V\u011bt\u0161ina zv\u00ed\u0159at se vyh\u00fdb\u00e1 predaci, t\u00edm, \u017ee vlastn\u00ed tzv. kryptick\u00e9 zbarven\u00ed. Jedn\u00e1 se o zbarven\u00ed, kter\u00e9 je na v\u011bt\u0161in\u011b p\u0159\u00edrodn\u00edch podklad\u016f nekontrastn\u00ed a t\u00edm n\u00e1padn\u011b zt\u011b\u017euje pred\u00e1tor\u016fm nalezen\u00ed takov\u00e9 ko\u0159isti. V\u011bt\u0161ina opticky se orientuj\u00edc\u00edch pred\u00e1tor\u016f si proto vyvinula speci\u00e1ln\u00ed strategii hled\u00e1n\u00ed potravy, tzv. search image.D\u00edky n\u00ed, je pred\u00e1tor hledaj\u00edc\u00ed zn\u00e1mou ko\u0159ist schopen ji nach\u00e1zet snadn\u011bji ne\u017e nezn\u00e1mou, i kdy\u017e je stejn\u011b kryptick\u00e1. M\u016f\u017eeme si to p\u0159edstavit jako tvorbu ment\u00e1ln\u00edho obrazu \u017e\u00e1dan\u00e9 potravy, kter\u00e1 usnad\u0148uje jej\u00ed identifikaci. Pred\u00e1to\u0159i se tedy mus\u00ed dob\u0159e nau\u010dit detaily ve vzhledu t\u00e9to \u017e\u00e1dan\u00e9 ko\u0159isti, aby ji byli schopni efektivn\u011b vyhled\u00e1vat. Takov\u00e1 schopnost pln\u011b odpov\u00edd\u00e1 parametr\u016fm teorie Optimal foraging.
\nNicm\u00e9n\u011b je zjevn\u00e9, \u017ee tato schopnost je v\u00fdrazn\u011b ovlivn\u011bna \u00farovn\u00ed potravn\u00ed specializace jednotliv\u00fdch pred\u00e1tor\u016f. R\u016fzn\u00ed pred\u00e1to\u0159i se li\u0161\u00ed v tom jak je \u0161irok\u00e9 spektrum potravy, kterou jsou ochotni p\u0159ij\u00edmat, v \u00farovni neofobie, kterou vykazuj\u00ed, kdy\u017e se setkaj\u00ed s nezn\u00e1mou potravou, v tom jak dlouho tato neofobie p\u0159etrv\u00e1v\u00e1 a v tom jak snadno se u\u010d\u00ed p\u0159ijmout novou ko\u0159ist do sv\u00e9ho j\u00eddeln\u00ed\u010dku. To samoz\u0159ejm\u011b v\u00fdrazn\u011b ovliv\u0148uje schopnost\/ochotu\/efektivitu vytv\u00e1\u0159et search image \u017e\u00e1dan\u00e9 potravy.
\nN\u00e1\u0161 v\u00fdzkum se zam\u011b\u0159uje na testov\u00e1n\u00ed schopnost\u00ed r\u016fzn\u00fdch druh\u016f pt\u00e1k\u016f hledat kryptickou ko\u0159ist (zn\u00e1mou i nezn\u00e1mou), zahrnout takovou ko\u0159ist do sv\u00e9ho b\u011b\u017en\u00e9ho j\u00eddeln\u00ed\u010dku, vytvo\u0159it si jej\u00ed search image, ale i p\u0159esko\u010dit na ko\u0159ist jinou.<\/p>\n
Na v\u00fdzkumu tohoto t\u00e9matu se pod\u00edlej\u00ed:<\/strong><\/p>\n V\u011bt\u0161ina zv\u00ed\u0159at se vyh\u00fdb\u00e1 predaci, t\u00edm, \u017ee vlastn\u00ed tzv. kryptick\u00e9 zbarven\u00ed. Jedn\u00e1 se o zbarven\u00ed, kter\u00e9 je na v\u011bt\u0161in\u011b p\u0159\u00edrodn\u00edch podklad\u016f nekontrastn\u00ed a t\u00edm n\u00e1padn\u011b zt\u011b\u017euje pred\u00e1tor\u016fm nalezen\u00ed takov\u00e9 ko\u0159isti. V\u011b…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":205,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"sidebar-page.php","meta":{"footnotes":""},"_links":{"self":[{"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/pages\/240"}],"collection":[{"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/comments?post=240"}],"version-history":[{"count":8,"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/pages\/240\/revisions"}],"predecessor-version":[{"id":1590,"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/pages\/240\/revisions\/1590"}],"up":[{"embeddable":true,"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/pages\/205"}],"wp:attachment":[{"href":"http:\/\/cke.cz\/cs_CZ\/wp-json\/wp\/v2\/media?parent=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
Pt\u00e1k jako pred\u00e1tor<\/h3>\n
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