KumiswaIsayensi

Population - kuyinto ...

Population - bangabantu okuqondene okufanayo zinhlobo begazi, uyakwazi beyizalaniselana ngokukhululekile futhi abe ezivamile isakhi sofuzo pool. Lesitshalo buyimfanelo enamandla, ukufa, inzalo Dynamics, ukuminyana bhalobasar onek. Population isakhiwo kuhlanganisa futhi isilinganiso of DUNA females, ubudala, lubandlululo distribution system.

usayizi endaweni isethwe ngokuhambisana engaba iyunithi (ngabanye) umsebenzi futhi imele ibanga phakathi nalelo phuzu bese kube seqophelweni lokufa lokuzalwa abantu kakhulu. Ngokwesibonelo, isibankwa engaba amathathu amamitha, muskrat - cishe angamakhulu amane, unogwaja kanye undlunkulu - amakhilomitha amathathu. Ngo izitshalo, ubukhulu endaweni isethwe ngokuhambisana ibanga, okuyinto izimpukane impova. Ngokwesibonelo, uphayini engaba umsebenzi cishe sasiyikhulu namashumi amabili nommbila - mayelana nanhlanu amamitha.

Le ndawo futhi ukuma endaweni esimweni ngasinye isethwe ngokuhambisana izici izindawo landscaped. Lokunye lokubaluleke ngalokulinganako kukhona izici zayo intrapopulation, kanye lwendawo (indawo) zokuxhumana nabantu.

Ngokuvamile, lezi zinhlobo kwenani elingalodwa, njengoba womhlaba, imvelo, lendawo.

Environmental ucingo kule sethi abantu ezihlala ohlelweni olufanayo. Imingcele kuhambisane imingcele semvelo ngokwayo, kuchazwa uhlaza, umphakathi isitshalo.

Bendzawo - iqoqo imiphakathi yendawo uhlobo oluthile. Abantu abahlala simiso semvelo ezahlukene ezindaweni ezithize. Ngakho, abantu balapha yendlu undlunkulu - iqoqo labantu abantu abavela emiphakathini sise ibanga amakhilomitha engaphansi kwemithathu ngaphandle.

Geographic ngokuthi iqoqo ngabanye, bangazihluphi indawo nezimo eyohlobo ngokwendawo. Kusukela eKamchatka ukuba Brest, isibonelo, wathola amasethi amaprotheni ezivamile engamashumi amabili nesishiyagalolunye. imiphakathi Geographic - kuyinto indawo uhlanga zenyathi. ngaleyo ndlela zezinhlobo abonise ukufana phenotypic.

Population (labantu) - okungukuthi, okokuqala kunakho konke, iyunithi eyisisekelo inqubo yokuziphendukela kwemvelo. Kanye lokhu futhi isihloko esikhulu iyunithi kwezendawo uhlobo oluthile. Ngakho, inani labantu lingachazwa ngokuthi iqoqo ngabanye, hhayi kuphela nesikhundla endaweni ethile (isikhala), kodwa futhi iyakwazi ukudlala isikhathi eside. Ubuqotho labantu imigomo yokuziphendukela kwemvelo ezihlobene ngokuyinhloko panmixia (hybridization khulula), okuyinto kwezinye iziqu phakathi sebuningini izinhlobo ephakeme kunaleyo phakathi ezizweni ezingomakhelwane. Njengoba sihambisana nale, naphezu ubuqotho, a heterogeneous labantu e izici zofuzo. I izici eziyinhloko kwezinhlobo awashintsheki zofuzo.

Kukhona ngezigaba sabantu kusuke umbono wezokwelapha.

Ngokwesibonelo, iqoqo avaliwe abantu abasezindaweni ezingazodwa. Kulokhu, omunye labantu isehlane kusukela abanye ngobulili.

Kukhona futhi isethi ephelele abantu. Kulokhu, cabangela panmictic yezinto (uyakwazi beyizalaniselana) imiphakathi ukuba namandla high, isizukulwane ukuqhubeka. iqoqo okunjalo zezinto eziphilayo ayithinteki ingcindezi kuguquka, iziphi izici zangaphandle kwemvelo. Umqondo womkhosi labantu ekahle isetshenziswa sekulingisa kwemvelo.

Abantu zohlobo olulodwa kungaba zofuzo ezifanayo. Kulokhu sikhuluma sabantu isogenic.

Isiqalo nesigcino Kungavulwa. Kulokhu, izinyoni ezifudukayo imenze izakhi zofuzo yakhe entsha.

labantu Microbial iyona iqoqo uhlobo oluthile amaseli.

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