Punctuated equilibrium Punctuated equilibrium Nyob rau hauv evolutionary biology, punctuated equilibrium (tseem hu ua punctuated equilibria) yog ib txoj kev xav uas hais tias ib zaug ib hom tshwm sim hauv cov ntaub ntawv fossil, cov pejxeem yuav ruaj khov, qhia me ntsis evolutionary hloov rau feem ntau ntawm nws cov keeb kwm geological. https://en.wikipedia.org › wiki › Punctuated_equilibrium
Punctuated equilibrium - Wikipedia
feem ntau yuav tshwm sim hauv cov pej xeem me uas muaj kev hloov pauv sai hauv nws ib puag ncig. Punctuated equilibrium feem ntau yuav tshwm sim nyob rau hauv cov pej xeem coob uas nyob hauv thaj chaw ruaj khov maj mam speciation feem ntau yuav tshwm sim hauv cov tsiaj uas nyob hauv huab cua ruaj khov.
Thaum twg speciation yuav tshwm sim?
Ernst Mayr tau hais tawm tsam nws qhov kev xav tias qhov tshwj xeeb tshaj plaws yog thaum cov pej xeem tau los ua thaj chaw sib cais los ntawm ib leeg, xws li kev hloov pauv hauv cov neeg nyob ib leeg yuav ua rau muaj qhov sib txawv txaus ntawm lawv qhov kev tshwj xeeb. yuav yog qhov tshwm sim tshwm sim.
Dab tsi tuaj yeem ua rau qhov tshwj xeeb tshwm sim?
Cov kws tshawb fawb xav tias thaj chaw nyob ib leeg yog ib txoj hauv kev rau cov txheej txheem ntawm speciation pib: dej hloov cov chav kawm, roob nce siab, cov teb chaws drift, kab mob tsiv teb tsaws, thiab dab tsi yog ib zaug. Cov pejxeem tsis tu ncua muab faib ua ob lossis ntau dua cov neeg tsawg.
Puas speciation yuav tshwm sim?
Rau tus nqi siab ntawm kev kawm, speciation yog feem ntau yuav tshwm sim los ntawm kev hloov pauv ntawm qhov kev nyiam nyob hauv caj ces. Txawm li cas los xij, qhov kawg tsuas yog tshwm sim thaum cov txiaj ntsig ntawm kev hloov pauv loj, lossis thaum muaj kev sib txuas ntawm cov noob coding rau qhov sib txawv.
Qhov twg ntawm cov xwm txheej hauv qab no feem ntau yuav ua rau muaj qhov tshwj xeeb?
Speciation yog txheej txheem los ntawm cov hom tshiab tsim. Dab tsi ntawm cov xwm txheej hauv qab no feem ntau yuav ua rau muaj kev tshwj xeeb? Ib tug pej xeem sib cais los ntawm ib puag ncig los ua ob pawg uas tsis sib txuas nrog ib leeg Av qeeg tsim lub chasm uas cais cov pej xeem ntawm squirrels.