Peb ntseeg tau npaum li cas rau GPS kev taug qab cov tsiaj qus? Kev ntsuam xyuas ntawm cov tsiaj Crested Ibis Nipponia nippon uas tsis muaj neeg nyob ib nrab.

Phau ntawv xov xwm:PeerJ, 6, p.e5320.

Hom (Noog):Crested ibis (Nipponia nippon)

Cov Lus Qhia Txog:

GPS taug qab tau siv ntau dua rau kev kawm txog tsiaj qus hauv ob peb xyoos dhau los, tab sis nws qhov kev ua tau zoo tsis tau raug soj ntsuam tag nrho, tshwj xeeb tshaj yog rau cov khoom xa tawm tshiab uas tsis hnyav. Peb tau soj ntsuam qhov kev ua tau zoo ntawm yim lub GPS transmitters tsim nyob rau hauv Suav teb los ntawm kev txuas lawv rau Crested Ibises Nipponia nippon txwv rau ob lub tawb acclimation mimic qhov chaw nyob tiag tiag. Peb tau xam qhov deb ntawm GPS qhov chaw thiab lub hauv paus ntawm lub tawb ua qhov yuam kev qhov chaw, thiab siv 95% (95th percentile) qhov yuam kev qhov chaw los txhais qhov tseeb. Qhov kev vam meej qhov chaw nruab nrab yog 92.0%, uas yog siab dua li ntawm cov kev tshawb fawb yav dhau los. Qhov chaw tsis tau faib sib npaug los ntawm Qhov Chaw Class (LC), nrog rau LC A thiab B qhov chaw suav txog 88.7%. Qhov yuam kev qhov chaw pom 95% hauv qhov chaw ntawm LC A (9–39 m) thiab B (11–41 m) yog qhov tseeb heev, thaum txog li 6.9–8.8% ntawm qhov chaw tsis zoo tau pom hauv LC C thiab D nrog > 100 m lossis txawm tias > 1,000 m qhov yuam kev qhov chaw. Qhov kev vam meej thiab qhov tseeb ntawm qhov chaw sib txawv ntawm cov chaw sim, tej zaum vim yog qhov sib txawv ntawm cov qauv ntawm cov nroj tsuag. Yog li, peb sib cav tias cov transmitters uas tau sim tuaj yeem muab cov ntaub ntawv zoo rau kev tshawb fawb zoo, thiab ntau qhov chaw tsis zoo uas xav tau kev saib xyuas. Peb xav kom HPOD (kab rov tav dilution of precision) lossis PDOP (positional dilution of precision) yuav tsum tau tshaj tawm es tsis txhob LC ua qhov ntsuas qhov tseeb ntawm qhov chaw rau txhua qhov chaw kom ntseeg tau tias muaj kev txheeb xyuas thiab lim cov chaw tsis tsim nyog.