ABD’de biliminsanlar\u0131 y\u00fczlerce ku\u015f t\u00fcr\u00fcn\u00fc 20 y\u0131ldan fazla s\u00fcredir izledikleri ara\u015ft\u0131rmada iklim de\u011fi\u015fikliklerinin ku\u015flar\u0131n g\u00f6\u00e7 modellerini de\u011fi\u015ftirdi\u011fini tespit etti. \u00c7al\u0131\u015fmaya g\u00f6re tohum, meyve ve \u00e7e\u015fitli b\u00f6cekler gibi besin kaynaklar\u0131n\u0131n bolluk zamanlar\u0131n\u0131n de\u011fi\u015fimi nedeniyle ku\u015flar\u0131n g\u00f6\u00e7 modellerinde de\u011fi\u015fim meydan gelmi\u015f.<\/p>\n
Biliminsanlar\u0131, iklim de\u011fi\u015fikli\u011finin canl\u0131lar\u0131n ya\u015famlar\u0131na etkisini ara\u015ft\u0131rd\u0131klar\u0131 bu \u00e7al\u0131\u015fmada iklim de\u011fi\u015fikli\u011fi konusundaki kritik sorulara cevap \u00fcretmeye \u00e7al\u0131\u015ft\u0131. Cornell \u00dcniversitesi’nden Andrew Farnsworth, “Ku\u015flar\u0131n g\u00f6\u00e7 metotlar\u0131n\u0131n de\u011fi\u015fimi, iklim de\u011fi\u015fikliklerine tepki olarak geli\u015fti. Her y\u0131l milyarlarca ku\u015f, bu k\u00fcresel de\u011fi\u015fim nedeniyle farkl\u0131 zamanlarda g\u00f6\u00e7 etmek durumunda” dedi.<\/p>\n
Ku\u015flar\u0131n y\u00fckselen s\u0131cakl\u0131k de\u011ferlerine ve g\u0131da kaynaklar\u0131n\u0131n bolluk zamanlar\u0131n\u0131n de\u011fi\u015fimine nas\u0131l uyum sa\u011flad\u0131klar\u0131 belirsizdi. Ayr\u0131ca ku\u015flar\u0131n g\u00f6\u00e7 zaman\u0131, g\u00f6\u00e7 g\u00fczergah\u0131 ve ku\u015f t\u00fcrleri aras\u0131nda sistematik bir \u00e7al\u0131\u015fma yapabilmek \u00e7ok zordu. Bu \u00e7al\u0131\u015fmada biliminsanlar\u0131, g\u00f6\u00e7men ku\u015flar\u0131 24 y\u0131l boyunca izledi ve g\u00f6\u00e7 metotlar\u0131n\u0131n de\u011fi\u015fimine tan\u0131kl\u0131k etti. Verilerin de\u011ferlendirilmesi i\u00e7in geli\u015ftirilen yeni bir metodu kullanan biliminsanlar\u0131, g\u00f6\u00e7men ku\u015flar\u0131n tohumlar\u0131n da\u011f\u0131lma d\u00f6nemlerinin, b\u00f6ceklerin ve di\u011fer g\u0131da kaynaklar\u0131n\u0131n bolluk d\u00f6nemlerine g\u00f6re g\u00f6\u00e7 zaman\u0131n\u0131 de\u011fi\u015ftirdiklerini fark etti. Buna g\u00f6re iklim de\u011fi\u015fimi, ku\u015flar\u0131n g\u00f6\u00e7 ettikleri zamanda kayma ya\u015fanmas\u0131na neden oldu. Bu yeni metodu kullanan biliminsanlar\u0131, ku\u015flar\u0131n u\u00e7u\u015f h\u0131z\u0131n\u0131 ve hareketlerini de inceleme f\u0131rsat\u0131 buldu. Ayr\u0131ca biliminsanlar\u0131, ku\u015flar\u0131n hangi enlem boyunca ilerleyerek g\u00f6\u00e7 ettiklerini ve bu enlem de\u011ferindeki de\u011fi\u015fimleri de ara\u015ft\u0131rd\u0131lar.<\/p>\n
Sonu\u00e7lara g\u00f6re, g\u00f6\u00e7 metotlar\u0131ndaki en b\u00fcy\u00fck de\u011fi\u015fimler daha h\u0131zl\u0131 \u0131s\u0131nan b\u00f6lgelerde ya\u015fayan ku\u015flarda meydana geldi. \u00d6zellikle ilkbahar d\u00f6nemlerinde \u00fcreme alanlar\u0131na ula\u015fmak i\u00e7in daha h\u0131zl\u0131 bir g\u00f6\u00e7\u00fcn meydana geldi\u011fini kaydeden biliminsanlar\u0131, sonbahar ve k\u0131\u015f mevsimlerinde bu g\u00f6\u00e7\u00fcn daha yava\u015f ger\u00e7ekle\u015fti\u011fini raporlad\u0131.<\/p>\n
Biliminsanlar\u0131, ku\u015flar\u0131n iklim de\u011fi\u015fikli\u011finin daha ileri boyutlar\u0131na uyum sa\u011flay\u0131p sa\u011flayamayaca\u011f\u0131 konusunda endi\u015feli. \u00c7\u00fcnk\u00fc besin kaynaklar\u0131ndaki en ufak bir de\u011fi\u015fiklik bile g\u00f6\u00e7men ku\u015flar\u0131n ya\u015famlar\u0131n\u0131 etkileyebilir, iklim de\u011fi\u015fikliklerinin kritik boyutlara ula\u015fmas\u0131 ku\u015flar\u0131n ya\u015famlar\u0131 i\u00e7in tehlikeli s\u00fcre\u00e7leri ba\u015flatabilir.<\/p>\n
Kaynak:<\/strong> https:\/\/cosmosmagazine.com\/biology\/bird-migratory-patterns-changing-with-the-climate<\/p>\n","protected":false},"excerpt":{"rendered":" ABD’de biliminsanlar\u0131 y\u00fczlerce ku\u015f t\u00fcr\u00fcn\u00fc 20 y\u0131ldan fazla s\u00fcredir izledikleri ara\u015ft\u0131rmada iklim de\u011fi\u015fikliklerinin ku\u015flar\u0131n g\u00f6\u00e7 modellerini de\u011fi\u015ftirdi\u011fini tespit etti. \u00c7al\u0131\u015fmaya g\u00f6re tohum, meyve ve \u00e7e\u015fitli b\u00f6cekler gibi besin kaynaklar\u0131n\u0131n bolluk zamanlar\u0131n\u0131n de\u011fi\u015fimi nedeniyle ku\u015flar\u0131n g\u00f6\u00e7 modellerinde de\u011fi\u015fim meydan gelmi\u015f. Biliminsanlar\u0131, iklim de\u011fi\u015fikli\u011finin canl\u0131lar\u0131n ya\u015famlar\u0131na etkisini ara\u015ft\u0131rd\u0131klar\u0131 bu \u00e7al\u0131\u015fmada iklim de\u011fi\u015fikli\u011fi konusundaki kritik sorulara cevap \u00fcretmeye […]<\/p>\n","protected":false},"author":1390,"featured_media":39087,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[294,528,5670,5271],"class_list":["post-39086","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-gida","tag-goc","tag-gocmen-kuslar","tag-iklim-degisikleri"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/39086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1390"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=39086"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/39086\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/39087"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=39086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=39086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=39086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}