Ese umubare w'inguge zo mu gasozi ugabanuka mu Bushinwa ni 'imfungwa' z'aho ziba?

Ikinyamakuru:Ubumenyi bw'ibinyabuzima bw'ubu, 27 (10), pp. R376-R377.

Ubwoko (Inyoni):Ingagi zo mu bwoko bwa Swan (Anser cygnoides), Tundra ibishyimbo bya Tundra (Anser serrirostris), Ingagi nini yera imbere-yera (Anser albifrons), ingagi ntoya yera yera (Anser erythropus), ingagi ya greylag (Anser anser)

Incamake

Nubwo umubare w’ingagi zo mu gasozi zibera mu gihe cy’itumba muri Amerika ya Ruguru no mu Burayi urushaho kwiyongera bitewe no gukoresha ubutaka bw’ubuhinzi, izo mu Bushinwa (zisa n’aho zibera mu bishanga bisanzwe) muri rusange zirimo kugabanuka. Ibikoresho bya Telemetry byashyizwe ku ngano 67 zo mu gasozi zibera mu gihe cy’itumba mu moko atanu atandukanye y’ibishanga mu bishanga bitatu by’ingenzi mu gace k’amazi k’uruzi rwa Yangtze (YRF), mu Bushinwa kugira ngo hamenyekane aho zigomba gukoreshwa. Ingagi 50 zo mu bwoko butatu zagabanutse hafi ya zose zabaga zibera mu bishanga bisanzwe buri munsi; Ingagi 17 zo mu bwoko bubiri bwagaragaje imiterere ihamye zakoresheje ibishanga 83% na 90% by’igihe, ubundi zigakoresha ubutaka bw’ubuhinzi. Ibi byavuye mu bushakashatsi byemeza ko ubushakashatsi bwakozwe mbere buhuza igabanuka ry’ingagi zo mu Bushinwa zibera mu gihe cy’itumba no gutakaza aho ziba no kwangirika kw’ibiribwa bigira ingaruka ku itunganywa ry’ibiribwa. Ibi bisubizo kandi bigira uruhare mu gusobanura imiterere mibi y’ingagi zo mu Bushinwa zibera mu gihe cy’itumba ugereranije n’izindi ngagi zibera mu gihe cy’itumba muri Koreya n’Ubuyapani, Uburengerazuba bw’u Burayi na Amerika ya Ruguru, zigaburira hafi ubutaka bw’ubuhinzi gusa, zibohora ku ntege nke z’abaturage mu gihe cy’itumba.