Thaum twg cov pej xeem ntsib kev loj hlob logistic?

Cov txheej txheem:

Thaum twg cov pej xeem ntsib kev loj hlob logistic?
Thaum twg cov pej xeem ntsib kev loj hlob logistic?

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Video: Thaum twg cov pej xeem ntsib kev loj hlob logistic?
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Thaum muaj peev txheej tsawg , cov pej xeem nthuav tawm kev loj hlob. Hauv kev loj hlob ntawm kev loj hlob, cov pej xeem nthuav dav cov pej xeem nthuav dav Cov kab mob tseem ceeb uas cuam tshuam rau pej xeem kev loj hlob suav nrog: Khoom noj khoom haus - ob qho tib si kom muaj nuj nqis thiab cov zaub mov zoo yog qhov tseem ceeb. Kev loj hlob ntawm cov pej xeem thiab kev poob ntawm hom nyob ntawm seb lawv muaj zaub mov npaum li cas. Cov zaub mov muaj ntau, cov pejxeem loj hlob kom tau raws li nws. https://en.wikipedia.org › wiki › Population_control

Population tswj - Wikipedia

txo qis vim muaj peev txheej tsawg. Nws theem tawm thaum lub peev xwm nqa ntawm ib puag ncig mus txog, ua rau muaj qhov nkhaus S-shaped.

Kev loj hlob logistic yog dab tsi thiab thaum twg nws tshwm sim hauv cov pej xeem?

Kev piav qhia: Cov pej xeem logistic kev loj hlob tshwm sim thaum qhov kev loj hlob ntawm kev txo qis thaum cov pej xeem nce mus txog qhov nqa tau. Lub peev xwm nqa tau yog qhov siab tshaj plaws ntawm cov tib neeg hauv cov pej xeem uas ib puag ncig tuaj yeem txhawb nqa.

Cov xwm txheej twg ua rau kev loj hlob ntawm cov pejxeem?

Raws li kev sib tw nce ntxiv thiab cov peev txheej dhau los ua qhov tsawg zuj zus, cov pej xeem ncav cuag lub peev xwm nqa tau (K) ntawm lawv ib puag ncig, ua rau lawv qhov kev loj hlob qeeb yuav luag zero. Qhov no ua rau S-shaped nkhaus ntawm cov pejxeem kev loj hlob hu ua logistic nkhaus (txoj cai).

Qhov piv txwv ntawm kev loj hlob logistic yog dab tsi?

Piv txwv ntawm Kev Loj Hlob

Yeast, cov kab mob microscopic siv los ua khob cij thiab dej cawv, nthuav tawm cov qauv S-shaped nkhaus thaum loj hlob hauv lub raj ntsuas (Daim duab 19.6 a). Nws txoj kev loj hlob theem tawm raws li cov pej xeem depletes cov as-ham uas tsim nyog rau nws txoj kev loj hlob.

Tus qauv logistic ntawm pejxeem kev loj hlob yog dab tsi?

Verhulst tau npaj ib tus qauv, hu ua tus qauv logistic, rau cov pejxeem kev loj hlob hauv 1838. yog cov pejxeem nyob ruaj khov. Yog cov pejxeem siab dua K ces cov pejxeem yuav txo, tabsis yog hauv qab no ces yuav nce ntxiv.

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