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Old 08-25-2010, 11:31 AM   #1
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Default Trojan Horse attack on native lupine

Trojan Horse attack on native lupine
Tiny mice advance under of invasive beachgrass to feast on seeds of endangered plant
Public release date: 13-Aug-2010
Contact: Diana Lutz
Washington University in St. Louis

Trojan Horse attack on native lupine
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It's a battle between an invasive plant and a native plant, but with a new twist. The two plants, European beachgrass and Tidestrom's lupine, are not in direct competition, and yet the beachgrass is helping to drive the lupine over the cliff.

European beachgrass provides cover that allows a timid deer mouse to get close enough to the lupine to snip off stalks of lupine fruits without being nabbed by overflying birds.

In the August issue of Ecology, biologists at Washington University in St. Louis report on...
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Old 08-31-2010, 11:52 AM   #2
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Default Mice and non-native grass gang up on native plant in West Marin

Mice and non-native grass gang up on native plant in West Marin
Mark Prado
Posted: 08/21/2010 10:16:08 PM PDT

Mice and non-native grass gang up on native plant in West Marin - Marin Independent Journal
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The two plants, the non-native European beach grass and native Tidestrom's lupine, were already at odds, with the former muscling out the latter as it grew unfettered. Now the beach grass is providing cover that allows deer mice to munch on stalks of lupine fruits without being grabbed by raptors overhead.

"The white-footed deer mouse is a native, but their numbers are probably too high because they are being protected by this invasive beach grass," said John Dell'Osso...
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Old 08-31-2010, 12:35 PM   #3
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Default Invasive Species Lets Other Species Disrupt Environment (Podcast)

Invasive Species Lets Other Species Disrupt Environment (Podcast)
Steve Mirsky reports
August 16, 2010

Invasive Species Lets Other Species Disrupt Environment: Scientific American Podcast
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In a case of what's called "apparent competition," invasive beach grass is indirectly hurting a native lupine species in California by providing cover for mice that eat the lupine's seeds.
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attack, beach grass, deer mice, deer mouse, endangered, endangered plant, endangered plants, european beachgrass, horse, invasive plant, lupine, mice, native, native lupine, native plant, tidestrom's lupine, trojan

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