La anomalous hade da zazzabi da hazo Yana bayan mutuwar kwadi, toads da salamanders, bisa ga wani binciken da National Museum of Natural Sciences (MNCN-CSIC) ya jagoranta tare da Cibiyar Haɗin gwiwar Binciken Halittu da Ƙungiyar Herpetological na Mutanen Espanya, wanda aka buga a cikin Halittu na Yanzu.
Nisa daga danganta shi ga zafi kawai, binciken ya sake fasalin ka'idar da ta gabata kuma ya haifar da tambaya Ka'idar rashin daidaituwa ta thermal-water: Yana da hulÉ—ar da ke tsakanin yanayin zafi da canje-canje a yanayin ruwan sama wanda ke haifar da cututtuka da kuma kara yawan mace-mace na amphibians, mafi yawan barazana ga rukuni na vertebrates a duniya.
Mahimman bayanai daga binciken a Spain
Tawagar ta yi nazari kusan samfurori 6.000 da aka yi a cikin Spain, rufe wuraren sanyi da rigar da kuma dumi da bushewa, don danganta kololuwar kamuwa da abubuwan yanayi da ba a saba gani ba.
Amphibians da suka dace da yanayin sanyi da ɗanɗano sun sami ƙarin kamuwa da cuta ta naman gwari Batrachochytrium dendrobatidis (Bd) a lokacin lokuta. zafi da bushewa mara kyau, yayin da jinsunan da suka fito daga wurare masu dumi da bushewa sun fi kamuwa da sanyi da sanyin da ba a saba gani ba.
Sabanin haka, ƙwayoyin cuta da ke yawo ta halitta a cikin al'ummarmu sun bunƙasa a ƙarƙashin yanayin sabanin na naman gwari; wannan asymmetry ya bayyana su rashin daidaituwa na ɗan lokaci duk da raba sarari.
Jagorar marubuci Barbora Thumsova ta jaddada cewa wannan ita ce shaida ta farko Hazo anomalies, hade da thermal anomalies, gudanar da tsari kuma an tabbatar da wannan dabarar don ƙwayoyin cuta masu mutuwa waɗanda ke shafar masu amphibians.
Fungi da ƙwayoyin cuta: masu adawa da kuzari da sakamako
Chytidomycosis, wanda naman gwari Bd ya haifar - watakila asalin Asiya - yana lalata fata kuma yana iya haifar da. rashin zuciya; yana daya daga cikin manyan abubuwan da ke haifar da raguwar kwadi, kwadi, da sabbin abubuwa a duniya kamar yadda aka riga aka rarraba shi a duk duniya.
Ranavirosis, a gefe guda, na iya jawowa yawan mace-mace Ta hanyar haɓakawa da lalata ƙwayar fata da gabobin ciki, duka ƙwayoyin cuta suna amsa alamun yanayi daban-daban, suna buƙatar saka idanu wanda ke ɗaukar yanayin zafi da ruwa cikin la'akari.
Binciken yayi kashedin game da nau'ikan alamomi kamar su Pyrenean kwari ko ungozoma na Betic, wanda ya rayu tsawon miliyoyin shekaru kuma yanzu an fallasa shi saboda asarar mafaka a cikin yanayin da ba a iya tsammani.
Bayan ainihin ƙimar su, masu amphibians suna aiki kamar alamomin yanayin yanayin halittuSuna sarrafa kwari da kuma kiyaye sarƙoƙin abinci; raguwarsu alama ce ta gargaɗi mai zurfi ta rashin aikin muhalli.
Tuni ƙungiyar ta fara haɗin gwiwa tare da manajoji don fassara shaida cikin aiki: ci gaba da saka idanu yawan jama'a da kuma pathogens, maido da dausayi da hanyoyin fakewa, da samfura waɗanda ke haɗa yanayin zafi da ruwan sama don hasashen barkewar cutar.
Shaidar ta haɗu akan ra'ayi mai sauƙi: lokacin da bugun zafi da ruwan sama ya fita daga daidaitawa, pathogens sami su taga kuma masu amphibians sun rasa dakin motsa jiki; fahimtar wannan rashin daidaituwa shine mabuɗin don samun lokaci da hana ƙarin mutuwa.
