Izinhlobo (Izinyoni):I-Great Bustard (Otis tarda)
IjenaliJ:yethu ye-Ornithology
Abstract:
I-Great Bustard (i-Otis tarda) ibamba umehluko wenyoni enzima kakhulu ukufuduka kanye nezinga elikhulu kakhulu le-dimorphism yobukhulu bobulili phakathi kwezinyoni eziphilayo. Nakuba ukufuduka kwezinhlobo zezilwane kuye kwaxoxwa kabanzi ezincwadini, abacwaningi abazi okuncane mayelana namaphethini okufuduka kwezinhlobo ezincane zase-Asia (Otis tarda dybowskii), ikakhulukazi abesilisa. Ngo-2018 nango-2019, sathwebula ama-O. t ayisithupha. dybowskii (abesilisa abahlanu nensikazi eyodwa) ezindaweni zabo zokuzalela empumalanga yeMongolia futhi bamake ngama-satellite transmitters e-GPS-GSM. Lokhu kungokokuqala ukuthi ama-Great Bustards ezinhlobo ezincane ezisempumalanga alandelelwe empumalanga yeMongolia. Sithole umehluko wobulili emaphethini okufuduka: abesilisa baqala ukufuduka kamuva kodwa bafika ngaphambi kwesikhathi kunabesifazane entwasahlobo; abesilisa babeno-1/3 wesikhathi sokufuduka futhi babehamba cishe nge-1/2 yebanga lensikazi. Ukwengeza, ama-Great Bustards abonise ukwethembeka okuphezulu ezindaweni zabo zokuzalanisa, ukuzalanisa, kanye nezindawo zasebusika. Ukuze ukongiwe, kuphela u-22.51% wokulungiswa kwendawo ye-GPS yama-bustards abengaphakathi kwezindawo ezivikelekile, futhi ngaphansi kuka-5.0% ezindaweni zasebusika nangesikhathi sokufuduka. Phakathi neminyaka emibili, ingxenye yama-Great Bustards esiwalandele yafa ezindaweni zabo zasebusika noma ngesikhathi sokufuduka. Sincoma ukuthi kusungulwe izindawo ezivikelwe kakhudlwana ezindaweni zasebusika futhi kuhanjiswe kabusha noma izintambo zikagesi ezingaphansi komhlaba ezindaweni lapho ama-Great Bustards asabalaliswe khona ukuze kuqedwe ukungqubuzana.
OKUSHICILELAYO OKUTHOLAKALA KWA:
https://doi-org.proxy-ub.rug.nl/10.1007/s10336-022-02030-y
