Posted: 14 Feb 2015 03:45 PM PST
Can beef production help restore ecosystems? Scientists are examining the adaptive multi-paddock (AMP) grazing management technique that involves using small-sized fields to provide short periods of grazing for livestock and long recovery periods for fields. The method mimics the migrations of wild herd animals, such as elk, bison and deer. The science team proposes a whole system science measurement approach in comparing AMP grazing with conventional, continuous grazing methods.
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Posted: 14 Feb 2015 06:24 AM PST
Several recent science studies have claimed that the gut microbiome -- the diverse array of bacteria that live in the stomach and intestines -- may be to blame for obesity. But one expert says it is not that simple.
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Posted: 14 Feb 2015 06:23 AM PST
Researchers are measuring bat populations in post-wildfire forests of Arizona. Bats are considered an indicator species of habitat health.
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Posted: 13 Feb 2015 01:48 PM PST
As much as 75 percent of global seed diversity in staple food crops is held and actively used by a wide range of small farmholders -- workers of less than three to seven acres -- with the rest in gene banks.
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Posted: 13 Feb 2015 01:48 PM PST
An increasingly complex, interconnected world makes it difficult to study sustainability and figure out who the winners and losers are.
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Posted: 13 Feb 2015 08:21 AM PST
Rivers and streams could be a major source of antibiotic resistance in the environment. A new study found that greater numbers of resistant bacteria exist close to some waste water treatment works, and that these plants are likely to be responsible for at least half of the increase observed.
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Posted: 12 Feb 2015 12:39 PM PST
Experts from around the world focused on the threat that canine distemper virus poses to the conservation of increasingly fragmented populations of threatened carnivores. While canine distemper has been known for many years as a problem affecting domestic dogs, the virus has been appearing in new areas and causing disease and mortality in a wide range of wildlife species, including tigers and lions. In fact, many experts agree that the virus should not be called “canine distemper” virus at all, given the diversity of species it infects.
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Posted: 11 Feb 2015 03:30 PM PST
Bacteria that are commonly found in the mouth are often abundant in patients with colon cancer, but the potential role these microbes play in tumor development has not been clear. A new study reveals that the oral pathogen Fusobacterium nucleatum protects a variety of tumor cells from being killed by immune cells. The findings could open new avenues for the treatment of cancer in human patients.
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2015년 2월 15일 일요일
ScienceDaily: Plants & Animals News
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