Cov txheej txheem:

Dab tsi ua rau muaj kev vam meej invasive hom?
Dab tsi ua rau muaj kev vam meej invasive hom?

Video: Dab tsi ua rau muaj kev vam meej invasive hom?

Video: Dab tsi ua rau muaj kev vam meej invasive hom?
Video: dab hais hmoob - 0555 - Yawg Fav ntaus poj ntxoog tuag hauv tsev 2024, Kaum ib hlis
Anonim

Hom kab mob feem ntau ua tiav nyob rau hauv lawv cov ecosystems tshiab vim tias lawv tuaj yeem tsim thiab loj hlob sai lossis vim lawv qhov chaw tshiab tsis muaj cov tsiaj nyeg lossis kab tsuag. Vim li ntawd, invasive hom tuaj hem neeg hom thiab cuam tshuam cov txheej txheem ecosystem tseem ceeb.

Ntawm no, dab tsi ua rau ib hom invasive?

Ib invasive hom yog ib yam kab mob uas ua rau muaj kev puas tsuaj rau ecological lossis kev lag luam hauv ib puag ncig tshiab uas nws tsis yog haiv neeg. Hom kab mob muaj peev xwm ua rau kev puas tsuaj ntawm cov nroj tsuag thiab tsiaj txhu, txo biodiversity, sib tw nrog cov kab mob ib txwm muaj rau cov peev txheej tsawg, thiab hloov chaw nyob.

Tom qab ntawd, lo lus nug yog, hom kab mob tuaj yeem ua tau zoo? Invasive cog hom muaj peev xwm qee zaum ua lub zog ntawm zoo nyob rau hauv ecosystems lawv infiltrate, raws li kev tshawb fawb tshiab. Txawm li cas los xij, Carlo tau hais tias, feem ntau cov ecosystems tau hloov pauv loj heev los ntawm tib neeg kev cuam tshuam uas rov qab los rau lawv lub xeev qub yog qhov nyuaj, txij li muaj ntau yam nroj tsuag. hom tau ua tsis tshua muaj.

Tsis tas li ntawd, dab tsi zoo li invasive hom muaj?

Nws yog qhov paub zoo tias invasive hom txo biodiversity los ntawm outcompeting ib txwm nroj tsuag thiab tsiaj txhu rau kev pab. Lawv yog cov neeg sib tw zoo dua vim tias lawv tshwm sim ntxov thaum lub caij nplooj ntoo hlav, loj hlob sai, thiab raug cuam tshuam los ntawm ob peb, yog tias muaj, cov tsiaj nyeg ntuj.

Dab tsi yog qhov zoo ntawm ib hom uas ua rau nws muaj peev xwm ua tau zoo?

Common invasive species traits muaj xws li cov hauv qab no:

  • Kev loj hlob sai.
  • Kev loj hlob sai.
  • High dispersal muaj peev xwm.
  • Phenotype plasticity (lub peev xwm los hloov daim ntawv loj hlob kom haum rau cov xwm txheej tam sim no)
  • Kev kam rau ntau yam ntawm ib puag ncig (Ecological competence)

Pom zoo: