{"id":6518,"date":"2023-03-09T18:43:13","date_gmt":"2023-03-09T17:43:13","guid":{"rendered":"https:\/\/agora.xtec.cat\/col-elpilar\/?p=6518"},"modified":"2023-03-13T18:45:20","modified_gmt":"2023-03-13T17:45:20","slug":"especies-invasores","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/col-elpilar\/portada\/especies-invasores\/","title":{"rendered":"ESP\u00c8CIES INVASORES"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6519 size-medium alignleft\" src=\"https:\/\/agora.xtec.cat\/col-elpilar\/wp-content\/uploads\/usu291\/2023\/03\/Foto-noticia-1-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/agora.xtec.cat\/col-elpilar\/wp-content\/uploads\/usu291\/2023\/03\/Foto-noticia-1-300x224.jpg 300w, https:\/\/agora.xtec.cat\/col-elpilar\/wp-content\/uploads\/usu291\/2023\/03\/Foto-noticia-1-200x150.jpg 200w, https:\/\/agora.xtec.cat\/col-elpilar\/wp-content\/uploads\/usu291\/2023\/03\/Foto-noticia-1.jpg 580w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Les esp\u00e8cies invasores s\u00f3n organismes originaris d&#8217;altres llocs, introdu\u00efts en nous ecosistemes per activitats humanes i que s\u00f3n capa\u00e7os de sobreviure i reproduir-s&#8217;hi. Poden ser plantes, animals o altres organismes que causen danys al medi ambient, salut humana i economia. En el cas d&#8217;esp\u00e8cies de plantes i animals, a causa de la manca de depredadors naturals a els nous ecosistemes, les seves poblacions creixen r\u00e0pidament i pot competir per recursos amb poblacions d&#8217;esp\u00e8cies natives, alterant-ne les xarxes tr\u00f2fiques i fins i tot posant en perill la seva superviv\u00e8ncia. Per controlar les esp\u00e8cies invasores, \u00e9s important saber la dimensi\u00f3 de la seva poblaci\u00f3. Per aix\u00f2 els cient\u00edfics fan recomptes d\u2019individus en el medi on viuen.<\/p>\n<p>L&#8217;alumnat de 1r d&#8217;ESO hem fet una pr\u00e0ctica amb un exemple hipot\u00e8tic. Hem ajuntat 200 llenties. Aquestes llenties representaran el total d\u2019individus de l\u2019esp\u00e8cie aut\u00f2ctona. Hem separat 20 llenties i les hem pintat d\u2019un color diferent. Aquestes llenties de color representaran els individus de l\u2019esp\u00e8cie invasora.\u00a0 Hem fet un mostratge agafant un grapat d\u2019unes 15-20 llenties i hem fet el recompte de les de color per determinar-ne la proporci\u00f3. Ho hem repetit un m\u00ednim de 5 vegades. Amb els 5 resultats podem fer la mitjana de les proporcions, i hem calculat la proporci\u00f3 d\u2019individus de l\u2019esp\u00e8cie invasora en relaci\u00f3 al total d\u2019individus aut\u00f2ctons.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les esp\u00e8cies invasores s\u00f3n organismes originaris d&#8217;altres llocs, introdu\u00efts en nous ecosistemes per activitats humanes i que s\u00f3n capa\u00e7os de sobreviure i reproduir-s&#8217;hi. Poden ser plantes, animals o altres organismes que causen danys al medi ambient, salut humana i economia. En el cas d&#8217;esp\u00e8cies de&hellip;  <a href=\"https:\/\/agora.xtec.cat\/col-elpilar\/portada\/especies-invasores\/\" title=\"Read ESP\u00c8CIES INVASORES\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":6519,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[22,21,4],"tags":[],"class_list":["post-6518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1eso","category-eso","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/posts\/6518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/comments?post=6518"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/posts\/6518\/revisions"}],"predecessor-version":[{"id":6521,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/posts\/6518\/revisions\/6521"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/media\/6519"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/media?parent=6518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/categories?post=6518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/col-elpilar\/wp-json\/wp\/v2\/tags?post=6518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}