Lehae la mariha le ts'ebeliso ea bolulo ea whooper swans (Cygnus cygnus) e Sanmenxia Wetland, China.

Journal:Ecological Research, 34 (5), leqepheng la 637-643.

Mefuta (Avian):Whooper swans (Cygnus cygnus)

Kakaretso:

Sebaka sa lehae le ts'ebeliso ea bolulo ke likarolo tse bohareng tsa tikoloho ea linonyana, 'me lithuto tse mabapi le likarolo tsena li tla thusa bakeng sa paballo le taolo ea palo ea linonyana. Li-swan tse mashome a tšeletseng a metso e supileng e ne e le mokhoa oa ho beha maemo lefatšeng ka bophara ho Sanmenxia Wetland ea Profinseng ea Henan ho fumana lintlha tse qaqileng tsa sebaka mariha ho tloha 2015 ho ea ho 2016. Boholo ba malapa a li-swans e ne e le kholo ka ho fetisisa nakong ea mariha a bohareng 'me e lateloa ke nako ea pele le ea morao,' me boholo bo ne bo fapane haholo har'a linako tse tharo tsa mariha. Ho ne ho e-na le phapang e khōlō tšebelisong ea bolulo pakeng tsa linako tse fapaneng tsa mariha. Nakong ea pele, li-swans li ne li sebelisa joang bo metsing le libaka tsa limela tse ntseng li hlaha, 'me haholo-holo li ne li itšetlehile ka tlatsetso ea maiketsetso ka lebaka la khaello ea libaka tsa tlhaho tsa phepo nakong ea bohareng. Nakong ea morao, li-swans li ne li sebelisa sebaka se sa tsoa hlaha sa joang bo sa tsoa hlaha. Ntle le metsi a tebileng, tšebeliso ea maemo a mang a metsi e ne e fapane haholo pakeng tsa linako tse fapaneng tsa mariha. Mathoasong a nako ea mariha, li-swans li ne li rata libaka tse tlaase le tse phahameng tsa metsi; nakong e bohareng, haholo-holo ba ne ba le libakeng tsa metsi a mahareng le a phahameng 'me ba ne ba sebelisa libaka tsohle tsa metsi ntle le metsi a tebileng nakong ea mariha ea ho qetela. Ho ile ha fihleloa qeto ea hore limela tse ling li ratoa ke li-swans, tse kang lehlaka, cattails le barnyard grass, le hore botebo ba metsi bo lokela ho ba bo loketseng bakeng sa li-swans, ka metsi a mangata a fapana ho ea ka gradient.