Daya daga cikin 'yan tsirarun wuraren budurwa da suka rage a doron kasa, da Cape Kakakin Chile, wanda Unesco ta ayyana a matsayin Tarihin Duniya a 2005, ya zama sabon zangon sauyin yanayi.
A yankin da kusan babu wani aiki na ɗan adam, inda babu gurɓataccen yanayi kuma hakan ma ya yi nisa da hayaƙin masana'antu, a wannan kusurwar ta duniya fure da fauna sun rayu rayuwarsu ba tare da damuwa da komai ba, har zuwa yanzu.
A gefen kudu na nahiyar Amurka zamu iya samun wasu tsarkakakkun ruwa da kuma wasu daga cikin mafi gandun daji masu kore a duniya. Yankin da a yanzu ya sami damar tserewa daga saurin ƙaruwar yawan mutane. Anan, Ricardo Rozzi, masanin kimiyyar halittu kuma darekta na shirin kiyaye albarkatun halittu, inda yake da dakin gwaje-gwaje.
A dakin gwaje-gwaje na halitta, saboda kamar yadda shi da kansa ya fada wa gungun 'yan jaridar da suka raka shi yawon shakatawa Cabo de Hornos Biosphere Reserve, »wannan Gandun Jurasic ne na theasashen Arewa». Koyaya, waɗannan shimfidar wurare suma sun fara shan wahala sakamakon canjin yanayi.
Yanayin zafi a hankali yana wuce ƙimar 6ºC a cikin wannan yankin, yana haifar tsarin rayuwa na kwari na cikin ruwa, kamar su kudaje baki, sun sami ci gaba. Kamar yadda wannan wuri ke ɗumi, maye gurbin wasu jinsuna yana hanzarta, yana haifar da gajerta tsarin rayuwarsu. Wannan kuma yana da tasiri a kan yanayin halittu, musamman a kan tsuntsayen masu ƙaura, waɗanda suka je can don ciyarwa a lokacin kyankyasar wasu kwari kuma yanzu suka ga ba su da abinci.
A gefe guda, kodayake yanki ne mai kariya, Masu bincike ba su san ko za su iya yin tsayayya da mamayewar nau'ikan halittar da suka fito daga arewa ba.