{"id":12249,"date":"2021-02-08T10:56:32","date_gmt":"2021-02-08T12:56:32","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=12249"},"modified":"2023-01-05T14:52:59","modified_gmt":"2023-01-05T17:52:59","slug":"dinosaurs-in-the-21st-century","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/sl\/dinozavri-v-21-stoletju\/","title":{"rendered":"Dinozavri v 21. stoletju"},"content":{"rendered":"<p>Da so dinozavri izumrli pred pribli\u017eno 65,5 milijona let, ni novost za nikogar. <\/p>\n\n\n\n<p>Dinozavri so vladali povr\u0161ju in nebu planeta Zemlje 140 milijonov let, medtem ko smo mi - ljudje - tu le 200 tiso\u010d let. <\/p>\n\n\n\n<p>Najbolj sprejeta teorija o mno\u017ei\u010dnem izumrtju pravi, da je asteroid povzro\u010dil smrt skoraj vsega \u017eivega na Zemlji - vklju\u010dno z dinozavri - in tako povzro\u010dil konec obdobja plazilcev.<\/p>\n\n\n\n<p>Nekateri paleobiologi, ki preu\u010dujejo vse razpolo\u017eljive podatke o tej temi, pravijo, da bi do izumrtja dinozavrov pri\u0161lo, tudi \u010de asteroid ne bi zadel Zemlje, saj je pri\u0161lo do o\u010ditne evolucijske stagnacije dinozavrskih vrst. <\/p>\n\n\n\n<p>Druga skupina paleobiologov pa trdi, da je bila analiza razpolo\u017eljivih podatkov napa\u010dno ovrednotena, in pravi, da bi bili dinozavri brez trka asteroida morda \u0161e vedno tu - posledi\u010dno pa nas ne bi bilo.<\/p>\n\n\n\n<p>Dinozavri so \u017eiveli v nemirnem \u010dasu, na Zemlji so izbruhnili \u0161tevilni vulkani, globalna temperatura in gladina morja sta se hitro spreminjali. <\/p>\n\n\n\n<p>Leta 1980 je bil objavljen \u010dlanek, v katerem je bila predlagana trenutno sprejeta teorija o asteroidu, ki je povzro\u010dil izumrtje v kredi in terciarju, zadnje obdobje \u017eivljenja dinozavrov. <\/p>\n\n\n\n<p class=\"has-large-font-size\">Dan, ko je asteroid padel na Zemljo, se imenuje <strong>Kreda-paleogen<\/strong> (<strong>K-Pg<\/strong>) izumrtje. Teorijo podpirajo dokazi o tanki plasti sedimentov, imenovani <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cretaceous%E2%80%93Paleogene_boundary\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Meja K-Pg<\/strong><\/a>. <\/p>\n\n\n\n<p>Ta tanka plast vsebuje veliko <strong>iridij<\/strong>, redka kovina, ki jo najdemo na Zemlji, vendar je zelo prisotna v asteroidih.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"918\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur-1024x918.png\" alt=\"\" class=\"wp-image-12250\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur-1024x918.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur-300x269.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur-768x689.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur-1536x1378.png 1536w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/02\/dinosaur.png 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n<p>Zanimivo je, da je plast iridija prisotna po vsem svetu, vendar je na Jukatanu<a href=\"https:\/\/en.wikipedia.org\/wiki\/Yucat%C3%A1n_Peninsula\"> Polotok<\/a> je bila redka kovina najdena v veliko ve\u010dji koli\u010dini. <\/p>\n\n\n\n<p>V za\u010detku 90. let so raziskovalci odkrili krater po asteroidu v<a href=\"https:\/\/en.wikipedia.org\/wiki\/Gulf_of_Mexico\"> <strong>Mehi\u0161ki zaliv<\/strong><\/a><strong>,<\/strong> ki potrjuje dogodek K-Pg.<\/p>\n\n\n\n<p>Evolucijska pot dinozavrov je \u0161e vedno tema, ki v znanstveni skupnosti vzbuja nesoglasja. <\/p>\n\n\n\n<p>Zaradi razlik v vzor\u010denju in nestandardiziranih analiti\u010dnih metodologij je bilo spro\u017eenih ve\u010d razprav. <\/p>\n\n\n\n<p>V celoti razumeti in rekonstruirati razli\u010dne vzorce tega obdobja je izjemno te\u017eko in subjektivno, saj so raziskovalci nagnjeni k hierarhi\u010dni pristranskosti. <\/p>\n\n\n\n<p>Poleg tega se za odpravo teh razli\u010dnih dejavnikov uporabljajo razli\u010dne metode, zaradi \u010desar znanstveniki prihajajo do razli\u010dnih zaklju\u010dkov.<\/p>\n\n\n\n<p>Glavna razprava med<sup> <\/sup>znanstveniki, ali so vrste dinozavrov upadale \u017ee pred dogodkom K-Pg ali pa sta se diverzifikacija in evolucija vrst \u0161e vedno dogajali, ko je asteroid udaril v Zemljo.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><a href=\"https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rsos.201195\" target=\"_blank\" rel=\"noreferrer noopener\">V \u010dlanku, objavljenem v reviji Royal Society Open Science, so Bonsor in sodelavci z Univerze<\/a>ti of Bath in Prirodoslovni muzej sta posku\u0161ala najti odgovor na to razpravo. <\/p>\n\n\n\n<p>Uporaba evolucijskih dreves dinozavrov in specializiranega statisti\u010dnega modeliranja. \u0160tudija je upo\u0161tevala tendenco rasti in evolucije novih vrst, ki so se v tistem \u010dasu pojavljale.<\/p>\n\n\n\n<p>Evolucijska pot dinozavrov je bila zaznamovana s \u0161tevilnimi vzponi in padci. <\/p>\n\n\n\n<p>Ko se je pojavila nova vladarska vrsta, je nekaj \u010dasa \u017eivela, dokler se ni pojavila nova in mo\u010dnej\u0161a vrsta, ki je povzro\u010dila zaton in izumrtje prej\u0161nje.<\/p>\n\n\n\n<p>\"V prej\u0161njih \u0161tudijah, ki so jih opravili drugi, so z razli\u010dnimi metodami pri\u0161li do zaklju\u010dka, da bi dinozavri tako ali tako izumrli, saj so se proti koncu krednega obdobja zmanj\u0161ali. <\/p>\n\n\n\n<p>Vendar pa smo pokazali, da \u010de nabor podatkov raz\u0161irimo na novej\u0161e rodovnike dinozavrov in \u0161ir\u0161i nabor vrst dinozavrov, rezultati dejansko ne vodijo k temu sklepu - v resnici jih je le pribli\u017eno polovica,\" je v izjavi povedal Joe Bonsor, glavni avtor \u0161tudije.<\/p>\n\n\n\n<p>Bonsor in njegova raziskovalna skupina ne podpirata teorije, da so bili dinozavri v \u010dasu K-Pg v zatonu. Zadnje vrste dinozavrov, ki so bile v vzponu, niso bile upo\u0161tevane v podatkih prej\u0161njih \u0161tudij. <\/p>\n\n\n\n<p>Trdijo, da bi dinozavri \u0161e naprej rasli in se razvijali, \u010de se asteroid ne bi zaletel v polotok Jukatan, in bi nenehno vladali planetu Zemlja.&nbsp;<\/p>\n\n\n\n<p>Vendar pa Bonsor priznava, da lahko \"zaradi ve\u010dinoma neizogibnih pristranskosti fosilnih zapisov in pomanjkanja podatkov pogosto vidimo upad vrst\", vendar hkrati pravi, da znanost ne more v celoti razumeti realnosti tistega \u010dasa. <\/p>\n\n\n\n<p>\"Morda nikoli ne bomo izvedeli, kak\u0161na je bila resni\u010dna stopnja evolucije dinozavrov, saj je edini na\u010din, da to zagotovo vemo, zapolnitev vrzeli v zapisih, da bi dobili najbolj\u0161i odgovor, mi pa preprosto mislimo, da tega \u0161e nismo storili,\" pravi Bonsor.<\/p>\n\n\n\n<p>\u010ce ne bi pri\u0161lo do izumrtja K-Pg, se obdobje plazilcev morda ne bi nikoli kon\u010dalo, sesalci pa se ne bi nikoli razvili ali osvojili novih ni\u0161 na kopnem, kar bi pripeljalo do sveta, kot ga poznamo danes. <\/p>\n\n\n\n<p>\u010ce bi dinozavri iz nekega razloga pre\u017eiveli in bi \u017eiveli skupaj, bi bilo tako, kot pravi eden od glavnih junakov filma Jurski svet Padlo kraljestvo: \"Ko prvi\u010d vidi\u0161 dinozavra, je to kot \u010dude\u017e, bere\u0161 o njih v knjigah, vidi\u0161 kosti v muzejih, vendar ne verjame\u0161. <\/p>\n\n\n\n<p>So kot miti. In potem vidi\u0161, da je prvi \u017eiv.\" <\/p>\n\n\n\n<p>Na sre\u010do - v nasprotju s tem, kar se zgodi v filmu - ne moremo videti nobenega \u017eivega dinozavra, zato bo za nas in za znanstvenike ostalo skrivnost, kaj se je v resnici zgodilo. <\/p>\n\n\n\n<p class=\"has-large-font-size\">Za zdaj so \u0161tudije fosilov edini na\u010din za bolj\u0161e razumevanje dinozavrove resni\u010dnosti. &nbsp;<\/p>\n\n\n\n<p>Da, vsi, Mind the Graph ima ilustracije dinozavrov, ki jih lahko uporabite. Uporabite jih lahko za vizualno in privla\u010dno predstavitev svoje raziskave.&nbsp;<\/p>\n\n\n\n<p>S programom Mind the Graph lahko ustvarite ilustracije, predloge za infografike in grafi\u010dne izvle\u010dke z uporabo na\u0161e galerije ilustracij, ki so na voljo, od <a href=\"https:\/\/app.mindthegraph.com\/illustrations\/subcategory\/earth-sciences\" target=\"_blank\" rel=\"noreferrer noopener\">vede o Zemlji<\/a> na . <a href=\"https:\/\/app.mindthegraph.com\/illustrations\/subcategory\/geography\">geografija<\/a>.<\/p>\n\n\n\n<p>\u010ce pa potrebujete zelo specifi\u010dno ilustracijo, jo bomo oblikovali za vas! \u010ce ne najdete popolnih virov za posredovanje znanstvenih informacij, se lahko zanesete na na\u0161o storitev na zahtevo. Vse so posebej za vas izdelali profesionalni oblikovalci, kurirala pa jih je na\u0161a znanstvena ekipa.<\/p>\n\n\n\n<p>Za\u010dnite uporabljati Mind the Graph <a href=\"https:\/\/app.mindthegraph.com\/auth\/register\" target=\"_blank\" rel=\"noreferrer noopener\">prav zdaj<\/a>.&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Da so dinozavri izumrli pred pribli\u017eno 65,5 milijona let, ni novost za nikogar. Dinozavri so vladali povr\u0161ju in nebu planeta Zemlje 140 milijonov let, medtem ko smo mi - ljudje - tu le 200 tiso\u010d let. Najbolj sprejeta teorija o mno\u017ei\u010dnem izumrtju je, da je smrt dinozavrov povzro\u010dil asteroid, ki je bil v \u010dasu izumrtja [...]<\/p>","protected":false},"author":4,"featured_media":12251,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[826,96,554,250,964,775],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dinosaurs in the 21st Century - Mind The Graph<\/title>\n<meta name=\"description\" content=\"If the asteroid hasn&#039;t hit the earth, dinosaurs would be here in the 21st century. 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He has a Ph.D. and solid scientific background in Psychopharmacology and experience as a Guest Researcher at the Max Planck Institute of Psychiatry (Germany) and Researcher in D'Or Institute for Research and Education (IDOR, Brazil). Fabricio holds over 2500 citations in Google Scholar. He has 10 years of experience in small innovative businesses, with relevant experience in product design and innovation management. Connect with him on LinkedIn - Fabricio Pamplona.","sameAs":["http:\/\/mindthegraph.com","https:\/\/www.linkedin.com\/in\/fabriciopamplona"],"url":"https:\/\/mindthegraph.com\/blog\/sl\/author\/fabricio\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/posts\/12249"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/comments?post=12249"}],"version-history":[{"count":3,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/posts\/12249\/revisions"}],"predecessor-version":[{"id":26050,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/posts\/12249\/revisions\/26050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/media\/12251"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/media?parent=12249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/categories?post=12249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/sl\/wp-json\/wp\/v2\/tags?post=12249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}