Quantcast

Latest Genetic diversity Stories

Mountain Lions In Southern California Face Genetic Decay
2014-10-10 03:48:04

Provided by University of California - Davis Cut off by freeways and human development, mountain lions in southern California are facing a severe loss of genetic diversity, according to a new study led by the University of California, Davis in partnership with The Nature Conservancy. The study, published today in the journal PLOS ONE, represents the largest genetic sampling of mountain lions, or pumas, in southern California. It raises concerns about the current status of mountain...

Tiger Conservation Efforts Should Focus On Genetic Diversity
2014-04-17 04:27:58

Brett Smith for redOrbit.com - Your Universe Online While many tiger conservation efforts focus on the numbers of a population, maintaining the big cats’ genetic diversity is just as important, according to a report published on Thursday in the Journal of Heredity. "Numbers don't tell the entire story," study author Elizabeth Hadly, a professor in environmental biology at Stanford University, said in a recent statement. According to the study, because the tiger’s decline has...

Cause Of The Irish Potato Famine Revealed
2013-05-21 11:53:17

Max-Planck-Gesellschaft An international team of scientists reveals that a unique strain of potato blight they call HERB-1 triggered the Irish potato famine of the mid-19th century It is the first time scientists have decoded the genome of a plant pathogen and its plant host from dried herbarium samples. This opens up a new area of research to understand how pathogens evolve and how human activity impacts the spread of plant disease. Phytophthora infestans changed the course of...

2013-01-29 23:00:15

An article recently published in the Journal of Mammalogy, Volume 94 Issue 6 focuses on the struggling Florida manatee population and analyzes the factors pertaining to their decline. (PRWEB) January 29, 2013 Journal of Mammalogy — There is a better than 49 percent probability that the Florida manatee population will fall below 500 individual animals in the next 100 years, according to one analysis. One of the factors that can drive population decline is a lack of genetic diversity....

Low Genetic Diversity Spells Bad News For Koalas
2012-10-24 14:41:12

Brett Smith for redOrbit.com - Your Universe Online When populations of animals are under threat, a major concern surrounding their potential for survival is the genetic diversity within the population. A high level of genetic diversity makes for a resilient population, while low genetic diversity could be a red flag for conservationists. In a new study, an international team of researchers has investigated the genetic diversity of the koala population and found through both historical...

Female Pit Vipers Give Birth Without Mating
2012-09-12 12:04:30

Brett Smith for redOrbit.com - Your Universe Online In what could be the ultimate act of feminism, wild female North American pit vipers have been shown to give birth without mating, according to a new report published in the Royal Society's Biology Letters. A phenomenon, known as facultative parthenogenesis (FP), has been observed in captivity before and the report asserts that it can occur regardless of the presence of male individuals. “In these populations, males are...

146766433
2012-09-06 17:18:38

Brett Smith for redOrbit.com — Your Universe Online The latest IUCN Red List registers Magellanic penguins as ℠Near Vulnerable´ from a conservation standpoint, however a group of scientists from Bowling Green State University want to see if concerns might be tempered or fueled by understanding the genetic diversity amongst the birds´ populations in South America. To measure the amount of genetic diversity in the birds, the researchers focused on the Major...

2012-04-05 21:08:21

TAU breeds population of lab mice with genetic diversity closer to humans With a 95 percent genomic similarity to humans, mice have long been used to learn about the genetic causes of human disease. Once researchers can shine a light on the genetic factors that cause disease in mice, they can start to develop prevention and treatment options to protect the human population. But this process, called genetic mapping, is a long and difficult road, made more challenging by the 5% difference...

2012-02-10 00:01:48

A recent large and comprehensive analysis of 50,000 genetic variants across 2,000 genes linked to cardiovascular and metabolic function has identified four genes associated with type 2 diabetes (T2D) and six independent disease-associated variants at previously known loci. The findings, which provide valuable insight into the genetic risk for T2D across multiple ethnicities, add to the growing list of genetic variants that affect the risk of developing T2D and could pave the way for...

2011-12-22 15:21:02

The entire Hawaiian population of the peat moss Sphagnum palustre appears to be a clone that has been in existence for some 50,000 years researchers have discovered. The study is published in New Phytologist. Among the most long-lived of organisms, every plant of the Hawaiian population appears to have been produced by vegetative rather than sexual propagation and can be traced back to a single parent. Surprisingly, the genetic diversity of the Hawaiian clone is comparable to that...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
Related