Ijenali:I-zoology edidiyelwe, 15(3), amakhasi 213-223.
Izinhlobo (zezinyoni):Ihansi iGreylag noma ihansi elimpunga (Anser anser)
Isifinyezo:
Ama-Greylag Geese angamashumi amabili aseMpumalanga Ekude, ama-Anser anser rubrirostris, athathwe futhi afakwa ama-logger e-Global Positioning System/Global System for Mobile Communications (GPS/GSM) ukuze kutholakale izindawo zokuzalela kanye nezokuhlala ebusika, imizila yokufuduka kanye nezindawo zokuma. Idatha ye-Telemetry okokuqala ibonise ukuxhumana phakathi kwezindawo zabo zasebusika zoMfula iYangtze, izindawo zokuma enyakatho-mpumalanga yeShayina, kanye nezindawo zokuzalela/zokubola empumalanga yeMongolia nasenyakatho-mpumalanga yeShayina. Abantu abayi-10 kwabangu-20 abaphawuliwe banikeze idatha eyanele. Bama lapho befuduka e-Yellow River Estuary, eBeidagang Reservoir naseMfuleni iXar Moron, okuqinisekisa ukuthi lezi zindawo ziyizindawo ezibalulekile zokuma kuleli nani labantu. Isikhathi esimaphakathi sokufuduka kwentwasahlobo sasiyizinsuku ezingu-33.7 (abantu baqale ukufuduka phakathi kuka-25 Febhuwari no-16 Mashi futhi baqeda ukufuduka kusukela mhla lu-1 kuya ku-9 Ephreli) uma kuqhathaniswa nezinsuku ezingu-52.7 ekwindla (26 Septhemba-13 Okthoba kuze kube mhla lu-4 Novemba-11 Disemba). Isikhathi esimaphakathi sokuma sasiyizinsuku ezingu-31.1 kanye nezingu-51.3 kanti isivinini esimaphakathi sokuhamba sasingu-62.6 kanye no-47.9 km/ngosuku sokufuduka kwentwasahlobo kanye nekwindla, ngokulandelana. Umehluko omkhulu phakathi kokufuduka kwentwasahlobo kanye nekwindla esikhathini sokufuduka, isikhathi sokuma kanye nesivinini sokufuduka kuqinisekisile lokho okushiwo yi-Greylag Geese yabantu abadala ukuthi bahambe ngokushesha entwasahlobo kunekwindla, okusekela umbono wokuthi kufanele banqunyelwe isikhathi esiningi ngesikhathi sokufuduka kwentwasahlobo.
ISINCWADI SITHOLAKALA KU:
https://doi.org/10.1111/1749-4877.12414
