Maonekedwe a pachaka a Far East Greylag Geese (Anser anser rubrirostris) omwe amawululidwa ndi GPS tracking.

Magazini:Sayansi ya zinyama yophatikizana, 15(3), tsamba 213-223.

Mitundu (ya mbalame):Tsekwe wa Greylag kapena tsekwe wa graylag (Anser anser)

Chidule:

Atsekwe makumi awiri a Far East Greylag, Anser anser rubrirostris, adagwidwa ndikuyikidwa zida zolembera mitengo za Global Positioning System/Global System for Mobile Communications (GPS/GSM) kuti adziwe malo oberekera ndi ogona m'nyengo yozizira, njira zosamukira ndi malo ogona. Deta ya telemetry kwa nthawi yoyamba idawonetsa kulumikizana pakati pa madera awo achisanu a Mtsinje wa Yangtze, malo ogona kumpoto chakum'mawa kwa China, ndi malo oberekera/kusungunuka kum'mawa kwa Mongolia ndi kumpoto chakum'mawa kwa China. 10 mwa anthu 20 omwe adatchulidwa adapereka deta yokwanira. Adayima paulendo wosamukira ku Yellow River Estuary, Beidagang Reservoir ndi Xar Moron River, kutsimikizira madera awa kuti ndi malo ofunikira ogona kwa anthuwa. Nthawi yapakati yosamukira masika inali masiku 33.7 (anthu adayamba kusamuka pakati pa 25 February ndi 16 March ndipo adamaliza kusamuka kuyambira 1 mpaka 9 Epulo) poyerekeza ndi masiku 52.7 mu autumn (26 September-13 October mpaka 4 November-11 December). Nthawi yapakati yoyima inali masiku 31.1 ndi 51.3 ndipo liwiro lapakati la ulendo linali 62.6 ndi 47.9 km/tsiku pa ulendo wa masika ndi autumn, motsatana. Kusiyana kwakukulu pakati pa kusamuka kwa masika ndi autumn pa nthawi yosamuka, nthawi yoyima ndi liwiro la kusamuka kunatsimikizira zomwe zidalembedwa kuti Greylag Geese wamkulu amayenda mofulumira masika kuposa autumn, kuchirikiza lingaliro lakuti ayenera kukhala ndi nthawi yochepa panthawi yosamuka kwa masika.