Species Diversity Current Events | Species Diversity News | 10
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Cracking the egg
Sexual reproduction is not necessarily sexy (especially when scientists start analyzing it), but it is fascinating. As we all know, the basics entail bringing together an egg and a sperm, a whole lot of cell division and growth, and sooner or later a young organism that carries a mix of genes from both parents. view more (2006-10-04)
First global bird map provides new clues to future extinctions
The first global survey of bird diversity could play a key role in identifying species most vulnerable to extinction, researchers report today in the journal PLoS Biology. view more (2006-06-20)
East African cichlid fish offer new understanding of genetic basis of sex determination
Biologists have genetically mapped the sex chromosomes of several species of cichlid fish from Lake Malawi, East Africa, and identified a mechanism by which new sex chromosomes may evolve. view more (2009-10-02)
There's no scent like home
Tiny larval fish living among Australia's Great Barrier Reef spend the early days of their lives swept up in ocean currents that disperse them far from their places of birth. view more (2007-01-09)
Smithsonian guide to the biodiverse marine environment of Panama's Bocas del Toro
Coral reefs, coastal rainforest, land-grab, industrial bananas and organic cacao, mangroves, tourist boom, eclectic cultural mix: A Caribbean Journal of Science special issue presents the first scientific overview of the marine environment in Bocas del Toro Province near Panama's border with Costa Rica. view more (2005-12-29)
Current mass extinction spurs major study of which plants to save
The Earth is in the midst of the sixth mass extinction of both plants and animals, with nearly 50 percent of all species disappearing, scientists say. view more (2008-10-21)
New research proves single origin of humans in Africa
New research published in the journal Nature (19 July) has proved the single origin of humans theory by combining studies of global genetic variations in humans with skull measurements across the world. view more (2007-07-19)
Animals that seem identical may be completely different species
Animals that seem identical may belong to completely different species. This is the conclusion of researchers at the University of Gothenburg, Sweden, who have used DNA analyses to discover that one of our most common segmented worms is actually two types of worm. The result is one of many suggesting that the variety of species on the earth could... view more... (2009-04-23)
Hundreds of New Species Discovered in Fragile Eastern Himalayas
Over 350 new species including the world's smallest deer, a "flying frog" and a 100 million-year old gecko have been discovered in the Eastern Himalayas, a biological treasure trove now threatened by climate change. view more (2009-08-11)
Ferns took to the trees and thrived
As flowering plants like giant trees quickly rose to dominate plant communities during the Cretaceous period, the ferns that had preceded them hardly saw it as a disappointment. view more (2009-07-06)
Dairy Farming, Cattle Milk Genes And Gene-Culture Co-Evolution
Cattle milk genes, the genetic capacity of humans to digest milk and the habit of using dairy products have evolved together in a unique process called gene-culture co-evolution says a team of researchers in the last issue of the journal Nature Genetics. Genes are for most species the only way to transfer information across generations but in some... view more... (2003-12-18)
Sharks in danger
There are 370 species of shark, each with their own particular habitats and behaviours. Most sharks are slow to reproduce and do not have large numbers of young. They are therefore particularly sensitive to predation or large losses. Caught as accidental by-catch (estimated at 3000 per day), sharks are also fished for their fins (for food),... view more... (2002-06-07)
Expedition discovers marine treasures
An underwater mountain that forms the world's third-largest atoll has some of the richest diversity of marine life ever found in the Caribbean, according to scientists who recently explored the area. view more (2006-02-14)
Museum specimens aid conservation effort in Madagascar
There is a new tool for those developing conservation strategies for threatened species and landscapes: museum specimens. Richard Pearson and Christopher Raxworthy of the American Museum of Natural History dusted off a number of collections from Madagascar and used the location information associated with each species to test different ideas... view more... (2009-04-17)
Manipulating biotope space can enhance beneficial biodiversity effects
Using diverse plant mixtures instead of monocultures can increase yield and other ecosystem goods and services on which humans depend. Recent studies showed that such beneficial effects of biodiversity depend on complementarity between species in resource use, as is the case if species root in different soil depths. This knowledge led to the... view more... (2004-06-10)
The Peopling of the Americas: Genetic ancestry influences health
At one time or another most of us wonder where we came from, where our parents or grandparents and their parents came from. view more (2009-08-17)
Common garden plant threatened by climate change
Cyclamen, a common, pretty garden flower, is at risk of extinction because of climate change. In a study published today in the open access journal BMC Evolutionary Biology (http://www.biomedcentral.com/bmcevolbiol/), researchers show, using mathematical modelling, that the ideal climate for Cyclamen will become increasingly rare and might have... view more... (2006-09-20)
Shifts in soil bacterial populations linked to wetland restoration success
A new study led by Duke University researchers finds that restoring degraded wetlands -- especially those that had been converted into farm fields -- actually decreases their soil bacterial diversity. view more (2008-11-13)
The First Domesticated Donkey Was Born in Africa
An international team of researchers, with the participation of Universitat Autònoma de Barcelona professor, Jordi Jordana, has published in Science magazine the results of their investigation into the origins of the domesticated donkey. The authors have discovered by using genetic analysis that the domesticated donkey originated in... view more... (2004-06-23)
The first DNA barcodes of commonly traded bushmeat are published
Leather handbags and chunks of red meat: when wildlife specialists find these items in shipping containers, luggage, or local markets, they can now use newly published genetic sequences known as "DNA barcodes" to pinpoint the species of origin. view more (2009-09-08)
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