Gano yankin da ba a haihuwa da kuma hanyar ƙaura ta Whimbrels (Numenius phaeopus rogachevae) a cikin hanyar tashi ta Gabashin Asiya-Australasian.

Nau'in Avian (Avian):Whimbrel (Numenius phaeopus)

Mujalla:Binciken Dabbobin Avian

Takaitaccen Bayani:

Tantance hanyoyin ƙaura da haɗin tsuntsayen ƙaura a matakin yawan jama'a yana taimakawa wajen fayyace bambance-bambancen da ke tsakanin ƙaura. An gane nau'ikan halittu guda biyar a cikin Whimbrel (Numenius phaeopus) a Eurasia. Ssp. rogachevae shine nau'in halittu da aka bayyana kwanan nan. Yana haihuwa a Tsakiyar Siberia, yayin da yankin da ba ya haihuwa da hanyoyin ƙaura har yanzu ba a fayyace su ba. Mun bi diddigin ƙaura na Eurasian Whimbrels da aka kama a wurare uku marasa haihuwa (Moreton Bay a gabashin gabar tekun Ostiraliya, Roebuck Bay a Arewa maso Yammacin Ostiraliya da Sungei Buloh Wetland a Singapore) da wurare biyu da za a tsaya kan ƙaura (Chongming Dongtan da Mai Po Wetland a China). Mun ƙayyade wuraren kiwon kuma mun tantance nau'ikan tsuntsayen da aka yiwa alama a Gabashin Asiya - Ostiraliya Flyway (EAAF) bisa ga yadda aka san rarrabar kowace nau'in halittu. Daga cikin tsuntsaye 30 da aka yiwa alama, tsuntsaye 6 da 21 da aka yi musu rijista a cikin kewayon kiwo na ssp. rogachevae da variegatus, bi da bi; an haife ɗaya a yankin da ake tsammanin canzawa tsakanin yankin kiwo na ssp. phaeopus da rogachevae, da kuma biyu a yankin tsakanin yankin kiwo na ssp. rogachevae da variegatus. Tsuntsayen da suka kiwo a yankin kiwo na ssp. rogachevae sun yi lokacin kiwo na ssp. rogachevae a arewacin Sumatra, Singapore, Gabashin Java da Arewa maso Yammacin Ostiraliya kuma galibi sun tsaya a bakin tekun China a lokacin ƙaura. Babu ɗayan tsuntsayenmu da aka kiwo a yankin kiwo na musamman na nau'in phaeopus. Nazarin da aka yi a baya ya annabta cewa rogachevae whimbrels suna ƙaura tare da hanyar Flyway ta Tsakiya ta Asiya kuma suna ciyar da lokacin kiwo na sp a Yammacin Indiya da Gabashin Afirka. Mun gano cewa aƙalla wasu rogachevae whimbrels suna ƙaura tare da EAAF kuma suna ciyar da lokacin kiwo na ssp a kudu maso gabashin Asiya da Ostiraliya. ssp. Pheopus yana da ƙarancin yaɗuwa a cikin EAAF a yankin yamma, ko kuma wataƙila bai faru kwata-kwata ba.