He ʻōuli hou e pili ana i ka ukali e ʻike ai i nā wahi ʻai manawaleʻa no nā manu wai ʻai lau nahele.

Puke Pai:Nā Hōʻailona Kaiapuni, 99, pp.83-90.

ʻAno (Manu):ʻO ka nahelehele keʻokeʻo nui (Anser albifrons)

Pōkole:

ʻO ka hoʻolaha ʻana o nā kumuwaiwai meaʻai kahi mea nui i ke koho ʻana i kahi noho. Makemake nā manu wai herbivorous i nā mea kanu ulu mua (mai ka hoʻomaka ʻana o ka ulu ʻana o nā mea kanu a hiki i ka piko o ka biomass nutrient) no ka mea hāʻawi kēia i nā helu lawe ikehu kiʻekiʻe. ʻAʻole i hopu piha ʻia kēia pae hoʻomohala mea kanu e nā ʻōkuhi mea kanu i loaʻa mai ka satelite, e kālele ana i ka biomass mea kanu (e laʻa, Enhanced Vegetation Index, EVI) a i ʻole ka ulu ʻana o nā mea kanu ikaika (e laʻa, ka ʻokoʻa EVI ma waena o kēia manawa a me ka lā ma mua, diffEVI). No ka hoʻomaikaʻi ʻana i ka palapala ʻana i nā wahi hānai kūpono no nā manu wai herbivorous, ke hāpai nei mākou i kahi ʻōkuhi ulu mea kanu hou e pili ana i ka satelite o ka ulu ʻana o nā mea kanu mua (ESPG). Ke kuhi nei mākou makemake nā manu wai herbivorous i nā mea kanu i kahi pae hoʻomohala mua i ka wā ulu a koho i nā mea kanu me ka hopena hope o ESPG i ka wā ulu ʻole. Hoʻohana mākou i ka ʻikepili hahai satelite o 20 mau geese keʻokeʻo nui (Anser albifrons) e hoʻoilo ana ma ke kahawai ʻo Yangtze e hōʻoia i kā mākou mau wānana. Kūkulu mākou i nā kumu hoʻohālike linear laulā no nā hoʻolaha ʻana o nā ʻuo i ka wā ulu a me nā kau ulu ʻole a hoʻohālikelike i ka hana o ESPG i nā ʻōkuhi ulu mea kanu i hoʻohana pinepine ʻia (EVI a me diffEVI). I ka wā ulu, hiki i ka ESPG ke wehewehe i 53% o ka ʻokoʻa i ka hoʻolaha ʻana o nā ʻuo, e ʻoi aku ana ma mua o EVI (27%) a me diffEVI (34%). I ka wā ulu ʻole, ʻo ka hopena wale nō o ESPG ka mea e hoʻopilikia nui i ka hoʻolaha ʻana o nā ʻuo, e wehewehe ana i 25% o ka ʻokoʻa (ESPG: AUC = 0.78; EVI: AUC = 0.58; diffEVI: AUC = 0.58). Hiki ke hoʻohana ʻia ka ʻōkuhi ulu mea kanu hou ʻo ESPG e hoʻomaikaʻi i nā kumu hoʻohālike o nā hoʻolaha ʻana o nā manu wai herbivorous a no laila e kākoʻo i nā hana i ka mālama ʻana i nā manu wai a me ka hoʻokele ʻana i ka ʻāina pulu.