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	<title>Newsletter 2023 03 n°11 &#8211; CEN Isère</title>
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		<title>La Dolomède des roseaux et la Réserve naturelle de la Tourbière du Grand Lemps</title>
		<link>https://www.cen-isere.org/2023/04/rngl_dolomede/</link>
		
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		<pubDate>Thu, 13 Apr 2023 08:03:23 +0000</pubDate>
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		<category><![CDATA[Newsletter 2023 03 n°11]]></category>
		<category><![CDATA[Réserve naturelle du Grand-Lemps]]></category>
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<p><b><strong>Le saviez-vous ? La Dolomède des roseaux (<em>Dolomedes plantarius</em>) est présente dans la Réserve naturelle de la Tourbière du Grand Lemps et c&rsquo;est une des espèces classées « en danger d&rsquo;extinction » dans la liste rouge des araignées de France métropolitaine.</strong></b><b><i><br />
</i></b></p>
<p>Ce gros travail de synthèse, qui vient d&rsquo;être publié par l’UICN (union internationale pour la conservation de la nature), a permis d&rsquo;évaluer l’état des populations des 1622 espèces de métropole. Il en ressort que 170 d’entre elles sont menacées et que plus de 500 sont encore insuffisamment connues pour être bien évaluées. Les principales menaces sont, là aussi, la destruction des milieux de vie naturels, dégradation dont l&rsquo;impact sera accentué par les changements climatiques.</p>
<p>Un suivi scientifique de 5 ans est en cours sur la Réserve naturelle pour comparer l’impact du pâturage bovin avec l&#8217;embuissonnement du marais sur les 168 espèces d’araignées présentes, dont 10 figurent sur cette Liste Rouge nationale !</p>
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