{"id":2252,"date":"2020-01-05T16:58:09","date_gmt":"2020-01-05T15:58:09","guid":{"rendered":"https:\/\/g3-guides.com\/\/\/rios\/"},"modified":"2025-12-14T14:20:55","modified_gmt":"2025-12-14T13:20:55","slug":"rivers-in-andalusia","status":"publish","type":"post","link":"https:\/\/g3-guides.com\/en\/blog\/rivers-in-andalusia\/","title":{"rendered":"Rivers in Andalusia"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>A network that connects territories and carries the source of life and biodiversity.<\/strong><\/h3>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/IMG_5373-e1603399847940.jpg\" class=\"lazyload\" alt=\"Oleanders, rivers in Andalusia\" title=\"\"><noscript><img decoding=\"async\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/IMG_5373-e1603399847940.jpg\" alt=\"Oleanders, rivers in Andalusia\" title=\"\"><\/noscript><figcaption class=\"wp-element-caption\"><em>The oleanders (Nerium oleander), with their magnificent flowering, are spontaneous shrubs typical of the banks of the rivers in Andalusia, of temporary character.<\/em><\/figcaption><\/figure>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/es.wikipedia.org\/wiki\/Hidrograf%C3%ADa_de_Andaluc%C3%ADa\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>hydrographic network of Andalusia<\/strong><\/a> is mainly organized around the depression of the <strong>Guadalquivir river<\/strong> that flows into the Atlantic Ocean. Curiously, there is some controversy about the location of the source of this river, officially located in the Sierra de Cazorla (Ja\u00e9n). Its main tributaries are the <g id=\"gid_3\">Guadiana Menor, Genil and Guadalimar rivers<\/g>. The <g id=\"gid_4\">Atlantic basin<\/g> also receives the <g id=\"gid_5\">Guadiana river<\/g>, which flows to the north of Andalusia and borders Portugal, and the <g id=\"gid_6\">Odiel, Guadalete and Barbate rivers<\/g>. The <strong>Mediterranean basin<\/strong> has shorter rivers: <strong>Guadiaro, Guadalhorce, Guadalfeo, Andarax, Almanzora<\/strong> and <strong>Segura<\/strong>.      <\/p>\n<\/blockquote>\n\n<p class=\"wp-block-paragraph\">Andalusia is characterized by a semi-arid Mediterranean climate that causes a <strong>strong evaporation of water (low water)<\/strong> in the middle and upper reaches. Our region is distinguished by the numerical importance of<strong> temporary streams<\/strong> and wadis (the latter only drain rainwater). Even so, the lower reaches of the main rivers are permanent.    <\/p>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/P1040988.jpg\" alt=\"\" class=\"wp-image-14559 lazyload\" title=\"P1040988\"><noscript><img decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/P1040988.jpg\" alt=\"\" class=\"wp-image-14559\" title=\"P1040988\" srcset=\"https:\/\/g3-guides.com\/wp-content\/uploads\/2020\/10\/P1040988.jpg 1024w, https:\/\/g3-guides.com\/wp-content\/uploads\/2020\/10\/P1040988-380x253.jpg 380w, https:\/\/g3-guides.com\/wp-content\/uploads\/2020\/10\/P1040988-800x533.jpg 800w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><figcaption class=\"wp-element-caption\"><em>Meander of the Genil river upstream of a dam: the obstruction of the riverbed has allowed the development of interesting aquatic vegetation.<\/em><\/figcaption><\/figure>\n\n<p class=\"wp-block-paragraph\">To highlight the <strong>omnipresence of reservoirs<\/strong> built throughout the hydrographic network and where invasive allochthonous fish thrive.  <\/p>\n\n<p class=\"wp-block-paragraph\"><strong>The rivers, water in movement&#8230;<\/strong> Gushing in the springs; lit by the rocks and gallant of the mountains; fine threads that run between rocks and forests; bed of insects and winged nymphs; joy of summer; path that takes strength and breadth after the rains; solemn masses of water, calm but ready to overflow; they rush towards the sea without fatality; they engender marshes and estuaries; they nourish the sea. &#8230; <strong>Sources of life<\/strong>. <\/p>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/P1160132-e1603402018702.jpg\" class=\"lazyload\" alt=\"\" title=\"P1160132\"><noscript><img decoding=\"async\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/P1160132-e1603402018702.jpg\" alt=\"\" title=\"P1160132\"><\/noscript><figcaption class=\"wp-element-caption\"><em>The chemistry of the Tinto River is one of the strangest and most fascinating in Europe.<\/em><\/figcaption><\/figure>\n\n<p class=\"wp-block-paragraph\">The <strong>Guadiaro basin, with the rivers Genal and Hozgarganta<\/strong>; several <strong>streams of the Costa del Sol<\/strong>; the <strong>Pedroches stream<\/strong> near the city of Cordoba, and some others, stand out especially for their naturalness and biological interest. Mention an extraordinary river, the <g id=\"gid_3\">Tinto<\/g>, characterized by its <g id=\"gid_4\">very acidic waters of pH 2<\/g>, where only mats of extremophilic bacteria can develop. No less interesting are the <g id=\"gid_5\">salty streams<\/g> of the Guadalquivir depression, which are also a very rare example in the European continent and host an important biodiversity of endemic aquatic coleoptera. These streams are usually better preserved because the salinity of their waters and their borders limits agriculture.     <\/p>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/IMG_0414-e1603401992997.jpg\" class=\"lazyload\" alt=\"\" title=\"IMG_0414\"><noscript><img decoding=\"async\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/10\/IMG_0414-e1603401992997.jpg\" alt=\"\" title=\"IMG_0414\"><\/noscript><figcaption class=\"wp-element-caption\"><em>Cross the Guadalquivir River in the city of Cordoba and its famous millenary Roman bridge.<\/em><\/figcaption><\/figure>\n\n<p class=\"wp-block-paragraph\">To highlight the <strong>native fish<\/strong>, many of them endemic and adapted to the conditions of the temporary streams; the <strong>benthic invertebrates<\/strong> that are bioindicators of water quality; the <strong>dragonflies of flowing waters<\/strong>, very abundant in the middle reaches, although the interesting <strong>pale gonphus<\/strong><em>(Onychogomphus costae<\/em>) appears mainly in the lower reaches. Among the vertebrates, <g id=\"gid_5\">the <g id=\"gid_6\">otter<\/g> (<g id=\"gid_7\">Lutra lutra<\/g>), increasingly common<\/g>, and the riparian passerine birds: the <g id=\"gid_8\">Berber wading bird<\/g><g id=\"gid_9\">(Iduna opaca<\/g>) and the<g id=\"gid_10\"> Penduline Tit<\/g><g id=\"gid_11\">(Remiz pendulina<\/g>). As for the headwaters of the streams, they offer very good breeding pools for amphibians and especially <strong>salamanders<\/strong><em>(Salamandra salamandra<\/em>).    <\/p>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2019\/12\/dog-walker-11.png\" alt=\"\" class=\"wp-image-125 lazyload\" title=\"\"><noscript><img decoding=\"async\" width=\"1349\" height=\"95\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2019\/12\/dog-walker-11.png\" alt=\"\" class=\"wp-image-125\" title=\"\" srcset=\"https:\/\/g3-guides.com\/wp-content\/uploads\/2019\/12\/dog-walker-11.png 1349w, https:\/\/g3-guides.com\/wp-content\/uploads\/2019\/12\/dog-walker-11-380x27.png 380w, https:\/\/g3-guides.com\/wp-content\/uploads\/2019\/12\/dog-walker-11-800x56.png 800w\" sizes=\"(max-width: 1349px) 100vw, 1349px\" \/><\/noscript><\/figure>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>2007: a full year of aquatic insect surveys<\/strong> (+200 field days) in the best and worst streams of Andalusia.<\/p>\n<\/blockquote>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/01\/P1010475_1-e1579081657567.jpg\"><\/a><\/p>\n\n<h2 class=\"wp-block-heading has-accent-1-color has-text-color has-link-color wp-elements-1\"><strong>Wells in temporary Mediterranean rivers<\/strong><\/h2>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/01\/P1010475_1-e1579081657567.jpg\" class=\"lazyload\" alt=\"\" title=\"\"><noscript><img decoding=\"async\" src=\"https:\/\/g3-guides.com\/\/\/wp-content\/uploads\/2020\/01\/P1010475_1-e1579081657567.jpg\" alt=\"\" title=\"\"><\/noscript><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"wp-block-paragraph\">During the summer period, a drying phase characterizes the middle streams and headwaters of Mediterranean rivers and streams. The deepest and most impermeable areas of the minor bed retain water and form basins, true oases for aquatic fauna and flora. <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A network that connects territories and transports the resource that is the source of life and biodiversity.<br \/>\nThe rivers in Andalusia (lotic epicontinental waters). <\/p>\n","protected":false},"author":2,"featured_media":26608,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[594],"tags":[],"class_list":["post-2252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecosystems-in-andalusia"],"_links":{"self":[{"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/posts\/2252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/comments?post=2252"}],"version-history":[{"count":0,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/posts\/2252\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/media\/26608"}],"wp:attachment":[{"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/media?parent=2252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/categories?post=2252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/g3-guides.com\/en\/wp-json\/wp\/v2\/tags?post=2252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}