Tsarin ƙaura na shekara-shekara na Cranes masu rufe ido a lokacin hunturu a Izumi bisa ga bin diddigin tauraron ɗan adam da kuma tasirinsu ga kiyayewa.

Mujalla:Binciken Dabbobin Kifi, 9(1), shafi na 23.

Nau'in Avian (Avian):Crane mai rufe fuska (Grus monacha)

Takaitaccen Bayani:

An lissafa Crane mai hula (Grus monacha) a matsayin nau'in da ke da rauni ta IUCN. Ilimi game da ƙaura na Crane mai hula har yanzu yana da iyaka. A nan mun ba da rahoton yanayin ƙaura na yanayi-na ɗan lokaci na Cranes masu hula a lokacin hunturu a Izumi, Japan, da kuma muhimman wurare don kiyaye su. Crane huɗu na manya da biyar na ƙasa da ƙasa, duk suna yin hunturu a Izumi, Japan, an sanya musu na'urorin watsa tauraron ɗan adam (tsarin GPS-GSM) a wuraren da suka tsaya a arewa maso gabashin China a cikin 2014 da 2015. Mun yi nazarin lokaci da tsawon lokacin manya da ƙananan yara a lokacin ƙaura na bazara da kaka, da kuma lokacin da suka zauna a wurin kiwo da lokacin hunturu. Bugu da ƙari, mun yi nazarin amfani da crane a ƙasar a wuraren da suka tsaya. Crane manya sun ɗauki lokaci mai tsawo don ƙaura a arewa a lokacin bazara (matsakaicin = kwanaki 44.3) da kuma kudu a lokacin kaka (matsakaicin = kwanaki 54.0) idan aka kwatanta da crane masu hula (kwanaki 15.3 da 5.2, bi da bi). Duk da haka, ƙananan yara suna da tsawon lokacin hunturu (matsakaicin = kwanaki 149.8) da kuma lokacin kiwo (lokacin kiwo ga manya) (matsakaicin = kwanaki 196.8) idan aka kwatanta da manya (kwanaki 133.8 da 122.3, bi da bi). An gano muhimman wurare guda uku na tsayawa: yankin da ke kewaye da Muraviovka Park a Rasha, Songnen Plain a China, da kuma gabar tekun yamma na Koriya ta Kudu, inda cranes ke yin mafi yawan lokacin ƙaura (62.2 da 85.7% a lokacin bazara da kaka, bi da bi). A lokacin ƙaura, lokacin makiyaya da hunturu, Hooded Cranes yawanci suna zama a cikin gonaki don hutawa da ciyarwa. A lokacin da ba lokacin hunturu ba, ƙasa da kashi 6% na wuraren tsayawa suna cikin yankunan da aka kare. Gabaɗaya, sakamakonmu yana ba da gudummawa ga fahimtar yanayin ƙaura na shekara-shekara na Hooded Cranes a cikin hanyar tashi ta gabas, da kuma tsara matakan kiyayewa ga wannan nau'in.