{"id":706213,"date":"2026-08-02T16:36:03","date_gmt":"2026-08-02T16:36:03","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=706213"},"modified":"2026-08-02T16:36:03","modified_gmt":"2026-08-02T16:36:03","slug":"excrementele-pinguinilor-urmarite-din-spatiu-timp-de-30-de-ani-efectele-schimbarilor-climatice","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=706213","title":{"rendered":"Excrementele pinguinilor, urm\u0103rite din spa\u021biu timp de 30 de ani. Efectele schimb\u0103rilor climatice"},"content":{"rendered":"
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Echipa de cercetare, format\u0103 din speciali\u0219ti de la Universitatea Clemson, Universitatea California Santa Cruz, NASA \u0219i Universitatea Stony Brook, a analizat imagini satelitare din perioada 1984\u20132013 \u0219i a identificat modific\u0103ri ale semn\u0103turii spectrale a guano-ului, care indic\u0103 tipul de hran\u0103 consumat de p\u0103s\u0103ri.<\/p>\n

Potrivit autorului principal al studiului, profesorul Casey Youngflesh, imaginile din satelit, combinate cu metode moderne de analiz\u0103 geochimic\u0103 \u0219i statistic\u0103, au permis monitorizarea dietei pinguinilor f\u0103r\u0103 expedi\u021bii repetate \u00een Antarctica.<\/p>\n

Cercet\u0103torii au stabilit c\u0103 excrementele cu o nuan\u021b\u0103 mai roz indic\u0103 o diet\u0103 bazat\u0103 pe krill, \u00een timp ce cele mai deschise la culoare arat\u0103 un consum mai mare de pe\u0219ti\u0219ori argintii, hrana preferat\u0103 a pinguinilor Ad\u00e9lie, potrivit Science Focus<\/a>.<\/p>\n

Reducerea ghe\u021bii marine, asociat\u0103 cu sc\u0103derea consumului de pe\u0219te<\/h2>\n

Analiza a ar\u0103tat c\u0103 reducerea ghe\u021bii marine din Oceanul de Sud a fost asociat\u0103 cu o cre\u0219tere a consumului de krill \u0219i cu o sc\u0103dere a consumului de pe\u0219te. Schimbarea este important\u0103 deoarece pe\u0219ti\u0219orii argintii ofer\u0103 mai multe calorii, iar puii hr\u0103ni\u021bi cu ace\u0219tia au \u0219anse mai mari s\u0103 supravie\u021buiasc\u0103 iernii antarctice.<\/p>\n

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Oamenii de \u0219tiin\u021b\u0103 explic\u0103 faptul c\u0103 diminuarea ghe\u021bii marine afecteaz\u0103 reproducerea pe\u0219ti\u0219orilor argintii, care depind de aceast\u0103 ghea\u021b\u0103 pentru depunerea ou\u0103lor. \u00cen consecin\u021b\u0103, pinguinii sunt nevoi\u021bi s\u0103 consume mai mult krill, o resurs\u0103 mai pu\u021bin nutritiv\u0103 \u0219i disputat\u0103 \u0219i de alte specii, precum balenele \u0219i focile.<\/p>\n

Impactul \u00eenc\u0103lzirii globale<\/h2>\n

Autorii studiului avertizeaz\u0103 c\u0103 pinguinii Ad\u00e9lie reprezint\u0103 un indicator al st\u0103rii ecosistemelor antarctice, iar modific\u0103rile observate \u00een dieta lor reflect\u0103 impactul \u00eenc\u0103lzirii globale asupra lan\u021bului trofic marin.<\/p>\n

Potrivit cercet\u0103torilor, dup\u0103 2013, ghea\u021ba marin\u0103 din arealul speciei a continuat s\u0103 se reduc\u0103, ceea ce sugereaz\u0103 c\u0103 tendin\u021ba de \u00eenlocuire a pe\u0219tilor cu krill \u00een alimenta\u021bia pinguinilor va continua \u0219i \u00een urm\u0103torii ani.<\/p>\n","protected":false},"excerpt":{"rendered":"

Echipa de cercetare, format\u0103 din speciali\u0219ti de la Universitatea Clemson, Universitatea California Santa Cruz, NASA \u0219i Universitatea Stony Brook, a analizat imagini satelitare din perioada 1984\u20132013 \u0219i a identificat modific\u0103ri … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":706214,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/706213"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=706213"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/706213\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/706214"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=706213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=706213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=706213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}