Tag: "herbivorous" at biology news

Rise of dinosaurs in Late Triassic more gradual than once thought

... gestalt of a dinosaur, but to find a quadrapedal, herbivorous one was kind of unexpected." Irmis noted that during the Late Triassic, the world's continents were a single supercontinent called Pangea, and the New Mexico site was then near the equator. Argentinian dinosaur precursors, on the other hand, come f...

Elevated CO2 in atmosphere weakens defenses of soybeans to herbivores

...agues conducted tests in which they evaluated this herbivorous attack-defense cycle. They studied soybeans grown in traditional field conditions but with additional exposure to ambient CO2. The results showed that the amount of cysteine proteinase inhibitors (CystPls) expressed in the genes decreased when soyb...

Plant-grazing fish boost resilience of coral reefs facing stress

...conditions: the presence of abundant predatory and herbivorous (plant- and algae-eating) fish, and the absence of...s experienced the depletion of large predatory and herbivorous fish. The researchers found that the two groups of coral underwent very different courses of recover...

Big vegetarian mammals can play a critical role in maintaining healthy ecosystems, study finds

Removing large herbivorous mammals from the African savanna can cause a drama...ces to exclude cattle, elephants, zebras and other herbivorous mammals from experimental plots on a ranch in central Kenya from May 2004 to December 2005. During t...

Why are lions not as big as elephants?

...mall compared with the largest extinct terrestrial herbivorous mammals, such as the Indricothere, which weighed around 15 tons. The largest existing carnivore, the polar bear, is only around half a ton, while the largest known extinct carnivores, such as the short-faced bear, weighed around one ton. The authors ...

Dinosaurs -- stones did not help with digestion

... have good teeth, and food is hard to digest? Some herbivorous birds which have a toothless beak, such as ostriches, solve the problem with what is known as a gastric mill. Their muscular stomach is equipped with a layer of horn and contains stones which help to break up, crush and thereby also to digest food. ...

Batfish to the rescue!

...ustralia's Great Barrier Reef to see whether local herbivorous fish could restore it to a normal state. The ensuing action was captured on underwater TV cameras. When the cage was removed from a particularly weedy patch, local herbivores pecked at it but made little impression on the dense growth of sargassum ...

Fish species plays surprise role in aiding coral reef recovery

...tal videos cameras. Remarkably, only two of the 27 herbivorous fish species present on the reefs had any significant impact on its recovery from algal overgrowth. What was most surprising was that the dominant browser was a rare batfish, a species previously thought to be an invertebrate feeder. Meanwhile, parro...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...n turn, obtain nitrogen by eating plants and other herbivorous animals. That was the dogma taught for decades in biology classes-until September 2005, when David Stahl of the University of Washington showed that bacteria do not have a monopoly on nitrification. In a unique laboratory experiment, Stahl and his ...

Spectacular dinosaur skull comes back to Alberta

...ny better than that." The fossils from this large herbivorous dinosaur were first found by the Sternberg family, who were hired by the Geological Survey of Canada to compete with Americans coming to Alberta to collect fossils. The Sternbergs gathered all kinds of bones, including the skull of Styracosaurus albe...

Coral reef conservation by means of the global network of Marine Protected Areas

...nctional organization, for example the presence of herbivorous fish and their predators. However, these populations are often characterized by migratory movements which expose juveniles and adults alike to the risk of fishing beyond the reserve boundaries. Some fish have territories of several square kilometres....

Insect predation sheds light on food web recovery after the dinosaur extinction

... web. Plants and insects were killed outright, and herbivorous insects took a further hit when the plants they were specialized to eat disappeared. Surviving insects faced the choice of shifting their food resource or dying. Many died, but in most places a few survived, and from these, some evolved to feed on ...

Direct link established between tropical tree and insect diversity

...to date to account for the latitudinal gradient in herbivorous insect biodiversity. The international effort involved a comparison of insects TM eating habits in temperate sites in Central Europe and lowland tropical sites near Mandang, Papau New Guinea (PNG). The team of insect ecologists, taxonomists and f...

Sensational find: The mini-dinosaurs from the Harz Mountains

...ntologist came across teeth and other remains of a herbivorous dinosaur in the Langenberg quarry near Oker on the northern edge of the Harz Mountains in North Germany. The animal was provisionally christened 'Hanna', with Lower Saxony's premier Christian Wulff in attendance as its 'godfather'.'Hanna' is now bein...

Federal testing for mad cow disease a failure, law review editor says

...e practice in 1997 following evidence that feeding herbivorous cows the meat from dead animals can lead to the formation of abnormal proteins, or prions. The prions attack a cow's brain tissue, causing holes to form. As the brain loses function, the cow becomes disoriented and clumsy. Eventually the animal loses...

Global warming may have damaged coral reefs forever

...time goes on. Moreover, the observed decrease in herbivorous fish is a key concern as they control algal spread. Researchers speculate that the reefs' inability to reseed is down to their relative isolation. A lack of nearby reefs to provide larvae which could settle and grow into new coral structures and th...

Ants are surprisingly ancient, arising 140-168 million years ago

...opportunities provided by flowering plants and the herbivorous insects that co-evolved with them. These plants pr...e complex leaf litter on the forest floor, and the herbivorous insects that evolved alongside flowering plants provided food for ants." The Harvard researchers fou...

Ancient ants arose 140-168 million years ago

...opportunities provided by flowering plants and the herbivorous insects that co-evolved with them," said Pierce. The herbivorous insects that evolved alongside flowering plants provided food for the ants. The researchers found th...

Mutation in a single gene switches a fungus-grass symbiosis from mutualistic to antagonistic

...oses include the microbes that live in the guts of herbivorous mammals like cows and help to digest cellulose, ants that protect plants from herbivores, and the fig wasps that pollinate fig trees by depositing their eggs in the fig flowers, which their larvae then feed on. Plants participate in numerous symbiot...

Duck-billed dino crests not linked to sense of smell

...ed animals." Evans studied fossils from a group of herbivorous dinosaurs called lambeosaurs, which are often referred to as crested duck-billed dinosaurs. Lambeosaurs are easily recognizable for their large cranial crests, which contain elongated nasal passages and loop over their skull. Duck-billed dinosaurs ar...

1 2

(Date:7/24/2014)... NEW YORK, NY (July 24, 2014) Scientists ... Research Institute are one step closer to creating ... from a patient,s own cells. , For ... stem (iPS) cells lines from skin samples of ... they developed an accelerated protocol to induce these ...
(Date:7/24/2014)... numbers have decreased by 45% on average over a ... reports a study on the impact of humans on ... enormous benefits invertebrates such as insects, spiders, crustaceans, slugs ... and pest control for crops, decomposition for nutrient cycling, ... in Science and led by UCL, Stanford ...
(Date:7/24/2014)... A new study has identified two factors that ... increase the production of highly qualified physics teachers. ... to champion physics teacher education in combination with ... initiatives remain viable. Science, Technology, Engineering and Math ... and the study points the way for institutions ...
Breaking Biology News(10 mins):NYSCF scientists 1 step closer to cell therapy for multiple sclerosis patients 2Invertebrate numbers nearly halve as human population doubles 2Invertebrate numbers nearly halve as human population doubles 3Creating sustainable STEM teacher preparation programs 2
Other Tags
globecrearrangedbarnaclebattlingnindsdigitthumbsexplodinglensturndeprivedmelatoninfollowschimpillustratesolidifies