{"id":13739,"date":"2019-01-01T09:58:22","date_gmt":"2019-01-01T09:58:22","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13739"},"modified":"2019-01-01T09:58:22","modified_gmt":"2019-01-01T09:58:22","slug":"aaron-odea-uncovering-the-hidden-history-of-mass-extinctions","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/paleontology\/aaron-odea-uncovering-the-hidden-history-of-mass-extinctions\/","title":{"rendered":"Aaron O’Dea: Odhaluje skrytou historii hromadn\u00fdch vym\u00edr\u00e1n\u00ed"},"content":{"rendered":"

Aaron O’Dea: Odhaluje skrytou historii hromadn\u00fdch vym\u00edr\u00e1n\u00ed<\/h2>\n\n

Paleontologie v Panam\u011b: Okno do minulosti<\/h2>\n\n

Paleobiolog Aaron O’Dea si ud\u011blal jm\u00e9no t\u00edm, \u017ee se zam\u011b\u0159il na zd\u00e1nliv\u011b bezv\u00fdznamn\u00e9. Studiem drobn\u00fdch fosili\u00ed mo\u0159sk\u00fdch \u017eivo\u010dich\u016f v Panam\u011b odhalil p\u0159ekvapiv\u00e9 poznatky o p\u0159\u00ed\u010din\u00e1ch a d\u016fsledc\u00edch hromadn\u00fdch vym\u00edr\u00e1n\u00ed.<\/p>\n\n

Po miliony let byly Severn\u00ed a Ji\u017en\u00ed Amerika odd\u011bleny mo\u0159skou cestou. Kdy\u017e se vytvo\u0159ila Panamsk\u00e1 \u0161\u00edje, izolovala Karibsk\u00e9 mo\u0159e a vytvo\u0159ila jedine\u010dn\u00e9 prost\u0159ed\u00ed, kter\u00e9 sehr\u00e1lo kl\u00ed\u010dovou roli ve v\u00fdvoji mo\u0159sk\u00e9ho \u017eivota.<\/p>\n\n

O’Dea\u016fv v\u00fdzkum odhalil, \u017ee Karibsk\u00e9 mo\u0159e neza\u017eilo hromadn\u00e9 vym\u00edr\u00e1n\u00ed bezprost\u0159edn\u011b pot\u00e9, co se Panamsk\u00e1 \u0161\u00edje vyno\u0159ila z mo\u0159e. M\u00edsto toho do\u0161lo ke zpo\u017ed\u011bn\u00ed o dva miliony let, co\u017e zpochyb\u0148uje tradi\u010dn\u00ed pohled na hromadn\u00e1 vym\u00edr\u00e1n\u00ed jako na n\u00e1hl\u00e9 ud\u00e1losti.<\/p>\n\n

V\u00fdznam neok\u00e1zal\u00fdch exempl\u00e1\u0159\u016f<\/h2>\n\n

Tradi\u010dn\u011b se paleontologov\u00e9 zam\u011b\u0159ovali na studium dob\u0159e zachovan\u00fdch fosili\u00ed, jako jsou kosti a zuby dinosaur\u016f. O’Dea se v\u0161ak domn\u00edv\u00e1, \u017ee tyto exempl\u00e1\u0159e nejsou reprezentativn\u00ed pro naprostou v\u011bt\u0161inu \u017eivota, kter\u00fd existoval v minulosti.<\/p>\n\n

Tvrd\u00ed, \u017ee b\u011b\u017en\u011bj\u0161\u00ed a m\u00e9n\u011b n\u00e1padn\u00e9 fosilie, jako jsou mechovky, mohou poskytnout cenn\u00e9 poznatky o d\u0159\u00edv\u011bj\u0161\u00edch podm\u00ednk\u00e1ch prost\u0159ed\u00ed. Studiem velikosti a tvaru zkamen\u011bl\u00fdch mechovek m\u016f\u017ee O’Dea odvodit zm\u011bny teploty vody v pr\u016fb\u011bhu \u010dasu.<\/p>\n\n

Mechovky: Ukazatele zm\u011bn prost\u0159ed\u00ed<\/h2>\n\n

Mechovky jsou drobn\u00ed koloni\u00e1ln\u00ed \u017eivo\u010dichov\u00e9, kte\u0159\u00ed se podobaj\u00ed kor\u00e1l\u016fm. Jsou citliv\u00ed na zm\u011bny prost\u0159ed\u00ed, co\u017e z nich \u010din\u00ed cenn\u00e9 ukazatele d\u0159\u00edv\u011bj\u0161\u00edch podm\u00ednek. O’Dea\u016fv v\u00fdzkum uk\u00e1zal, \u017ee populace mechovek v Karibsk\u00e9m mo\u0159i v\u00fdrazn\u011b poklesly po vytvo\u0159en\u00ed Panamsk\u00e9 \u0161\u00edje, co\u017e nazna\u010duje, \u017ee zm\u011bny prost\u0159ed\u00ed zp\u016fsoben\u00e9 izolac\u00ed Karibsk\u00e9ho mo\u0159e m\u011bly hlubok\u00fd dopad na mo\u0159sk\u00fd \u017eivot.<\/p>\n\n

Ekologick\u00e9 zm\u011bny a hromadn\u00e1 vym\u00edr\u00e1n\u00ed<\/h2>\n\n

O’Deaova pr\u00e1ce zd\u016fraz\u0148uje v\u00fdznam pochopen\u00ed ekologick\u00fdch zm\u011bn, kter\u00e9 p\u0159edch\u00e1zej\u00ed hromadn\u00fdm vym\u00edr\u00e1n\u00edm. Studiem postupn\u00e9ho poklesu populac\u00ed mechovek v Karibsk\u00e9m mo\u0159i poskytl d\u016fkazy, \u017ee zm\u011bny prost\u0159ed\u00ed mohou spustit hromadn\u00e1 vym\u00edr\u00e1n\u00ed po del\u0161\u00ed dobu, ne\u017e se d\u0159\u00edve myslelo.<\/p>\n\n

Dvoj\u00ed povaha pr\u00e1ce Aarona O’Dei<\/h2>\n\n

O’Dea nen\u00ed jen v\u011bdec, ale tak\u00e9 uzn\u00e1van\u00fd fotograf. Na\u0161el zp\u016fsob, jak zkombinovat sv\u00e9 v\u00e1\u0161n\u011b pro um\u011bn\u00ed a v\u011bdu a vytv\u00e1\u0159\u00ed \u00fa\u017easn\u00e9 sn\u00edmky fos\u00edli\u00ed a obyvatel Panamy.<\/p>\n\n

Jeho fotografie byly vystaveny v muze\u00edch a galeri\u00edch po cel\u00e9m sv\u011bt\u011b a prezentuj\u00ed kr\u00e1su a rozmanitost p\u0159\u00edrodn\u00edho sv\u011bta.<\/p>\n\n

V\u00fdzvy a odm\u011bny paleontologie v Panam\u011b<\/h2>\n\n

Paleontologie v Panam\u011b nen\u00ed bez sv\u00fdch v\u00fdzev. O’Dea \u010delil nemocem, nehod\u00e1m a frustrac\u00edm z pr\u00e1ce s ne\u00fapln\u00fdmi z\u00e1znamy fosili\u00ed. P\u0159esto z\u016fst\u00e1v\u00e1 oddan\u00fd sv\u00e9mu v\u00fdzkumu, poh\u00e1n\u011bn\u00fd touhou odhalit tajemstv\u00ed minulosti.<\/p>\n\n

V\u00fdznam O’Deaov\u00fdch objev\u016f<\/h2>\n\n

O’Dea\u016fv v\u00fdzkum m\u00e1 d\u016fle\u017eit\u00e9 d\u016fsledky pro pochopen\u00ed p\u0159\u00ed\u010din a d\u016fsledk\u016f hromadn\u00fdch vym\u00edr\u00e1n\u00ed. Jeho pr\u00e1ce zpochyb\u0148uje tradi\u010dn\u00ed n\u00e1zor, \u017ee hromadn\u00e1 vym\u00edr\u00e1n\u00ed jsou v\u017edy n\u00e1hl\u00e9 a katastrof\u00e1ln\u00ed ud\u00e1losti.<\/p>\n\n

Studiem postupn\u00e9ho poklesu populac\u00ed mechovek v Karibsk\u00e9m mo\u0159i O’Dea uk\u00e1zal, \u017ee zm\u011bny prost\u0159ed\u00ed mohou spustit hromadn\u00e1 vym\u00edr\u00e1n\u00ed po del\u0161\u00ed dobu. To m\u00e1 d\u016fle\u017eit\u00e9 d\u016fsledky pro pochopen\u00ed potenci\u00e1ln\u00edch dopad\u016f zm\u011bny klimatu na modern\u00ed ekosyst\u00e9my.<\/p>","protected":false},"excerpt":{"rendered":"

Aaron O’Dea: Odhaluje skrytou historii hromadn\u00fdch vym\u00edr\u00e1n\u00ed Paleontologie v Panam\u011b: Okno do minulosti Paleobiolog Aaron O’Dea si ud\u011blal jm\u00e9no t\u00edm, \u017ee se zam\u011b\u0159il na zd\u00e1nliv\u011b bezv\u00fdznamn\u00e9. Studiem drobn\u00fdch fosili\u00ed mo\u0159sk\u00fdch…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[18470,18471,18472,239,18473,561,18474,137,400,34],"class_list":["post-13739","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-aaron-odea","tag-bryozoa","tag-caribbean-sea","tag-fossils","tag-isthmus-of-panama","tag-mass-extinction","tag-paleobiology","tag-paleontology","tag-extinction","tag-climate-change"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13739","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=13739"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13739\/revisions"}],"predecessor-version":[{"id":13740,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13739\/revisions\/13740"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=13739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=13739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=13739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}