{"id":20559,"date":"2024-07-11T13:46:17","date_gmt":"2024-07-11T11:46:17","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=20559"},"modified":"2024-10-30T10:09:07","modified_gmt":"2024-10-30T09:09:07","slug":"colobra-o-escurco","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/colobra-o-escurco\/","title":{"rendered":"Colobra o escur\u00e7\u00f3?"},"content":{"rendered":"

El dia 6 de maig de els nens i les nenes de cinqu\u00e8 de l\u2019Escola Els Pins<\/a> de Cornell\u00e0 de Llobregat varen investigar la qualitat de l\u2019aigua de la riera de Vallvidrera<\/a> a la zona de La Rierada. Uns dels grups, mentre feia les primeres observacions a la zona de Can Castellv\u00ed, va trobar un petit animal a la vora de l\u2019aigua. Es tractava d\u2019un exemplar juvenil de serp d\u2019aigua, que aprofitava els primers raigs de sol per activar-se. El seu nom cient\u00edfic \u00e9s Natrix maura<\/i>, i es coneix amb diversos noms: colobra d\u2019aigua, serp pudent, colobra viperina, colobra escur\u00e7onera o escur\u00e7\u00f3 d\u2019aigua.<\/p>\n

\"\"Descripci\u00f3: <\/b>es tracta d\u2019una esp\u00e8cie no verinosa que pot assolir 1m de longitud. Presenta un disseny dorsal variable, amb colors de fons marronosos o grisencs amb un dibuix fosc en ziga-zaga i ocels amb el centre clar als costats. El ventre \u00e9s groc ataronjat amb taques fosques sovint quadrangulars.\u00a0 T\u00e9 un cap ben diferenciat i ample, amb escates i ulls grans. T\u00edpicament t\u00e9 un dibuix en forma de V a la part posterior del cap. Ulls grans amb pupil\u00b7les arrodonides.<\/p>\n

H\u00e0bitat: <\/b>es troba en qualsevol medi aqu\u00e0tic, des de rius, on prefereix les zones m\u00e9s calmes, fins a fonts o punts d\u2019aigua temporals. Tot i que \u00e9s for\u00e7a abundant en molts indrets naturals i artificials, les seves poblacions estan amena\u00e7ades per diversos factors com s\u00f3n la p\u00e8rdua o fragmentaci\u00f3 d\u2019h\u00e0bitats, la contaminaci\u00f3, la manca de preses i l\u2019eliminaci\u00f3 directa per part dels humans.<\/p>\n

\"\"Alimentaci\u00f3: <\/b>s\u2019alimenta de peixos i amfibis com ara granotes i gripaus. Els individus m\u00e9s joves capturen insectes, cap grossos i petits invertebrats com cucs, sangoneres o cargols.<\/p>\n

Reproducci\u00f3: <\/b>la c\u00f2pula t\u00e9 lloc a la primavera o a la tardor, i la posta consta de 4 a 20 ous que desclouen al cap de dos mesos. Les femelles es poden reproduir al 4-5 anys i els mascles, que s\u00f3n m\u00e9s petits, ho fan als 3 anys.<\/p>\n

Comportament: <\/b>di\u00fcrna, molt bona nedadora tot i que tendeix a romandre imm\u00f2bil assolellant-se a la vora o sobre objectes flotants. Aquesta serp \u00e9s inofensiva, a part de no tenir ver\u00ed, pr\u00e0cticament mai mossega. Per\u00f2 t\u00e9 un comportament defensiu que consisteix en aplanar el cap, que adopta forma triangular, treure la llengua b\u00edfida, xiular i mostrar el seu disseny dorsal, tot plegat per imitar un escur\u00e7\u00f3. Aquesta confusi\u00f3 sovint \u00e9s fatal per l\u2019animal, donada la por que tenen moltes persones a les serps, especialment si s\u00f3n verinoses. La millor manera de diferenciar aquestes dues esp\u00e8cies \u00e9s observant la forma de la pupil\u00b7la, rodona en el cas de la serp d\u2019aigua i vertical en l\u2019escur\u00e7\u00f3, i la forma del musell, m\u00e9s arrodonit en el cas de la colobra d\u2019aigua.<\/p>\n

\"\"La serp capturada, en ser manipulada pels adults, va descarregar un l\u00edquid molt pudent que ens va obligar a rentar-nos les mans. Va ser una troballa molt especial que ens va permetre conscienciar als nens i nenes que no s’ha d’acabar mai amb la vida d\u2019aquests animals. Tot i la seva mala fama, les serps formen part de la fauna aut\u00f2ctona i, com la resta d\u2019animals, tenen un paper clau en els nostres ecosistemes. A m\u00e9s, moltes esp\u00e8cies s\u00f3n indispensables per controlar les plagues de rosegadors com rates i ratolins.<\/p>\n

\"\"V\u00e0rem concloure que la serp d\u2019aigua encara t\u00e9 un bon lloc on viure a la riera de Vallvidrera a la zona de Can Castellv\u00ed, on conviu amb altres organismes aqu\u00e0tics que ajuden a mantenir l\u2019aigua ben transparent. Aix\u00ed doncs, \u00e9s la nostra responsabilitat ajudar a preservar aquest tipus d\u2019h\u00e0bitats i minimitzar el nostre impacte si volem mantenir-los nets.<\/p>\n

A m\u00e9s, tamb\u00e9 v\u00e0rem aprendre que, davant qualsevol tipus de serp, no cal molestar-la, tan sols deixar que segueixi el seu cam\u00ed a la natura. En el cas que trobem una serp que no desitgem dins el jard\u00ed de casa nostre, podem avisar al tel\u00e8fon d\u2019emerg\u00e8ncies 112 perqu\u00e8 els experts se\u2019n facin c\u00e0rrec.<\/p>\n","protected":false},"excerpt":{"rendered":"

El dia 6 de maig de els nens i les nenes de cinqu\u00e8 de l\u2019Escola Els Pins de Cornell\u00e0 de Llobregat varen investigar la qualitat de l\u2019aigua de la riera de Vallvidrera a la zona de La Rierada. Uns dels grups, mentre feia les primeres observacions a la zona de Can Castellv\u00ed, va trobar un […]<\/p>\n","protected":false},"author":3,"featured_media":20564,"comment_status":"open","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,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"default","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":[406,1,347,29],"tags":[],"class_list":["post-20559","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fauna-local","category-general","category-natura","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/20559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=20559"}],"version-history":[{"count":6,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/20559\/revisions"}],"predecessor-version":[{"id":20577,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/20559\/revisions\/20577"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/20564"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=20559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=20559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=20559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}