Masana kimiyya sun rubuta sabon nau'in toad a kan gangaren Cerro Candelaria, Yana cikin lardin Tungurahua na Ecuador. Wannan binciken, wanda masana daga Ecominga Foundation, INABIO, Jami'ar San Francisco ta Quito, da Jami'ar Yanki ta Amazon Ikiam suka jagoranta, yana ƙarfafa mahimmancin Ecuador a matsayin wani yanki mai mahimmanci ga bambancin halittu na Andean. An sanya wa nau'in suna Osornophryne backshalli don girmama fitaccen masanin halitta dan Burtaniya Steve Backshall. wanda ya goyi bayan ayyukan kiyayewa daban-daban a yankin.
An buga binciken ne a cikin mujallar kimiyyar PeerJ kuma ya biyo bayan shekaru da aka yi na bincike-binciken dabbobi da na herpetological a cikin babban kogin Pastaza, yanki mai mahimmancin muhalli. Steve Backshall's Bearsapo, kamar yadda aka sani da baki, misali ne bayyananne na dukiyoyin dazuzzukan girgijen Ecuador da har yanzu ba a gano su ba.
Musamman fasali na sabon toad
Sabuwar nau'in, Osornophryne backshalli, sananne ne don ta ƙananan girma da cikakkun bayanai na musamman a cikin yanayin halittarsaMaza sun kai tsayin tsakanin 22 zuwa 29 mm, yayin da mata za su iya auna tsakanin 30 zuwa 35 mm. Fatar bayanta tana da nau'in warts na conical, launin zaitun-launin ruwan kasa, mai dige-dige da tabo mai rawaya. yayin da ciki yana nuna tsari na wuraren rawaya marasa daidaituwa akan bangon duhu mai duhu.
Ɗaya daga cikin fitattun siffofi na wannan amphibian shine papilla mai triangular wanda yake a ƙarshen snout, tare da layin dakatarwar tubercles a gefen baya. Bugu da ƙari kuma, yatsan ƙafa na biyar na gaɓoɓin baya yana da gajere musamman idan aka kwatanta da irin wannan nau'in jinsi ɗaya.
Halittar halitta keɓanta ga Andes da juyin halittarta
Halin Osornophryne yana da girma zuwa arewacin Andes na Kudancin Amirka, tare da jinsunan da aka samu a tsayi tsakanin mita 2.000 zuwa 4.000 a yankuna kamar Colombia da Ecuador. O. backshalli yana wakiltar nau'in nau'in jinsi na goma sha biyu da aka sani kuma ya tsawaita rarrabawa fiye da iyakokin da aka zaci a baya, kamar kogin Pastaza, wanda aka yi imanin ya zama shingen biogeographic wanda ba za a iya jurewa ba.
Ayyukan masu binciken sun haɗa da cikakken ilimin halittar jiki, nazarin osteological da nazarin kwayoyin halitta, wanda ya tabbatar da mallakar wannan nau'in ga ƙungiyar Macaw Osornophryne, wanda yake da dangantaka ta kud da kud amma tare da bambance-bambancen yanayin halitta da launi.
Wuri da kiyayewa
Ana samun toad a cikin dazuzzukan gajimare da ba a taɓa gani ba, a tsayin da ke tsakanin mita 2.568 zuwa 2.725 sama da matakin teku. Irin nau'in ya bayyana yana da ƙarancin yawan jama'a, tunda kawai an ƙididdige ƙididdigan ƙididdiga sama da shekaru goma na sa ido a yankin.
Muhallin da yake rayuwa ya ƙunshi ciyayi masu yawa na dabino, bishiyu masu cike da epiphytes da kauri na zuriyar ganyeAn haɗa waɗannan mahallin a cikin wuraren da aka karewa kamar Cerro Candelaria Reserve, wani yanki na Langanates-Sangay Connectivity Corridor, da Finca Palmonte, ajiyar sirri mai alaƙa da shirin Socio Bosque.
Bisa la'akari da ƙarancin bayanai kan yawan jama'a da rarrabawa. An gabatar da nau'in a matsayin "Ƙarancin Bayanai" (DD) akan Jerin Jajayen IUCNKoyaya, wuraren da aka rubuta ta a halin yanzu suna amfana daga kariyar doka da tsare-tsaren kiyaye mutum ɗaya.
