Urugero rw'amazi rugira ingaruka ku kuboneka kw'aho inyoni zo mu mazi zimuka ziri mu kaga ko kuhagera zigasanga ahantu heza ho kugaburira.

Ikinyamakuru:Ibyerekeye ibidukikije n'ubwihindurize, 7(23), pp.10440-10450.

Ubwoko (Inyoni):Ingagi nini y'umweru (Anser albifrons), ingagi ya Aswan (Anser cygnoides)

Incamake:

Ibishanga binini by’igihe gito ku kiyaga cya Poyang, byakozwe n’impinduka zikomeye mu gihe cy’amazi, bigize ahantu hanini ho kwimukira Anatidae mu Bushinwa mu gihe cy’itumba. Kugabanuka kw’ibishanga mu myaka 15 ishize byatumye hatangwa ibitekerezo byo kubaka urugomero rwa Poyang kugira ngo amazi y’itumba agume ari menshi mu kiyaga. Guhindura uburyo karemano bw’amazi bizagira ingaruka ku nyoni zo mu mazi zishingiye ku mpinduka z’amazi kugira ngo ibiryo biboneke kandi bigerweho. Twakurikiranye ubwoko bubiri bw’ingwe zifite imyitwarire itandukanye yo kugaburira (ingwe nini z’umweru zo mu bwoko bwa Anser albifrons [ubwoko bw’ibiryo] n’ingwe z’ingwe zo mu bwoko bwa Anser cygnoides [ubwoko bw’ibirayi]) mu gihe cy’itumba ribiri rifite urugero rw’amazi rutandukanye (ihungabana rikomeye mu 2015; amazi menshi mu 2016, nk’uko byari byarahanuwe nyuma y’urugomero rwa Poyang), dukora ubushakashatsi ku ngaruka z’impinduka z’urugero rw’amazi ku guhitamo aho ziba hashingiye ku bimera n’uburebure bwazo. Mu 2015, inkende z’umweru zakoresheje cyane mu buryo bukurikiranye imyenge y’ibimera, zirya inkende ngufi zifite intungamubiri, mu gihe inkende z’ibimera zacukuye ubutaka ku nkengero z’amazi kugira ngo zigere ku bimera. Iyi miterere ikomeye y’ibidukikije igaragaza ibiryo biri munsi y’amazi kandi igashyigikira gukura kwa graminoid mu gihe cy’igabanuka ry’amazi. Mu gihe cy’amazi menshi mu 2016, ubwoko bwombi bwahisemo inkende z’ibimera, ariko kandi ku rugero runini rw’aho ziba hamwe n’inkende z’ibimera za graminoid zisanzweho igihe kirekire kuko kubona ibimera n’imyenge mishya byagabanijwe mu gihe cy’amazi menshi. Inkende z’ibimera za graminoid zisanzweho igihe kirekire zitanga ibiryo by’amatungo bidafite ingufu nyinshi kuri ubwo bwoko bwombi. Kugabanya cyane aho ziba no kugumana ibimera bidafite inyungu nyinshi bitewe n’amazi menshi bishobora kugabanya ubushobozi bw’inkende bwo kwegeranya ibinure bihagije kugira ngo zimuke, bityo bikaba byagira ingaruka ku kubaho no kororoka nyuma yaho. Ibisubizo byacu bigaragaza ko amazi menshi mu kiyaga cya Poyang agomba kugumana mu mpeshyi, ariko akarekurwa buhoro buhoro, agashyira ahantu hashya mu gihe cy'itumba kugira ngo inyoni zo mu mazi zituruka mu matsinda yose y'ibiryo zigere ku buryo zibasha kubona aho zijya.