Climate change isolates Rocky Mountain butterflies
...s to find out if the habitat allows the species to reproduce and persist," Roland said. "This latest study shows that as populations function with less synchrony and become more independent of each otheras we've shown the Parnassius is becoming in certain areas in the Canadian Rockiesthe local extinction rat...Clones on task serve greater good, evolutionary study shows
...duce as many flowers (and thus were less likely to reproduce successfully), Dworkin said. There definitely are costs to variation. In addition, this study provides preliminary evidence that a well known plant development gene ERECTA may be in part responsible for some of the change in some genotypes. However, ...Features of replication suggest viruses have common themes, vulnerabilities
...the seven distinct classes of known viruses use to reproduce have common attributes. Such a discovery is important because it reveals a common viral theme that may be vulnerable to disruption and could lead to the development of drugs to treat many different kinds of viral infections, much like antibiotics are...Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...aits and the western part of the Gulf of Mexico to reproduce and that the favourite places tend to be where sea surface temperatures are 24 to 27 degrees Celsius and where the slope of the shelf is steep. Even a relatively small change in the distribution of sea surface temperatures in the Gulf of Mexico will...Marijuana component opens the door for virus that causes Kaposi's sarcoma
...archers saw that THC induced the infected cells to reproduce and form colonies in culture. Here we see both infection and malignancy going on in the presence of THC, offering some serious concerns about the safety of THC among those at risk, Dr. Groopman said. Of course, we still do not know the exact molec...Discovery in plant virus may help prevent HIV and similar viruses
...ription to recruit the host's proteins in order to reproduce and spread infection. Transcription in cells is th...o easily integrate into the host's genome and then reproduce in other cells. Chen and his colleagues published a report on their study in the most recent issue......ear or twothey came and they ate, but they did not reproduce locally and eventually died out. Since 2002,however, the authors suggest that Humboldt squid have been both feeding and reproducing off Central California. Although Humboldt squid have historically been found in warm-water areas, they are very adap...CTRC enrolls first patients in novel phase II study for sarcoma -- living virus destroys cancer cell
...n normal, healthy cells, the reovirus is unable to reproduce because of an enzyme named PKR. The enzyme is suppressed in cancer cells, and therefore the reovirus can replicate in the cancer cell and kill it. REOLYSIN typifies the true targeted therapy approach that seeks to use fundamental differences betwe...Weeds survive the wild better than natives
...are involved. "While many plants need insects to reproduce there are many insects that simply feed off plants and this is having an effect on natives," she said, "Some weed species receive all of the benefits of visiting pollinators but none of the negative consequences of herbivores." Ms White said whil...Wood ant queen has no egg-laying monopoly
...over the course of evolution may give up trying to reproduce almost completely. It is obvious that such surrender has not taken place in wood ants, says Heikki Helanter, currently at University of Sheffield, UK, the big questions are then why are the workers so persistently trying, and how does this ongoing co...The mouflons of the Kerguelen archipelago
...ted populations, related individuals are likely to reproduce amongst themselves, resulting in inbreeding and homozygotes. The genetic variety of the population becomes impoverished and its evolutionary potential decreases. Furthermore, consanguinity is known to produce genetic diseases. The most heterozygous i...A faster way to recover from chemotherapy and marrow transplant
... a matched donor to replenish their stem cells and reproduce the full array of blood cell types, including all the cells of the immune system. When theres no suitable donor for a marrow match, patients can receive umbilical cord blood, which also contains blood stem cells. But the number of stem cells in one c...Herpes virus hijacks DNA repair process
...hese mice with murine herpes virus, its ability to reproduce was again curtailed. How DNA damage response benefits viral replication is still a mystery and a topic of continuing investigation in the Virgin lab. "The discovery that induction of the cells' DNA damage response is an intentional viral strategy, r...The insect vector always bites twice
...ate host. The pathogenic agent finds conditions to reproduce and proliferate in the vectors body. In most cases, the parasite moves back into the vectors salivary glands in order to be transmitted to the human host when the insect bites again to take another blood meal. Morbidity among infected people is there...Avian influenza survivors' antibodies effective at neutralising H5N1 strain
...s used a new technique that allows them to rapidly reproduce human monoclonal antibodies starting from a small sample of blood. "We can't say for certain that a pandemic influenza virus will resemble the H5N1 strain that we have been studying or that the monoclonal antibodies generated using our technique wi...Hives ferment a yeasty brew, attract beetle pest
... the beetle larvae to consume all the stored food, reproduce and multiply. "If beekeepers can reverse the trend and eliminate the beetles, the hive can be saved," says Tumlinson. "If they can stop the beetles and remove eggs in the hive, the hive recovers." Honeybees are of major economic importance in agricu...From the deep -- Researchers find new species of sea anemone
...ndreds of years. Nor are they sure how A. pearseae reproduce (each anemone may have male and female sex organs), or if it lives exclusively on whale carcasses. "So far, a single dead whale is the only place where we've found these anemones," Daly said. She and Gusmo plan to include A. pearseae in a long-te...Simple equations track Listeria trails
...n angle relative to the forward motion they could reproduce every track they saw, except those produced by mutant microbes that Theriot introduced. The mutants stood out as different. They produced a skidding kind of pattern instead of the graceful curves that most of the bacteria traced. "The human visual ...Spud origin controversy solved
... before the 1840s because they were better able to reproduce in long-day conditions, in contrast to Andean potatoes that were short-day adapted. The results of these studies are of interest not only to evolutionists but also for breeders. Years of effort were made to artificially recreate the European potato......usceptibility. As temperatures rise, pathogens can reproduce more quickly. The fact that coral diseases seem to spread faster in summer also provides support for the notion that warmer temperatures may be involved. The authors conducted a regional-scale longitudinal study of the hypothesized link between warm ...