Canjin yanayi lamari ne na duniya wanda ya shafi mu duka, kodayake ba haka yake ba. A Ostiraliya akwai wani tsuntsu wanda yake da kamannin aku wanda sunansa na kimiyya Barnardius zonarius que ya ɗan sami tsayin fuka-fuki tsakanin santimita 4 da 5 a cikin recentan shekarun nan. Dalilin?
Duk abin da alama yana nuna cewa ƙaruwar yanayin zafi, da kuma ayyukan sare dazuzzuka da aka yi a Yammacin Ostiraliya a cikin shekarun 1970, sun ba da gudummawa ga tsawan fikafikan.
Masana kimiyya a jami’ar Notre Dame da ke Sydney sun binciki wasu nau’uka daban-daban daga gidan adana kayan tarihi na Yammacin Australia, wanda ke da tarin tsuntsaye tun a farkon karni na XNUMX da kuma rayayyun samfurin. Don haka, sun lura da hakan fikafikan sun daɗe tsakanin santimita 4 da 5 a cikin shekaru 45 da suka gabata, a wannan lokacin zafin ya karu tsakanin digiri 0,1 da 0,2 a yankin da wadannan tsuntsayen masu ban mamaki suke rayuwa.
Wannan bambancin kadan ne, amma tasirin yanayi yana da mahimmanci kamar yadda bincike ya nuna Barnardius zonarius, wanda aka fi sani da 'yan baranda na Barnard. Kuma hakane tsuntsaye masu ɗumi gabaɗaya suna da gaɓoɓi fiye da waɗanda ke zaune a yankuna masu zafin nama.
Dylan Korczynskyj, daya daga cikin masana kimiyya da suka halarci binciken, ya bayyana cewa "yayin da yanayin yanayin ke ƙaruwa, ƙarin tsawan fikafikan zai iya taimaka wa waɗannan tsuntsayen su ’yantar da kansu daga zafin rana da yawa kuma su dace da yanayinsu da kyau".
A Ostiraliya, nahiyar da tafi kowa bushewa a duniya, zafin jiki ya tashi da kusan digiri 1 tun 1910, kamar yadda aka nuna a rahoton na yanayin yanayi na shekara ta 2016 wanda Ofishin kula da yanayi na kasar ya aiwatar. Don haka menene makomar tsuntsayen Ostiraliya?