Chinyorwa:Biology yeMvura Yakachena, 64(6), mapeji 1183-1195.
Mhando dzeshiri (Avian):Goose yebhinzi (Anser fabalis), Goose ine mativi machena madiki (Anser erythropus)
Pfupiso:
Kukurumidza kwekushanduka kwezvakatipoteredza kunokonzerwa nevanhu kunopa dambudziko guru kumhuka dzesango. Kukwanisa kwemhuka dzesango kugadzirisa shanduko dzezvakatipoteredza kune mhedzisiro yakakosha pahutano hwadzo, kurarama, uye kubereka. Kuchinjika kwemaitiro, kugadzirisa maitiro nekukurumidza zvichienderana nekusiyana kwezvakatipoteredza, kunogona kuve kwakakosha zvakanyanya pakubata nekuchinja kwevanhu. Chinangwa chikuru chechidzidzo ichi chaive chekuverenga mhinduro yemarudzi maviri egoose ari munguva yechando (goose bean Anser fabalis uye goose ane white-fronted Anser erythropus) kune mamiriro asina kunaka ekugara padanho revanhu nekudzidza maitiro ekutsvaga. Pamusoro pezvo, takaedza kana maitiro ekuchengetedza anogona kuchinja niche yetrophic. Takaratidza maitiro ekutsvaga uye takaverenga huwandu hwemba yezuva nezuva (HR) yemagoose tichishandisa data rekutevera system yepasi rose. Takaverenga nzvimbo dzakajairwa dzeellipse kuti tiverenge upamhi hweniche tichishandisa δ13C uye δ15N values yemagoose ega ega. Takabatanidza maitiro ekuchengetedza nehunhu hwenzvimbo dzekugara tichishandisa mamodheru eANCOVA (kuongorora kwecovariance). Takaedzawo hukama huripo pakati penzvimbo dzakajairwa dzeellipse neHR tichishandisa modheru yeANCOVA. Takawana mutsauko mukuru mumaitiro ekutsvaga mahanzi pakati pemakore munzvimbo yaanotsvaga zuva nezuva, daro rekufamba nekumhanya, uye kona yekutendeuka. Zvikuru, shiri dzakawedzera nzvimbo yadzo yekutsvagira kuti dzigutse simba radzo rezuva nezuva nekuda kwemamiriro ekugara asina kunaka. Dzaibhururuka zvakanyanya uye dzaifamba daro refu uye nekukurumidza zuva nezuva. Kune hanzi diki dzine fronted white, maitiro ese aibatanidzwa nehunhu hwenzvimbo yadzo. Kune hanzi bhinzi, HR chete nekona yekutendeuka ndizvo zvaienderana nehunhu hwenzvimbo yadzo. Shiri, kunyanya hanzi diki dzine fronted white, dzingangodaro dzaive nenzvimbo yepamusoro ye trophic mumamiriro ezvinhu asina kunaka. Zvatakawana zvinoratidza kuti hanzi dzinodya munguva yechando dzakaratidza mwero wepamusoro wehunhu. Zvisinei, maitiro ekutsvaga mahanzi akawanda mumamiriro ezvinhu asina kunaka enzvimbo yadzo haana kutungamira kune nzvimbo yakakura ye trophic. Kuwanikwa kwenzvimbo kunogona kuve kuri kukonzera mhinduro dzakasiyana dze HR yekutsvagira uye isotopic niche kukuchinja kwezvakatipoteredza kunokonzerwa nevanhu. Nokudaro, kuchengetedza nzira dzemvura dzechisikigo munguva yakakosha (kureva Gunyana-Mbudzi) kuona kuti zviwanikwa zvechikafu zvemhando yepamusoro zviripo zvakakosha mune ramangwana rehuwandu hwehanzi mukati meEast Asian-Australasian Flyway.
BHUKU RINOWANIKA PA:
https://doi.org/10.1111/fwb.13294
