Urwego rwamazi rugira ingaruka kuboneka ahantu heza ho kugaburira inyoni zimuka zibangamiwe

Ikinyamakuru:Ibidukikije nihindagurika, 7 (23), pp.10440-10450.

Ubwoko (Avian):Ingagi nini yera-imbere (Anser albifrons), Ingagi ya Aswan (Anser cygnoides)

Ibisobanuro:

Igishanga kinini cya ephemeral ku kiyaga cya Poyang, cyatewe n’imihindagurikire y’ibihe mu rwego rw’amazi, ni cyo kibanza cy’itumba cy’imvura Anatidae yimukira mu Bushinwa. Kugabanuka mu gishanga mu myaka 15 ishize byatumye habaho icyifuzo cyo kubaka urugomero rwa Poyang kugirango rugumane amazi maremare mu kiyaga. Guhindura sisitemu ya hydrologiya isanzwe bizagira ingaruka ku nyoni zo mu mazi ziterwa n’imihindagurikire y’amazi kugirango ibiryo biboneke kandi bigerweho. Twakurikiranye amoko abiri y'ingagi afite imyitwarire itandukanye yo kugaburira (binini byera - imbere y’inyamanswa Anser albifrons [ubwoko bwo kurisha] hamwe n’ingurube zo mu bwoko bwa Anser cygnoides [tuber - kugaburira amoko]) mu gihe cyizuba bibiri bitandukanye n’amazi atandukanye (ubukungu bwifashe nabi muri 2015; amazi maremare mu mwaka wa 2016, asa n’ahantu hahanuwe - Urugomero rwa Poyang), dukora ubushakashatsi ku ngaruka z’imihindagurikire y’amazi zishingiye ku guhitamo kw’ahantu. Muri 2015, ingagi zera - zashyizwe imbere zikoreshwa cyane mu byondo, zikagaburira ibiryo bigaburira intungamubiri za graminoide, mu gihe ingagi zo mu bwoko bwa swan zacukuye insimburangingo ku nkombe z’amazi y’ibijumba. Iyi ecotone ifite imbaraga zikomeye zikurikirana ibiryo byamazi kandi bigashyigikira imikurire ya Graminoide hakiri kare mugihe amazi yagabanutse. Mu gihe cy’amazi maremare mu mwaka wa 2016, amoko yombi yahisemo ibyondo, ariko kandi no ku rwego runini rw’imiturire ifite igihe kirekire cy’ibihe bya graminoide kubera ko kubona ibirayi no gukura kwa graminoide byari bibujijwe mu gihe cy’amazi menshi. Igihe kirekire cyashizweho na graminoide itanga ibyatsi bidafite inyungu kubwoko bwombi. Kugabanuka gukabije kubuturo bukwiye no gufungirwa mu bwatsi butabyara inyungu n’amazi menshi birashoboka ko bigabanya ubushobozi bw’inyamanswa zo gukusanya amaduka ahagije yo kwimuka, hamwe n’ingaruka zishobora guterwa no kubaho no kubyara. Ibisubizo byacu byerekana ko amazi menshi mu kiyaga cya Poyang agomba kugumana mu gihe cyizuba, ariko akemererwa kugenda gahoro gahoro, agaragaza uduce dushya mu gihe cyitumba kugira ngo inyoni z’amazi zitangwe n’amashyirahamwe yose agaburira.