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Video: Dab tsi ua rau trophic cascade?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Trophic cascade . Trophic cascade , ib qho ecological phenomenon tshwm sim los ntawm kev sib ntxiv los yog tshem tawm cov tsiaj nyeg saum toj kawg nkaus thiab cuam tshuam cov kev hloov pauv ntawm cov txheeb ze ntawm cov tsiaj nyeg thiab cov tsiaj nyeg los ntawm cov khoom noj khoom haus, uas feem ntau ua rau muaj kev hloov pauv loj hauv ecosystem qauv thiab kev caij tsheb kauj vab.
Kuj paub yog, dab tsi yog trophic cascade yooj yim txhais?
Trophic cascades yog cov kev cuam tshuam tsis ncaj ncees uas muaj peev xwm tswj tau tag nrho cov ecosystems, tshwm sim thaum a trophic qib hauv lub vev xaib zaub mov raug txwv. Ib sab saum toj-down cascade yog a trophic cascade qhov twg cov neeg siv khoom sab saum toj / tus neeg tua tsiaj tswj hwm cov neeg siv khoom tseem ceeb.
Ib sab saum toj no, cascade trophic txawv ntawm cov tsoos trophic pyramid li cas? Dhau li ntawm lub zog pyramid , lwm txoj kev nkag siab txog ecosystem yog los ntawm kev nkag siab lub ntsiab lus ntawm trophic cascades . Trophic cascades tshwm sim thaum lub abundance ntawm tej yam kab mob yog heev cuam tshuam. Ib sab saum toj-down trophic cascade tshwm sim thaum muaj kev tshem tawm ntawm cov tsiaj txhu saum toj kawg nkaus.
Tsis tas li ntawd, kev coj cwj pwm cascade yog trophic cascade?
Txawm li cas los, nyob rau hauv tam sim no txoj kev tshawb no peb qhia thawj zaug uas, parallel mus rau trophic cascade , muaj ib tug " kev coj cwj pwm cascade " nyob rau hauv qhov kev xav ntawd tus cwj pwm cov lus teb, induced los ntawm nonlethal muaj nyob rau saum toj kawg nkaus predator, yog kis mus rau hauv cov zaub mov saw ntau tshaj ib trophic txuas.
Yuav siv lo lus trophic cascade hauv kab lus li cas?
trophic cascade hauv kab lus
- Cov txiaj ntsig ntawm kev sib raug zoo ncaj qha thiab tsis ncaj yog hu ua trophic cascades.
- Lub trophic cascade hauv pas dej tau tshawb fawb los ntawm Carpenter thiab Hall.
- Ntau qhov kev txwv rau saum toj-down trophic cascades kuj txhawb kev ruaj ntseg.
- Xws li kev cuam tshuam thoob plaws rau qib qis ntawm ib qho ecosystem yog hu ua trophic cascades.
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