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	<title> &#187; oregon silverspot butterfly conservation tarps</title>
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		<title>Tarps Used in Conservation of Oregon Silverspot Butterfly</title>
		<link>http://tarpsandcanopies.info/2009/12/22/tarps-used-in-conservation-of-oregon-silverspot-butterfly/</link>
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		<pubDate>Tue, 22 Dec 2009 14:32:04 +0000</pubDate>
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				<category><![CDATA[In the news]]></category>
		<category><![CDATA[Tarps]]></category>
		<category><![CDATA[oregon silverspot butterfly conservation]]></category>
		<category><![CDATA[oregon silverspot butterfly conservation tarps]]></category>

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		<description><![CDATA[Tarps have been part of the efforts to conserve the habitat for the Oregon silverspot butterfly, including use to reduce non-native plants.]]></description>
			<content:encoded><![CDATA[<p>The Oregon silverspot butterfly species have been put on the threatened list under the Endangered Species Act, and part of their <a href=http://photos.oregonlive.com/oregonian/2009/12/acquired_property_used_to_help_1.html rel=no follow>conservancy by the Nature Conservancy</a> in Oregon involves black polyethylene tarps. In the case of the brief article under the link, the non-native blackberry plants reduce the common blue violets that the butterfly larvae use for food. Tarps, then, are applied to the blackberry plants to reduce them and make room for more native plants, such as the common blue violets and other meadow plants. </p>
<p>Meadows are the habitat for these threatened butterflies but, as fires are being prevented in the area, fewer spaces for meadows are available for Oregon silverspot butterflies. Additionally, the current meadows are being filled with non-native plants, such as blackberries and canarygrass, and the plants the butterfly species would feed off of are being reduced. Their habitats, all in coastal areas, once stretched through California, Washington, and Oregon, but, presently, the butterflies are reduced to a few areas in Oregon. </p>
<p>One option for conservancy has been to instigate forest burnings in the late spring, summer, and early fall, as this allows for more meadow plant shoots in the area. Although the meadowland being created is somewhat artificial, it expands areas with native plants for the Oregon silverspot butterflies. Another option involving tarps targets current meadowlands, which are being threatened by species of non-native plants replacing native ones like the common blue violets. In these instances, non-native plants like canarygrass and blackberries are clipped back and covered with black polyethylene tarps. Although this doesn’t eliminate non-native plants, especially canarygrass, it reduces areas for them and allows common blue violets more area. Once such plants are available in current meadow spaces, the Oregon silverspot butterflies can lay their larvae, which will then feed off such plants and expand the butterfly population somewhat.</p>
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