Diversity Current Events | Diversity News | 11
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What are 3-D spider webs for?
The classic radial or "orb" spider web captures flying insects efficiently with a small amount of silk but such flat webs leave spiders exposed to their own predators. The derived "araneoid sheet web weavers" transformed the flat orb web into, usually, three-dimensional cobwebs and sheet webs. These webs surround spiders with tangles of silk that... view more... (2003-01-02)
Food for Flight: Monarch Butterfly Migration and Forest Restoration
USDA Forest Service (FS) research in the Ouachita Mountains of Arkansas suggests that decades of fire suppression have reduced the area's food supply for migrating monarch butterflies-and that restoration efforts that include prescribed burning can reverse this trend. view more (2006-11-20)
Coral reef fish harbor an unexpectedly high biodiversity of parasites
IRD researchers showed that Epinephilus maculates, a fairly abundant species of grouper off New Caledonia, was parasitized by 12 species of microscopic monogenean worms. view more (2007-09-06)
RNA splicing occurs in nerve-cell dendrites
Researchers at the University of Pennsylvania School of Medicine have discovered that nerve-cell dendrites have the capacity to splice messenger RNA (pre-mRNA), a process once believed to only take place in the nucleus of cells. view more (2005-11-08)
Mountain caribou's ancient ancestry revealed
The declining mountain caribou populations of Canada's southern Rockies are a more distinct breed than scientists previously believed, according to a new study by University of Calgary researchers that is shedding light on the ancient ancestry of the mountain-dwelling herbivores. view more (2009-01-29)
Biodiversity conservation - no guarantee for shortcuts
New research from scientists at the University of Sheffield published in the November issue of Ecology Letters has cast doubts on the widely held `rule of thumb` that the conservation of a country`s biodiversity can be guaranteed by focusing on protecting its threatened and endemic species. In a report published this week, Aletta Bonn, Ana... view more... (2002-10-30)
Scientists warn that species extinction could reduce productivity of plants on Earth by half
An international team of scientists has published a new analysis showing that as plant species around the world go extinct, natural habitats become less productive and contain fewer total plants -- a situation that could ultimately compromise important benefits that humans get from nature. view more (2007-11-06)
Vine invasion? UWM ecologist looks at coexistence of trees and lianas
Among the hundreds of species of woody vines that University of Wisconsin-Milwaukee ecologist Stefan Schnitzer has encountered in the tropical forests of Panama, the largest has a stalk nearly 20 inches in circumference. view more (2008-08-06)
The spread of our species
In a major new development in human evolutionary studies, researchers from the University of Cambridge argue that the dispersal of modern humans from Africa to South Asia may have occurred as recently as 70,000 years ago. view more (2005-11-07)
Study of islands reveals surprising extinction results
It's no secret that humans are having a huge impact on the life cycles of plants and animals. UC Santa Barbara's Steven D. Gaines and fellow researcher Dov Sax decided to test that theory by studying the world's far-flung islands. view more (2008-08-27)
Yeast missing sex genes undergo unexpected sexual reproduction
An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. view more (2009-05-26)
Diversity of plant-eating fishes may be key to recovery of coral reefs
For endangered coral reefs, not all plant-eating fish are created equal. A report scheduled to be published this week in the early edition of the journal Proceedings of the National Academy of Sciences suggests that maintaining the proper balance of herbivorous fishes may be critical to restoring coral reefs, which are declining dramatically... view more... (2008-10-09)
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)
Old World Origin of New World Dogs
When humans arrived to the New World they had dogs with them. This is the conclusion reached by a study published this week in the journal Science by evolutionary biologists at the University of California, Los Angeles, and Uppsala University, Sweden, in collaboration with zooarchaeologists from Mexico and Peru. Dogs have been present in the New... view more... (2002-11-22)
Living, Meandering River Constructed
In a feat of reverse-engineering, Christian Braudrick of University of California at Berkeley and three coauthors have successfully built and maintained a scale model of a living meandering gravel-bed river in the lab. view more (2009-09-30)
New study explores beetle species with two forms of females
A fascinating new study from the forthcoming issue of The American Naturalist attempts to explain the mysterious persistence of two forms of females in many diving beetle populations. view more (2006-01-25)
Opposites attract -- how genetics influences humans to choose their mates
New light has been thrown on how humans choose their partners, a scientist will tell the annual conference of the European Society of Human Genetics today. view more (2009-05-26)
Wildlife variety is the spice of life, say scientists
Strictly embargoed for release 19:00 BST / 14:00 EST Wednesday 4 July 2001 Biodiversity is more than just a pretty face - it has an important role in the workings of the living world say results published in Nature today by scientists in the UK and France. They find that the specialisation of different plant species to different roles... view more... (2001-07-02)
Beautiful diatoms: pattern for stable construction
AWI publication in 'Nature' Scientists from the Alfred Wegener Institute (AWI) published new results concerning the structure and material properties of diatoms in the science journal "Nature" on 20th february 2003 (Nature 421: 841-843). These single-celled marine algae are responsible for the majority of oxygen and biomass production in the... view more... (2003-02-21)
The conservation lens
The definition of conservation priorities for biodiversity often focuses only on the numbers of vertebrate animals and seed plants in the northern hemisphere or in the tropics. view more (2007-10-25)
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