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Weeds survive the wild better than natives
07-03-2007 · EurekAlert!Weeds are winning the battle when it comes to surviving in the wild with foliage eating insects preferring the taste of native plants, according to a study by Queensland University of Technology. Eve White, from QUT's School of Natural Resource Sciences, has been investigating the effect weeds can have on native plants especially when foliage eating insects, also known as herbivores, are involved.
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Keywords: weeds, survive, wild, natives, weed, native
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- Eastern farms have native-bee insurance
11-24-2007 · Science News Online
If honeybees somehow vanished, the pockets of wild land in the Delaware Valley still harbor enough native bees to fill in and do the tough job of pollinating watermelon farms.
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- Interaction of just 2 genes governs coloration patterns in mice
08-13-2007 · EurekAlert!
Biologists at Harvard University and the University of California, San Diego, have found that a simple interaction between just two genes determines the patterns of fur coloration that camouflage mice against their background, protecting them from many predators. The work marks one of the few instances in which specific genetic changes have been linked to an organism's ability to survive in the wild.
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- Ant invaders eat the natives, then move down the food chain
12-18-2007 · EurekAlert!
The Argentine ant, Linepithema humile, is one of the most successful invasive species in the world, having colonized parts of five continents in addition to its native range in South America. A new study sheds light on the secrets of its success.
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- A new baseline of invasive plants in Isabela
10-16-2007 · EurekAlert!
Charles Darwin Foundation botanists have published a list of all the introduced plants growing in Puerto Villamil, Isabela Island, the third largest town in Galapagos. 261 species were recorded, 39 of which were found growing wild. Despite 95 percent of the archipelago falling under the Galapagos National Park, invasive plants spreading from the inhabited areas are having large impacts on the native flora and fauna.
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- Viable tiger populations, tiger trade incompatible
06-05-2007 · EurekAlert!
In the cover story of this month's BioScience journal, leading tiger experts warn that if tigers are to survive, governments must stop all trade in tiger products from wild and captive-bred sources, as well as ramp up efforts to conserve the species and their habitats.
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- Weed gave up sex long ago
08-07-2007 · EurekAlert!
The ability of plants to self-pollinate -- a big factor in the spread of weeds -- is much older than previously thought in one widely studied species, biologists from five leading institutions say. The findings show that at least in plant evolution, sex with others may bemore trouble than it's worth.
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- New Insights Into Healthful Compounds In Native American Diets
10-10-2006 · ScienceDaily
California's role as a national "health food" trendsetter goes back farther than most people suspect -- way back, in fact, when it comes to consumption of a food especially rich in healthy phytochemicals. In an advance toward understanding the early California Native American diet, food scientists have identified the full range of phytochemicals in tanoak acorns.
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- A new language barrier -- Why learning a new language may make you forget your old one
01-18-2007 · EurekAlert!
Traveling abroad presents an ideal opportunity to master a foreign language. While the immersion process facilitates communication in a diverse world, people are often surprised to find they have difficulty returning to their native language. This phenomenon is referred to as first-language attrition and has University of Oregon psychologist Benjamin Levy wondering how it is possible to forget, even momentarily, words used fluently throughout one's life.
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- Chinese and White immigrants highest homeowners
06-19-2007 · EurekAlert!
In both Canada and the US, Chinese and White immigrants have the highest adjusted homeownership rates of all groups, at times even exceeding comparably positioned native-born households, according to a University of Alberta sociologist who compared rates by skin colour and across countries. Black immigrants, on the other hand, have the lowest rates of all groups, with Filipinos and South Asians situated between these extremes.
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- Proteins pack tighter in crowded native state
11-12-2007 · EurekAlert!
The syrupy soup of proteins, ribosomes and membranes inside a living cell is so tightly packed it may increase the structural content of proteins by as much as 25 percent, according to new research from Rice University and the University of Houston. The study is one of the first aimed at determining how the crowded environment inside a living cell affects protein structure.
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