L\u00e1\u010dky, maso\u017erav\u00e9 z\u00e1zraky rostlinn\u00e9 \u0159\u00ed\u0161e, vyvinuly pozoruhodnou strategii, jak p\u0159il\u00e1kat sv\u016fj prim\u00e1rn\u00ed zdroj potravy: netop\u00fdry. Na rozd\u00edl od jin\u00fdch l\u00e1\u010dek, kter\u00e9 spol\u00e9haj\u00ed na chyt\u00e1n\u00ed hmyzu, vyvinuly n\u011bkter\u00e9 druhy, jako nap\u0159\u00edklad Nepenthes hemsleyana, jedine\u010dnou schopnost odr\u00e1\u017eet echoloka\u010dn\u00ed vol\u00e1n\u00ed netop\u00fdr\u016f a nav\u00e1d\u011bt je k jejich \u00fato\u010di\u0161ti bohat\u00e9mu na \u017eiviny.<\/p>\n\n
Tajemstv\u00ed spo\u010d\u00edv\u00e1 v neobvykl\u00e9 zadn\u00ed st\u011bn\u011b l\u00e1\u010dky, kter\u00e1 p\u0159ipom\u00edn\u00e1 parabolickou misku. Tato zak\u0159iven\u00e1 a prot\u00e1hl\u00e1 struktura funguje jako p\u0159irozen\u00fd reflektor a odr\u00e1\u017e\u00ed zp\u011bt sonarov\u00e9 sign\u00e1ly netop\u00fdr\u016f s pozoruhodnou p\u0159esnost\u00ed. Strategick\u00fdm um\u00edst\u011bn\u00edm t\u011bchto reflektor\u016f l\u00e1\u010dka vytv\u00e1\u0159\u00ed akustick\u00fd maj\u00e1k, kter\u00fd l\u00e1k\u00e1 netop\u00fdry z velk\u00e9 d\u00e1lky.<\/p>\n\n
Kdy\u017e netop\u00fd\u0159i odpo\u010d\u00edvaj\u00ed v ochrann\u00e9m objet\u00ed l\u00e1\u010dky, ne\u00famysln\u011b poskytuj\u00ed cennou slu\u017ebu: trus bohat\u00fd na dus\u00edk. Tyto v\u00fdkaly, bohat\u00e9 na nezbytn\u00e9 \u017eiviny, jsou nezbytn\u00e9 pro r\u016fst a p\u0159e\u017eit\u00ed l\u00e1\u010dky. L\u00e1\u010dka na opl\u00e1tku poskytuje netop\u00fdr\u016fm \u00fakryt a prost\u0159ed\u00ed bohat\u00e9 na \u017eiviny, co\u017e podporuje vz\u00e1jemn\u011b v\u00fdhodn\u00e9 partnerstv\u00ed.<\/p>\n\n
Aby ov\u011b\u0159ili roli echolokace v tomto symbiotick\u00e9m vztahu, pou\u017eili v\u011bdci robotickou netop\u00fd\u0159\u00ed hlavu vybavenou reproduktorem a mikrofony. Vyslali ultrazvukov\u00e9 sign\u00e1ly z r\u016fzn\u00fdch sm\u011br\u016f a m\u011b\u0159ili s\u00edlu ozv\u011bn, \u010d\u00edm\u017e prok\u00e1zali \u00fa\u010dinnost parabolick\u00e9 misky l\u00e1\u010dky jako reflektoru echolokace.<\/p>\n\n
Experimenty odhalily, \u017ee netop\u00fd\u0159i d\u00e1vali jasnou p\u0159ednost nemodifikovan\u00fdm reflektor\u016fm, kter\u00e9 vracely jejich vol\u00e1n\u00ed s nejv\u011bt\u0161\u00ed intenzitou a \u010distotou. Tento poznatek nazna\u010duje, \u017ee schopnost l\u00e1\u010dek p\u0159esn\u011b odr\u00e1\u017eet sonarov\u00e9 sign\u00e1ly je z\u00e1sadn\u00ed pro p\u0159il\u00e1k\u00e1n\u00ed netop\u00fdr\u016f a zaji\u0161t\u011bn\u00ed jejich z\u00e1sobov\u00e1n\u00ed \u017eivinami.<\/p>\n\n
Zat\u00edmco Nepenthes hemsleyana pou\u017e\u00edv\u00e1 k p\u0159il\u00e1k\u00e1n\u00ed netop\u00fdr\u016f echolokaci, jin\u00e9 druhy l\u00e1\u010dek vyvinuly alternativn\u00ed strategie. N\u011bkter\u00e9 druhy na Borneu pou\u017e\u00edvaj\u00ed cukernat\u00e9 v\u00fdm\u011b\u0161ky, aby nal\u00e1kaly veverky stromov\u00e9 a krysy, aby z\u016fstaly a zanechaly po sob\u011b trus. Tento vztah se v\u0161ak n\u011bkdy m\u016f\u017ee st\u00e1t smrteln\u00fdm, proto\u017ee l\u00e1\u010dka ob\u010das str\u00e1v\u00ed sv\u00e9 neopatrn\u00e9 hosty.<\/p>\n\n
Vztahy mezi l\u00e1\u010dkami a netop\u00fdry jsou d\u016fkazem pozoruhodn\u00e9 rozmanitosti a p\u0159izp\u016fsobivosti \u017eivota na Zemi. Prost\u0159ednictv\u00edm echolokace a dal\u0161\u00edch d\u016fmysln\u00fdch strategi\u00ed l\u00e1\u010dky vyu\u017eily ve sv\u016fj prosp\u011bch chov\u00e1n\u00ed zv\u00ed\u0159at a vytvo\u0159ily jedine\u010dn\u00e9 a fascinuj\u00edc\u00ed symbiotick\u00e9 partnerstv\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"
L\u00e1\u010dky: P\u0159\u00edrodn\u00ed symfonie pro netop\u00fdry Echolokace a v\u00e1bni\u010dka l\u00e1\u010dek L\u00e1\u010dky, maso\u017erav\u00e9 z\u00e1zraky rostlinn\u00e9 \u0159\u00ed\u0161e, vyvinuly pozoruhodnou strategii, jak p\u0159il\u00e1kat sv\u016fj prim\u00e1rn\u00ed zdroj potravy: netop\u00fdry. Na rozd\u00edl od jin\u00fdch l\u00e1\u010dek, kter\u00e9…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[688,219,8557,3161,252,8558],"class_list":["post-4750","post","type-post","status-publish","format-standard","hentry","category-biology","tag-echolocation","tag-ecology","tag-pitcher-plants","tag-bats","tag-nature","tag-symbiosis"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=4750"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4750\/revisions"}],"predecessor-version":[{"id":4751,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4750\/revisions\/4751"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=4750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=4750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=4750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}