Ijenali:I-Ecology Yomhlaba Wonke kanye Nokulondolozwa, uMqulu 49, uJanuwari 2024, e02802
Izinhlobo:i-Greater White-fronted Goose kanye ne-Bean Goose
Isifinyezo:
ELake Poyang, indawo enkulu kunazo zonke futhi ebaluleke kakhulu yokuchitha ubusika e-East Asian-Australasian Flyway, amadlelo eCarex (Carex cinerascens Kük) anikeza umthombo oyinhloko wokudla kwamahansi asebusika. Kodwa-ke, ngenxa yokulawulwa okuqinile kwemifula kanye nezehlakalo zezulu ezimbi kakhulu ezifana nesomiso, ubufakazi bokubuka busikisela ukuthi ukuhambisana kokufuduka kwamahansi kanye ne-phenology yeCarex bekungeke kugcinwe ngaphandle kokungenelela kwabantu, okubeka ingozi enkulu yokuntuleka kokudla ngesikhathi sasebusika. Ngenxa yalokho, ukubaluleka kokulondolozwa kwamanje kule ndawo yaseRamsar kushintshelwe ekuthuthukisweni kwamadlelo amanzi ukuqinisekisa ikhwalithi yokudla efanele. Ukuqonda okuthandwa ukudla kwamahansi asebusika kuyisihluthulelo sokuphathwa kwamadlelo amanzi ngempumelelo. Njengoba isigaba sokukhula kanye nezinga lezakhamzimba zezitshalo zokudla kuyizinto ezibalulekile ezithonya ukukhethwa kokudla kwezilwane ezidla uhlaza, kulolu cwaningo, sihlole ukudla okuthandwayo ngokulandela izindlela zokudla ze-Greater White-fronted Goose (n = 84) kanye ne-Bean Goose (n = 34) ukuze silinganise "ifasitela lokudla" maqondana nokuphakama kwezitshalo, izinga lamaprotheni, kanye nokuqukethwe kwamandla. Ngaphezu kwalokho, sakha ubudlelwano phakathi kwezinto ezintathu ezingenhla ze-Carex ngokusekelwe ekulinganisweni kwendawo. Imiphumela ikhombisa ukuthi amahansi athanda izitshalo ezinobude obusukela ku-2.4 kuya ku-25.0 cm, kanye nokuqukethwe kwamaprotheni kusuka ku-13.9 kuya ku-25.2 %, kanye nokuqukethwe kwamandla kusuka ku-1440.0 kuya ku-1813.6 KJ/100 g. Ngenkathi okuqukethwe kwamandla ezitshalo kukhuphuka ngokuphakama, ubudlelwano bezinga lokuphakama namaprotheni abulungile. Ama-curve okukhula aphambene abonisa inselelo yokulondolozwa ukuze kulondolozwe ibhalansi ebucayi phakathi kwenani kanye nezidingo zekhwalithi zamahansi asebusika. Ukuphathwa kwe-Carex meadow, njengokugunda utshani, kufanele kugxile ekwenzeni ngcono isikhathi sokusebenza ukuze kwandiswe ukuhlinzekwa kwamandla ngenkathi kugcinwa izinga elifanele leprotheyini ukuze izinyoni ziphile isikhathi eside, zizalane futhi ziphile isikhathi eside.
ISINCWADI SITHOLAKALA KU:
https://www.sciencedirect.com/science/article/pii/S2351989424000064?via%3Dihub
