Kusiyana kwa nyengo ndi kuchuluka kwa anthu pa kusamuka kwa mbalame za Whimbrels ku East Asia-Australasian Flyway.

Magazini:Kafukufuku wa Avian, 11(1), tsamba 1-12.

Mitundu (ya mbalame):Whimbrels (Numenius phaeopus variegatus)

Chidule:

Kusunga mbalame zosamukira n'kovuta chifukwa chodalira malo osiyanasiyana akutali pa magawo osiyanasiyana a moyo wawo wa pachaka. Lingaliro la "flyway", lomwe limatanthauza madera onse omwe amakhudzidwa ndi kuswana, kusabereka, ndi kusamuka kwa mbalame, limapereka maziko a mgwirizano wapadziko lonse lapansi pakusunga zachilengedwe. Komabe, mu flyway yomweyi, ntchito zosamukira za mitundu yomweyi zimatha kusiyana kwambiri pakati pa nyengo ndi kuchuluka kwa mbalame. Kufotokozera kusiyana kwa nyengo ndi kuchuluka kwa mbalame pakusamuka kumathandiza kumvetsetsa za chilengedwe chosamukira komanso kuzindikira mipata yosungira zachilengedwe. Njira Pogwiritsa ntchito satellite-tracking tinatsata kusamuka kwa Whimbrels (Numenius phaeopus variegatus) kuchokera kumalo osaberekera ku Moreton Bay (MB) ndi Roebuck Bay (RB) ku Australia mu East Asian-Australasian Flyway. Mayeso a Mantel adagwiritsidwa ntchito pofufuza mphamvu ya kulumikizana kwa kusamuka pakati pa malo osaberekera ndi kusaberekera a MB ndi RB. Mayeso a Welch's t adagwiritsidwa ntchito poyerekeza zochitika zosamukira pakati pa mitundu iwiriyi komanso pakati pa kusamuka kumpoto ndi kumwera. Zotsatira Pa nthawi yosamukira kumpoto, mtunda ndi nthawi yosamukira zinali zazitali kwa anthu a MB kuposa anthu a RB. Mtunda ndi nthawi yoyendera koyamba paulendo wosamukira kumpoto zinali zazitali kwa anthu a MB kuposa anthu a RB, zomwe zikusonyeza kuti anthu a MB ankaika mafuta ambiri asanachoke pamalo osaberekera kuti athandizire ulendo wawo wautali wosaima. Anthu a RB anasonyeza kusagwirizana kofooka kwa kusamukira (malo oberekera omwe amafalikira m'malo otalikirana 60) kuposa anthu a MB (malo oberekera omwe amakhala m'malo otalikirana 5 ku Far Eastern Russia). Poyerekeza ndi anthu a MB, anthu a RB ankadalira kwambiri malo oimikapo ku Yellow Sea ndi madera a m'mphepete mwa nyanja ku China, komwe malo okhala mafunde atayika kwambiri. Komabe, chiwerengero cha mafunde chawonjezeka pomwe chiwerengero cha ma MB chatsika m'zaka makumi angapo zapitazi, zomwe zikusonyeza kuti kutayika kwa malo okhala mafunde pamalo oimikapo sikunakhudze kwambiri anthu a Whimbrel, omwe angagwiritse ntchito mitundu yosiyanasiyana ya malo okhala. Kusiyana kwa mitundu pakati pa anthu kungakhale chifukwa cha kuchuluka kwa kusaka m'malo awo oberekera. Mapeto Kafukufukuyu akuwonetsa kuti njira zosungira zachilengedwe zitha kukonzedwa bwino pomvetsetsa moyo wonse wa pachaka wa mayendedwe a mitundu yosiyanasiyana ya mbalame za Whimbrels komanso mwina mbalame zina zosamuka.