Modeling alien invasions: Plasticity may hold the key to prevention
...ed the inflexible invader, and the plastic invader displaced the inflexible resident. But to the authors' surprise, invasion was rapid when both consumers were nonplastic--yet did not occur when both consumers were plastic; plasticity effectively acted as a barrier to invasion unless invaders were given a huge...Dramatic shift from simple to complex marine ecosystems occurred 250M years ago at mass extinction
...cologically simple marine communities were largely displaced by complex communities. Furthermore, this apparently abrupt shift set a new pattern that has continued ever since. It reflects the current dominance of higher-metabolism, mobile organisms (such as snails, clams and crabs) that actually go out and f...Irish potato famine disease came from South America
...ns caused the Irish potato famine, which killed or displaced millions of Irish people, and other late-blight epidemics across the world. It continues to plague modern potato and tomato plants. Researchers from around the globe have joined forces to understand the pathogen and learn what makes the plant dest...Disease opened door to invading species in California
... they appeared to be inferior competitors, rapidly displaced native perennial grasses in California and also parts of the Pacific Northwest. "The complete change in grassland ecosystems brought with it more damaging fire regimes, shorter grazing seasons, and altered water and carbon cycles" said Eric Seabloo...Biofuels: More than just ethanol
... crops is the largest greenhouse gas source, while displaced fossil is the largest greenhouse gas sink followed by soil carbon sequestration. This research shows that farmers will have a variety of biofuel crop options available in the future and that these biofuel crop rotations will have different enviro...DNA repair proteins monitored at double-strand break
...place. The researchers suggested that ATM had been displaced or moved so that the repair proteins could gain access to the damaged DNA site. The findings also suggested that before ATM can move to the double-strand break, it must first become activated so it can trigger a critical series of signals linked t...Scientists concerned about effects of global warming on infectious diseases
...upplies, re-suspended pathogens from sediments and displaced large populations to temporary shelters. We are at greater risk than ever before of infectious disease associated with increasing extreme weather events," says Rose. There will also be indirect effects of climate change on infectious disease as w...A living memory chip, black holes on the loose, and a clearer picture of ocean currents
...as much energy as the Milky Way. A quasar that is displaced from galactic core may well be a kicked black hole. Unfortunately, it would require a real stroke of luck to catch one in action - the gas fueling the light would only last about ten million years, so an ejected black hole would be dark by the time i...Satellite images show destroyed and threatened villages in Darfur
...so show the appearance of makeshift settlements of displaced persons in close proximity to the small contingent...f the archival images starkly show the movement of displaced persons in the area. While many have fled to refugee camps in eastern Chad, makeshift settlements al...Massive herds of animals found to still exist in Southern Sudan
... on the land. Thousands of refugees and internally displaced people are on the move back into this area, which ...f our peace dividend with the return of internally displaced peoples and refugees, and the recovery of our wildlife populations. The government of Southern Sudan...First all-African produced genetically engineered maize is resistant to maize streak virus
... was carried to Africa in the 1500s and eventually displaced native food crops such as sorghum and millet. Maize streak virus, an endemic pathogen of native African grasses, was then carried to maize plants by viruliferous leafhoppers. African scientists have been working for more than a quarter century on ...