\u0130klim de\u011fi\u015fikli\u011finin do\u011fal ya\u015fam \u00fczerindeki olumsuz etkilerine ili\u015fkin yeni bir ara\u015ft\u0131rma, kurakl\u0131\u011fa dayan\u0131kl\u0131l\u0131klar\u0131yla bilinen kakt\u00fcslerin de ciddi tehdit alt\u0131nda oldu\u011funu ortaya koydu.<\/p>\n
ABD’deki Arizona ve South Florida \u00fcniversitelerinden ara\u015ft\u0131rmac\u0131lar\u0131n \u00f6nc\u00fcl\u00fc\u011f\u00fcnde y\u00fcr\u00fct\u00fclen \u00e7al\u0131\u015fmada, Amerika k\u0131tas\u0131nda bulunan 993 kakt\u00fcs t\u00fcr\u00fc incelendi.<\/p>\n
Ara\u015ft\u0131rmada, k\u00fcresel s\u0131cakl\u0131klar\u0131n y\u00fckselmesi ve \u015fiddetli kurakl\u0131klar\u0131n artmas\u0131 nedeniyle \u00e7ok say\u0131da kakt\u00fcs t\u00fcr\u00fcn\u00fcn ya\u015fam alanlar\u0131n\u0131n daralabilece\u011fi belirlendi.<\/p>\n
Bilim insanlar\u0131, incelenen kakt\u00fcs t\u00fcrlerinin d\u00f6rtte birinden fazlas\u0131n\u0131n 2100 y\u0131l\u0131na kadar ya\u015famlar\u0131na elveri\u015fli alanlar\u0131n en az y\u00fczde 80’ini kaybedebilece\u011fini tespit etti.<\/p>\n
\u00d6zellikle \u015eili, Peru ve Brezilya’n\u0131n kuzeydo\u011fusunda kakt\u00fcs \u00e7e\u015fitlili\u011finin ciddi \u00f6l\u00e7\u00fcde azalabilece\u011fi belirtildi.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, Amerika k\u0131tas\u0131ndaki kakt\u00fcs t\u00fcrlerinin halihaz\u0131rda y\u00fczde 30’undan fazlas\u0131n\u0131n ya\u015fam alanlar\u0131n\u0131n tahrip edilmesi ve do\u011fadan yasa d\u0131\u015f\u0131 toplanma gibi nedenlerle neslinin t\u00fckenme tehlikesi alt\u0131nda bulundu\u011funa dikkat \u00e7ekti.<\/p>\n
Ara\u015ft\u0131rma, zorlu iklim ko\u015fullar\u0131na uyum sa\u011flayabilen kakt\u00fcslerin bile artan s\u0131cakl\u0131klar ve uzun s\u00fcreli kurakl\u0131klardan olumsuz etkilenebilece\u011fini g\u00f6sterdi.<\/p>\n
Bilim insanlar\u0131, iklim de\u011fi\u015fikli\u011finin mevcut tehditleri daha da a\u011f\u0131rla\u015ft\u0131rabilece\u011fine i\u015faret etti.<\/p>\n
Ara\u015ft\u0131rman\u0131n sonu\u00e7lar\u0131, bilimsel yay\u0131n organ\u0131 Nature dergisinde yay\u0131mland\u0131.<\/p>\n","protected":false},"excerpt":{"rendered":"
ABD’de ger\u00e7ekle\u015ftirilen bilimsel ara\u015ft\u0131rma, artan s\u0131cakl\u0131klar ve \u015fiddetli kurakl\u0131klar\u0131n kakt\u00fcslerin neslinin t\u00fckenme riskini art\u0131rd\u0131\u011f\u0131n\u0131 ortaya koydu. \u0130ncelenen 993 kakt\u00fcs t\u00fcr\u00fcn\u00fcn d\u00f6rtte birinden fazlas\u0131n\u0131n, 2100 y\u0131l\u0131na kadar ya\u015famlar\u0131na elveri\u015fli alanlar\u0131n en az y\u00fczde 80’ini kaybedebilece\u011fi belirlendi.<\/p>\n","protected":false},"author":14,"featured_media":61271,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16116,9],"tags":[1654,17541],"class_list":["post-61270","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-4-bolge-2","category-dunya","tag-iklimdegisikligi","tag-kaktus"],"yoast_head":"\n