Tag: "diversity" at biology news

Bigger horns equal better genes

...t research studies have shown that greater genetic diversity correlates with a greater chance of survival. "The size of the horns reliably advertises the genetic quality of the ibex—and the bigger, the better," said Dr. David Coltman, an evolutionary geneticist at the University of Alberta and co-author of...

Could fungal collection hold the key to new life-saving drugs?

...amples. We hope that this novel source of chemical diversity will contain new compounds that can be used to point the way to new drugs for serious diseases.” CABI currently uses its fungal collection, along with the expertise of its scientists to offer a range of services to businesses, including fungal ide...

The mouflons of the Kerguelen archipelago

...researchers demonstrated that the animals’ genetic diversity increased over time, contrary to what the usual mo...issue to reconstitute the evolution of the genetic diversity of the mouflon population from 1958 to 2003. Through the contribution of Jean-Louis Chapuis, Denis R...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...vity. These "picophytoplankton" also exhibit great diversity that contrasts sharply with the dearth of ecologic...the mechanisms of species adaptation and the great diversity of biological pathways operating in the oceans," said Grigoriev. "This will also enable us to predi...

Novel system developed to turn data into real-time, interactive 3-D images

...sity," Wilson says. "The agreement illustrates the diversity of research activity and commercial potential within the Kent State University system." Standing Rock Imaging, LLC, has committed to maintaining a presence in Northeast Ohio, and hopes to employ residents of the region in the further development a...

Scientists seek useful traits in wild cottons

...for much the same reason. "Cotton genetic diversity has narrowed in recent years," said Dr. John Ganna...enetically to handle minor changes but lack enough diversity for really spectacular change. Aside from limiting fiber quality and yield potential, narrow genetic...

Scientists discover new life in the Antarctic deep sea

...ch results challenge suggestions that the deep sea diversity in the Southern Ocean is poor. We now have a better understanding in the evolution of the marine species and how they can adapt to changes in climate and environments." Dr Katrin Linse, marine biologist from British Antarctic Survey, says, "W...

MIT's ocean model captures diversity of underwater forests

...odel of the ocean is the first to reflect the vast diversity of the invisible forests living in our oceans-tiny...t because previous ocean models did not convey the diversity of phytoplankton, they did not well represent the systems they modeled. The new model remedies that....

Male owls pitch their hoots to advertise body weight to competitors

...coustic components of the calls rather than in the diversity of the vocal repertoire as it is in songbirds," says Reby, who is an expert in the study of mammal vocal communication. ...

Mine runoff continues to provide clues to microbial diversification

...ch will lead to a greater understanding of genetic diversity in related organisms and should lead to developments in human health and bioremediation.? The combination of mass spectrometry support from ORNL researchers with extensive reconstruction of genomes from community genomic data at UC Berkeley was key...

Researchers identify gene involved in dog size

... and behaviors. In fact, dogs exhibit the greatest diversity in body size of any mammalian species. In their study, researchers explored the genetic basis for size variation among dogs by comparing the DNA of various small dog breeds, including Chihuahuas, Toy Fox Terriers and Pomeranians, to an array of la...

Researchers learn what sparks plant growth

... they work together to give rise to the tremendous diversity of shape and form found in the flowering plants," said Chory. For the moment, the research is an important addition to the fundamental knowledge of plant growth and survival. But the research and the work to follow have much broader implications. ...

Female Antarctic seals give cold shoulder to local males

...l up to 35 metres to find a mate with high genetic diversity and to avoid inbreeding (while the males will rema...iours that we observe will impact upon the genetic diversity of fur seal populations and may have helped them recover so successfully from near extinction only 1...

Remote sheep population resists genetic drift

...nd from a Parisian zoo, has maintained the genetic diversity of its founding parents. This finding challenges t... theory of genetic drift, which states the genetic diversity of an inbred population will decrease over time. "What is amazing is that models of genetic drift...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

... the research. "Taxonomists have been studying the diversity of life on Earth for hundreds of years. In this case, the discovery of previously unknown species diversity has very significant legal and commercial implications." Since the time of Hippocrates and long b...

Iowa State University botanists identify new species of North American bamboo

...ogy, and Ph.D. student Jimmy Triplett study bamboo diversity and evolution. They first heard about "hill cane" ... in East Asia. "That's a well-known pattern of diversity in plants and animals. Plants known to be closely related that were previously found across a large ...

ESA launches new project to protect biodiversity

...roving the quality of life, keeping the tremendous diversity of the region protected and making sustainable use of our marine resources, for our future generations," MarViva's Michael Rothschild said. Because the development of these products requires different expertise, a consortium of four organisations ...

Darwin's famous finches and Venter's marine microbes

...OS opens a huge window into biological and genomic diversity and, within this diversity, to better understand m...seases. We go out into the ocean, we find all this diversity and analyzing what’s new and what’s not new reflects back on the things we thought we knew well." ...

Climate change could trigger 'boom and bust' population cycles leading to extinction

...auses; in addition, each crash reduces the genetic diversity of a species, lowering its ability to adapt and making it more prone to extinction. ...

Out of Africa -- Bacteria, as well

...pool also becomes smaller. These losses in genetic diversity linger, even when the population starts once again...necks on their way across the globe, their genetic diversity declined the further they journeyed from their origin in East Africa. Scientists have now uncover...

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