{"id":61107,"date":"2025-12-10T08:30:09","date_gmt":"2025-12-10T08:30:09","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/61107\/"},"modified":"2025-12-10T08:30:09","modified_gmt":"2025-12-10T08:30:09","slug":"ka-maailma-lounapoolseimad-putukad-soovad-juba-mikroplasti-keskkond","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/61107\/","title":{"rendered":"Ka maailma l\u00f5unapoolseimad putukad s\u00f6\u00f6vad juba mikroplasti | Keskkond"},"content":{"rendered":"

Antarktisel, sel j\u00e4isel, osooniaugulisel mandril ja l\u00e4hikonna saartel elab \u00fcksainus t\u00e4iesti kohalik putukaliik, keda kusagil mujal ei ela.<\/p>\n

N\u00fc\u00fcd selgub, et see pisike endeemne surus\u00e4\u00e4sklane ladinakeelse nimega Belgica antarctica suudab t\u00e4naseks juba l\u00f5unamandrilegi levinud mikroplastiga esialgu t\u00e4itsa edukalt toime tulla, ehkki ka v\u00e4ikesi v\u00f5imalikke ohum\u00e4rgialgeid on m\u00e4rgata.<\/p>\n

Riisiterakese pikkused, kuid sellest m\u00e4rksa saledamad, maailma l\u00f5unapoolseima elupaigaga tiivutud putukad on nii\u00f6elda pol\u00fcekstremofiilid: nad tulevad toime eluga k\u00f5va k\u00fclma k\u00e4es, ulatuslikult k\u00f5ikuvas temperatuurivahemikus, pikas p\u00f5uas, k\u00f5rges soolsuses ja \u00fcsna tugevas ultraviolettkiirguses.<\/p>\n

Rahvusvaheline teadlasr\u00fchm eesotsas Jack Devliniga Ameerika \u00dchendriikidest Lexingtonist Kentucky \u00dclikoolist otsustas j\u00e4rele uurida, kas ja kui h\u00e4sti v\u00f5iks selline mitmek\u00fclgne vastupidavus laieneda ka plastsaastele, mida Antarktikas on k\u00fcll v\u00e4hem kui paljudes muudes piirkondades, kuid siiski on ta juba kindlalt kohal.<\/p>\n

<\/p>\n

Teadlased tegid Antarktika s\u00e4\u00e4skedega laborikatseid, kus nende elukeskkonda viidi looduslikku mulda meenutavasse substraati segatud pisikesi pol\u00fcet\u00fcleeniterakesi.<\/p>\n

Selgus, et katseputukad neelasid neid terakesi alla ainult siis, kui nende kontsentratsioon oli juba v\u00e4ga k\u00f5rge, ja ka sel juhul palju v\u00e4iksemas koguses kui muude putukate juures enamasti t\u00e4heldatud.<\/p>\n

Katseputukate elluj\u00e4\u00e4must mikroplast ei v\u00e4hendanud ja nende ainevahetuse kiirust ei m\u00f5jutanud.<\/p>\n

K\u00fcll aga m\u00e4rkasid teadlased, et putukate kehas v\u00e4henes suuremate plastidooside puhul rasvasisaldus. Rasv on aga Belgica antarctica’l, nagu paljudel muudelgi loomadel t\u00e4htis energiahoidla nii\u00f6elda mustadeks p\u00e4evadeks. V\u00e4henenud rasvavaru v\u00f5iks p\u00f5him\u00f5tteliselt kahjustada nende putukate muidu nii fenomenaalset vastupidavust Antarktika karmis keskkonnas.<\/p>\n

Teadlased kogusid Antarktika poolsaare l\u00e4hedastelt saartelt ka Belgica antarctica vastseid ja leidsid pisikesi plastiosakesi ka nende t\u00e4ielikult looduskeskkonnas elutsenud olendite seedetraktist. K\u00fcll mitte k\u00f5igilt, vaid ainult umbes seitsmelt protsendilt, kuid seegi osutab taas, et mikroplast on t\u00f5esti Antarktikasse j\u00f5udnud.<\/p>\n

Uuringutulemused on avaldatud ajakirjas Science of the Total Environment<\/a>.<\/p>\n

Teadusuudised on Vikerraadios eetris esmasp\u00e4evast reedeni ca kell 8.35 ja laup\u00e4eval ca kell 8.25.<\/p>\n","protected":false},"excerpt":{"rendered":"Antarktisel, sel j\u00e4isel, osooniaugulisel mandril ja l\u00e4hikonna saartel elab \u00fcksainus t\u00e4iesti kohalik putukaliik, keda kusagil mujal ei ela.…\n","protected":false},"author":2,"featured_media":61108,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[27222,26,27,37,33,35,34,36,31,32,21,28,29,95,2941,19,25,30968,23,24,22,20,30,92,93,94],"class_list":{"0":"post-61107","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maailm","8":"tag-antarktika","9":"tag-breaking-news","10":"tag-breakingnews","11":"tag-ee","12":"tag-eesti","13":"tag-eesti-keel","14":"tag-estonia","15":"tag-estonian","16":"tag-featured-news","17":"tag-featurednews","18":"tag-headlines","19":"tag-latest-news","20":"tag-latestnews","21":"tag-maailm","22":"tag-mikroplast","23":"tag-news","24":"tag-populaarseimad-lood","25":"tag-surusaasklane","26":"tag-top-stories","27":"tag-topstories","28":"tag-uldised-uudised","29":"tag-uudised","30":"tag-viimased-uudised","31":"tag-world","32":"tag-world-news","33":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/115694339832745036","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/61107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=61107"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/61107\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/61108"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=61107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=61107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=61107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}