One gene, two important proteins
... the body segments, to disappear and the resulting larvae to become irregular. As predicted, when the researchers overproduced the short STAT92E protein - or when they reduced the amount of the long STAT92E protein - the embryo's body segments disappeared. These experiments, reported in the current Genes a...Fragmentation may be linked to local amphibian extinctions
...in the wild, raised them in tanks, transferred the larvae to artificial pools on the edges between forest and old fields, and then studied their movements during the first two months after metamorphosis. While small-mouthed salamanders showed no preference for forest or old field, the researchers found tha...UCR scientists contribute to study that will help formulate new ways to combat malaria
... gambiae come almost exclusively from humans, its larvae develop in temporary bodies of water produced by human activities (e.g., agricultural irrigation or flooded human or domestic animal footprints), and adults rest primarily in human dwellings. Besides Dr. Atkinson, two other scientists from UC Riversi...Insect infestation models may shed light on insect and disease outbreaks
...on increases to reach pest levels and, because the larvae totally defoliate an area, the outbreak moves on and travels in waves through the Alps moving 125 to 186 miles per year. "We managed to make a theoretical spatial and temporal model of the interaction between the pests, in this case the Larch budmoth...Scientists find insects can alter plant chemistry to help them find mates
... a 30-day period. They spend nine to 10 months as larvae living inconspicuously inside of the plants. Adul...n live plant stems, forming galls that protect the larvae and provide nourishment. In the spring, males emerge first from the rotting stems. Collaborator Wil...Scientists find new way to assess where cotton-killing pests develop
...e developed a new technique to determine where the larvae of certain agricultural pests develop. The study,...looks at the characteristics of the moths that the larvae turn into, shows that a large majority of late-season moths in the Cotton Belt - specifically Helico...Stream erosion may contribute to decline of American eels
...e of the North Atlantic Ocean. After hatching, eel larvae drift for months on ocean currents, finally making their way to coastal areas. Now known as glass eels, they move into freshwater estuaries where they develop into the elvers that migrate up streams and rivers to transform first into yellow eels, the...Arthropods of Tropical Forests
...an insect herbivore in the canopy may develop from larvae living in leaf litter on the forest floor. Whereas authors present data from Australia, Asia and Africa, the bulk of the work is from the New World. A significant fraction of this research was conducted under the auspices of the Smithsonian Instituti...Special section: Invasive species
...despread brown trout eat five times as many mayfly larvae and other stream invertebrates, increasing the algae level six times and decreasing the nutrient levels in the water. Moreover, streams with brown trout often do not have native fish. But there is little support for eradicating the brown trout becaus...Forest fragmentation may increase lyme disease risk
...ticks feed on infected mice, and then the infected larvae molt into nymphs that bite people. Lyme disease is concentrated in areas where lots of people live near forest with blacklegged ticks and their hosts. Lyme disease is rising in the U.S. and is far more common than West Nile virus and other mosquito-...Marine biologists probe 'black box' mysteries of the sea
...whopping differences in the rate at which barnacle larvae are being recruited into the system, depending on ...hey, in fact, release very small eggs or very tiny larvae out into the water that drift in the ocean currents." To find out how far marine larvae drift, Palum...Scientists crack the black box of coastal ecosystems
...ironment. Working on a scale from microscopic fish larvae to the 1200 mile long California Current that swee...als in these hotspot areas produce abundant marine larvae for export and show faster growth rates. They can show distinct genetic signatures that set them apa...New studies reveal connections between oceanographic processes and rockfish populations
...and patterns involved in the dispersal of rockfish larvae and their eventual return as juveniles to their ne...subsides. In addition, McManus has found that fish larvae and other plankton are often concentrated in previously undetected thin layers of ocean water that e...Opening the black box: Scientists gain new tools to learn about the near-shore environment
...eletons which provides a tracking device for where larvae and juveniles drift in the sea. Genetic differenc...Institute at UC Santa Barbara. He said that marine larvae may drift for awhile on a top current and then drop to a lower current going the opposite direction ...New research tools are opening the 'black box' of coastal ecosystems
...rine species now allows researchers to track where larvae and juveniles drift in the sea. Genetic differences among populations provide a general method for indirect monitoring of species dispersal, both inside and outside reserves. Computer-based mapping tools make it possible to place layers of ecosyste...Corals defy species classification
... corals where fertilisation and development of the larvae takes place in water, it was already known that differences between species can be sufficiently small to allow interbreeding to take place with the production of fertile offspring. This research on Madracis has demonstrated that corals which reproduc...Oxygen deficiency is an endocrine disruptor in fish
...overall rates of survival: About 90 percent of the larvae produced by the normal fish survived the experiment, compared to less than five percent of the hypoxic group. This drastic decrease in reproductive output could cause major declines in fish populations around the world, leading eventually to extinct...Could Bt transgenic crops have nutritionally favourable effects on insects?
...rticle in the journal Ecology Letters, that insect larvae can use an engineered toxin (Cry1Ac) as a suppleme...tary food source. They found that toxin-resistant larvae of the Diamondback Moth developed faster and had a greater pupal weight in the presence of the toxin...New species of earliest-known salamanders found in China
...were able to see all the stages of the life cycle, larvae and adults, as well as a range of different kinds of animals, Shubin said. The exquisite condition of the fossils offers clues to evolutionary strategies -- larval details such as gills in adult animals, for example. In the paper, the researchers fea......olyhedrosis virus was originally isolated from its larvae more than 30 years ago. "MTase1 is structurally similar to a protein that poxvirus makes, and also in the poxvirus, it is non essential," Guarino said. "So, we know the virus makes proteins that are not essential when tested in a lab. However, we onl...