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Common Introduced Weed Threatens Hardwood Forests

Maples, ashes and other hardwood trees are being harmed by an invasive weed that indirectly slows their growth to about one-tenth the normal speed, scientists say.

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Loss of Pollinators Especially Hard on Plants in Biological Hotspots

Species in species-rich regions face two challenges that increase the risk of extinction: habitat destruction, which is occurring at alarming rates in the tropics, and reduced pollinator activity.

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What Happens When You Mess With Symbiotic Pollination Relationships?

With as many as 70% of plant species dependent on animal pollinators and at least 82 mammalian pollinator species and 103 bird pollinator species considered threatened or extinct, this is sobering news.

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When Mutualism Isn’t Mutual, Part 1

Many, if not all, plants maintain relationships with bacteria, and like any hardworking homeowner, they have developed ways to get rid of freeloaders … biologists have found. In a study of a coastal California lupine that harbors nitrogen-fixing bacteria in its roots, … researchers have shown that the roots respond differently to bacteria that efficiently produce nitrogen than they do to the slackers.

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Healthy Mangroves Protect Human Communities

Places that had healthy coral reefs and intact mangroves, which act as natural buffers, were less badly hit by the tsunami.

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Flowers Welcome Fishy Neighbors

Fish and flowering plants would seem to have as much in common as pigs and beauty soap. But ecologists … found an amazing relationship between the different species that provides a new direction for understanding how ecosystems “hook up.”

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Ants Kill Plants That Get In Their Way

An Amazonian ant that uses its own 'herbicide' to shape its surroundings has been described by scientists.

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Good For Your Lawn, Bad For Native Flora

The practical implications of our findings are that the more herbivores there are in an area, the more likely it will be that infected tall fescue grass will spread and suppress native plants.

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What Can YOU Do in Half a Millisecond?

Like a medieval catapult, the bunchberry dogwood shoots pollen grains into the air faster than the Venus flytrap can snap its jaws shut, giving this launcher the speed record for plants.