{"id":39763,"date":"2020-01-18T09:27:35","date_gmt":"2020-01-18T06:27:35","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=39763"},"modified":"2020-01-18T09:27:35","modified_gmt":"2020-01-18T06:27:35","slug":"insanlarin-biyocesitlilige-etkisi-tahmin-edilenden-cok-daha-once-baslamis","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2020\/01\/18\/insanlarin-biyocesitlilige-etkisi-tahmin-edilenden-cok-daha-once-baslamis","title":{"rendered":"\u0130nsanlar\u0131n biyo\u00e7e\u015fitlili\u011fe etkisi tahmin edilenden \u00e7ok daha \u00f6nce ba\u015flam\u0131\u015f"},"content":{"rendered":"

\u0130nsan kaynakl\u0131 biyo\u00e7e\u015fitlilik d\u00fc\u015f\u00fc\u015f\u00fc, ara\u015ft\u0131rmac\u0131lar\u0131n tahmin etti\u011finden \u00e7ok daha \u00f6nce ba\u015flad\u0131. Ecology Letters isimli dergide yay\u0131mlanan \u00e7al\u0131\u015fmaya g\u00f6re, biyo\u00e7e\u015fitlili\u011fe etkimiz kendi t\u00fcr\u00fcm\u00fcz taraf\u0131ndan de\u011fil atalar\u0131m\u0131z taraf\u0131ndan ba\u015flat\u0131lm\u0131\u015f.<\/p>\n

\u0130sve\u00e7, \u0130svi\u00e7re ve \u0130ngiltere’den biliminsanlar\u0131n\u0131n kat\u0131l\u0131m g\u00f6sterdi\u011fi \u00e7al\u0131\u015fmada fosil kal\u0131nt\u0131lar\u0131 incelendi. Buna g\u00f6re biyolojik \u00e7e\u015fitlilik krizi yeni bir durum de\u011fil. Ancak bu kriz, insan atalar\u0131n\u0131n milyonlarca y\u0131l \u00f6nce ba\u015flatt\u0131\u011f\u0131 bir s\u00fcrecin h\u0131zlanmas\u0131n\u0131 temsil ediyor.<\/p>\n

Gothenburg \u00dcniversitesi’nden S\u00f8ren Faurby, “\u00c7o\u011funlukla fosil kal\u0131nt\u0131lar\u0131 yoluyla fark etti\u011fimiz biyo\u00e7e\u015fitlilikteki kay\u0131plar genellikle iklim de\u011fi\u015fiklikleri \u00fczerinden a\u00e7\u0131klan\u0131r. Ancak son birka\u00e7 milyon y\u0131l i\u00e7inde Afrika’daki iklimsel de\u011fi\u015fiklikler nispeten daha k\u00fc\u00e7\u00fckt\u00fc ve analizlerimiz biyo\u00e7e\u015fitlilikteki kay\u0131plar\u0131n ana nedeninin iklim de\u011fi\u015fiklikleri olmad\u0131\u011f\u0131n\u0131 g\u00f6steriyor” dedi.<\/p>\n

Ara\u015ft\u0131rman\u0131n y\u00fcr\u00fct\u00fcc\u00fclerinden Daniele Silvestro, “Analizlerimize g\u00f6re Do\u011fu Afrika’daki etoburlar\u0131n neslinin t\u00fckenmesine ili\u015fkin en iyi a\u00e7\u0131klama, soyu t\u00fckenmi\u015f olan atalar\u0131m\u0131z ile aralar\u0131ndaki g\u0131da rekabeti” a\u00e7\u0131klamalar\u0131nda bulundu.<\/p>\n

Etobur canl\u0131lar\u0131n say\u0131s\u0131nda yakla\u015f\u0131k 4 milyon y\u0131l \u00f6nce ba\u015flayan bir azalma g\u00f6r\u00fcyoruz. Afrika fosillerine ili\u015fkin \u00e7al\u0131\u015fmalar\u0131m\u0131z bu azalman\u0131n temel nedenlerinden birinin besin maddeleri \u00fczerinden s\u00fcren rekabet oldu\u011funu ortaya \u00e7\u0131kar\u0131yor. Ayn\u0131 zamanda bu d\u00f6nemde ya\u015fayan atalar\u0131m\u0131z kleptoparazitizm ad\u0131 verilen yeni bir teknik de kullan\u0131yorlard\u0131. Kleptoparazitizm, di\u011fer avc\u0131lar taraf\u0131ndan \u00f6ld\u00fcr\u00fclen hayvanlar\u0131 \u00e7almak anlam\u0131na gelir. \u00d6rne\u011fin, aslan\u0131n bir \u00e7itadan \u00f6l\u00fc bir antilop \u00e7almas\u0131. \u0130nsan atalar\u0131n\u0131n di\u011fer y\u0131rt\u0131c\u0131 hayvanlar taraf\u0131ndan \u00f6ld\u00fcr\u00fclen hayvanlar\u0131 \u00e7almalar\u0131n\u0131n etkisini inceleyen biliminsanlar\u0131, bu durumun di\u011fer hayvanlar\u0131n a\u00e7 kalmas\u0131na ve zamanla t\u00fcm t\u00fcrlerinin yok olmas\u0131na yol a\u00e7m\u0131\u015f olabilece\u011fini d\u00fc\u015f\u00fcn\u00fcyor. S\u00f8ren Faurby, “Afrika’da ya\u015fayan \u00e7o\u011fu etoburun avlar\u0131n\u0131 korumak i\u00e7in yeni stratejiler geli\u015ftirmesinin nedeni bu olabilir. \u00d6rne\u011fin, bir leoparlar\u0131n avlar\u0131n\u0131 bir a\u011fa\u00e7ta toplamas\u0131 gibi. Di\u011fer etoburlar bunun yerine aslanlarda g\u00f6rd\u00fc\u011f\u00fcm\u00fcz gibi sosyal davran\u0131\u015flar geli\u015ftirdiler, onlar avlar\u0131n\u0131 korumak i\u00e7in birlikte \u00e7al\u0131\u015f\u0131yor” a\u00e7\u0131klamalar\u0131nda bulundu.<\/p>\n

Kaynak:<\/strong> https:\/\/m.phys.org\/news\/2020-01-human-caused-biodiversity-decline-millions-years.html<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0130nsan kaynakl\u0131 biyo\u00e7e\u015fitlilik d\u00fc\u015f\u00fc\u015f\u00fc, ara\u015ft\u0131rmac\u0131lar\u0131n tahmin etti\u011finden \u00e7ok daha \u00f6nce ba\u015flad\u0131. Ecology Letters isimli dergide yay\u0131mlanan \u00e7al\u0131\u015fmaya g\u00f6re, biyo\u00e7e\u015fitlili\u011fe etkimiz kendi t\u00fcr\u00fcm\u00fcz taraf\u0131ndan de\u011fil atalar\u0131m\u0131z taraf\u0131ndan ba\u015flat\u0131lm\u0131\u015f. \u0130sve\u00e7, \u0130svi\u00e7re ve \u0130ngiltere’den biliminsanlar\u0131n\u0131n kat\u0131l\u0131m g\u00f6sterdi\u011fi \u00e7al\u0131\u015fmada fosil kal\u0131nt\u0131lar\u0131 incelendi. Buna g\u00f6re biyolojik \u00e7e\u015fitlilik krizi yeni bir durum de\u011fil. Ancak bu kriz, insan atalar\u0131n\u0131n milyonlarca y\u0131l \u00f6nce […]<\/p>\n","protected":false},"author":1390,"featured_media":39764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[2258,816,555],"class_list":["post-39763","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-biyocesitlilik","tag-fosil","tag-insan"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t