Ikinyamakuru:Ibipimo by’ibidukikije, 99, pp.83-90.
Ubwoko (Avian):Ingagi nini yera-imbere (Anser albifrons)
Ibisobanuro:
Isaranganya ry'umutungo w'ibiribwa ni ikintu cy'ingenzi mu guhitamo aho gutura. Inyoni zo mu mazi zikomoka ku bimera zikunda ibihingwa bikura hakiri kare (kuva ikura ry’ibimera bikagera ku mpinga ya biomass yintungamubiri) kuko ibyo bitanga ingufu nyinshi. Iki cyiciro cyo guteza imbere ibimera ntabwo gifashwe neza nubushakashatsi bukoreshwa n’ibicuruzwa bikomoka ku cyogajuru, byibanda ku bimera by’ibimera (urugero, Ikigereranyo cy’ibimera byongerewe imbaraga, EVI) cyangwa gukura kw'ibimera bikora (urugero, EVI itandukanye hagati y'itariki n'iyabanjirije, diffEVI). Kugirango tunonosore ikarita y’ahantu heza ho kurisha inyoni z’amazi y’ibyatsi, turasaba icyerekezo gishya cyerekana icyogajuru cyerekana imikurire y’ibimera hakiri kare (ESPG). Turakekeranya ko inyoni zo mu mazi zikomoka ku bimera zikunda ibimera mugihe cyiterambere hakiri kare mugihe cyikura hanyuma tugahitamo ibimera bifite iherezo rya ESPG mugihe kitarakura. Twifashishije ibyogajuru bikurikirana amakuru yinyamanswa 20 nini yera yera (Anser albifrons) itumba mu kibaya cyumugezi wa Yangtze kugirango twemeze ibyo tuvuga. Twubaka imiterere rusange yumurongo wo gukwirakwiza ingagi mugihe cyikura nigihe kidakura kandi tugereranya imikorere ya ESPG nibisanzwe bikoreshwa mubikura (EVI na diffEVI). Mugihe cyikura, ESPG irashobora gusobanura 53% yo gutandukana mugukwirakwiza ingagi, irusha EVI (27%) na diffEVI (34%). Mugihe cyigihe kidakura, gusa iherezo rya ESPG rigira uruhare runini mugukwirakwiza ingagi, bisobanura 25% byibitandukanye (ESPG: AUC = 0,78; EVI: AUC = 0.58; diffEVI: AUC = 0.58). Ikimenyetso gishya cyo gukura kw'ibimera ESPG gishobora gukoreshwa mugutezimbere uburyo bwo gukwirakwiza inyoni z’ibimera bityo rero bigashyigikira ingamba zo kubungabunga inyoni z’amazi no gucunga ibishanga.
ITANGAZO RISHOBORA KUBONA:
https://doi.org/10.1016/j.ecolind.2018.12.016
