Kala duwanaanshaha xilliga iyo dadweynaha ee socdaalka Whimbrels ee Bariga Aasiya-Astralasia Flyway.

Joornaalka:Cilmi-baarista Avian, 11 (1), pp.1-12.

Noocyada (Avian):Whimbrels (Numenius phaeopus variegatus)

Soo koobid:

Ilaalinta shimbiraha guurguura waa mid adag sababtoo ah waxay ku tiirsan yihiin goobo fogfog heerar kala duwan oo ah meertada nololeed ee sanadlaha ah. Fikradda "Flyway", taas oo tixraacaysa dhammaan meelaha ay daboolaan taranta, taran la'aanta, iyo haajiridda shimbiraha, waxay bixisaa qaab iskaashi caalami ah oo ilaalin ah. Isla jidka duullimaadka, si kastaba ha ahaatee, hawlaha socdaalka ee isku nooc ayaa si weyn u kala duwanaan kara inta u dhaxaysa xilliyada iyo dadka. In la caddeeyo kala duwanaanshaha xilliyeed iyo dadwayne ee socdaalka waxay caawinaysaa fahamka bay'ada socdaalka iyo garashada daldaloolada ilaalinta. Hababka Isticmaalka raadinta dayax-gacmeedka waxaan la soconnay socdaalka Whimbrels (Numenius phaeopus variegatus) ee ka yimid goobaha aan taranka ahayn ee Moreton Bay (MB) iyo Roebuck Bay (RB) ee Australia ee Bariga Aasiya–Australasian Flyway. Tijaabooyin Mantel ah ayaa loo isticmaalay in lagu falanqeeyo xoogga isku xidhka socdaalka ee ka dhexeeya goobaha taranta iyo taranta ee MB iyo RB. Tijaabada Welch's t waxaa loo adeegsaday isbarbardhigga dhaqdhaqaaqyada socdaalka ee u dhexeeya labada dad iyo inta u dhaxaysa socdaalka waqooyi iyo koonfurta. Natiijooyinka Intii lagu jiray socdaalka waqooyi, fogaanta socdaalka iyo muddada ayaa ka dheerayd dadweynaha MB marka loo eego dadweynaha RB. Fogaanta iyo muddada duullimaadka lugtii hore intii lagu jiray socdaalka waqooyi ayaa ka dheeraa dadka MB marka loo eego dadka RB, taasoo soo jeedinaysa in shakhsiyaadka MB ay kaydiyeen shidaal badan ka hor inta aysan ka dhoofin goobaha aan taranka ahayn si ay u taageeraan duullimaadkooda dheer ee aan joogsiga lahayn. Dadweynaha RB waxay muujiyeen isku xirnaanta socdaalka daciifka ah (goobaha taranka ee ku kala firirsan tiro dhan 60 longitudes) marka loo eego dadweynaha MB (goobaha taranta oo xoogga saaraya tiro dhan 5 longitudes oo ku yaal Bariga Fog ee Ruushka). Marka la barbar dhigo dadka MB, dadka RB waxay aad ugu tiirsanaayeen goobaha joogsiga ee Badda Jaallaha ah iyo gobollada xeebaha ee Shiinaha, halkaas oo deegaanka barafku uu la kulmay khasaare aad u weyn. Si kastaba ha ahaatee, dadka RB ayaa kordhay halka tirada MB ay hoos u dhacday tobannaankii sano ee la soo dhaafay, taas oo soo jeedinaysa in luminta degaannada qulqulka ee goobaha joogsiga ay saameyn yar ku yeelatay dadka Whimbrel, kuwaas oo isticmaali kara noocyo kala duwan oo degaan. Isbeddellada kala duwan ee u dhexeeya dadweynaha ayaa laga yaabaa inay sabab u tahay heerarka kala duwan ee cadaadiska ugaarsiga ee dhulkooda. Gabagabo Daraasadani waxay iftiimisay in tillaabooyinka ilaalinta lagu horumarin karo iyadoo la fahmayo wareegga nolosha ee sannadlaha ah ee buuxa ee dhaqdhaqaaqa dadyow badan oo Whimbrels ah iyo malaha shimbiraha kale ee socdaalka ah.