Alien Species Current Events | Alien Species News | 11
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Researcher turns brown algae phylogeny upside down
According to fellow phycologists, algae expert Stefan Draisma from the Leiden University has turned brown algae phylogeny completely upside down. His research shows that few of the currently assumed relationships between the orders are correct. Furthermore, it transpires that some simple species arose not earlier but later than more complex... view more... (2002-06-24)
Noospheric Reality
A specialist of the Vavilov Institute of Natural History and Engineering, Russian Academy of Sciences, A.G. Nazarov has considered Vernadsky's famous concept on biosphere transmutation into noosphere ("sphere of human thought") from the ecological point of view and has come to the conclusion that noospheric reconstruction of biosphere has no... view more... (2005-04-05)
Ecosystems with many plant species produce more and survive threats better
Ecosystems containing many different plant species are not only more productive, they are better able to withstand and recover from climate extremes, pests and disease over long periods, according to a new study. view more (2006-06-01)
New species of diatom discovered
In the latest issue of Diatom Research, the scientists describe a new species of diatom, Hannaea superiorensis, found primarily in Lake Superior view more (2005-12-05)
A bug's life... in a bubble
Hundreds of insect species live mainly underwater, but how do they breathe? University of Alberta researcher Morris Flynn did a study to find out how these species are able to remain underwater without drowning. view more (2008-08-11)
Biologist discovers pink-winged moth in Chiracahua Mountains
University of Arizona biologist Bruce Walsh has identified a new species of moth in southern Arizona. Normally, this is not a big deal. view more (2009-06-10)
An unexpected outcome of atmospheric CO2 enrichment
Unseen belowground interactions impact the composition of natural plant communities. Mycorrhizae, symbiotic associations between soil fungi and plant roots, help plants acquire soil nutrients but also drain substantial carbon from plants. Whether mycorrhizae help or hinder plant growth depends upon the balance between nutrient benefits and carbon... view more... (2003-05-22)
Northwestern biologists demote Southeast Asia's 'forest ox'
It was one of the most famous discoveries of the 20th century. Shrouded in mystery since its recognition as a new species in 1937, the kouprey - an ox with dramatic, curving horns - has been an icon of Southeast Asian conservation. Feared extinct, it's been the object of perilous expeditions to the region's jungles by adventurers, scientists and... view more... (2006-09-18)
British butterfly reveals role of habitat for species responding to climate change
Most wild species are expected to colonise northwards as the climate warms, but how are they going to get there when so many landscapes are covered in wheat fields and other crops? view more (2009-02-25)
Insect population growth likely accelerated by warmer climate
Insects have proven to be highly adaptable organisms, able through evolution to cope with a variety of environmental changes, including relatively recent changes in the world's climate. But like something out of a scary Halloween tale, new University of Washington research suggests insects' ability to adapt to warmer temperatures carries an... view more... (2006-10-31)
Polar pecking order and biodiversity
New research into how biodiversity is generated and maintained in the seas surrounding hostile Polar Regions is reported in this month`s Proceedings of the Royal Society (Biological Sciences). British Antarctic Survey biologist David Barnes studied `battles` between rock-dwelling marine organisms in shallow seas from the Poles to tropics to come... view more... (2002-10-07)
Why are some groups of animals so diverse?
A new study of finger-sized Australian lizards sheds light on one of the most striking yet largely unexplained patterns in nature: why is it that some groups of animals have evolved into hundreds, even thousands of species, while other groups include only a few? view more (2007-09-20)
National assessment done on potential invasive snail and slug pests in US
A collaborative team led by a University of Hawai'i at Manoa researcher has published the first-ever assessment of snail and slug species that are of potential threat to the nation's agriculture industry and the environment, should they ever be introduced in the U.S. view more (2009-07-31)
Museum-fueled global study shows you can't judge biodiversity by its bird
The canary in the coal mine, the supposed harbinger of threat for all those around it, isn't as true as it seemed for biodiversity conservation, according to a sweeping study in which a Michigan State University ornithologist participated. view more (2006-11-02)
Biologists Produce Global Map of Plant Biodiversity
Biologists at the University of California, San Diego and the University of Bonn in Germany have produced a global map of estimated plant species richness. Covering several hundred thousand species, the scientists say their global map is the most extensive map of the distribution of biodiversity on Earth to date. view more (2007-03-21)
Owls' dawn and dusk concerts promote visual communication
Reporting in the online, open-access journal PLoS ONE April 8, Vincenzo Penteriani and Maria Delgado of the Estacion Biologica de Doñana, Spain, describe the evolution of white throat badges in association with dawn and dusk vocal signals in certain species of nocturnal bird, which maximise the potential for these species to communicate... view more... (2009-04-08)
New study focuses on radiation-associated cancer risks
Concerns about the risk of radiation-induced cancer are growing with the increasing number of cancer patients surviving long term. view more (2007-01-12)
Climate change may wake up 'sleeper' weeds
Climate change will cause some of Australia's potential weeds to move south by up to 1000km, according to a report by scientists at CSIRO's Climate Adaptation Flagship. view more (2009-04-15)
New paper offers key insights into how new species emerge
This year marks both the bicentennial of Charles Darwin's birth and the 150th anniversary of the publication of his seminal work "On the Origin of Species." view more (2009-02-06)
Genetic differences between yeasts greater than those between humans and chimpanzees
The mapping of the entire yeast genome in 1996 marked the beginning of a revolution in biological and medical research. The human genome was mapped in 2001, and by now the number of characterised species is approaching 1000, most of which are bacteria. view more (2009-02-13)
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