Video: Dab tsi yog lo lus ecological los piav txog qhov loj ntawm cov pejxeem uas ib puag ncig tuaj yeem txhawb nqa?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov pejxeem loj ntawm qhov kev loj hlob nres feem ntau hu ua lub peev xwm nqa (K), uas yog tus naj npawb ntawm cov tib neeg ntawm ib qho tshwj xeeb pej xeem tias cov ib puag ncig tuaj yeem txhawb nqa.
Tsis tas li ntawd, dab tsi cuam tshuam rau qhov loj ntawm cov neeg nyob hauv ib qho ecosystem?
Ceev-nyob yam suav nrog kev sib tw, kev ua phem, kab mob sib kis, thiab kab mob. Qhov ceev-yooj yim yam suav nrog kev puas tsuaj ntuj, qhov kub thiab txias, kev ua haujlwm ntawm tib neeg, thiab cov yam ntxwv ntawm lub cev thiab lub cev ntawm lub cev.
Ib yam li ntawd, lub ecological txhais ntawm cov pejxeem yog dab tsi? Hauv genetics a pej xeem yog ib pawg ntawm interbreeding cov tib neeg ntawm tib hom, uas yog cais los ntawm lwm pab pawg neeg. Hauv pej xeem ecology a pej xeem yog ib pab neeg ntawm tib hom neeg nyob hauv tib cheeb tsam.
Ntawm no, lub npe rau cov pej xeem coob npaum li cas ib puag ncig tuaj yeem txhawb nqa?
Lub peev xwm nqa tau ntawm ib hom kab mob lom hauv ib qho ib puag ncig yog cov cov neeg coob coob ntawm hom uas ib puag ncig tuaj yeem txhawb nqa indefinitely, muab cov zaub mov, chaw nyob, dej, thiab lwm yam khoom muaj nyob rau hauv lub ib puag ncig.
Lub sij hawm twg yog siv los piav txog pes tsawg tus kab mob uas ib qho chaw nyob tuaj yeem txhawb nqa?
Nqa Capacity = The tus naj npawb ntawm cov kab mob ntawm ib hom uas ib puag ncig tuaj yeem txhawb nqa . Limiting yam ntawm cov pejxeem loj hlob xws li zaub mov, chaw nyob , cov phooj ywg, thiab lwm yam.
Pom zoo:
Dab tsi yog 5 txoj haujlwm loj ntawm kev kawm uas pab txhawb rau kev tshawb fawb ib puag ncig?
Tsib txoj haujlwm tseem ceeb ntawm kev kawm yog biology, kawm txog cov kab mob nyob; Lub ntiaj teb kev tshawb fawb, kev tshawb fawb ntawm lub ntiaj teb tsis muaj sia nyob thiab lub ntiaj teb; physics, kev kawm txog cov teeb meem thiab lub zog; chemistry, kev kawm txog tshuaj thiab lawv cov kev sib cuam tshuam, thiab kev tshawb fawb txog kev sib raug zoo, kev kawm txog tib neeg cov pejxeem
Dab tsi yog lub zog uas tuaj yeem tshwm sim ntawm qhov chaw ua si los ua kom cov khoom pib txav mus los?
Kev sib txhuam. Thaum lub ntiajteb txawj nqus yog ib qho tseem ceeb ntawm physics rau qhov chaw ua si swb, kev sib txhuam yog qhov tseem ceeb sib npaug. Kev sib txhuam ua haujlwm tiv thaiv lub ntiajteb txawj nqus kom qeeb tus neeg qhovntsej thiaj tsis mob ntawm tus swb. Kev sib txhuam yog ib qho quab yuam uas tshwm sim thaum twg ob yam khoom rub tawm rau ib leeg, xws li swb thiab ib tus neeg lub nraub qaum
Yuav ua li cas ib tug capita tus nqi ntawm cov pejxeem loj hlob muaj feem xyuam rau cov pejxeem?
Kev loj hlob ntawm pej xeem yog ntsuas nyob rau hauv cov tib neeg nyob rau hauv ib tug pej xeem (N) dhau sij hawm (t). Per capita txhais tau hais tias ib tus neeg, thiab qhov kev loj hlob ntawm ib tus neeg muaj feem cuam tshuam txog tus naj npawb ntawm kev yug thiab kev tuag hauv cov pejxeem. Qhov sib npaug ntawm kev loj hlob hauv logistic xav tias K thiab r tsis hloov lub sijhawm hauv cov pejxeem
Dab tsi yog qhov kev txiav txim ntawm ecological hierarchy los ntawm qhov tsawg tshaj plaws mus rau loj?
Cov ntsiab lus ntawm cov koom haum hauv ecology suav nrog cov pej xeem, zej zog, ecosystem, thiab biosphere. Ib qho ecosystem yog tag nrho cov tsiaj nyob hauv ib cheeb tsam cuam tshuam nrog tag nrho cov abiotic qhov chaw ntawm ib puag ncig
Dab tsi yog cov pejxeem loj tshaj plaws uas lub ecosystem tuaj yeem txhawb nqa lub sijhawm?
Lub peev xwm nqa tau yog cov neeg coob tshaj plaws uas ib puag ncig tuaj yeem txhawb nqa txhua lub sijhawm. Yog tias muaj peev txheej tseem ceeb tsawg, xws li zaub mov, lub peev xwm nqa tau yuav txo qis ua rau cov tib neeg hauv cov pej xeem tuag lossis tsiv teb tsaws. 32