{"id":13266,"date":"2026-05-14T14:49:20","date_gmt":"2026-05-14T12:49:20","guid":{"rendered":"https:\/\/marimurtra.cat\/?p=13266"},"modified":"2026-05-14T14:49:22","modified_gmt":"2026-05-14T12:49:22","slug":"epifitisme-lestrategia-de-viure-entre-el-cel-i-la-terra","status":"publish","type":"post","link":"https:\/\/marimurtra.cat\/fr\/epifitisme-lestrategia-de-viure-entre-el-cel-i-la-terra\/","title":{"rendered":"Epifitisme: l&rsquo;estrat\u00e8gia de viure entre el cel i la terra"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Al <strong>Jard\u00ed Bot\u00e0nic Marimurtra<\/strong>, sovint convidem els visitants a aixecar la mirada m\u00e9s enll\u00e0 dels parterres. Entre les branques dels nostres exemplars, s\u2019hi desenvolupa una din\u00e0mica biol\u00f2gica fascinant que anomenem popularment \u00ab\u00a0<strong>amistat vegetal<\/strong>\u00ab\u00a0, per\u00f2 que en termes bot\u00e0nics estrictes respon al concepte d\u2019<strong>epifitisme<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Una adaptaci\u00f3 evolutiva brillant<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;epifitisme no nom\u00e9s es troba en un grup taxon\u00f2mic en si mateix, si no \u00e9s una <strong>estrat\u00e8gia de vida<\/strong> que ha evolucionat de manera independent en unes 80 fam\u00edlies de plantes vasculars. Aquesta adaptaci\u00f3 permet a determinades esp\u00e8cies colonitzar l\u2019<strong>estrat arbori<\/strong> per garantir-se un recurs sovint esc\u00e0s al s\u00f2l de les selves i boscos. En situar-se sobre les branques, aquestes plantes eviten la <strong>compet\u00e8ncia directa<\/strong> per l&rsquo;espai i la llum, transformant l&rsquo;escor\u00e7a dels arbres en el seu n\u00ednxol ecol\u00f2gic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Amb tot aix\u00f2, \u00e9s fonamental desmuntar un mite com\u00fa: <strong>les ep\u00edfites no s\u00f3n par\u00e0sites<\/strong>. A difer\u00e8ncia d&rsquo;aquestes \u00faltimes, les ep\u00edfites no desenvolupen haustoris (arrels que penetren els teixits de l&rsquo;hoste per extreure nutrients), sin\u00f3 que utilitzen l&rsquo;arbre exclusivament com a <strong>suport<\/strong> per estar m\u00e9s elevades. Es tracta d&rsquo;una relaci\u00f3 de <strong>comensalisme<\/strong> on l&rsquo;ep\u00edfita obt\u00e9 un benefici clar (+) mentre que l&rsquo;arbre no rep cap dany (=).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Com que no tenen acc\u00e9s a la terra, aquestes plantes han desenvolupat mecanismes sofisticats per captar aigua i nutrients:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bromeli\u00e0cies<\/strong> (com el clavell d&rsquo;aire): moltes esp\u00e8cies de <em>Tillandsia<\/em> posseeixen <strong>tricomes<\/strong>, p\u00e8ls altament especialitzades, que absorbeixen la humitat atmosf\u00e8rica i protegeixen la planta de la insolaci\u00f3 extrema.<\/li>\n\n\n\n<li><strong>Orqu\u00eddies<\/strong>: moltes han desenvolupat el <strong>velamen<\/strong>, un teixit esponj\u00f3s a les arrels a\u00e8ries que actua com una membrana capa\u00e7 de retenir l&rsquo;aigua de pluja de manera gaireb\u00e9 instant\u00e0nia.<\/li>\n\n\n\n<li><strong>Falgueres<\/strong> i altres grups: esp\u00e8cies com la <em>Platycerium<\/em> acumulen restes vegetals a la seva base per crear un <strong>micros\u00f2l propi<\/strong> en plena suspensi\u00f3.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Durant la vostra visita al Jard\u00ed, podreu observar aquest fenomen en la seva m\u00e0xima expressi\u00f3 per tot arreu. A les branques d&rsquo;arbres i arbustos, diversos exemplars de <em>Tillandsia<\/em> conviuen en <strong>perfecta harmonia<\/strong>, creant un tap\u00eds platejat que \u00e9s testimoni viu d&rsquo;aquesta \u00ab\u00a0amistat vegetal\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Per aprofundir en aquest concepte, us recomanem trobar el nostre <strong>cartell sobre l&rsquo;amistat vegetal<\/strong> i la nostra <strong>pissarra n\u00f2mada<\/strong>, on expliquem les difer\u00e8ncies estructurals entre les plantes terrestres, aqu\u00e0tiques i aquestes fascinants \u00ab\u00a0a\u00e8ries\u201d.<\/p>\n\n\n<div id=\"metaslider-id-13267\" style=\"width: 100%;\" class=\"ml-slider-3-110-0 metaslider metaslider-flex metaslider-13267 ml-slider has-dots-nav ms-theme-default-base\" role=\"region\" aria-label=\"Amistat vegetal\" data-height=\"1350\" data-width=\"1080\">\n    <div id=\"metaslider_container_13267\">\n        <div id=\"metaslider_13267\">\n            <ul aria-live='off' class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-13278 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-1.jpg\" data-slide-type=\"image\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-1.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13278 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (1)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13279 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-2.jpg\" data-slide-type=\"image\"><img decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-2.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13279 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (2)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13280 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-3.jpg\" data-slide-type=\"image\"><img decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-3.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13280 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (3)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13281 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-4.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-4.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13281 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (4)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13282 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-5.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-5.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13282 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (5)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13283 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-6.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-6.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13283 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (6)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13284 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-7.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-7.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13284 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (7)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13285 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-8.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-8.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13285 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (8)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13286 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-9.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-9.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13286 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (9)\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-13287 ms-image \" aria-roledescription=\"slide\" data-date=\"2026-05-14 14:48:26\" data-filename=\"Amistat-vegetal-Marimurtra-Epifitisme-10.jpg\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/marimurtra.cat\/wp-content\/uploads\/2026\/05\/Amistat-vegetal-Marimurtra-Epifitisme-10.jpg\" height=\"1350\" width=\"1080\" alt=\"\" class=\"slider-13267 slide-13287 msDefaultImage\" title=\"Amistat vegetal Marimurtra - Epifitisme (10)\" \/><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Al Jard\u00ed Bot\u00e0nic Marimurtra, sovint convidem els visitants a aixecar la mirada m\u00e9s enll\u00e0 dels parterres. Entre les branques dels nostres exemplars, s\u2019hi desenvolupa una din\u00e0mica biol\u00f2gica fascinant que anomenem popularment \u00ab\u00a0amistat vegetal\u00ab\u00a0, per\u00f2 que en termes bot\u00e0nics estrictes respon al concepte d\u2019epifitisme. Una adaptaci\u00f3 evolutiva brillant L&rsquo;epifitisme no nom\u00e9s es troba en un grup [&hellip;]<\/p>\n","protected":false},"author":95,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[10],"tags":[],"class_list":["post-13266","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/posts\/13266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/comments?post=13266"}],"version-history":[{"count":1,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/posts\/13266\/revisions"}],"predecessor-version":[{"id":13288,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/posts\/13266\/revisions\/13288"}],"wp:attachment":[{"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/media?parent=13266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/categories?post=13266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marimurtra.cat\/fr\/wp-json\/wp\/v2\/tags?post=13266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}