Ubungakanani bubalulekile: amadada asebusika ahlala ixesha elide kwaye asebenzisa iindawo zokuhlala ezimbalwa kumachibi amakhulu aseTshayina.

Ijenali:Uphando lweeAvian, i-10 (1), iphepha 1-8.

Iintlobo (Intaka):I-Eurasian wigeon (i-Mareca penelope), i-Falcated duck (Mareca falcata), i-pintail yaseMntla (Anas acuta)

Inkcazo:

Ubungqina bubonisa ukuba iintaka zasemanzini zasebusika ziye zaxinana ngakumbi kumachibi amabini amakhulu oMlambo iYangtze, iChibi laseMpuma Dong Ting (iPhondo laseHunan, 29°20′N, 113°E) kunye neChibi lePoyang (iPhondo laseJiangxi, 29°N, 116°20′E), phezu kwako nje ukusekwa kwamanye amachibi. Ngelixa olu dlelwane lunokwenzeka ngenxa yobukhulu beendawo zokuhlala ezingaphazamisekiyo kumachibi amakhulu, siyaqonda kancinci kubaqhubi abachaphazela ukuziphatha komntu ngamnye emva kolu tyekelo. Silandelele iintshukumo zasebusika zeentlobo ezintathu zamadada (Eurasian Wigeon Mareca penelope, Falcated Duck M. falcata and Northern Pintail Anas acuta) sisebenzisa iitransmitters zeGPS, sivavanya umahluko phakathi kwamachibi amabini makhulu kunye namanye amachibi amancinci akwindawo yokuhlala amadada, ubude bexesha lokuhlala kwidike ngalinye kunye nemigama yemihla ngemihla yeentaka ezithegiweyo zishukunyiswa kwezi ndawo. I-Eurasian Wigeon kunye ne-Falcated Duck yahlala ixesha eliphindwe kahlanu kwaye iphantse yasebenzisa iintlobo zendalo yokuhlala yendalo kumachibi amabini amakhulu (91‒95% yeendawo) xa kuthelekiswa nobude bexesha lokuhlala kumachibi amancinci, apho bachitha iintsuku ezingama-28‒33 ngokomndilili (ngaphandle kwendawo yokubamba) kwaye baxhaphaze uninzi lweendawo zokuhlala ezahlukeneyo ngaphandle kwe-%0 (5%). Uphononongo lwethu lolokuqala ukubonisa ukuba ubude obufutshane bokuhlala kunye nokusetyenziswa kwendawo yokuhlala eyahluka-hlukeneyo ngamadada kumachibi amancinci kunokuba negalelo ekuchazeni ukuhlangana okubonakalayo kommandla wamanani akhoyo kwezi kunye nezinye iintlobo kumachibi amakhulu kwiminyaka yakutshanje. Oku kuthelekiswa nokuncipha kobuninzi babo kumachibi amancinane, apho ukulahleka kwendawo yokuhlala kunye nokonakala kuye kwabonakala ngakumbi kunakumachibi amakhulu.