Ukudibanisa idatha yokulandelela yanamhlanje kunye neengxelo zembali kuphucula ukuqonda iindawo zokuhlala zasehlotyeni ze-Eastern Lesser White-fronted Goose Anser erythropus.

Iintlobo (zeentaka):IGoose eNcinci emhlophe (iAnser erythropus)

Ijenali:I-Ecology kunye nokuZivela kwezinto

Isishwankathelo:

I-Lesser White-fronted Goose (Anser erythropus), eyona incinci kwiihansi "ezingwevu", idweliswe njengeZisengozini kwi-IUCN Red List kwaye ikhuselwe kuzo zonke iindawo zolu luhlu. Kukho amaqela amathathu, apho uninzi olufundwe kakhulu luluntu lwaseMpuma, olwabelwana phakathi kweRashiya neTshayina. Ukude kakhulu kweendawo zokuzalela kwenza ukuba zingafikeleleki kubaphandi. Njengendlela yokutyelela, ukulandelela iintaka kude kwiindawo zasebusika kuvumela ukuphononongwa koluhlu lwazo lwasehlotyeni. Kwiminyaka emithathu, kunye nezixhobo zokulandelela ezichanekileyo zeGPS, izilwanyana ezilishumi elinanye ze-A. erythropus zalandelwa ukusuka kwindawo ephambili yasebusika eTshayina, ukuya kwiindawo zasehlotyeni, nakwiindawo zokubeka izilwanyana kumantla-mpuma eRashiya. Idatha efunyenwe kuloo ndlela yokulandelela, eqiniswe luphando lomhlaba kunye neerekhodi zoncwadi, yasetyenziswa ukwenza umzekelo wokusasazwa kwe-A. erythropus ehlotyeni. Nangona uncwadi lwangaphambili luchaza uluhlu lwasehlotyeni oluneziqwenga, imodeli ibonisa ukuba uluhlu lweendawo zokuhlala zasehlotyeni oludibeneyo lunokwenzeka, nangona ukubonwa ukuza kuthi ga ngoku akunakuqinisekisa ukuba i-A. erythropus ikhona kulo lonke uluhlu olumiselweyo. Iindawo zokuhlala ezifanelekileyo zifumaneka kunxweme loLwandle lwaseLaptev, ikakhulu iLena Delta, kwiYana-Kolyma Lowland, kunye neendawo ezincinci ezisezantsi zaseChukotka ezinezandiso ezincinci zomlambo phezulu ecaleni kwemilambo emikhulu efana neLena, iIndigirka, kunye neKolyma. Amathuba okuba khona kwe-A. erythropus anxulumene neendawo ezinokuphakama okungaphantsi kwe-500 m ezineendawo ezimanzi ezininzi, ingakumbi iindawo zokuhlala zomlambo, kunye nemozulu enemvula yekota eshushu malunga ne-55 mm kunye nobushushu obuphakathi malunga ne-14°C ngoJuni-Agasti. Ukuphazamiseka kwabantu kukwachaphazela ukufaneleka kwendawo, kunye nokwehla kancinci kobukho beentlobo zezilwanyana kuqala malunga ne-160 km ukusuka kwiindawo zokuhlala zabantu. Ukulandelela iintlobo zezilwanyana kude kunokuvala umsantsa wolwazi ofunekayo ukuze kuqikelelwe ngokuqinileyo iipateni zokusasazwa kweentlobo kwiindawo ezikude. Ulwazi olungcono ngokusasazwa kweentlobo zezilwanyana lubalulekile ekuqondeni iziphumo ezinkulu zendalo yotshintsho olukhawulezileyo lwehlabathi kunye nokuseka amaqhinga olawulo lolondolozo.