Video: Dab tsi yog pej xeem ecology hauv kev lag luam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pej xeem ecology yog kev kawm txog kev hloov pauv hloov hauv ib pawg ntawm cov koom haum. Siv cov pej xeem raws li lawv theem ntawm kev txheeb xyuas, pej xeem ecologists txheeb xyuas qhov kev yug thiab kev tuag ntawm cov koom haum thiab cov ntaub ntawv hauv lub koom haum pej xeem dhau lub sij hawm ntev.
Tom qab ntawd, txoj kev xav ntawm pej xeem ecology yog dab tsi?
Population ecology txoj kev xav qhia tias kev hloov pauv tshwm sim ntawm qhov pej xeem qib. thiab yog qhov tshwm sim ntawm cov txheej txheem ntawm kev xaiv thiab hloov pauv (Carroll, 1988). Ib lub koom haum ib leeg txoj sia nyob yog nyob ntawm kev xaiv ib puag ncig ntawm cov ntawd.
Tsis tas li ntawd, vim li cas thiaj tseem ceeb rau kev kawm txog pej xeem ecology? Pej xeem ecology yog tseem ceeb nyob rau hauv kev txuag biology, tshwj xeeb tshaj yog nyob rau hauv txoj kev loj hlob ntawm pej xeem Kev soj ntsuam kev muaj sia nyob (PVA) uas ua rau nws muaj peev xwm kwv yees qhov tshwm sim ntev ntawm ib hom kab mob nyob rau hauv ib qho chaw nyob.
Kuj nug, leej twg tsim cov pej xeem ecology txoj kev xav?
Hauv kev tshuaj xyuas cov pej xeem ntawm cov koom haum qhov teeb meem ntawm kev teeb tsa pej xeem ciam teb yuav tsum tau xav txog. Ib qho ntawm cov kev siv dav tshaj plaws ua raws li los ntawm kev ua haujlwm pioneering ntawm Hannan thiab Freeman (1977).
Dab tsi yog theem ntawm lub koom haum hauv ecology?
Qib ntawm lub koom haum hauv ecology suav nrog pej xeem , zej zog, ecosystem, thiab biosphere.
Pom zoo:
Dab tsi yog thaj chaw ntawm pej xeem kev hloov pauv thiab vim li cas nws thiaj li muaj txiaj ntsig thaum kawm txog pej xeem?
Population dynamics yog ceg ntawm lub neej sciences uas kawm txog qhov loj thiab hnub nyoog muaj pes tsawg leeg ntawm cov pejxeem raws li dynamical systems, thiab cov txheej txheem lom thiab ib puag ncig tsav lawv (xws li yug thiab tuag tus nqi, thiab los ntawm kev nkag teb chaws thiab emigration)
Vim li cas kev lag luam tshuaj suav hais tias yog kev lag luam yooj yim?
Kev lag luam tshuaj siv cov khoom siv raw los tsim cov khoom lag luam qhia cov kua qaub, hauv paus, alkali thiab ntsev. Cov khoom siv feem ntau yog siv rau hauv kev tsim khoom ntawm lwm cov khoom lag luam xws li iav, chiv, roj hmab, tawv, ntawv thiab textiles. Yog li, peb tuaj yeem hais tias kev lag luam tshuaj lom neeg yog kev lag luam yooj yim
Leej twg tsim cov pej xeem ecology txoj kev xav?
Hauv kev tshuaj xyuas cov pej xeem ntawm cov koom haum qhov teeb meem ntawm kev teeb tsa pej xeem ciam teb yuav tsum tau xav txog. Ib txoj hauv kev siv dav tshaj plaws raws li kev ua haujlwm ntawm Hannan thiab Freeman (1977)
Vim li cas thiaj muaj kev lag luam thiab kev ua lag luam?
Ua thiab lagging strands coli, DNA polymerase uas tswj feem ntau ntawm cov synthesis yog DNA polymerase III. Cov strand no yog ua tsis tu ncua, vim hais tias DNA polymerase yog txav mus rau tib qho kev taw qhia raws li cov diav rawg replication. Qhov no tsis tu ncua synthesized strand yog hu ua tus thawj strand
Dab tsi yog kev faib cov pej xeem hauv ecology?
Hauv ecology, cov pejxeem muaj tag nrho cov kab mob ntawm ib hom tsiaj uas nyob hauv ib cheeb tsam. Cov pej xeem kuj tuaj yeem piav qhia txog kev faib tawm, lossis kev faib tawm, ntawm cov tib neeg uas tsim nws. Cov tib neeg tuaj yeem muab faib ua ib qho sib xws, random, lossis clumped qauv