{"id":16757,"date":"2026-05-06T09:40:41","date_gmt":"2026-05-06T09:40:41","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=16757"},"modified":"2026-05-06T09:40:41","modified_gmt":"2026-05-06T09:40:41","slug":"coopers-hawks-thriving-urban-concrete-jungle","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/zoology\/coopers-hawks-thriving-urban-concrete-jungle\/","title":{"rendered":"Cooperovi jest\u0159\u00e1bi: M\u011bst\u0161t\u00ed \u0161ampioni v betonov\u00e9 d\u017eungli"},"content":{"rendered":"

Cooper\u2019s Hawks: Thriving in the Concrete Jungle<\/h2>\n\n

M\u011bst\u0161t\u00ed dravci<\/h2>\n\n

Cooperovy jest\u0159\u00e1bi, o nich\u017e se d\u0159\u00edve myslelo, \u017ee \u017eij\u00ed jen v les\u00edch, se p\u0159ekvapiv\u011b p\u0159izp\u016fsobili m\u011bstsk\u00e9mu prost\u0159ed\u00ed. Biologov\u00e9 jako Bob Rosenfield studuj\u00ed tyto pt\u00e1ky ve m\u011bstech po desetilet\u00ed a odhaluj\u00ed jejich pozoruhodnou schopnost prosperovat mezi mrakodrapy a dopravou.<\/p>\n\n

Fyzick\u00e9 p\u0159izp\u016fsoben\u00ed pro m\u011bstsk\u00fd \u017eivot<\/h2>\n\n

Cooperovi jest\u0159\u00e1bi maj\u00ed fyzick\u00e9 vlastnosti, kter\u00e9 je \u010din\u00ed vhodn\u00fdmi pro m\u011bstsk\u00e9 biotopy. Jejich kr\u00e1tk\u00e1, zaoblen\u00e1 k\u0159\u00eddla a dlouh\u00e9 ocasy jim umo\u017e\u0148uj\u00ed snadno man\u00e9vrovat mezi hustou vegetac\u00ed i budovami. Hlavn\u00ed ko\u0159ist\u00ed jsou mal\u00ed pt\u00e1ci, v\u010detn\u011b holub\u016f, vrabc\u016f a kos\u016f, kte\u0159\u00ed jsou ve m\u011bstech hojn\u00ed.<\/p>\n\n

Hn\u00edzd\u011bn\u00ed ve m\u011bst\u011b<\/h2>\n\n

Navzdory sv\u00e9 velikosti na\u0161li Cooperovi jest\u0159\u00e1bi v m\u011bstech dostatek hn\u00edzdi\u0161\u0165. \u010casto hn\u00edzd\u00ed v stromech v parc\u00edch, zahrad\u00e1ch i na okenn\u00edch parapetech budov. Ve Victorii v Britsk\u00e9 Kolumbii jsou zaznamen\u00e1ni hn\u00edzd\u00edc\u00ed ji\u017e od roku 1995.<\/p>\n\n

Popula\u010dn\u00ed dynamika<\/h2>\n\n

V\u00fdzkum Rosenfielda uk\u00e1zal, \u017ee populace Cooperov\u00fdch jest\u0159\u00e1b\u016f ve m\u011bstech jsou stabiln\u00ed nebo dokonce rostou. V n\u011bkter\u00fdch oblastech, nap\u0159\u00edklad v Milwaukee, jejich po\u010det rychle nar\u016fst\u00e1. Tento \u00fasp\u011bch je p\u0159i\u010d\u00edt\u00e1n hojnosti potravy a hn\u00edzdi\u0161\u0165 v m\u011bstsk\u00e9m prost\u0159ed\u00ed.<\/p>\n\n

P\u0159\u00ednos pro m\u011bstsk\u00e9 ekosyst\u00e9my<\/h2>\n\n

Cooperovi jest\u0159\u00e1bi hraj\u00ed d\u016fle\u017eitou roli v m\u011bstsk\u00fdch ekosyst\u00e9mech t\u00edm, \u017ee reguluj\u00ed populace men\u0161\u00edch pt\u00e1k\u016f. T\u00edm, \u017ee lov\u00ed men\u0161\u00ed pt\u00e1ky, pom\u00e1haj\u00ed udr\u017eovat rovnov\u00e1hu v ekosyst\u00e9mu. Nav\u00edc mohou sni\u017eovat \u0161\u00ed\u0159en\u00ed nemoc\u00ed p\u0159en\u00e1\u0161en\u00fdch pt\u00e1ky.<\/p>\n\n

Ochrann\u00e9 obavy<\/h2>\n\n

Navzdory sv\u00e9 p\u0159izp\u016fsobivosti m\u011bstsk\u00e9mu prost\u0159ed\u00ed \u010del\u00ed Cooperovi jest\u0159\u00e1bi st\u00e1le v\u00fdzv\u00e1m. V minulosti byli tvrd\u011b pron\u00e1sledov\u00e1ni kv\u016fli domn\u011bl\u00e9mu ohro\u017een\u00ed dr\u016fbe\u017ee. Dnes hrozby p\u0159edstavuje \u00fabytek vhodn\u00e9ho habitatu a pou\u017e\u00edv\u00e1n\u00ed pesticid\u016f.<\/p>\n\n

V\u011bda a vzd\u011bl\u00e1v\u00e1n\u00ed s ob\u010dany<\/h2>\n\n

Rosenfield a dal\u0161\u00ed biologov\u00e9 se spol\u00e9haj\u00ed na ob\u010dansk\u00e9 v\u011bdce, kte\u0159\u00ed pom\u00e1haj\u00ed v jejich v\u00fdzkumu. M\u00edstn\u00ed obyvatel\u00e9 \u010dasto poz\u00fdvaj\u00ed biologov\u00e9 na sv\u00e9 pozemky, aby studovali Cooperovy jest\u0159\u00e1by a chr\u00e1nili jejich hn\u00edzda. Vzd\u011bl\u00e1vac\u00ed programy hraj\u00ed tak\u00e9 kl\u00ed\u010dovou roli p\u0159i podpo\u0159e porozum\u011bn\u00ed a ocen\u011bn\u00ed t\u011bchto m\u011bstsk\u00fdch dravc\u016f.<\/p>\n\n

Pozorov\u00e1n\u00ed divo\u010diny ve va\u0161em zahrad\u011b<\/h2>\n\n

Pro mnoh\u00e9 m\u011bstsk\u00e9 obyvatele p\u0159edstavuj\u00ed Cooperovi jest\u0159\u00e1by jedine\u010dnou p\u0159\u00edle\u017eitost pozorovat divokou p\u0159\u00edrodu zbl\u00edzka. Jejich odv\u00e1\u017en\u00e9 chov\u00e1n\u00ed a impozantn\u00ed loveck\u00e9 dovednosti lze sledovat z pohodl\u00ed vlastn\u00edho domova nebo m\u00edstn\u00edch park\u016f.<\/p>\n\n

Budoucnost m\u011bstsk\u00fdch jest\u0159\u00e1b\u016f<\/h2>\n\n

Rosenfield v\u011b\u0159\u00ed, \u017ee Cooperovi jest\u0159\u00e1bi nemuseli b\u00fdt tak vz\u00e1cn\u00ed, jak se d\u0159\u00edve myslelo; jen nebyli pozorov\u00e1ni na spr\u00e1vn\u00fdch m\u00edstech. M\u011bsta nab\u00edzej\u00ed \u017eivotaschopn\u00e9 a potenci\u00e1ln\u011b dlouhodob\u00e9 prost\u0159ed\u00ed pro tyto p\u0159izp\u016fsobiv\u00e9 dravce. Porozum\u011bn\u00edm jejich biologii a chov\u00e1n\u00ed m\u016f\u017eeme zajistit jejich trvalou p\u0159\u00edtomnost v na\u0161ich m\u011bstsk\u00fdch prost\u0159ed\u00edch.<\/p>","protected":false},"excerpt":{"rendered":"

Cooper\u2019s Hawks: Thriving in the Concrete Jungle M\u011bst\u0161t\u00ed dravci Cooperovy jest\u0159\u00e1bi, o nich\u017e se d\u0159\u00edve myslelo, \u017ee \u017eij\u00ed jen v les\u00edch, se p\u0159ekvapiv\u011b p\u0159izp\u016fsobili m\u011bstsk\u00e9mu prost\u0159ed\u00ed. Biologov\u00e9 jako Bob Rosenfield…<\/p>\n","protected":false},"author":2,"featured_media":25429,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[280],"tags":[22159,16083,2244,13454,22160],"class_list":["post-16757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zoology","tag-coopers-hawk","tag-urban-wildlife","tag-urban-ecology","tag-bird-watching","tag-raptor-conservation"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16757","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=16757"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16757\/revisions"}],"predecessor-version":[{"id":25430,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16757\/revisions\/25430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/25429"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=16757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=16757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=16757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}