Phau ntawv xov xwm:Kev Tshawb Fawb Txog Dej Qab Zib, 64(6), nplooj ntawv 1183-1195.
Hom (Noog):Taum pauv (Anser fabalis), Lesser dawb-pem hauv ntej goose (Anser erythropus)
Cov Lus Qhia Txog:
Qhov kev hloov pauv ntawm ib puag ncig uas tib neeg ua rau muaj kev cov nyom loj heev rau cov tsiaj qus. Lub peev xwm ntawm cov tsiaj qus los hloov kho rau kev hloov pauv ib puag ncig muaj cov txiaj ntsig tseem ceeb rau lawv txoj kev noj qab haus huv, kev ciaj sia, thiab kev yug me nyuam. Kev hloov pauv tus cwj pwm, kev hloov pauv tam sim ntawd ntawm tus cwj pwm los teb rau qhov sib txawv ntawm ib puag ncig, tej zaum yuav tseem ceeb heev rau kev daws teeb meem kev hloov pauv ntawm tib neeg. Lub hom phiaj tseem ceeb ntawm txoj kev tshawb fawb no yog los ntsuas qhov kev teb ntawm ob hom goose caij ntuj no (taum goose Anser fabalis thiab goose dawb-fronted Anser erythropus) rau qhov chaw nyob tsis zoo ntawm cov pej xeem los ntawm kev kawm txog kev nrhiav zaub mov. Tsis tas li ntawd, peb tau sim seb qhov kev hloov pauv tus cwj pwm puas tuaj yeem hloov pauv trophic niche. Peb tau piav qhia txog tus cwj pwm nrhiav zaub mov thiab xam txhua hnub ntawm tsev (HR) ntawm cov geese siv cov ntaub ntawv taug qab thoob ntiaj teb. Peb tau xam cov cheeb tsam ellipse txheem los ntsuas qhov dav niche siv cov nqi δ13C thiab δ15N ntawm cov geese ib leeg. Peb txuas qhov kev hloov pauv tus cwj pwm nrog qhov zoo ntawm qhov chaw nyob siv ANCOVA (kev tshuaj xyuas ntawm covariance) qauv. Peb kuj tau sim qhov sib raug zoo ntawm cov cheeb tsam ellipse txheem thiab HR siv ANCOVA qauv. Peb pom muaj qhov sib txawv tseem ceeb ntawm cov geese noj zaub mov ntawm ntau xyoo hauv lawv thaj chaw noj zaub mov txhua hnub, qhov deb thiab ceev, thiab lub kaum sab xis. Tshwj xeeb, cov noog tau nce lawv thaj chaw noj zaub mov kom txaus siab rau lawv qhov kev xav tau txhua hnub los teb rau cov xwm txheej tsis zoo ntawm qhov chaw nyob. Lawv ya ntau dua thiab mus ncig sai dua thiab ntev dua txhua hnub. Rau cov goose dawb-fronted tsawg dua uas yuav ploj mus, txhua yam kev hloov pauv tus cwj pwm tau cuam tshuam nrog qhov zoo ntawm qhov chaw nyob. Rau cov goose taum, tsuas yog HR thiab lub kaum sab xis tau cuam tshuam nrog qhov zoo ntawm qhov chaw nyob. Cov noog, tshwj xeeb tshaj yog cov goose dawb-fronted tsawg dua, tej zaum yuav muaj qhov chaw trophic siab dua nyob rau hauv cov xwm txheej tsis zoo. Peb cov kev tshawb pom qhia tau hais tias cov geese caij ntuj no tau qhia txog qib siab ntawm kev coj cwj pwm plasticity. Txawm li cas los xij, kev coj cwj pwm noj zaub mov ntau dua nyob rau hauv cov xwm txheej tsis zoo tsis ua rau muaj qhov chaw trophic dav dua. Kev muaj nyob hauv qhov chaw nyob yuav yog lub luag haujlwm rau cov lus teb sib txawv ntawm kev noj zaub mov HR thiab isotopic niche rau tib neeg ua rau muaj kev hloov pauv ib puag ncig. Yog li ntawd, kev tswj hwm cov dej ntuj thaum lub sijhawm tseem ceeb (piv txwv li Lub Cuaj Hli-Kaum Ib Hlis) kom ntseeg tau tias cov khoom noj khoom haus zoo muaj yog qhov tseem ceeb rau yav tom ntej ntawm cov pej xeem ntawm geese hauv East Asian-Australasian Flyway.
TSAB NTAWV MUAB TAU NTAWM:
https://doi.org/10.1111/fwb.13294
