Gurbatar hasken muhalli
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Gurɓatar hasken muhalli[1] shine tasirin hasken wucin gadi akan kwayoyin halitta guda daya da kuma tsarin halittu gaba daya.
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Tasiri da hasken wucin gadi ke da shi a kan kwayoyin halitta yana da matukar muni,[2] kuma ya bambanta daga fa'ida (misali karin ikon nau'in maharbi don lura da ganima) zuwa ga mutuwa nan da nan (misali asu da ke sha'awar fitilun wuta kuma zafi ya kashe su). Hakanan yana yiwuwa hasken da dare ya kasance mai fa'ida kuma yana cutar da nau'in halitta. A matsayin misali, mutane suna amfana daga yin amfani da hasken wucin gadi na cikin gida don tsawaita lokacin da ake samu don aiki da wasa, amma hasken yana rushe rudun circadian na ɗan adam, kuma sakamakon damuwa yana lalata lafiya.[3][4]
Ta hanyar tasirin daban-daban da gurɓataccen haske ke da shi a kan nau'ikan mutum ɗaya, yanayin yanayin yankuna yana shafar. A cikin batun inda jinsuna biyu suka mamaye Niche guda biyu, yawan adadin yawan jama'a na iya canzawa da gabatarwar wucin gadi da dare. Misali, wasu nau'in gizo-gizo suna guje wa wuraren da aka kunna wuta, yayin da wasu nau'ikan suna son gina gidajen yanar gizo kai tsaye akan fitilun. Tun da fitilun fitulu suna jawo kwari masu tashi da yawa,[5] gizo-gizo da ke jure wa haske suna samun fa'ida akan gizo-gizon da ke guje mata, kuma suna iya zama mafi rinjaye a cikin muhalli a sakamakon haka.[6] Canje-canje a cikin waɗannan mitoci na nau'in na iya yin tasiri a kan ƙwanƙwasa, kamar yadda hulɗar tsakanin waɗannan nau'ikan da sauran nau'ikan halittu ke shafar kuma ana canza gidajen abinci . Waɗannan illolin na iya shafar tsirrai da dabbobi na yau da kullun . Misali, canje-canje a cikin ayyukan ƙwari masu aiki na dare na iya canza yanayin rayuwa na tsire-tsire masu furanni na dare, wanda zai iya ba da abinci ko matsuguni ga dabbobin yau da kullun.
Gabatarwar hasken wucin gadi da dare yana ɗaya daga cikin sauye-sauye masu tsauri ga ɗan adam a Duniya, kwatankwacin gurɓataccen gurɓataccen abu, canjin amfani da ƙasa, da canjin yanayi saboda haɓakar iskar gas na kore .