Research: removal of dominant rivals causes male cichlid fish to undergo remarkable transformation
...me much more aggressive than they were before. The remaining males also quickly paid a lot more attention to females because for the first time, they had an opportunity to reproduce." No one had any idea before that perceived changes in their social status could begin altering animals' behavior and appearance ...Seeing the forest and the trees
...he simulations, they found that the types of trees remaining after each scenario played out had a large and widely varying effect on the amount of carbon a forest would be able to store. "Carbon sequestration is just one of the many services that tropical forests provide," said DeClerck. "The more ecosystem fu...In Western bluebird as well as human families, accumulated wealth encourages stability
...o. "Wealth of resources is not the only feature of remaining with parents that could cause offspring to stay at home," Dickinson said. "The Western bluebird fledglings stay on their parents' territory living in cohesive groups where they sleep together in a cavity or nest box or in the mistletoe, forage togeth...Charting the path of the deadly Ebola virus in central Africa
...lic of Congo--which harbor roughly 80% of the last remaining wild gorilla and chimpanzee populations. In a new ...rategies to protect villagers and some of the last remaining wild apes from future outbreaks would do best to concentrate efforts at the front of the advancing w...Wnt signaling controls the fate of stem cells in adult brains
...vide, they have to choose between several options remaining a stem cell, turning into a nerve cell, also called a neuron, or becoming part of the brain's support network of cells called astrocytes or oligodendrocytes. According to a study published in this week's Nature, the decision to become a neuron is con...Newly recognized gene mutation may reduce seeds, resurrect plants
...er stress, to conserve and divert resources to the remaining seeds. So, in a drought situation, for example, plants will get rid of some seeds so that they can support growth of at least a few healthy seeds." In the November issue of Plant Physiology, Jenks and his team of researchers from the Purdue Departmen...Light-induced hormone surge points to benefits of light therapy
...ht had only been established on melatonin, and the remaining powerful and broad effects of light on body metabolism and hormones remained to be clarified." The researchers examined the activity of the clock gene Per1 in the organs of living animals. The team found that nighttime light exposure induced Per1 exp...ORNL leading effort to help harness power of Shewanella
...Genome Institute, researchers hope to sequence the remaining eight strains by the end of 2006. "Our goals are to gain a better understanding of the Shewanella mechanisms for metal contaminants reduction and other bioremediation applications, and develop a system that makes the information readily available to ......e surfaces, and zooming in on small regions of the remaining molecules that might hold motifs. Then it was up to the computer to scan the sequences for small patterns. The attempt was successful: in the fly data, for example, 26 sets of proteins seemed to be interacting through linear motifs. "One challenge wa......r. Furthermore, as more motors unbind, each of the remaining pulling motors has to sustain a larger force, which would mean that their unbinding probability increases even further. This leads to a cascade of unbinding processes and to a strongly nonlinear dependence of the cargo velocity on the external load f...New understanding of regeneration gained by Forsyth scientists
...n of position relative to - and the identity of - remaining tissue. Michael Levin, PhD., Associate Member of the Staff, said, "This research has important implications for understanding the signaling necessary to build (or re-build) complex structures. By understanding how cells communicate through gap junc...New results show the RTS,S malaria vaccine candidate protects children for at least 18 months
...cent. "These results answer an essential question remaining from the release of the six-month efficacy data a year ago," said Pedro Alonso, M.D., Ph.D., lead author of the Lancet article, scientific director of CISM, and head of the Center for International Health at the Hospital Clnic of the University of Ba...Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer
...curring circulating tumor cells or micrometastases remaining from the originally treated tumor," explains co-author Eric Wickstrom, Ph.D., of Jefferson Medical College of Thomas Jefferson University in Philadelphia. "This could be cost-effective and could diagnose whether cells are cancerous or not in a matte...Sonography valuable in determining surgery in peroneal nerve injuries in the knee
...ons, utilizing sonographic assessment, of the five remaining conservatively treated patients showed restitution of normal peroneal nerve morphology after six months. The results of the study concluded that sonography allows major or minor injuries to be detected and the level and extent of the nerve lesion, i...Removing egg from nest may help save endangered whooping crane
...ecember issue of Biological Conservation. The last remaining whooping crane population nests in Wood Buffalo National Park and winters at the Aransas National Wildlife Refuge in Texas. At one point the bird's numbers reached a low of 16 in 1942 but the population has since increased to more than 200 birds. No...Gold mining firm gives $1 million to natural reserve
...00 acres of the property. In subsequent years, the remaining 6,600-plus acres were added to the reserve. The McLaughlin Reserve is remarkable among environmental field stations in North America for its size, geological and ecological richness, and its location within a large wild landscape. Plus, its proximity...New study pinpoints epicenters of Earth's imminent extinctions
... in need of urgent conservation action at a single remaining site on Earth. The study found that just one-third of the sites are known to have legal protection, and most are surrounded by human population densities that are approximately three times the global average. Conserving these 595 sites should be an u...Genetic analysis of Asian elephants in India reveals some surprises
...bia University have discovered that one of the few remaining populations of Asian elephants in India is actually two genetically distinct groups. The results of the study, which appear in the current issue of the journal Animal Conservation, could have far-reaching implications in conservation plans for the en...Sahara's edge studied from ground, air and space to improve water management
...groundwater, plus loss of artesian pressure to put remaining supplies out of reach or induce contamination from nearby saline water deposits. Working with partners including African water agencies, ESA has commenced a project called Aquifer to develop satellite-derived products and services to support the sus...... of the bone DNA was indeed mammoth DNA, while the remaining genetic material was shown to belong to microorganisms living the tundra soil. The study indicates that any organism that has been trapped in frozen ice or a permafrost environment for up to one million years will be an open book to the researchers. ...