News tips from the Journal of Neuroscience
...ugh implanted catheters. Then they were exposed to extinction procedures (saline replaced cocaine, and cocaine-associated cues were removed) until lever pressing abated. Reinstatement of drug seeking was triggered by a priming injection of cocaine. AM251 inhibited this reinstatement, but not sucrose-mediated re...Agriculture and tropical conservation: rethinking old ideas
...perate this way, with a continual process of local extinction and re-migration. When you couple that ecological ...on't travel through them to repopulate areas where extinction has occurred. But that's not the case if the intervening areas are traditional "agroforests"---farms...Wildlife Conservation Society joins Climate, Community & Biodiversity Alliance
... world is facing two simultaneous crises--the mass extinction of species globally, and the unprecedented pace of climate change due to the buildup of greenhouse gases in the atmosphere," said Dr. John G. Robinson, Executive Vice President of WCS. "With over 500 projects in more than 60 countries around the worl...Trees appear to respond slower to climate change than previously thought
...resilience might reduce the probability of species extinction and allow time for efforts at biodiversity conservation. Or maybe not. "Our study looked at the past, before humans had made any significant impact on climate," said Hu. "In the future, both human and natural disturbances will likely interact with...... According to the researchers, "The ecological extinction of green turtles transformed an ecosystem with diverse species of seagrass dominated by large herbivores into a detritus-based ecosystem dominated by overgrown monocultures of one species of grass." Green turtles feed mostly on turtle grass, while ...Scientists map the flight of the bumblebee
...ds on - some long-tongued bumblebees are close to extinction in the UK (Bombus terrestris, the focus of this study, is short-tongued). Bumblebees leave chemical 'post-it' notes on flowers they have just visited to tell others they have taken all the nectar ...New tiger report release: Tiger habitat down from just a decade ago
...e populations like tigers are highly vulnerable to extinction in small and isolated reserves. Half the 76 landscapes can still support 100 tigers or more, providing excellent opportunities for recovery of wild tiger populations. The largest tiger landscapes exist in the Russian Far East and India. Southeast A...Titans of biodiversity science call for united, authoritative voice to inform decision-makers
...ns and 52% of cycads are currently threatened with extinction (2), and climate change alone might commit an additional 15 to 37% of extant species to premature extinction within the next 50 years (3). Since biodiversity loss is essentially irreversible, it poses serious ...UCR researchers determine genetic origin of California wild radish
...hts their research. "The documented instances of extinction by hybridization in which both parents are replace... and Plant Sciences. "What we've shown is that the extinction of a species by this process can occur very rapidly. We need to recognize the lesson this teaches us...11th International Deep-Sea Biology Symposium
...on biology to explore the impact of whaling on the extinction of deep-sea animals that live on whale carcasses. Their results suggest that species extinctions may have already occurred in the North Atlantic where great whales were decimated in the 1800s. Extinction may also be ongoing in the Southern Ocean, w...Birds going extinct faster due to human activities
...nct over the past five centuries, and 21st-century extinction rates likely will accelerate to approximately 10 a...rt. Without the influence of humans, the expected extinction rate for birds would be roughly one species per century, according to Stuart Pimm, professor of cons...First global bird map provides new clues to future extinctions
...that a species inhabits and regional variations in extinction risk and biodiversity. The international team hope...exist. This in turn has important implications for extinction risks. The team has shown that species with a smaller range size are at a greater risk of extinction...Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs
...and the world a unique jewel that will prevent the extinction of threatened species of birds and frogs found now...roAves president and an active herpetologist. "The extinction crisis is wiping out so many important environmental indicator species, such as Atelopus frogs, befo...Colombian frog believed extinct found alive
...s that feed on mosquitoes carrying the disease. An extinction crisis among amphibians indicates drastic environmental changes caused by human impact such as deforestation and global warming....Ready, set, mutate and may the best microbe win
...of the fermentor. Three of the five were driven to extinction within a couple of days, and the final two fought it out over the remaining three weeks of the test. The research included a raft of additional experiments as well. The team characterized each of the mutant proteins to document precisely how it aided...UNH researcher restoring oyster reefs to Great Bay
...from exuberant overharvesting. "We have seen local extinction on some reefs," says Ray Grizzle, research associate professor at the University of New Hampshire's Jackson Estuarine Laboratory. Now Grizzle is working to bring oysters back to Great Bay lots of them. He's helping the state of New Hampshire meet i...Man may have caused pre-historic extinctions
...istoric horses in Alaska may have been hunted into extinction by man, rather than by climate change as previousl...hat the wild horses became extinct long before the extinction of mammoths and the arrival of humans from Asia - ruling out the possibility that they were over-hun...Ancient DNA provides clues to the evolution of social behavior
... she says. ''They're the survivors of the last big extinction event, so it seems logical to me that we should know how they did that.''...Lunar rocks suggest meteorite shower
...teorites impacts may have been responsible for the extinction of dinosaurs 65 million years ago, and a mass extinction that wiped out an estimated 75 percent of the Earth's plant and animal species 250 million years ago......cies of sturgeon have been brought to the brink of extinction by a number of human-related factors, particularly the beluga sturgeon of the Caspian and Black Seas, which is the source of the world's finest and most sought-after roe, known as caviar. Imports of beluga caviar are now banned by the United States F...