Ijenali ye-Ornithology
Izinhlobo: Limosa limosa bohaii
Isifinyezo
Ukwehluka kobulili ngobukhulu bomzimba phakathi kwezinyoni zasogwini ngokuvamile kuhlotshaniswa nezindima zokuzala, kodwa ukwehluka okunjalo kungaholela ekwehlukeni kwemvelo phakathi nesikhathi esisele somjikelezo waminyaka yonke. Lapha, sihlola ukuthi abesilisa abancane nabesifazane abakhulu be-Bohai Black-tailed Godwits Limosa limosa bohaii bahlukile yini ekusetshenzisweni kwezindawo zokuhlala kanye nokuziphatha okunesigqi njengoba begcwalisa uphethiloli ogwini lwaseShayina ngesikhathi sokufuduka ngasenyakatho. Ngokusekelwe ekubonweni okubonakalayo, ukwanda kwamaphrofayili esisu kuqinisekisile ukugcwalisa uphethiloli endaweni yokutadisha yaseBohai Bay. Sisebenzisa i-GPS telemetry, sithole ukuthi abesilisa babevame ukutholakala ezindaweni ezisogwini kanye nasezindaweni eziseduze nosawoti, kanti abesifazane babesebenzisa izindawo eziningi zokuhlala, okuhlanganisa amanzi ahlanzekile kanye namanzi anosawoti amaningi ngaphakathi nezwe. Ekupheleni kuka-Ephreli nasekuqaleni kukaMeyi, abesifazane bathuthela kancane kancane kulezi zindawo zokuhlala ngaphakathi nezwe. Izilinganiso ze-Accelerometry zibonisa ukuthi ezindaweni ezisogwini, abesilisa nabesifazane babenamandla aphezulu okunyakaza eduze kwamaza aphezulu. Sichaza lokhu njengokubonakaliswa kokungaphumuli kwabo phakathi namahora ababecindezelwe ezindaweni ezincane ezisogwini eduze nomsebenzi omkhulu wabantu. Ezindaweni zokuhlala ezingezona ezogwini, ubulili bobabili bubonise isigqi esifanayo nesikhulu somsebenzi wezinsuku zonke, kanye nokuncipha kwamandla okunyakaza emahoreni asebusuku ngaphambi kokuphuma kwelanga. Amandla okunyakaza ezindaweni ezingaphakathi kwezwe aphindwe kabili lawo asezindaweni ezimanzi, mhlawumbe abonisa umsebenzi ophezulu wokufuna ukudla odingekayo ukuze kwaneliswe izidingo zokudla ngenxa yezilwane ezincane ezidla i-arthropod emasimini elayisi (izibungu zeChironomid) kanye nezindawo zokusebenzela usawoti (izibungu ze-brine fly), uma kuqhathaniswa nezilwane ezinkulu ezidla i-polychaete ezindaweni ezimanzi.
ISINCWADI SITHOLAKALA KU:
https://doi.org/10.1007/s10336-025-02355-4
