{"id":64701,"date":"2025-12-15T04:49:10","date_gmt":"2025-12-15T04:49:10","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/64701\/"},"modified":"2025-12-15T04:49:10","modified_gmt":"2025-12-15T04:49:10","slug":"punaselg-ogijal-on-tapne-rannuplaan-loodus","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/64701\/","title":{"rendered":"Punaselg-\u00f5gijal on t\u00e4pne r\u00e4nnuplaan | Loodus"},"content":{"rendered":"<p>Punaselg-\u00f5gija on tubli linnuke, kes r\u00e4ndab igal talvel tuhandete kilomeetrite kaugusele l\u00f5unasse.<\/p>\n<p>Rootsi ja Taani linnuteadlaste v\u00e4rske uuring lubab sedastada, et ta r\u00e4nne toimub m\u00e4rkimisv\u00e4\u00e4rse t\u00e4psuse ja korrap\u00e4raga.<\/p>\n<p>Sissel Sj\u00f6berg Lundi \u00dclikoolist ja ta kolleegid kirjutavad Londoni Kuningliku Seltsi <a href=\"https:\/\/royalsocietypublishing.org\/rspb\/article\/292\/2057\/20250958\/234763\/The-structure-of-the-annual-migratory-flight\" target=\"_blank\" rel=\"noopener nofollow\">toimetistes<\/a>, et igal linnul on justkui isiklik t\u00e4pne, selgete alajaotistega reisiplaan. Kuid ka isendite vaheline varieeruvus reisiplaanide \u00fcksikasjades on \u00fcllatavalt v\u00e4ike.<\/p>\n<p>Uuringus kasutatud uus seiretehnika aitas m\u00e4\u00e4rata lindude asukohta t\u00e4pselt ja l\u00e4bi aasta.<\/p>\n<p><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/www.europesays.com\/ee\/wp-content\/uploads\/2025\/09\/558447h58e7.png\"\/><\/p>\n<p>Sj\u00f6berg ja ta kaaslased sidusid hulgiandurilised m\u00f5\u00f5teseadmed 15 punaselg-\u00f5gija seljale. Vaid veidi \u00fcle \u00fche grammi kaaluvad seadeldised kogusid r\u00e4nnete kohta hulga \u00fcksikasjalikke andmeid, sealhulgas linnu liikumise, \u00f5hutemperatuuri, \u00f5hur\u00f5hu ja valgusolude kohta.<\/p>\n<p>\u00dche v\u00f5i kahe aasta p\u00e4rast p\u00fc\u00fcti linnud uuesti kinni ja vaadati kogutud andmed l\u00e4bi.<\/p>\n<p>Muu hulgas selgus, et kevadisel tagasilennul talvituspaigast L\u00f5una-Aafrikas pesitsuspaika Taanis v\u00f5i Sk\u00e5nes erineb isendite lennuaeg ainult kuni kuus protsenti.<\/p>\n<p>See on t\u00e4helepanuv\u00e4\u00e4rne saavutus, arvestades, et enam kui 11 tuhande kilomeetri pikkusel ja kaks kuud v\u00e4ltaval r\u00e4ndel on lennu\u00f6id 43 ja lennutunde keskmiselt 270. Ka oli iga\u00f6ine lennuaeg jaotatud etappideks, mis olid k\u00f5igil isenditel peaaegu \u00fchesugused.<\/p>\n<p>S\u00fcgisesel r\u00e4ndel oli isendite vahel lennu kestvuses ja r\u00e4nde alguse ajastuses erinevusi siiski rohkem kui kevadel.<\/p>\n<p>Uuringutulemused aitavad teadlaste s\u00f5nul loodetavasti edaspidi paremini m\u00f5ista ka seda, milline on geneetika roll punaselg-\u00f5gijate, nende suhteliselt v\u00e4ikeste lindude hiigelpikkade teekondade kujundamisel \u00fcle mandrite.<\/p>\n<p>V\u00f5ib selguda, et vanematelt geeniinfo kaudu saadud programm, mis annab ette r\u00e4nde ajakava ja lennusuuna, on palju keerukam kui seni arvata osatud. See programm on t\u00f5en\u00e4oliselt ka keerukalt tagasisidestatud geograafiliste, ilmastikuliste ja toiduleidumuslike oludega, mida lind r\u00e4nnuteel kohtab.<\/p>\n<p>Teadusuudised on Vikerraadios eetris esmasp\u00e4evast reedeni ca kell 8.35 ja laup\u00e4eval ca kell 8.25.<\/p>\n","protected":false},"excerpt":{"rendered":"Punaselg-\u00f5gija on tubli linnuke, kes r\u00e4ndab igal talvel tuhandete kilomeetrite kaugusele l\u00f5unasse. Rootsi ja Taani linnuteadlaste v\u00e4rske uuring&hellip;\n","protected":false},"author":2,"featured_media":64702,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[26,27,37,33,35,34,36,31,32,21,14677,28,29,32826,95,19,25,32827,32825,23,24,22,20,30,92,93,94],"class_list":{"0":"post-64701","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maailm","8":"tag-breaking-news","9":"tag-breakingnews","10":"tag-ee","11":"tag-eesti","12":"tag-eesti-keel","13":"tag-estonia","14":"tag-estonian","15":"tag-featured-news","16":"tag-featurednews","17":"tag-headlines","18":"tag-korrapara","19":"tag-latest-news","20":"tag-latestnews","21":"tag-lindude-ranne","22":"tag-maailm","23":"tag-news","24":"tag-populaarseimad-lood","25":"tag-punaselg-ogija","26":"tag-tapsus","27":"tag-top-stories","28":"tag-topstories","29":"tag-uldised-uudised","30":"tag-uudised","31":"tag-viimased-uudised","32":"tag-world","33":"tag-world-news","34":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/115721782258851336","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/64701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=64701"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/64701\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/64702"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=64701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=64701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=64701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}