Sentences with phrase «study of amphibian»

The study confirmed that until we find a way to fight the fungus, the most actionable advice to date is to begin captive breeding, a move suggested in a seminal study of amphibian disappearance published in Science four years ago.

A new study of amphibians argues that growing smaller to take up less resources won't always help a species avoid extinction in the face of a shrinking habitat, climate change, and disease.

The 28 June letter was signed by leaders of the following organizations: AAAS; American Chemical Society; American Geophysical Union; American Institute of Biological Sciences; American Meteorological Society; American Public Health Association; American Society of Agronomy; American Society of Ichthyologists and Herpetologists; American Society of Naturalists; American Society of Plant Biologists; American Statistical Association; Association for the Sciences of Limnology and Oceanography; Association for Tropical Biology and Conservation; Association of Ecosystem Research Centers; BioQUEST Curriculum Consortium; Botanical Society of America; Consortium for Ocean Leadership; Crop Science Society of America; Ecological Society of America; Entomological Society of America; Geological Society of America; National Association of Marine Laboratories; Natural Science Collections Alliance; Organization of Biological Field Stations; Society for Industrial and Applied Mathematics; Society for Mathematical Biology; Society for the Study of Amphibians and Reptiles; Society of Nematologists; Society of Systematic Biologists; Soil Science Society of America; University Corporation for Atmospheric Research.

Not exact matches

These will include studies of non-game species of birds and mammals and investigation of the rich reptile and amphibian fauna of the area.

Explore pool edges for signs of amphibians, study water samples in search of insect larva, and determine what makes up the food chain of this ecosystem.

Two Shedd Aquarium researchers published a study in the Journal of Great Lakes Research last weekend on a little - known amphibian that resides in the Great Lakes region, the mudpuppy (Necturus maculosus), as part of a multi-year research project in partnership with Southern Illinois University's Department of Zoology, Center for Ecology, and Cooperative Wildlife Research Laboratory.

Dr. Lips studies population biology and the community ecology of amphibians.

Although we did most of the studies in frogs, we also followed with chick embryos and found cyclopean eyes, which is important because amphibians and birds are very different, says Rao.

«The decline in Madagascan amphibians is not just a concern for herpetologists and frog researchers,» says Dr Franco Andreone from the International Union for Conservation of Nature (IUCN), who is one of the study authors.

Researchers at the Universities of Lisbon (Portugal) and Uppsala (Sweden) studied the behaviour of three kinds of amphibians that inhabit the Iberian Peninsula: the European tree frog (Hyla arborea), the Mediterranean tree frog (Hyla meridionalis) and the Iberian painted frog (Discoglosus galganoi) to find out what effect heat waves can have on their diets.

A team of scientists with Spanish participants studied how heat waves affect the dietary choices of three species of amphibian found on the Iberian Peninsula: the European tree frog, the Mediterranean tree frog and the Iberian painted frog.

Today is the 70th birthday of Elizabeth Hay, an embryologist at Harvard Medical School who, through pioneering studies on regeneration of amphibian limbs, has shed light on the cellular mechanisms that transform normal cells into tumors.

The Darwin's frog (Rhinoderma darwinii) is the latest amphibian species to face extinction due to the global chytridiomycosis pandemic, according to an international study published today in the journal Proceedings of the Royal Society of London B.

Of the handful of similar analyses, a 2008 study found population losses in amphibians living in Yellowstone National Park in Wyoming, and another found that small mammals in Yosemite National Park in California had tracked warming temperatures in the past century by shifting their rangOf the handful of similar analyses, a 2008 study found population losses in amphibians living in Yellowstone National Park in Wyoming, and another found that small mammals in Yosemite National Park in California had tracked warming temperatures in the past century by shifting their rangof similar analyses, a 2008 study found population losses in amphibians living in Yellowstone National Park in Wyoming, and another found that small mammals in Yosemite National Park in California had tracked warming temperatures in the past century by shifting their range.

Amphibians are not necessarily known for their architectural acumen, but a new study shows that during the driest parts of the year some frogs take advantage the moist habitat offered by a ball of elephant poop.

A new study by WCS and other groups offers a glimmer of hope for some amphibian populations decimated by the deadly chytrid fungus: climate change may make environmental conditions for the fungus unsuitable in some regions and potentially stave off the spread of disease in African amphibian populations struggling to adapt to changes brought about by global warming.

A new study by WCS and other groups offers a glimmer of hope for some amphibian populations decimated by the deadly chytrid fungus.

A new detailed embryological study in birds reveals that their ankle has re-evolved an amphibian - like developmental pattern, with three separate elements, one of which becomes the dinosaurian ascending process

«Giant salamanders, geckos and olms: Vanishing species diversity in Siberia: Study of the development of amphibians and reptiles through twelve million years of geological history.»

However, other studies suggest there were originally around 70 amphibian species in this area, of which 50 were hit by chytrid.

«But this was not always the case,» explains Professor Dr. Madelaine Böhme, director of the Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP) at the University of Tübingen, who continues, «Our most recent study shows that the number of amphibian and reptile species used to be much higher in the course of geological history.»

«We know that other animals use polarisation patterns in the sky, and we have at least some idea how they do it: bees have specially - adapted photoreceptors in their eyes, and birds, fish, amphibians and reptiles all have cone cell structures in their eyes which may help them to detect polarisation,» says Dr Richard Holland of Queen's University Belfast, co-author of the study.

Out of the seven new species, five are facing considerable anthropogenic threats and require immediate conservation prioritization,» says Prof SD Biju, who led the new study and has also formally described over 80 new species of amphibians from India.

A team of paleontologists of the Museum für Naturkunde Berlin, the State University of New York at Oswego and Brown University shows in a new study of fossil amphibians that the extraordinary regenerative capacities of modern salamanders are likely an ancient feature of four - legged vertebrates that was subsequently lost in the course of evolution.

Jackson studies the amphibians and reptiles of Central Africa, so for her, sabbaticals abroad are absolutely necessary.

P. clarkii is an active predator of numerous aquatic organisms, including amphibian larvae,» the Spanish researcher Germán Orizaola from the University of Uppsala (Sweden) said, having published a study in the journal Ecology on the interaction between the two species.

The results of the study show that tetrapod diversity decreased after the rainforest collapse and the onset of drier conditions, largely due to the reduction in suitable habitats for amphibians which needed wet environments to survive.

The unique liver function of a South American amphibian, Siphonops annulatus, could pave the way to finding a cure to the devastating liver condition cirrhosis, a new study published in the Journal of Anatomy reports.

McGuire first encountered the newly described frog in 1998, the year he began studying the amazing diversity of reptiles and amphibians on Sulawesi, an Indonesian island east of Borneo and south of the Philippines.

According to Dr Robson Gutierre, a morphologist and leading author of this study, the South American amphibian has very unique liver cells, known as melanomacrophages, which can remove and break down collagen as part of its natural function.

We are constantly amazed by nature, and this particular and not - well - studied species of amphibian could help us find a way to stop or even reverse liver cirrhosis.»

The paper, published in the journal PLOS ONE, is one of the biggest studies of its kind, assessing all of the world's birds, amphibians and corals.

The authors of the new study found that 85 percent of world's 4,118 threatened mammals, birds, and amphibian species are not adequately protected in existing national parks, and are therefore vulnerable to extinction in the near term.

This discovery is fundamental for understanding the evolutionary ecology and behavior in anuran amphibians» says Prof. SD Biju from University of Delhi, who led this study.

He and his colleagues plan to study how the presence of oak toads, miniscule amphibians that also live in the bogs and eat insects, affects the sundews.

I study amphibian chytrid fungus, and this was one of the species we believe has disappeared likely because of this disease back in the»80s as it swept through Central America.

To conduct their new study, she and Pimm created a comprehensive database of species distributions, based on maps compiled by hundreds of naturalists, that show where species of amphibians, birds and mammals occur in China.

Sax, who studies amphibian responses to climate change, says, «There are a lot of species you wouldn't normally be concerned about that might be in trouble in the future» because a barrier stands between their current habitat and one they might need to occupy in coming decades.

To understand TH, director emeritus Donald Brown studies one of the most dramatic roles of the hormone, the control of amphibian metamorphosis — the process by which a tadpole turns into a frog.

Notophthalmus viridescens, an urodelian amphibian, represents an excellent model organism to study regenerative processes, but mechanistic insights into molecular processes driving regeneration have been hindered by a paucity and poor annotation of coding nucleotide sequences.

Viktor Hamburger of Washington University extended Harrison's work but chose to study the chick embryo because its nervous system, although more complex than that of an amphibian, lends itself better to experimental analysis: its nerve centers are more clearly delineated and their strong affinity for silver stain enables the experimenter to visually examine the nerve structures more easily.

A 2 - year study of a population in Belgium, now entirely wiped out, has revealed that these amphibians can't develop immunity to the fungus, as was hoped.

The Donald Brown laboratory uses amphibian metamorphosis to study complex developmental programs such as the development of vertebrate organs.

At the University of California, Berkeley, he studies the effect of commercial chemicals on amphibians.

«This pathogen infects many different amphibian species — sometimes without causing disease — and can survive in the environment outside of its host, so it's not going away anytime soon,» said Allison Byrne, a doctoral student at the University of California — Berkeley who is studying chytridiomycosis.

«In this study, we made the exciting discovery that a handful of amphibian species — some of which were thought to have been completely wiped out — are persisting, and may even be recovering, after lethal disease outbreaks,» study lead author Jamie Voyles, a disease ecologist at the University of Nevada — Reno, said in a statement.

While mouse has been successfully used to study multiple aspects of kidney development, the amphibian pronephros of Xenopus offers a valuable alternative to explore the underlying molecular and cellular mechanisms.

Studies on other amphibian species have revealed strong effects of this type, and Jayna has discovered that the same thing happens with cane toads.

He has particular interests in (1) the use of ancient DNA methods to document changes in genetic variation through time and phylogenetic relationships of extinct or endangered organisms (especially of the recently extinct Hawaiian avifauna); (2) the use of highly variable genetic markers to measure genetic structure and relatedness, and to ascertain mating systems, in natural populations, and (3) the use of genetics to study the evolutionary interactions between hosts, vectors and infectious disease organisms (e.g., major projects on introduced avian malaria in native Hawaiian birds and invasive chytrid fungus in amphibians).

The scope of the studies funded covers a diverse set of health challenges across a wide range of species, from a lethal genetic disorder in California condors to deadly fungal diseases threatening the world's amphibian populations.