Maitiro ekutama uye mamiriro ekuchengetedza eAsia Great Bustard (Otis tarda dybowskii) kuchamhembe kwakadziva kumabvazuva kweAsia.

Zvisikwa(Avian):Great Bustard (Otis tarda)

JournalJ:Nhoroondo yedu yeOrnithology

Abstract:

The Great Bustard (Otis tarda) inobata mutsauko weshiri inorema kupfuura dzimwe dzose kutora kutama pamwe nehukuru hukuru hwehukuru hwepabonde dimorphism pakati peshiri mhenyu. Kunyange zvazvo kutama kwemarudzi kwave kuchikurukurwa zvakanyanya mumabhuku, vatsvakurudzi vanoziva zvishoma pamusoro pemafambiro emafambiro ezvinyorwa zveAsia (Otis tarda dybowskii), kunyanya varume. Muna 2018 na2019, takabata O. t. dybowskii (varume vashanu nehadzi imwe chete) kunzvimbo dzavanoberekera kumabvazuva kweMongolia uye vakavamaka neGPS-GSM satellite transmitters. Iyi inguva yekutanga kuti maGreat Bustards ekumabvazuva subspecies akatewerwa kumabvazuva kweMongolia. Takawana kusiyana kwepabonde mumatanho ekutama: varume vakatanga kutama gare gare asi vakasvika kare kupfuura mukadzi muchirimo; varume vaive ne 1/3 yenguva yekufamba uye vakatama inenge 1/2 chinhambwe chemukadzi. Pamusoro pezvo, Great Bustards yakaratidza kutendeka kwakanyanya kune yavo yekuberekesa, yekumashure-kubereka, uye yechando nzvimbo. Nekuchengetedza, chete 22.51% yeGPS nzvimbo inogadziriswa yemabustards yaive mukati menzvimbo dzakachengetedzwa, uye isingasviki 5.0% yenzvimbo dzechando uye panguva yekutama. Mukati memakore maviri, hafu yeGreat Bustards yatakaronda yakafira munzvimbo dzavo dzechando kana panguva yekutama. Isu tinokurudzira kumisa nzvimbo dzakadzivirirwa munzvimbo dzechando uye kudzoreredza kana kudzika tambo dzemagetsi munzvimbo idzo maGreat Bustards akaparadzirwa zvakanyanya kubvisa kudhumhana.