Jarida:Binciken Muhalli, 34 (5), shafi 637-643.
Nau'o'i (Avian):Whooper swans (Cygnus cygnus)
Takaitawa:
Kewayon gida da amfani da wurin zama su ne manyan abubuwan da ke tattare da ilimin halittun jiragen sama, kuma nazarin kan waɗannan abubuwan zai taimaka wajen kiyayewa da sarrafa al'ummomin jiragen ruwa. Sittin da bakwai swans sun kasance tsarin matsayi na duniya da aka yi wa alama a Sanmenxia Wetland na lardin Henan don samun cikakkun bayanai game da wuri a cikin hunturu daga 2015 zuwa 2016. Girman kewayon gida na swans shine mafi girma a tsakiyar lokacin hunturu kuma ya biyo bayan farkon lokaci da marigayi lokaci, kuma girma ya bambanta sosai tsakanin lokutan hunturu uku. An sami bambance-bambance masu mahimmanci a cikin amfani da wuraren zama a tsakanin lokutan hunturu daban-daban. A farkon lokacin, swans galibi suna amfani da ciyawar ruwa da ciyayi masu tasowa, kuma sun fi dogaro da ƙarin kayan aikin wucin gadi saboda rashin wuraren ciyar da yanayi a tsakiyar lokacin. A cikin ƙarshen zamani, swans galibi suna amfani da sabon yankin ciyawa na ƙasa. Ban da zurfin ruwa, amfani da sauran matakan ruwa ya bambanta sosai tsakanin lokutan hunturu daban-daban. A cikin farkon lokacin hunturu, swans suna son fifita ƙananan wuraren da ruwa mai zurfi; a tsakiyar zamani, sun kasance galibi a cikin tsaka-tsaki da manyan wuraren ruwa kuma suna amfani da dukkan wuraren ruwan sai dai zurfin ruwa a ƙarshen lokacin hunturu. An kammala cewa wasu tsire-tsire sun fi son swans, irin su reeds, cattails da barnyard grass, kuma zurfin ruwa ya kamata ya dace da swans, tare da matakan ruwa ya bambanta fiye da gradient.
ANA BUGA A NAN:
doi.org/10.1111/1440-1703.12031
