Ijenali:I-Ecological Research, 34 (5), amakhasi 637-643.
Izinhlobo (Izinyoni):I-Whooper swans (Cygnus cygnus)
Abstract:
Uhla lwasekhaya kanye nokusetshenziswa kwezindawo zokuhlala kuyizici ezibalulekile zemvelo yezinyoni, futhi ucwaningo ngalezi zici luyoba usizo ekongiweni nasekulawuleni inani lezinyoni. Amadada angamashumi ayisithupha nesikhombisa ayewuhlelo lokuma komhlaba wonke olumakwe e-Sanmenxia Wetland yaseSifundazweni sase-Henan ukuze kutholwe idatha yendawo enemininingwane ebusika kusukela ngo-2015 kuya ku-2016. Usayizi wekhaya lamadadakazi wawumkhulu kakhulu phakathi nesikhathi sobusika obumaphakathi futhi ulandelwa yinkathi yokuqala nesikhathi sekwephuzile, futhi osayizi babehluke kakhulu phakathi kwezikhathi ezintathu zasebusika. Kube nomehluko omkhulu ekusetshenzisweni kwendawo yokuhlala phakathi kwezikhathi zasebusika ezihlukene. Esikhathini sokuqala, ama-swans ikakhulukazi ayesebenzisa utshani basemanzini kanye nezindawo zezitshalo ezisafufusa, futhi ayethembele kakhulu ekwandiseni okuzenzela ngenxa yokuntuleka kwezindawo zokudla zemvelo phakathi nenkathi ephakathi. Esikhathini esidlule, amadada ayesebenzisa kakhulu indawo yotshani obusanda kuvela emhlabeni. Ngaphandle kwamanzi ajulile, ukusetshenziswa kwamanye amazinga amanzi kwakuhluke kakhulu phakathi nezikhathi ezahlukene zasebusika. Esikhathini sokuqala sasebusika, amadada ayethanda izindawo ezisezingeni eliphansi neziphakeme; enkathini emaphakathi, ikakhulukazi babesezindaweni ezimaphakathi neziphakeme zamanzi futhi basebenzise zonke izindawo ezisezingeni lamanzi ngaphandle kwezinga lamanzi ajulile ekupheleni kwesikhathi sobusika. Kwaphethwa ngokuthi ezinye izitshalo zikhethwa amadada, njengomhlanga, i-catatails notshani be-barnyard, nokuthi ukujula kwamanzi kufanele kulungele amadada, amazinga amanzi ehluka ngokuhluka kwe-gradient.
OKUSHICILELAYO OKUTHOLAKALA KWA:
https://doi.org/10.1111/1440-1703.12031
