{"id":16202,"date":"2026-03-06T11:38:15","date_gmt":"2026-03-06T10:38:15","guid":{"rendered":"https:\/\/agora.xtec.cat\/iessitges\/?p=16202"},"modified":"2026-03-06T12:06:17","modified_gmt":"2026-03-06T11:06:17","slug":"especies-exotiques-invasores-al-parc-del-garraf","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iessitges\/general\/especies-exotiques-invasores-al-parc-del-garraf\/","title":{"rendered":"Esp\u00e8cies ex\u00f2tiques invasores al Parc del Garraf"},"content":{"rendered":"\n

Les alumnes de l’optativa Reptes cient\u00edfics<\/strong> de 1r de batxillerat de l\u2019Institut Joan Ramon Benapr\u00e8s hem entrevistat l’Emilio Valbuena<\/strong>, bi\u00f2leg del Parc del Garraf<\/strong>, per con\u00e8ixer millor el problema de les esp\u00e8cies ex\u00f2tiques invasores<\/strong>. <\/p>\n\n\n\n

L’entrevista va tenir lloc el passat 19 de febrer, a les oficines del Parc del Garraf<\/a>, situades a la masia de La Pleta<\/strong>, entre el Garraf i Castelldefels. Ens vam despla\u00e7ar en tren fins al Garraf, i despr\u00e9s a peu pel cam\u00ed GR-92<\/strong> (Sender de la Mediterr\u00e0nia. Cam\u00ed de les costes<\/a>) fins a la Pleta.<\/p>\n\n\n\n

Al Parc del Garraf hi ha algunes esp\u00e8cies ex\u00f2tiques invasores que afecten l\u2019ecosistema. Una de les m\u00e9s importants \u00e9s l’eruga barrinadora de les palmeres<\/strong> (Paysandisia archon)<\/em>, una papallona que va arribar amb la importaci\u00f3 de palmeres. Les seves larves s\u2019alimenten de l\u2019interior de les palmeres i poden afectar el margall\u00f3<\/strong>, que \u00e9s l\u2019\u00fanica palmera aut\u00f2ctona i caracter\u00edstica del parc. <\/p>\n\n\n\n

Tamb\u00e9 s\u2019ha detectat la pres\u00e8ncia del seneci de primavera <\/strong>a la zona de la planta de l\u2019abocador del Garraf, a la Vall de Sant Joan. Aquesta planta invasora pot competir amb les esp\u00e8cies aut\u00f2ctones i dificultar el seu creixement.<\/p>\n\n\n\n

Per aix\u00f2, des del parc es fa un seguiment<\/strong> d’aquestes esp\u00e8cies, per controlar-ne l\u2019expansi\u00f3 i protegir la biodiversitat<\/strong> del Garraf.<\/p>\n\n\n\n

Quan una esp\u00e8cie es detecta per primera vegada en un espai natural, \u00e9s especialment important actuar amb rapides ja que, en aquesta fase inicial, les poblacions solen ser petites i encara \u00e9s possible controlar-les o fins i tot eliminar-les abans que s\u2019estableixin definitivament. Per aix\u00f2, la detecci\u00f3 r\u00e0pida<\/strong> i el seguiment continu s\u00f3n clau per controlar les esp\u00e8cies invasores.<\/p>\n\n\n\n

Tamb\u00e9 \u00e9s important destacar el paper que poden tenir els ciutadans en la detecci\u00f3 i el seguiment d\u2019esp\u00e8cies invasores. A trav\u00e9s de la ci\u00e8ncia ciutadana<\/strong>, qualsevol persona pot contribuir-hi observant i informant sobre la pres\u00e8ncia d\u2019aquestes esp\u00e8cies al seu entorn, utilitzant aplicacions, com Inaturalist<\/a> . Aquesta col\u00b7laboraci\u00f3 entre cient\u00edfics, gestors dels espais naturals i ciutadans pot ajudar a detectar abans les esp\u00e8cies invasores i facilitar actuacions <\/strong>m\u00e9s r\u00e0pides per controlar-les i protegir la biodiversitat del Parc del Garraf.<\/p>\n\n\n\n

Un altre aspecte a tenir en compte \u00e9s no tenir esp\u00e8cies a casa com a mascotes<\/strong> si poden suposar un risc per al medi, i sobretot no alliberar-les mai a la natura<\/strong>. Un exemple d’aix\u00f2 seria la tortuga de Florida (Trachemys scripta<\/em>), una esp\u00e8cie que s\u2019ha comercialitzat com a animal de companyia i que despr\u00e9s moltes persones acaben alliberant. Aix\u00f2 posa en perill la vida de les tortugues aut\u00f2ctones. Un altre cas s\u00f3n els gats: tot i que no \u00e9s una esp\u00e8cie invasora sin\u00f3 un animal de companyia, si viuen lliurement a l\u2019exterior poden tenir un impacte molt negatiu sobre la fauna. <\/p>\n\n\n\n

La visita al Parc del Garraf i l\u2019entrevista a l’Emilio Valbuena ens ha ajudat a entendre millor qu\u00e8 s\u00f3n les esp\u00e8cies ex\u00f2tiques invasores i quin impacte <\/strong>poden tenir sobre l\u2019ecosistema<\/strong>. Hem pogut veure com es detecten i quines dificultats hi ha per frenar la seva propagaci\u00f3.<\/p>\n\n\n\n

A m\u00e9s, hem apr\u00e8s com actuar correctament, com informar-nos sobre quines esp\u00e8cies poden ser perjudicials i, sobretot, que no es poden alliberar animals o plantes a la natura. Aquesta experi\u00e8ncia ens ha fet m\u00e9s conscients<\/strong> de com protegir la biodiversitat<\/strong> i de la nostra responsabilitat<\/strong> per evitar la propagaci\u00f3 d\u2019aquestes esp\u00e8cies.<\/p>\n\n\n\n

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Les alumnes de l’optativa Reptes cient\u00edfics de 1r de batxillerat de l\u2019Institut Joan Ramon Benapr\u00e8s hem entrevistat l’Emilio Valbuena, bi\u00f2leg del Parc del Garraf, per con\u00e8ixer millor el problema de les esp\u00e8cies ex\u00f2tiques invasores.  L’entrevista va tenir lloc el passat 19 de febrer, a les oficines del Parc del Garraf, situades a la masia de […]<\/p>\n","protected":false},"author":24,"featured_media":16205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[103,1,166],"tags":[980,979],"class_list":["post-16202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bat-1","category-general","category-sortides","tag-biologia-i-geologia","tag-reptes-cientifics"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/16202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/comments?post=16202"}],"version-history":[{"count":6,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/16202\/revisions"}],"predecessor-version":[{"id":16215,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/16202\/revisions\/16215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/media\/16205"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/media?parent=16202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/categories?post=16202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/tags?post=16202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}