Njira yodziwira momwe malo okhala a kreni zofiira amasankhira nthawi zosiyanasiyana.

Magazini:Sayansi ya Chilengedwe Chonse, tsamba 139980.

Mitundu (ya mbalame):Kreni wofiirira (Grus japonensis)

Chidule:

Njira zogwirira ntchito zosungira zachilengedwe zimadalira kwambiri kudziwa malo okhala a mitundu ya mbalame zomwe zikufunidwa. Sizikudziwika zambiri za kukula kwa mbalame komanso nthawi yosankha malo okhala a mbalame zofiira zomwe zili pafupi kutha, zomwe zimachepetsa kusungidwa kwa malo okhala. Pano, mbalame ziwiri zofiira zinatsatiridwa ndi Global position system (GPS) kwa zaka ziwiri ku Yancheng National Nature Reserve (YNNR). Njira yochuluka idapangidwa kuti izindikire momwe mbalame zofiira zimasankhira malo okhala. Zotsatira zake zidawonetsa kuti mbalame zofiira zimakonda kusankha mbalame zofiira, maiwe, Suaeda salsa, ndi Phragmites australis, ndikupewa Spartina alterniflora. Mu nyengo iliyonse, chiŵerengero cha malo ogona a mbalame zofiira ndi maiwe chinali chapamwamba kwambiri masana ndi usiku, motsatana. Kusanthula kwina kwa ma multiscale kunawonetsa kuti kuchuluka kwa ma Scirpus mariqueter omwe amafalikira pa sikelo ya 200-m mpaka 500-m kunali kofunikira kwambiri pakupanga njira zonse zosankhidwira malo okhala, zomwe zikugogomezera kufunika kobwezeretsa malo ambiri okhala ma Scirpus mariqueter kuti anthu abwererenso ku red-crowned crane. Kuphatikiza apo, zinthu zina zimakhudza kusankha malo okhala pa ma sikelo osiyanasiyana, ndipo zopereka zawo zimasiyana malinga ndi nyengo ndi circadian rhythm. Kuphatikiza apo, kuyenerera kwa malo okhala kunapangidwa kuti kupereke maziko enieni oyendetsera malo okhala. Malo oyenera okhala masana ndi usiku anali 5.4%–19.0% ndi 4.6%–10.2% ya malo ophunzirira, motsatana, zomwe zikutanthauza kufunikira kokonzanso. Kafukufukuyu adawonetsa kukula ndi kayimbidwe ka nthawi ka kusankha malo okhala mitundu yosiyanasiyana yomwe ili pangozi yomwe imadalira malo ang'onoang'ono okhala. Njira yomwe ikuperekedwayi imagwira ntchito pakubwezeretsa ndi kuyang'anira malo okhala mitundu yosiyanasiyana yomwe ili pangozi.