{"id":5005516,"date":"2006-12-08T17:38:00","date_gmt":"2006-12-08T16:38:00","guid":{"rendered":"https:\/\/criticalbiomass.blog.hu\/2006\/12\/08\/denever_kulonlegessegek"},"modified":"2006-12-08T17:38:00","modified_gmt":"2006-12-08T16:38:00","slug":"denever_kulonlegessegek","status":"publish","type":"post","link":"https:\/\/criticalbiomass.hu\/?p=5005516","title":{"rendered":"Denev\u00e9r k\u00fcl\u00f6nlegess\u00e9gek"},"content":{"rendered":"

\n
\nMire j\u00f3 a testhosszunk 150%-\u00e1t el\u00e9r\u0151 nyelv? P\u00e9ld\u00e1ul exkluz\u00edv t\u00e1pl\u00e1l\u00e9kforr\u00e1st biztos\u00edt, m\u00e9ly kelyh\u0171 vir\u00e1gok form\u00e1j\u00e1ban.\n<\/p>\n

\nA napjait az ecuadori es\u0151erd\u0151ben tenget\u0151 nekt\u00e1rdenev\u00e9r (Anoura fistulata<\/i>) eset\u00e9ben legal\u00e1bb is ez a helyzet. Ez a denev\u00e9r a speci\u00e1lis beporz\u00f3ja a k\u00e9pen l\u00e1that\u00f3 s\u00e1rga vir\u00e1g\u00fa Centropogon nigricans<\/i>-nak, szolg\u00e1ltat\u00e1sai\u00e9rt cser\u00e9ben pedig j\u00f3form\u00e1n egyed\u00fcli \u00e9lvez\u0151je a n\u00f6v\u00e9ny nekt\u00e1r\u00e1nak. A vir\u00e1gkehely m\u00e9lys\u00e9ge, ill. a denev\u00e9r nyelvhossza val\u00f3sz\u00edn\u0171leg p\u00e1rhuzamosan alakult ki, de a denev\u00e9r eset\u00e9ben egy ilyen hossz\u00fas\u00e1g\u00fa nyelv t\u00e1rol\u00e1s\u00e1hoz k\u00fcl\u00f6nleges megold\u00e1sokra volt sz\u00fcks\u00e9g. Maga a nyelv a sz\u00e1j\u00fcregen k\u00edv\u00fcl, a mell\u00fcreg k\u00fcl\u00f6nleges bugyr\u00e1ban helyezkedik el, \u00e9s a kiny\u00fajt\u00e1s\u00e1t szab\u00e1lyoz\u00f3 izom (bal oldalon vil\u00e1gosk\u00e9kkel jel\u00f6lve) pedig a szegycsont legh\u00e1ts\u00f3bb pontj\u00e1n\u00e1l r\u00f6gz\u00fcl.\n<\/p>\n

\n(A konvergens evol\u00faci\u00f3 sz\u00e9p p\u00e9ld\u00e1jak\u00e9nt, a hangyaev\u0151 tobzoska saj\u00e1t hossz\u00fa nyelv\u00e9t nagyon hasonl\u00f3 m\u00f3don "t\u00e1rolja".)\n<\/p>\n


\n
\n<\/center><\/p>\n

\n
\n\u00c9s ha m\u00e1r denev\u00e9rek. A Nature<\/i> aktu\u00e1lis sz\u00e1m\u00e1ban egy m\u00e1sik cikk is tal\u00e1lhat\u00f3, amely a denev\u00e9rek t\u00e1j\u00e9koz\u00f3d\u00e1s\u00e1t firtatja. Ugyanis hasonl\u00f3an a postagalambokhoz, sz\u00e1mos denev\u00e9r faj is h\u00edresen j\u00f3 t\u00e1j\u00e9koz\u00f3d\u00f3. A k\u00e9rd\u00e9s term\u00e9szetesen, hogy mi seg\u00edti \u0151ket: terept\u00e1rgyak, vagy k\u00e9pesek valamilyen bels\u0151 ir\u00e1nyt\u0171t haszn\u00e1lni. Ennek eld\u00f6nt\u00e9s\u00e9re szellemes k\u00eds\u00e9rletet terveztek nagy barna denev\u00e9rek (Eptesicus fuscus<\/i>) <\/i>felhaszn\u00e1l\u00e1s\u00e1val. Az \u00e1llatokat, lak\u00f3hely\u00fckt\u0151l p\u00e1r kilom\u00e9terre, olyan m\u00e1gneses t\u00e9rbe helyezt\u00e9k, amely jelent\u0151sen eltorz\u00edtja a F\u00f6ld saj\u00e1t m\u00e1gneses ter\u00e9t. K\u00f6zben a denev\u00e9rek l\u00e1thatt\u00e1k, hogy merre megy le a nap, \u00edgy ha net\u00e1n ez ut\u00f3bbi adja meg sz\u00e1mukra a helyes ir\u00e1nyt, a m\u00e1gneses t\u00e9r v\u00e1ltoztatgat\u00e1sa nem kellene befoly\u00e1solja a t\u00e1j\u00e9koz\u00f3d\u00e1sukat. Ez azonban a jelek szerint nincs \u00edgy, hiszen a m\u00e1gneses t\u00e9rrel "kezelt" \u00e1llatok a mesters\u00e9ges t\u00e9r \u00e1ltal meghat\u00e1rozott ir\u00e1nyba mentek (k\u00e9k illetve piros nyilak) a val\u00f3di haza\u00fattal szemben (z\u00f6ld sz\u00edn). Ez pedig igen er\u0151s \u00e9rv a m\u00e1gneses t\u00e9ren alapul\u00f3 t\u00e1j\u00e9koz\u00f3d\u00e1s mellett. (A teljes t\u00f6rt\u00e9nethez tartozik az is, hougy n\u00e9h\u00e1ny \u00e1llat \u00fagy \u00f6t kilom\u00e9ter ut\u00e1n korrig\u00e1lt, \u00edgy feltehet\u0151, hogy nem csak a m\u00e1gneses t\u00e9rre hagyatkoznak.)\n<\/p>\n

\nUltrahang \u00e9s m\u00e1gneses t\u00e9r: a denev\u00e9rek nem el\u00e9gednek meg b\u00e9na technikai megold\u00e1sokkal…\n<\/p>\n

\n


\nMuchala, N<\/strong> (2006) Nectar bat stows huge tongue in its rib cage. Nature<\/i> 444<\/strong>: 701-702.
\nHolland, RA, Thorup, K, Vonhof, MJ, Cochran, WW, Wikelskil, M<\/strong> (2006) Navigation: Bat orientation using Earth's magnetic field. Nature<\/i> 444<\/strong>: 702.
\n<\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

Mire j\u00f3 a testhosszunk 150%-\u00e1t el\u00e9r\u0151 nyelv? P\u00e9ld\u00e1ul exkluz\u00edv t\u00e1pl\u00e1l\u00e9kforr\u00e1st biztos\u00edt, m\u00e9ly kelyh\u0171 vir\u00e1gok form\u00e1j\u00e1ban. A napjait az ecuadori es\u0151erd\u0151ben tenget\u0151 nekt\u00e1rdenev\u00e9r (Anoura fistulata) eset\u00e9ben legal\u00e1bb is ez a helyzet. Ez a denev\u00e9r a speci\u00e1lis beporz\u00f3ja a k\u00e9pen l\u00e1that\u00f3 s\u00e1rga … Egy kattint\u00e1s ide a folytat\u00e1shoz…. →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5005516"}],"collection":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5005516"}],"version-history":[{"count":0,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5005516\/revisions"}],"wp:attachment":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5005516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5005516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5005516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}