{"id":763706,"date":"2025-10-02T22:11:54","date_gmt":"2025-10-02T20:11:54","guid":{"rendered":"https:\/\/www.hashtag.al\/?p=763706"},"modified":"2025-10-02T22:11:54","modified_gmt":"2025-10-02T20:11:54","slug":"pse-grate-jetojne-me-gjate-se-burrat-studimi-hedh-drite-mbi-misterin","status":"publish","type":"post","link":"https:\/\/www.hashtag.al\/index.php\/2025\/10\/02\/pse-grate-jetojne-me-gjate-se-burrat-studimi-hedh-drite-mbi-misterin\/","title":{"rendered":"Pse grat\u00eb jetojn\u00eb m\u00eb gjat\u00eb se burrat – Studimi hedh drit\u00eb mbi misterin","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"\"<\/a><\/p>\n

N\u00eb p\u00ebrgjith\u00ebsi, grat\u00eb jetojn\u00eb m\u00eb gjat\u00eb se burrat. Kjo \u00ebsht\u00eb e v\u00ebrtet\u00eb p\u00ebr njer\u00ebzit n\u00eb pothuajse t\u00eb gjitha vendet dhe periudhat historike dhe hendeku mashkull-fem\u00ebr v\u00ebrehet edhe tek specie t\u00eb tjera. Por pse? Nj\u00eb studim i ri mund t\u00eb hedh\u00eb drit\u00eb mbi k\u00ebt\u00eb mister t\u00eb hersh\u00ebm, duke sugjeruar se ai \u00ebsht\u00eb thell\u00ebsisht i rr\u00ebnjosur n\u00eb historin\u00eb evolucionare.<\/span><\/p>\n

Nj\u00eb ekip nd\u00ebrkomb\u00ebtar, i udh\u00ebhequr nga shkenc\u00ebtar\u00eb n\u00eb Institutin Max Planck p\u00ebr Antropologjin\u00eb Evolucionare, shqyrtoi 1,176 specie – analiza m\u00eb gjith\u00ebp\u00ebrfshir\u00ebse e dallimeve gjinore n\u00eb jet\u00ebgjat\u00ebsi n\u00eb mesin e gjitar\u00ebve dhe shpend\u00ebve deri m\u00eb sot. Ata zbuluan se gjitar\u00ebt femra jetojn\u00eb mesatarisht 12 p\u00ebr qind m\u00eb gjat\u00eb se meshkujt, por e nj\u00ebjta gj\u00eb nuk vlen p\u00ebr shpend\u00ebt: n\u00eb speciet e shpend\u00ebve, meshkujt jetojn\u00eb rreth 5 p\u00ebr qind m\u00eb gjat\u00eb se femrat.<\/span><\/p>\n

Nj\u00eb hipotez\u00eb e zakonshme p\u00ebr t\u00eb shpjeguar k\u00ebt\u00eb ndryshim \u00ebsht\u00eb hipoteza e seksit heterogamet, e cila i referohet kromozomeve seksuale. Tek gjitar\u00ebt, femrat zakonisht kan\u00eb dy kromozome X, nd\u00ebrsa meshkujt kan\u00eb nj\u00eb X dhe nj\u00eb Y (heterogamet). Ka disa t\u00eb dh\u00ebna q\u00eb sugjerojn\u00eb se t\u00eb pasurit dy kromozome X mund t’i mbroj\u00eb femrat nga mutacionet e d\u00ebmshme, duke ofruar nj\u00eb avantazh mbijetese. Tek shpend\u00ebt, megjithat\u00eb, jan\u00eb femrat seksi heterogamet.<\/span><\/p>\n

Ekipi pas studimit t\u00eb ri zbuloi se 72 p\u00ebr qind e gjitar\u00ebve shfaqnin nj\u00eb avantazh t\u00eb jet\u00ebgjat\u00ebsis\u00eb te femrat, nd\u00ebrsa 68 p\u00ebr qind e shpend\u00ebve shfaqnin nj\u00eb avantazh te meshkujt – n\u00eb p\u00ebrputhje me hipotez\u00ebn e seksit heterogamet. Sidoqoft\u00eb, dallimet gjinore varionin gjer\u00ebsisht.<\/span><\/p>\n

\u201cDisa specie treguan t\u00eb kund\u00ebrt\u00ebn e modelit t\u00eb pritur,\u201d<\/i><\/em>\u00a0tha autorja kryesore Johanna St\u00e4rk n\u00eb nj\u00eb deklarat\u00eb.<\/span><\/p>\n

\u201cP\u00ebr shembull, n\u00eb shum\u00eb shpend\u00eb grabitqar\u00eb, femrat jan\u00eb si m\u00eb t\u00eb m\u00ebdha ashtu edhe m\u00eb jet\u00ebgjata se meshkujt. Pra, kromozomet seksuale mund t\u00eb jen\u00eb vet\u00ebm nj\u00eb pjes\u00eb e historis\u00eb.\u201d<\/i><\/em><\/span><\/p>\n

K\u00ebshtu q\u00eb studiuesit g\u00ebrmuan edhe m\u00eb thell\u00eb dhe shqyrtuan strategjit\u00eb riprodhuese. P\u00ebrmes p\u00ebrzgjedhjes seksuale, meshkujt shpesh zhvillojn\u00eb karakteristika q\u00eb rrisin suksesin e tyre n\u00eb \u00e7ift\u00ebzim, por mund t\u00eb jen\u00eb t\u00eb d\u00ebmshme p\u00ebr jet\u00ebgjat\u00ebsin\u00eb e tyre \u2013 gj\u00ebra si ngjyrat vezulluese, madh\u00ebsia e madhe e trupit dhe arm\u00eb t\u00eb caktuara. Ekipi vuri re se tek gjitar\u00ebt poligam\u00eb me konkurrenc\u00eb t\u00eb fort\u00eb, meshkujt n\u00eb p\u00ebrgjith\u00ebsi vdesin m\u00eb her\u00ebt se femrat, nd\u00ebrsa shpend\u00ebt jan\u00eb shpesh monogam\u00eb, p\u00ebrballen me m\u00eb pak konkurrenc\u00eb dhe meshkujt mund t\u00eb shihen se jetojn\u00eb m\u00eb gjat\u00eb, shkruann IFL<\/a>.<\/span><\/span><\/p>\n

N\u00eb p\u00ebrgjith\u00ebsi, poligamia dhe dallimet e theksuara n\u00eb madh\u00ebsi shoq\u00ebroheshin me nj\u00eb avantazh m\u00eb t\u00eb madh p\u00ebr femrat.<\/span><\/p>\n

Studimi gjeti gjithashtu prova se seksi q\u00eb \u00ebsht\u00eb m\u00eb i p\u00ebrfshir\u00eb n\u00eb rritjen e pasardh\u00ebsve – tek gjitar\u00ebt, kjo zakonisht jan\u00eb femrat – tenton t\u00eb jetoj\u00eb m\u00eb gjat\u00eb. Tek speciet me jet\u00ebgjat\u00ebsi t\u00eb madhe, si primat\u00ebt, kjo ka t\u00eb ngjar\u00eb t\u00eb jet\u00eb nj\u00eb avantazh evolucionar: femrat mbijetojn\u00eb derisa pasardh\u00ebsit e tyre t\u00eb jen\u00eb t\u00eb pavarur ose seksualisht t\u00eb pjekur p\u00ebr t\u00eb siguruar vazhdimin e specieve.<\/span><\/p>\n

Speciet e studiuara jetonin t\u00eb gjitha n\u00eb kopshte zoologjike, t\u00eb cilat ofrojn\u00eb mbrojtje nga element\u00ebt mjedisor\u00eb si klima e ashp\u00ebr, uria dhe grabitja. \u00cbsht\u00eb menduar prej koh\u00ebsh se element\u00ebt e till\u00eb nxisin ndryshimin e v\u00ebrejtur midis jet\u00ebgjat\u00ebsis\u00eb mashkullore dhe fem\u00ebrore. Megjith\u00ebse hendeku u reduktua tek kafsh\u00ebt e kopshteve zoologjike, avantazhi i femrave i gjetur n\u00eb popullatat e egra ende mbeti. Kjo pasqyron at\u00eb q\u00eb shohim te njer\u00ebzit, ku p\u00ebrparimet n\u00eb mjek\u00ebsi dhe kushtet e jetes\u00ebs e kan\u00eb ngushtuar, por nuk kan\u00eb arritur ta eliminojn\u00eb hendekun e jet\u00ebgjat\u00ebsis\u00eb.<\/span><\/p>\n

“Gjetjet tona mund t\u00eb ndihmojn\u00eb p\u00ebr t\u00eb shpjeguar pse dallimet n\u00eb JMA [jet\u00ebgjat\u00ebsia mesatare e t\u00eb rriturve] midis burrave dhe grave jan\u00eb kaq konsistente n\u00eb koh\u00eb dhe kultura,”<\/em> p\u00ebrfundojn\u00eb studiuesit.<\/span><\/p>\n

\u201cN\u00eb m\u00ebnyr\u00eb t\u00eb ve\u00e7ant\u00eb, JMA e anuar nga femrat duket t\u00eb jet\u00eb e zakonshme p\u00ebr shimpanzet\u00eb dhe gorillat, duke sugjeruar q\u00eb jet\u00ebgjat\u00ebsia m\u00eb e madhe p\u00ebr femrat \u00ebsht\u00eb nj\u00eb karakteristik\u00eb e ngulitur prej koh\u00ebsh n\u00eb historin\u00eb ton\u00eb evolucionare.\u201d<\/em><\/span><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

N\u00eb p\u00ebrgjith\u00ebsi, grat\u00eb jetojn\u00eb m\u00eb gjat\u00eb se burrat. Kjo \u00ebsht\u00eb e v\u00ebrtet\u00eb p\u00ebr njer\u00ebzit n\u00eb pothuajse t\u00eb gjitha vendet dhe periudhat historike dhe hendeku mashkull-fem\u00ebr v\u00ebrehet edhe tek specie t\u00eb tjera. Por pse? Nj\u00eb studim i ri mund t\u00eb hedh\u00eb drit\u00eb mbi k\u00ebt\u00eb mister t\u00eb hersh\u00ebm, duke sugjeruar se ai \u00ebsht\u00eb thell\u00ebsisht i rr\u00ebnjosur n\u00eb […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":51,"featured_media":763708,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"class_list":["post-763706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fast-foodi"],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/posts\/763706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/comments?post=763706"}],"version-history":[{"count":99999,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/posts\/763706\/revisions"}],"predecessor-version":[{"id":763709,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/posts\/763706\/revisions\/763709"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/media\/763708"}],"wp:attachment":[{"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/media?parent=763706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/categories?post=763706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hashtag.al\/index.php\/wp-json\/wp\/v2\/tags?post=763706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}