mest...aid Touchon. According to the results, all three amphibian
species display behaviors that help protect them from or survive infections by water molds. These de...
'Killer' B cells demonstrate evolutionary link between fish and mammal immune systems
...research also showed that a significant portion of amphibian
B cells retained their digestive traits. "The immune systems of amphibians and fish are far less advanced than ours," Sunyer said. "When you only have a rudimentary adaptive immune system, it helps to have more phagocytic cells to compensate, which...
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