Sentences with phrase «of amphibians as»

In addition to the reptiles out basking in the sun, we found a long list of amphibians as well.

But because the concentrations that affected the animals were so small — 30 times lower than the current allowable limit in drinking water — the findings support the use of amphibians as environmental sentinels.

Between the two pairs of footprints that have been preserved in sandstone is a gully gouged by the body of the amphibian as it crawled along.

Not exact matches

But as far as I'm concerned I just made an argument based on the premise of invisible yellow howling mute amphibian tree monkeys, so this isn't a line of debate I plan to carry on too long.

Intelligent agents as amphibians: they operate both in the realm of the causality of nature and the causality of reason.

It lies in the very nature of intelligent beings that they function as amphibians able to operate conjointly and concurrently both in the realm of concrete experience and in that of abstract thought.

It is a relatively minor matter whether God infused the transcendent capacity into a freshly made creature or an upwardly mobile hominid that had evolved through various transformations, from an amoeba to a tadpole to an assortment of amphibians and mammals until, as in the familiar diagrams and animations, it looks more or less like Carl Sagan.

As a rational creature, the great amphibian transcending time, man bears the stamp of God's image.

In reptiles, as in amphibians and fishes, there is a single hearing bone, the stapes, which is simply a straight rod that links the eardrum to the hearing structures of the inner ear and the brain.

The fossil record includes the Stromatolites, colonies of prokaryotic bacteria, that range in age going back to about 3 billion years, the Ediacara fossils from South Australia, widely regarded as among the earliest multi-celled organisms, the Cambrian species of the Burgess shale in Canada (circa — 450 million years ago) the giant scorpions of the Silurian Period, the giant, wingless insects of the Devonian period, the insects, amphibians, reptiles, fishes, clams, crustaceans of the Carboniferous Period, the many precursors to the dinosaurs, the 700 odd known species of dinosaurs themselves, the subsequent dominant mammals, including the saber tooth tiger, the mammoths and hairy rhinoceros of North America and Asia, the fossils of early man in Africa and the Neanderthals of Europe.

During the flooding period, the network of irrigation canals and the organic paddy fields close to lagoons become a crucial link between marine and river environments, and provide an important habitat for many species of fish and amphibians, such as damnbusia (Gambusia holbrooki), carp (Cyprinus carpio), fartet (Lebias ibera - an endemic fish of the western Mediterranean Sea), coruna frog (Rana perezi), and others.

In 2000, Chicago Wilderness initiated a calling frog survey as part of its amphibian biodiversity recovery plan.

By monitoring amphibian populations in the Chicago region, we will be able to detect population changes before it is too late as well as assess the effects of management regimes on amphibians.

Both of these groups focus on animals (reptiles, amphibians and birds, respectively) but as our Horticulturist Seth Harper might say, what about plants?

Other wildlife found here include a variety of amphibians, reptiles, and mammals such as painted turtles, Fowler's toads, red fox, river otters, and at least 24 species of dragonflies and damselflies.

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.

Common garter snakes, along with four other snake species, have evolved the ability to eat extremely toxic species such as the rough - skinned newt — amphibians that would kill a human predator — thanks to at least 100 million years of evolution, according to Joel McGlothlin, an assistant professor of biological sciences in the College of Science and a Fralin Life Science Institute affiliate.

Nichols, who contributed to the amphibian research and served as veterinary medical officer at the National Zoo, said, «Without federal funding, we never would have been able to do any of this.»

There is only one group of vertebrate that has the capacity to regenerate highly complex structures such as limbs, jaws, tail, spinal cord, or eyes throughout their lives: the urodele amphibians.

As I spoke to Pfennig and his team of researchers, I learned that the answer was directly linked to the aquatic environments in which the adult amphibians laid their eggs.

Most of Britain's fast - declining populations of reptiles and amphibians, such as the great crested newt, live around small ponds that are unlikely to be listed, let alone protected, with the existing highly bureaucratic system of SSSI designation.

It's hardly unique in that regard: plenty of animals can endure being frozen, including many insects but also a few reptiles and amphibians such as the Siberian salamander.

Amphibians are a group that is highly sensitive to global warming due to the permeability of their skin and their complex lifecycle, which combines an aquatic stage as larvae and a terrestrial stage when young and as adults.

«A particularly exciting result from our research was that amphibian exposure to dead chytrid induced a similar magnitude of acquired resistance as exposure to the live fungus,» McMahon said.

Biodiversity, including small predators such as dragonflies and other aquatic bugs that attack and consume parasites, may improve the health of amphibians, according to a team of researchers.

«Hence, our findings offer hope that amphibians and other wild animals threatened by fungal pathogens — such as bats, bees, and snakes — might be capable of acquiring resistance to fungi and thus might be rescued by management approaches based on herd immunity.»

Worldwide, as water temperatures rise and ponds dry, exposing amphibians and their eggs to ultraviolet radiation and disease, a third of those species are threatened with extinction.

Populations of this unique species, currently known as highly threatened, were previously considered to have remained relatively stable in the face of the disease that has ravaged many amphibian species worldwide, but the frogs may have been infected over a decade ago, with the impacts only recently observed.

Earth's climate was transitioning from greenhouse to icehouse, and the ancestors of modern reptiles and mammals (as well as the precursors of dinosaurs) had begun to emerge from earlier large amphibians.

First identified in 1999, B. dendrobatidis, or Bd, a fungal zoospore, has been named as a leading cause of a global amphibian population decline, including frogs and salmanders.

A new paper published in latest issue of the Journal of Vertebrate Paleontology shows that several of these Jurassic sites are linked together by shared species and can be recognized as representing a single fossil fauna and flora, containing superbly preserved specimens of a diverse group of amphibian, mammal, and reptile species.

The fungus infects more than 600 species of amphibian and has been implicated as the primary cause of decline in more than 200 species.

As such, a cat's ideal diet is made up mainly of protein and fats derived from small prey such as rodents, birds and small reptiles and amphibianAs such, a cat's ideal diet is made up mainly of protein and fats derived from small prey such as rodents, birds and small reptiles and amphibianas rodents, birds and small reptiles and amphibians.

Use of elephant dung as habitat by amphibians,» will be published in Biotropica.

Threats to wildlife survival, such as habitat loss and climate change, tend to strike some species harder than others, and the threat of chytrid, a deadly amphibian fungus, appears to be no different.

Using mist nets to capture birds as well as pitfall traps to capture mammals and amphibians, they painstakingly recorded information on 25,000 individuals, made up of 140 species of birds, 43 species of mammals and 29 species of amphibians.

Modern representatives of this amphibian genus have adapted to the hostile climatic conditions and survive temperatures as low as minus 40 degrees Celsius frozen in the soil.

In their newly published checklist the researchers have listed 49 species of frogs and toads, as well as one caecilian species — a limbless, snake - like amphibian.

It is widely recognised that amphibians are among the most threatened animal groups: for example, in 2008, 32 % of species were listed as «threatened or extinct» and 42 % were listed as in decline.

There are cases of now - extinct birds, as well as the loss and rediscovery of amphibians in Costa Rica.

«While we use amphibians as an example in this article, the negative effects of collecting samples from endangered animal populations is a concern that applies across taxa and around the world.

A hugely diverse range of creatures — including bees, anchovies, birds, reptiles and amphibians — use the patterns as a compass to work out which way is north, south, east and west.

At the stage Haeckel depicted, the fish embryo is about 1 millimeter long, while amphibian embryos at the same stage of development can be as much as 9 millimeters long.

The newly described species (artist's representation shown), which lived between 220 million and 230 million years ago, was one of the largest in a group of amphibians known as metoposaurs and is the first known in this region from well - preserved fossils, the researchers report online today in the Journal of Vertebrate Paleontology.

«Our results suggest that exotic earthworms could be responsible for the high levels of toxic metals in ground foraging animals such as birds, amphibians and even mammals across New England,» says lead author Justin Richardson, who recently received his Ph.D. from Dartmouth's Department of Earth Sciences.

Many of these survivors were early amniotes, such as early reptiles, whose generally larger size relative to early amphibians allowed them to travel longer distances, and their ability to lay eggs meant they were not confined to watery habitats.

As with Newark, they include plenty of amphibians and crocodilian reptiles — even some small dinosaurs called theropods — but not a single prosauropod, say Olsen and Irmis.

This critically endangered frog can be used as a basis for declaring its native laterite habitats as «Conservation Reserves» or «Biological Heritage Areas» under existing legislations in India, allowing us to further our knowledge and understanding of amphibians,» said Mr Seshadri.

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.

Currie refers to velocity and extent as competing explanations, whereas we see them as complementary, based on our expectation that patterns of endemism in amphibians, mammals, and birds would not be entirely attributable to any one explanatory variable (2, 3).