Dab tsi yog kev faib cov pej xeem hauv ecology?
Dab tsi yog kev faib cov pej xeem hauv ecology?

Video: Dab tsi yog kev faib cov pej xeem hauv ecology?

Video: Dab tsi yog kev faib cov pej xeem hauv ecology?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Hlis ntuj nqeg
Anonim

Hauv ecology , a pej xeem muaj tag nrho cov kab mob ntawm ib hom tsiaj uas nyob hauv ib cheeb tsam. A pej xeem tuaj yeem piav qhia nyob rau hauv cov nqe lus ntawm kev faib tawm , los yog dispersion, ntawm cov neeg uas tsim nws. Cov tib neeg tuaj yeem muab faib ua ib qho sib xws, random, lossis clumped qauv.

Ib yam li ntawd, kev faib tawm hauv ecology yog dab tsi?

Kev faib tawm : Thaj chaw thaj chaw uas cov neeg ntawm ib hom tshwm sim. Kev nplua nuj: Tus naj npawb ntawm cov neeg nyob hauv ib cheeb tsam. Ecologists sim nkag siab txog yam xwm txheej twg txiav txim siab kev faib tawm thiab abundance ntawm hom. Pej xeem: Pab pawg neeg sib cuam tshuam ntawm tib hom tsiaj nyob hauv ib cheeb tsam.

Ib yam li ntawd, 3 hom kev faib pej xeem yog dab tsi? Peb yooj yim hom kev faib cov pej xeem nyob rau hauv ib cheeb tsam ntau yog (los ntawm saum toj mus rau hauv qab) uniform, random, thiab clumped.

Ua raws li qhov kev pom no, kev faib cov pej xeem yog dab tsi?

Kev faib cov pej xeem txhais tau hais tias tus qauv ntawm qhov chaw neeg nyob. Ntiaj teb kev faib cov pejxeem tsis sib npaug. Cov chaw uas muaj neeg nyob tsis tshua muaj neeg tsawg. Cov chaw uas muaj neeg coob coob muaj coob tus neeg. Cov pejxeem Qhov ceev yog feem ntau qhia raws li tus naj npawb ntawm cov neeg ib square kilometers.

Dab tsi yog pej xeem ceev hauv ecology?

Kev txhais ntawm Population Density Hauv biology, cov pejxeem yog pab pawg ntawm cov tib neeg uas muaj tib hom tsiaj uas nyob hauv tib cheeb tsam tib lub sijhawm. Cov pej xeem ceev yog ib qho kev ntsuas ntawm tus naj npawb ntawm cov kab mob uas ua rau a pej xeem nyob rau hauv ib cheeb tsam.

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