Qhov kev xav no ua rau lub tswv yim tias kev hloov pauv hauv zos qee zaum tuaj yeem ua cov cim kev lom neeg ntawm haiv neeg hauv tib neeg; uas yog, tib neeg haiv neeg yog ecotypes (Pigliucci & Kaplan, 2003). Txawm li cas los xij, tib neeg ecotypes tsis sib haum rau haiv neeg raws lisubspecies txhais.
piv txwv ntawm ecotype yog dab tsi?
Piv txwv li, cov subspecies Rangifer tarandus caribou yog qhov txawv ntxiv los ntawm ntau cov ecotypes, suav nrog boreal woodland caribou, roob woodland caribou, thiab migratory woodland caribou (xws li migratory. George River Caribou Herd hauv thaj av Ungava ntawm Quebec).
5 haiv neeg yog dab tsi?
Coon, faib tib neeg ua tsib haiv neeg:
- Negroid (Black) haiv neeg.
- Australoid (Australian Aboriginine thiab Papuan) haiv neeg.
- Capoid (Bushmen/Hottenots) haiv neeg.
- Mongoloid (Oriental/Amerindian) haiv neeg.
- Caucasoid (White) haiv neeg.
3 haiv neeg yog dab tsi?
Nyob rau hauv 5,000- 7,000 xyoo dhau los, thaj chaw teeb meem faib peb cov tsiaj ua peb haiv neeg loj (tso nyob rau hauv daim duab 9): Negroid (los yog Africans), Caucasoid (los yog Europeans) thiab Mongoloid (los yog Neeg Asians).
ecotypes txawv ntawm hom li cas?
Txawm tias qhov sib txawv ntawm ib hom tsiaj yog morphologically thiab genetic txawv, tsis tau vim lawv inter-fertility, lawv muab tso rau hauv ib hom taxonomic. Ecotypes yog morphologically, physiologically thiab kev loj hlob yoog raws nyob rau hauv ib puag ncig sib txawv.
