Iintlobo (zeentaka):Iihansi zeSwan (Anser cygnoides)
Ijenali:Ukuva okukude
Isishwankathelo:
Iindawo zokuhlala zibonelela ngendawo ebalulekileyo kwiintaka ezifudukayo ukuze ziphile kwaye zizale. Ukuchonga iindawo zokuhlala ezinokubakho kumanqanaba omjikelo wonyaka kunye nezinto ezichaphazelayo kubalulekile ekulondolozweni kwendlela ebhabhayo. Kolu phononongo, sifumene umkhondo wesathelayithi weehansi ezisibhozo ze-swan (Anser cygnoides) ezihlala ebusika ePoyang Lake (28°57′4.2″, 116°21′53.36″) ukusuka ngo-2019 ukuya ku-2020. Sisebenzisa imodeli yokusasazwa kweentlobo ze-Maximum Entropy, siphande ukusasazwa kweendawo zokuhlala ezinokubakho zeehansi ngexesha lomjikelo wazo wokufuduka. Sihlalutye igalelo elihambelanayo lezinto ezahlukeneyo zokusingqongileyo ekufanelekile kwendawo yokuhlala kunye nemeko yokulondolozwa kwendawo nganye enokubakho kwindlela ebhabhayo. Iziphumo zethu zibonisa ukuba iindawo zokuqala zasebusika zeehansi ze-swan zifumaneka kumbindi nasezantsi woMlambo iYangtze. Iindawo zokuma zazisasazeke kakhulu, ikakhulu kwiBohai Rim, kwiindawo eziphakathi zoMlambo iYellow, nakwiNortheast Plain, kwaye zanwenwela ngasentshona ukuya kwi-Inner Mongolia naseMongolia. Iindawo zokuzalela ikakhulu zikwi-Inner Mongolia nakwimpuma yeMongolia, ngelixa ezinye zisasazeke embindini nasentshona yeMongolia. Amanqanaba okufaka isandla kwizinto eziphambili zemvelo ahlukile kwiindawo zokuzalela, kwiindawo zokuma, nakwiindawo zokuzalela ebusika. Iindawo zokuzalela zichaphazeleke yithambeka, ukuphakama, kunye nobushushu. Ithambeka, isalathisi seenyawo zabantu, kunye nobushushu zezona zinto ziphambili ezichaphazele iindawo zokuma. Iindawo zokuzalela ebusika zimiselwe kukusetyenziswa komhlaba, ukuphakama, kunye nemvula. Imeko yolondolozo lweendawo zokuhlala yi-9.6% kwiindawo zokuzalela, i-9.2% kwiindawo zokuzalela ebusika, kunye ne-5.3% kwiindawo zokuma. Iziphumo zethu ke ngoko zibonelela ngovavanyo olubalulekileyo lwamazwe ngamazwe lokhuseleko lweendawo zokuhlala ezinokubakho kwiintlobo zeehansi kwi-East Asian Flyway.
IMPAPASHO IYAFUMANEKA KWI:
https://doi.org/10.3390/rs14081899
