{"id":1524,"date":"2018-06-21T20:46:28","date_gmt":"2018-06-21T19:46:28","guid":{"rendered":"https:\/\/www.service-public.pf\/diren\/?page_id=1524"},"modified":"2018-06-21T20:56:50","modified_gmt":"2018-06-21T19:56:50","slug":"mikania","status":"publish","type":"page","link":"https:\/\/www.service-public.pf\/diren\/prevenir\/especes-envahissantes\/mikania\/","title":{"rendered":"Mikania"},"content":{"rendered":"
Nom latin :<\/strong> Mikania micrantha, Mikania scandens Type :<\/strong> liane herbac\u00e9e Modes de dispersion :<\/strong> vent 1, hommes (v\u00eatements, sacs, cheveux) (2) Entre en comp\u00e9tition pour la lumi\u00e8re, l\u2019eau et les nutriments avec les plantes qu\u2019il recouvre, mena\u00e7ant leur survie (1, 2) R\u00e9f\u00e9rences<\/strong><\/p>\n (1) Meyer J.-Y., Wan, V. & Butaud J.-F. (2008) Les plantes envahissantes en Polyn\u00e9sie fran\u00e7aise. Direction de l\u2019environnement, D\u00e9l\u00e9gation \u00e0 la recherche, 84 p. Mikania Nom latin : Mikania micrantha, Mikania scandens Autre(s) nom(s) : Mile-a-minute weed Famille : Asteraceae Description: Type : liane herbac\u00e9e Taille : 1-3 m (1) Feuille : feuilles oppos\u00e9es (3-13 cm de long), triangulaires \u00e0 marge l\u00e9g\u00e8rement cr\u00e9nel\u00e9e* (1) Fleur : petites fleurs (2-3 mm de long) blanch\u00e2tres, odorantes, dispos\u00e9es en capitule* (1) Fruit\/graine […]<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":228,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"acf":[],"_links":{"self":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/1524"}],"collection":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/comments?post=1524"}],"version-history":[{"count":0,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/1524\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/228"}],"wp:attachment":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/media?parent=1524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nAutre(s) nom(s) :<\/strong> Mile-a-minute weed
\nFamille :<\/strong> Asteraceae<\/p>\nDescription:<\/h3>\n
\nTaille :<\/strong> 1-3 m (1)
\nFeuille :<\/strong> feuilles oppos\u00e9es (3-13 cm de long), triangulaires \u00e0 marge l\u00e9g\u00e8rement cr\u00e9nel\u00e9e* (1)
\nFleur :<\/strong> petites fleurs (2-3 mm de long) blanch\u00e2tres, odorantes, dispos\u00e9es en capitule* (1)
\nFruit\/graine :<\/strong> petit fruit sec noir (appel\u00e9 ak\u00e8ne, de 1-2 mm de long), \u00e0 c\u00f4tes et surmont\u00e9 d\u2019une touffe de soies (appel\u00e9e pappus*, de 2-3 mm de long) (1)<\/p>\nBiologie – \u00c9cologie<\/h3>\n
\nTypes de v\u00e9g\u00e9tation envahis en Polyn\u00e9sie fran\u00e7aise :<\/strong> for\u00eats s\u00e8ches et humides de basse et moyenne altitude (1)
\nHabitat(s) potentiel(s) :<\/strong> zone agricole, littoral, for\u00eat naturelle, plantation foresti\u00e8re, bord de rivi\u00e8re, friche, zone arbustive, zone urbaine, zone humide (2). Intol\u00e9rant au fort ombrage, il colonise les zones plus ouvertes, pr\u00e9f\u00e8re les sols humides, fertiles et riches en mati\u00e8re organique (2)
\nAltitudes :<\/strong> 0-800 m (1)
\nSe propage rapidement, s\u2019accrochant et grimpant sur n\u2019importe quel support vertical \u00e0 une vitesse de 2,7cm par jour (2). Un plant peut couvrir jusqu\u2019\u00e0 25 m\u00b2 en quelques mois et lib\u00e9rer plus de 40 000 graines viables chaque ann\u00e9e (2)
\nReproduction v\u00e9g\u00e9tative efficace par d\u00e9veloppement de racines au niveau des n\u0153uds (2)<\/p>\nQuels sont ses impacts ?<\/h3>\n
\nPoss\u00e8de des propri\u00e9t\u00e9s all\u00e9lopathiques r\u00e9duisant la vigueur des esp\u00e8ces voisines et pouvant r\u00e9duire la productivit\u00e9 des exploitations agricoles (2)
\nAugmente les co\u00fbts d\u2019entretien des zones ouvertes (terrain de particuliers, infrastructures, plantations)<\/p>\nQue peut-on faire contre cette liane ?<\/h3>\n
\n
\n
\n
\n
\n(2) Global Invasive Species Database, (2005). Available from: http:\/\/www.issg.org\/database\/species\/ecology.asp?si=19&fr=1&sts=sss [Accessed 23 December 2013]
\n(13) Swarbrick J. T. (1997) Environmental weeds and exotic plants on Christmas Island, Indian Ocean: a report to Parks Australia. 101 p. plus appendix.
\n(24) Englberger K. (2009) Invasive weeds of Pohnpei: A guide for identifcation and public awareness. Conservation Society of Pohnpei. 29 p.<\/p>\n","protected":false},"excerpt":{"rendered":"