Sentences with phrase «large vertebrates»

Overexploitation threatens the future of many large vertebrates.

«The new environment attracted a rich fauna of large vertebrates including wild horse and red deer, two of the preferred prey species.

Most present - day salamanders feed on invertebrates, with their mouths too small to consume large vertebrates, says herpetologist Sara Viernum.

Needing backup blood is no slur on this vampire's superb adaptations to feeding on large vertebrates.

Several large vertebrates are threatened by hunting, illegal trade and habitat loss.

Using a combination of satellite and ground data, the team can map multiple indicators of monkey distribution, including human activity zones as inferred from roads and settlements, direct detections from mosquito - derived iDNA, animal sound recordings, plus detections of other species that are usually found when monkeys are present, such as other large vertebrates.

Like many large vertebrates, orangutans play a particularly critical role in maintaining healthy ecosystem function.

Planetary cues, such as magnetic inclination and moon phase, guide northern elephant seals and other large vertebrates over long distances and across time.

«I expect this to be common because the human predator preys on just about every medium - to - large vertebrate on the planet,» he says.

But as my A.S.U. colleague Kim Hill has put it, Even before the invention of agriculture, human communities may have eventually numbered around 70 million individuals... as Homo sapiens spread over the planet more broadly than any other large vertebrate.

Of the ray - finned fish, the so - called Neopterygii («new fins») became particular biodiverse during the Triassic and, with over 30,000 species, today constitute the largest vertebrate group.

When humans began settling on the island about 2,300 years ago, Madagascar's large vertebrate populations were the first casualties.

But our research shows that a decline in large vertebrate populations and the loss of key ecological interactions also poses a serious risk for the maintenance of tropical forest carbon storage.

Leslie found the first cases of wider seed cones in the Jurassic period, a time when very large vertebrate herbivores, such as the long - necked sauropods Diplodocus and Barapasaurus, roamed Earth.

While large vertebrate mammals, like deer or bear, might be able to make that overland journey to keep up with northward - shifting temperatures, smaller animals and plants just don't move that fast, Anderson said.

While stinging is a great way to defend against larger vertebrate predators, the main threats to stingless bees are ants and other bees.

Similarly to other species within its genus, which is among the largest vertebrate genera, the new rain frog exhibits direct development.

Work with these creatures, as well as with mice, has decreased the need to do basic research in larger vertebrates and primates, explains Steve Niemi, who directs the Center for Comparative Medicine as the chief veterinarian at the Massachusetts General Hospital.

Not exact matches

Geographically, large numbers of vertebrate pollinators are at risk in Australia, Colombia, Ecuador, Indonesia, Madagascar, Mexico, Papua New Guinea, Peru, and the United States.

One previous study of a single footprint of a large tyrannosaur suggests that the beast could have been traveling as fast as 11 kilometers per hour (6.8 miles per hour), says Eric Snively, a vertebrate paleontologist at the University of Wisconsin, La Crosse.

About 96 % of the world's vertebrate species disappeared, making it one of Earth's five largest die - offs.

«These results change our understanding of when the largest living group of vertebrates evolved and allow us to iron out a lot of the wrinkles in our understanding of the sequence of evolutionary events.»

The researchers identified more than 1000 olfactory receptors in the soft - shell turtle, which is one of the largest numbers ever to be found in a non-mammalian vertebrate.

«Wolves rely on large prey to survive,» said Benson, assistant professor of vertebrate ecology who conducted the research as a doctoral student at Trent University.

Applying modern experimental technology to these organisms that, despite their simplicity, still share a large molecular similarity with the nervous systems of vertebrates, enabled identification of ancient and therefore fundamental principles of nervous system structure and function.

If the denticles of some very early vertebrate had migrated into the jaw, grown larger and gained new functions, the speculation went, they could have given rise to modern choppers.

«Vertebrate genomes are typically on the larger side, so it takes a lot of computational power to assemble them,» says Card.

That oddly textured pebble, scientists report at the Society for Vertebrate Paleontology meeting, is actually an endocast — an impression preserved in the rock — that represents the first known evidence of fossilized brain tissue of a dinosaur (likely a close relative of Iguanodon, a large, herbivorous type of dinosaur that lived about 133 million years ago).

«We analyzed, for the first time at such a large scale, global patterns of island vertebrate extinctions in relation to different types of invasive mammals and physical island conditions,» McCreless said.

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.

«By narrowing down how many species exist within the largest group — the insects and other arthropods — we are now in a position to try to improve estimates for all species, including plants, fungi and vertebrates.

Dr. Xiaoming Wang, Curator and Head of Vertebrate Palaeontology at the Natural History Museum of Los Angeles County and Dr. Denise Su, Curator & Head of Paleobotany and Paleoecology at the Cleveland Museum of Natural History have published a paper with colleagues in the Journal of Systematic Paleontology on the discovery of one of the largest otter species ever found.

The female stout infantfish is the largest example of the world's tiniest vertebrate — but not by much.

Similar to ongoing extinctions, the end - Devonian extinction resulted in the loss of most large - bodied vertebrates.

First, the team isolated ORCs from newts, whose ORCs are the largest among vertebrates and about three times as large as those of humans.

In the paper, scientists reported that salamanders represent one of the largest sources of biomass, or food, of all vertebrates in the forest landscape.

Not only is this the sole lungless caecilian, it's by far the largest lungless, four - limbed vertebrate known.

Scientists suspect the new group will be the largest group of vertebrates to ever receive a new scientific name.

Did you know, for example, that the vaccinia virus is a member of one of the largest and most complex of the vertebrate viruses?

The researchers said the discovery means modern vertebrates originated in a world that was already populated by small and large - bodied physical extremes, in terms of how animals physically adapted to their environment.

It was the advent of both jaws and teeth that allowed vertebrates to begin processing larger and more complex prey.»

Plesiosaurs possess an unusual body shape not seen in other marine vertebrates with four large flippers, a stiff trunk, and a highly varying neck length.

Researchers carry out innovative basic and applied research programs in coral reef biology, ecology, and geology; fish biology, ecology, and conservation; shark and billfish ecology; fisheries science; deep - sea organismal biology and ecology; invertebrate and vertebrate genomics, genetics, molecular ecology, and evolution; microbiology; biodiversity; observation and modeling of large - scale ocean circulation, coastal dynamics, and ocean atmosphere coupling; benthic habitat mapping; biodiversity; histology; and calcification.

«Among the three living lineages of vertebrates [cyclostomes, cartilaginous fishes and bony vertebrates], bony vertebrates are the largest and most diverse group of vertebrates,» the authors wrote.

'' (Lythronax's) forward - facing eyes, powerful limbs and large size would have made it an efficient hunter of both duckbilled dinosaurs and horned dinosaurs like Diabloceratops,» added co-author Joseph Sertich, curator of Vertebrate Paleontology at the Denver Museum of Nature and Science.

Sequencing the zebrafish genome provided evidence of more than 26,000 protein - coding genes, the largest set of any vertebrate sequenced so far.

Rapid developments in synchrotron tomography foresee the visualisation of even larger objects at higher resolutions in the future and will continue to expand the role of computed tomography in vertebrate palaeontology.

Papillomaviridae form a large family of viruses that are known to infect a variety of vertebrates, including mammals, reptiles, birds and fish.

Shaun heads a large Neuroecology Group that investigates the neural basis of behaviour in both invertebrates and vertebrates, with special emphasis on sensory systems and vision.

This fieldwork has yielded a large sample of Eocene vertebrates that are currently under study, including a least 3 species of fossil primates that are unique to West Texas.