{"id":2200,"date":"2013-01-29T06:13:05","date_gmt":"2013-01-29T04:13:05","guid":{"rendered":"http:\/\/wildtravel.ro\/bird\/rata-mare-anas-platyrhynchos-l\/"},"modified":"2023-02-11T14:52:50","modified_gmt":"2023-02-11T12:52:50","slug":"rata-mare-anas-platyrhynchos-l","status":"publish","type":"bird","link":"https:\/\/wildtravel.ro\/ro\/bird\/rata-mare-anas-platyrhynchos-l\/","title":{"rendered":"Rata mare  (Anas platyrhynchos )"},"content":{"rendered":"<p>Rata mare este o specie de ra\u021b\u0103 de talie mare. Ca \u0219i la toate speciile de ra\u021be, dimorfismul sexual este accentuat. Femela are un colorit general maroniu, marmorat, perfect pentru camuflaj \u00een timpul clocirii ou\u0103lor. Masculul este viu colorat, capul \u0219i g\u00e2tul verde metalic, inel sub\u021bire alb la baza g\u00e2tului, pieptul castaniu. Corpul cu nuan\u021be de gri, mai \u00eenchise dorsal, iar penele din jurul cozii, negre. Ambele sexe au oglinda (grupul de pene colorat din arip\u0103) de culoare albastru \u00eenchis \u00eencadrat de dou\u0103 dungi albe. Lungimea corpului este de 50-60 cm \u0219i are o greutate medie de 735-1800 g. Anvergura aripilor este cuprins\u0103 \u00eentre 81-95 cm.<\/p>\n<p>Numele de gen (<em>Anas<\/em>) este denumirea latin\u0103 a ra\u021belor, iar numele de specie provine din cuvintele grece\u0219ti <em>platys <\/em>\u2013 lat \u0219i <em>rinhos <\/em>\u2013 cioc\/bot, cu referire la picioarele ciocul lat al p\u0103s\u0103rii.<\/p>\n<p><strong>Distribu\u021bie<\/strong><br \/>\nSpecia cuib\u0103re\u0219te pe o arie foarte larg\u0103, \u00een toat\u0103 emisfera nordic\u0103, din zonele cu clim\u0103 mediteranean\u0103, p\u00e2n\u0103 \u00een zonele boreale. \u00cen Rom\u00e2nia specia cuib\u0103re\u0219te pe \u00eentreg teritoriul \u021b\u0103rii, din zona Deltei Dun\u0103rii, p\u00e2n\u0103 \u00een zonele submontane.<br \/>\n<strong>Fenologie<\/strong><br \/>\nSpecia cuib\u0103re\u0219te \u00een Rom\u00e2nia, fiind prezent\u0103 la noi tot timpul anului. Prezen\u021ba este constant\u0103, \u00eens\u0103 difer\u0103 ca distribu\u021bie \u0219i ca efective. \u00cen perioada de cuib\u0103rit este mult dispersat\u0103, iar toamna \u0219i iarna se adun\u0103 \u00een grupuri mari pe suprafe\u021bele acvatice care nu \u00eenghea\u021b\u0103. Num\u0103rul de exemplare este mai mare, fiind suplimentat de ra\u021bele nordice care vin s\u0103 ierneze \u00een Rom\u00e2nia.<img fetchpriority=\"high\" decoding=\"async\" class=\"alignright\" src=\"http:\/\/wildtravel.ro\/wp-content\/uploads\/2013\/01\/olp.jpg\" width=\"578\" height=\"273\"><br \/>\n<strong>Habitate<\/strong><br \/>\nEste foarte r\u0103sp\u00e2ndit\u0103 \u0219i nepreten\u021bioas\u0103, \u00een perioada de cuib\u0103rit ocup\u0103 orice fel de habitat acvatic disponibil, de la marile \u00eentinderi acvatice (Delta Dun\u0103rii), lacurile izolate sau malurile r\u00e2urilor, p\u00e2n\u0103 la canalele sau lacurile de agrement din ora\u0219e. Uneori cuib\u0103re\u0219te \u0219i la distan\u021be mai mari de suprafe\u021bele acvatice. \u00cen sezonul de iarn\u0103 se adun\u0103 \u00een numere mari, pe suprafe\u021bele de ap\u0103 deschise, la \u00eenceput mult mai dispersat, iar apoi, concentrat pe acele suprafe\u021be care nu \u00eenghea\u021b\u0103 (\u00een general lacurile mari de baraj).<\/p>\n<p><strong>Alte informa\u021bii<\/strong><br \/>\nDin aceast\u0103 specie provin majoritatea raselor de ra\u021be domestice. Primele domesticiri au avut loc \u00een Asia de Sud-Est \u00een neolitic. Adeseori au loc \u00eemperecheri \u00eentre popula\u021biile s\u0103lbatice \u0219i exemplarele domestice, astfel c\u0103 exist\u0103 un flux genetic continuu \u00eentre cele dou\u0103 categorii.<\/p>\n<p>Popula\u021bia global\u0103 este estimat\u0103 la peste 19 000 000 de indivizi. Cea european\u0103 este estimat\u0103 la 2 850 000 &#8211; 4 610 000 de perechi. \u00cen Rom\u00e2nia, estim\u0103rile arat\u0103 o popula\u021bie de aproximativ 61 000 &#8211; 75 000 de perechi cuib\u0103ritoare. Av\u00e2nd o popula\u021bie at\u00e2t de mare \u0219i un teritoriu de r\u0103sp\u00e2ndire imens, specia este clasificat\u0103 ca \u201dRisc sc\u0103zut\u201d. Tendin\u021ba popula\u021bional\u0103 \u00een Europa este considerat\u0103 stabil\u0103. \u00cen Rom\u00e2nia, deocamdat\u0103, tendin\u021ba popula\u021bional\u0103 este necunoscut\u0103.<\/p>\n<p>Perioada de reproducere poate \u00eencepe devreme, chiar \u00een luna februarie, iar depunerea ou\u0103lor are loc \u00eencep\u00e2nd cu a doua parte a lunii martie &#8211; \u00eenceputul lunii aprilie. Femela depune de obicei 9-13 ou\u0103, pe care le cloce\u0219te singur\u0103 mascul uneori ap\u0103r\u00e2nd teritoriul. Incubarea dureaz\u0103 26-28 de zile. Puii devin zbur\u0103tori la 50-60 de zile. P\u0103s\u0103rile cuib\u0103resc izolat, uneori \u0219i \u00een grupuri laxe, amplas\u00e2nd cuiburile la c\u00e2\u021biva metri distan\u021b\u0103. Cuiburile sunt amplasate \u00een apropierea apei, direct pe sol, ascunse \u00een vegeta\u021bie; uneori poate cuib\u0103ri \u0219i \u00een scorburi sau pe cl\u0103diri.<\/p>\n<p>Este amenin\u021bat\u0103 de degradarea \u0219i dispari\u021bia zonelor umede, poluarea habitatelor. Arderea stufului sau recoltarea acestuia \u00een perioade nepotrivite, constituie de asemenea amenin\u021b\u0103ri serioase. Fiind o specie abundent\u0103, se v\u00e2neaz\u0103 intens, \u00eempu\u0219carea \u0219i otr\u0103virea cu plumb fiind de asemenea cauze ale mortalit\u0103\u021bii.<\/p>\n<p>foto: Mihai Baciu<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rata mare este o specie de ra\u021b\u0103 de talie mare. Ca \u0219i la toate speciile de ra\u021be, dimorfismul sexual este accentuat. Femela are un colorit general maroniu, marmorat, perfect pentru camuflaj \u00een timpul clocirii ou\u0103lor. Masculul este viu colorat, capul \u0219i g\u00e2tul verde metalic, inel sub\u021bire alb la baza g\u00e2tului, pieptul castaniu. Corpul cu nuan\u021be [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":36194,"template":"","meta":{"_acf_changed":false},"categories":[],"tags":[],"birdwatching":[],"class_list":["post-2200","bird","type-bird","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rata mare (Anas platyrhynchos ) - wild travel in Delta Dunarii<\/title>\n<meta name=\"description\" content=\"Rata mare este o specie de ra\u021b\u0103 de talie mare. 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