{"id":13241,"date":"2024-09-12T06:50:13","date_gmt":"2024-09-12T06:50:13","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13241"},"modified":"2024-09-12T06:50:13","modified_gmt":"2024-09-12T06:50:13","slug":"evolution-in-the-worlds-deepest-river","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/natural-history\/evolution-in-the-worlds-deepest-river\/","title":{"rendered":"Evol\u00faci\u00f3 a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1ban: A Kong\u00f3 m\u00e9lys\u00e9geinek felt\u00e9rk\u00e9pez\u00e9se"},"content":{"rendered":"

Evol\u00faci\u00f3 a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1ban<\/h2>\n\n

A Kong\u00f3 m\u00e9lys\u00e9geinek felt\u00e9rk\u00e9pez\u00e9se<\/h2>\n\n

A tud\u00f3sok fejlett technol\u00f3gi\u00e1t haszn\u00e1lnak a Kong\u00f3 foly\u00f3, a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1nak \u00e1ramlatainak \u00e9s m\u00e9lys\u00e9g\u00e9nek felt\u00e9rk\u00e9pez\u00e9s\u00e9re. Ned Gardinier hidrol\u00f3gus \u00e9s Melanie Stiassny ichthiol\u00f3gus vezeti a kutat\u00f3exped\u00edci\u00f3t, abban a rem\u00e9nyben, hogy betekint\u00e9st nyernek abba, a foly\u00f3 egyed\u00fcl\u00e1ll\u00f3 k\u00f6rnyezete mik\u00e9nt form\u00e1lja lak\u00f3inak evol\u00faci\u00f3j\u00e1t.<\/p>\n\n

Endemizmus \u00e9s evol\u00faci\u00f3s akad\u00e1lyok<\/h2>\n\n

A Kong\u00f3 foly\u00f3 rendk\u00edv\u00fcl v\u00e1ltozatos halfajoknak ad otthont, k\u00f6zt\u00fck t\u00f6bb mint 300 olyan fajnak, amely sehol m\u00e1shol a vil\u00e1gon nem tal\u00e1lhat\u00f3. Stiassny \u00fagy v\u00e9li, hogy a foly\u00f3 er\u0151s \u00e1ramlatai \u00e9s m\u00e9ly kanyonjai evol\u00faci\u00f3s akad\u00e1lyokk\u00e9nt szolg\u00e1lnak, elszigetelik a popul\u00e1ci\u00f3kat, \u00e9s \u00faj fajok megjelen\u00e9s\u00e9t seg\u00edtik el\u0151.<\/p>\n\n

Genetikai sodr\u00f3d\u00e1s \u00e9s adapt\u00e1ci\u00f3<\/h2>\n\n

Stiassny \u00e9s munkat\u00e1rsai genetikai k\u00fcl\u00f6nbs\u00e9geket figyeltek meg er\u0151s \u00e1ramlatok \u00e1ltal elv\u00e1lasztott halpopul\u00e1ci\u00f3k k\u00f6z\u00f6tt, m\u00e9g ugyanazon foly\u00f3rendszeren bel\u00fcl is. Ez arra utal, hogy a v\u00edz a g\u00e9nek \u00e1raml\u00e1s\u00e1nak hat\u00e9kony akad\u00e1lya lehet, ami lehet\u0151v\u00e9 teszi a popul\u00e1ci\u00f3k sz\u00e1m\u00e1ra, hogy id\u0151vel alkalmazkodjanak a saj\u00e1t \u00e9l\u0151helyeikhez.<\/p>\n\n

A Kong\u00f3 v\u00edz alatti v\u00edzes\u00e9se<\/h2>\n\n

Gardiner csapata egy v\u00edz alatti v\u00edzes\u00e9st fedezett fel a Kong\u00f3 foly\u00f3ban, ahol az \u00e1raml\u00e1s f\u00fcgg\u0151legesen zuhan egy m\u00e9ly kanyonba. Ez a v\u00edzes\u00e9s egy \u00f6rv\u00e9nyt hoz l\u00e9tre a foly\u00e1s fels\u0151 r\u00e9sz\u00e9n, amely potenci\u00e1lis \u00e9l\u0151helyet biztos\u00edt a vak s\u00fcg\u00e9rek sz\u00e1m\u00e1ra, amelyek a foly\u00f3 m\u00e9ly\u00e9nek s\u00f6t\u00e9tj\u00e9ben val\u00f3 t\u00fal\u00e9l\u00e9sre fejl\u0151dtek.<\/p>\n\n

A halak alkalmazkod\u00e1sa a foly\u00f3viszonyokhoz<\/h2>\n\n

Stiassny kutat\u00e1sa felt\u0171n\u0151 alkalmazkod\u00e1sokat t\u00e1rt fel a Kong\u00f3 foly\u00f3 halai k\u00f6z\u00f6tt. Az elef\u00e1nthalaknak hossz\u00fa, hengeres orruk van a m\u00e9ly kavicsban val\u00f3 t\u00e1pl\u00e1l\u00e9kkeres\u00e9shez, m\u00edg m\u00e1s fajoknak r\u00f6vid, k\u00f6v\u00e9r orruk van az alg\u00e1kkal bor\u00edtott k\u0151zetekr\u0151l val\u00f3 t\u00e1pl\u00e1lkoz\u00e1shoz. Ezek az alkalmazkod\u00e1sok bizony\u00edtj\u00e1k a term\u00e9szetes szelekci\u00f3 erej\u00e9t a szervezetek tulajdons\u00e1gainak k\u00f6rnyezet\u00fckh\u00f6z val\u00f3 igaz\u00edt\u00e1s\u00e1ban.<\/p>\n\n

Term\u00e9szetv\u00e9delmi k\u00f6vetkezm\u00e9nyek<\/h2>\n\n

A Kong\u00f3 foly\u00f3 egyedi \u00f6kosziszt\u00e9m\u00e1ja \u00e9s magas endemizmus miatt kiemelt fontoss\u00e1g\u00fa a term\u00e9szetv\u00e9delmi er\u0151fesz\u00edt\u00e9sek szempontj\u00e1b\u00f3l. Az ezt a biodiverzit\u00e1st form\u00e1l\u00f3 evol\u00faci\u00f3s folyamatok meg\u00e9rt\u00e9se kulcsfontoss\u00e1g\u00fa a foly\u00f3 t\u00f6r\u00e9keny egyens\u00faly\u00e1nak meg\u0151rz\u00e9s\u00e9hez \u00e9s rendk\u00edv\u00fcli halfajai fennmarad\u00e1s\u00e1nak biztos\u00edt\u00e1s\u00e1hoz.<\/p>\n\n

Felt\u00e1r\u00e1s \u00e9s felfedez\u00e9s<\/h2>\n\n

A kutat\u00f3exped\u00edci\u00f3 folytatja a Kong\u00f3 foly\u00f3 vizsg\u00e1lat\u00e1t, mint\u00e1kat gy\u0171jt \u00e9s adatokat gy\u0171jt, hogy tov\u00e1bb b\u0151v\u00edts\u00e9k ennek a leny\u0171g\u00f6z\u0151 \u00f6kosziszt\u00e9m\u00e1nak a meg\u00e9rt\u00e9s\u00e9t. Stiassny \u00e9s Gardiner munk\u00e1ja r\u00e1vil\u00e1g\u00edt a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1nak rejtett m\u00e9lys\u00e9geire, \u00e9s felt\u00e1rja a k\u00fcl\u00f6nleges lak\u00f3inak kialakul\u00e1s\u00e1ban szerepet j\u00e1tsz\u00f3 figyelemre m\u00e9lt\u00f3 evol\u00faci\u00f3s er\u0151ket.<\/p>","protected":false},"excerpt":{"rendered":"

Evol\u00faci\u00f3 a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1ban A Kong\u00f3 m\u00e9lys\u00e9geinek felt\u00e9rk\u00e9pez\u00e9se A tud\u00f3sok fejlett technol\u00f3gi\u00e1t haszn\u00e1lnak a Kong\u00f3 foly\u00f3, a vil\u00e1g legm\u00e9lyebb foly\u00f3j\u00e1nak \u00e1ramlatainak \u00e9s m\u00e9lys\u00e9g\u00e9nek felt\u00e9rk\u00e9pez\u00e9s\u00e9re. Ned Gardinier hidrol\u00f3gus \u00e9s Melanie…<\/p>\n","protected":false},"author":2,"featured_media":24315,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[244],"tags":[395,17845,136,1920,17846,17847],"class_list":["post-13241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-natural-history","tag-biodiversity","tag-congo-river","tag-evolution","tag-fish","tag-hydrology","tag-ichthyology"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/13241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=13241"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/13241\/revisions"}],"predecessor-version":[{"id":24316,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/13241\/revisions\/24316"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media\/24315"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=13241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=13241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=13241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}