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Tag: "wild" at biology news

Marine 'dead zone' off Oregon is spreading

...a significant role in these events. "We're seeing wild swings from year to year in the timing and duration of winds favorable for upwelling," said Jack Barth, an oceanographer with PISCO and the OSU College of Oceanic and Atmospheric Sciences. "This change from normal seasonal patterns and the increased ...

Creating a window on 'oceans in motion'

...has revealed the Pacific migration routes of young wild salmon from US and Canadian rivers. Knowing their usual travels along marine highways has far-reaching implications for authorities that need to determine when fisheries should be open or closed to conserve endangered stocks. Other scientists from...

Scientists aim to thwart use of flu as bioweapon

...0 deaths in the United States alone each year. And wild birds infected with the deadly H5N1 strain of bird flu are gradually broadening the scope of that disease. This week in Rochester, scientists are discussing ways to better understand the flu and also how to prevent the possibility that terrorists cou...

Wild bees and the flowers they pollinate are disappearing together

...inators are essential for the reproduction of many wild flowers and crops. Co-author Simon Potts (of the U...ntries at least there is strong evidence that both wild pollinators and the wildflowers that they visit are in serious trouble. ...

New tiger report release: Tiger habitat down from just a decade ago

... providing excellent opportunities for recovery of wild tiger populations. The largest tiger landscapes e...conservation on their countries' agendas. "Saving wild tigers requires tiger range countries to work together," said Mahendra Shrestha, director of Nationa...

Primates take weather into account when searching for fruits

...ddress this anomalous gap. By following a group of wild gray-cheeked mangabeys from dawn to dusk over 210 days in their natural rainforest habitat of Kibale Forest, Uganda, the scientists obtained an almost complete record of their foraging decisions in relation to their preferred food, figs. The data sho...

Brighter future for giant panda?

...ere may be many more giant pandas remaining in the wild than previously thought. The giant panda is one o...ntly developed 'non-invasive' methods for counting wild animal populations to re-examine panda population estimates. This method profiles DNA from panda fa...

Colombian frog believed extinct found alive

...d saving the last of these amphibians, both in the wild and through captive breeding programs," said Fabio Arjona, executive director of Conservation International in Colombia. "That will require a lot of support from the local and international communities." The painted frog is one of 110 species of a d...

Wild vs. lab rodent comparison supports hygiene hypothesis

In a study comparing wild rodents with their laboratory counterparts, resear...which compares specific immune system responses of wild rodents to laboratory rodents, could open up a new approach to studying human disease and allergies ...

UGA researchers find that hunting can increase the severity of wildlife disease epidemics

...earchers shows that the common practice of killing wild animals to control disease outbreaks can actually ...o what you expect." The reasoning behind killing wild animals to control disease outbreaks is simple: fewer animals should result in reduced transmission ...

Wild meerkats school their young

...gh learning per se wouldn't be surprising, whether wild mammals teach their young was still debated. The findings were published in this week's edition of the journal Science. Meerkats live in groups of three to 40 individuals in the arid regions of southern Africa. Each group includes a dominant male...

Bird brains shrink from exposure to contaminants

...l exposure to a contaminant damages the brain of a wild animal. "These residues have been persisting since the late 1960s--that's what is really disturbing," said Dr. Andrew Iwaniuk, a post-doctoral research fellow in the U of A's Department of Psychology. "It has been years since it has been used and ...

WWF captures first-ever photo of wild rhino on Borneo

...as captured the first-ever photo of a rhino in the wild on the island of Borneo, World Wildlife Fund and the Sabah Wildlife Department announced today. The rhino is believed to be one of a population of as few as 13 whose existence was confirmed during a field survey last year in the interior forests of ...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...s are expressed in plants that no longer express a wild type copy of IRT1, the engineered allele allows th...rthermore, these plants have twice as much Iron as wild type plants when grown in the presence of Cadmium. While the ability to quantify the amount of pa...

Gorilla susceptibility to Ebola virus: the cost of sociality

...this region. However, the causes of outbreak among wild animals, and the way the virus spreads, remain unclear. It has been argued that the infection of apes only occurs by way of the so-called "reservoir" species (unknown, but possibly fruit bats), with ape-to-ape transmission playing only a minor role d...

Female guppies risk their lives to avoid too much male attention

... to avoid too much attention from males. Observing wild population of guppies in the rainforest of Trinidad, the researchers found that female guppies swim in habitats that contain few males ?but many predators. "Male guppies spend most of their time displaying to females. But if their courtship displays...

Biologists find regions of rice domestication

...sts of more than 300 types of rice, including both wild and domesticated, and found genetic markers that r... looked for DNA sequences that were shared by both wild and domesticated types. These two major groups clustered out by geography." DNA is comprised of va...

Salk scientists get to the root of plant cell fate

...stitute for Biological Studies studying the frumpy wild mustard plant Arabidopsis thaliana rather than the elegant rose recently determined why plants with a defective TOPLESS gene form an extra root where the shoot should be. Their findings, published in the June 9th issue of the journal Science, suggest...

Potato blight pathogenicity explained by genome plasticity

... highly specific way: resistance ( R ) genes from wild species, which are introduced into cultivated potato by breeding, are matched by avirulence ( Avr ) genes in Phytophthora . While many such gene matches are predicted, only a few have been confirmed by molecular and functional studies. Avr genes a...

Scientists discover that ancient genes dictate flowering, fall bud set

...eered trees sterile so that they cannot cross with wild trees -- used consecutive years of poplar clones to study the multi-year delay in flowering. The Science paper reports their discovery that the expression of the FT gene increases with age. "This gradual increase might be part of the mechanism by whi...

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