Qhov txawv ntawm Keystone Hom thiab Foundation Hom

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Qhov txawv ntawm Keystone Hom thiab Foundation Hom
Qhov txawv ntawm Keystone Hom thiab Foundation Hom

Video: Qhov txawv ntawm Keystone Hom thiab Foundation Hom

Video: Qhov txawv ntawm Keystone Hom thiab Foundation Hom
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Qhov sib txawv tseem ceeb ntawm hom keystone thiab lub hauv paus hom yog cov hom keystone yog hom uas muaj txiaj ntsig zoo dua rau tag nrho lwm hom hauv ecosystem thaum lub hauv paus hom yog cov hom uas ua lub luag haujlwm tseem ceeb hauv kev tsim thiab tswj kev lag luam. chaw nyob rau lwm hom.

Muaj ntau pawg ntawm cov kab mob uas tseem ceeb rau kev ciaj sia lossis kev muaj nyob ntawm ecosystem. Keystone hom, lub hauv paus hom, hom kaus, hom cim yog ob peb yam piv txwv. Keystone hom tej zaum yuav tsis pom nyob rau hauv lub ecosystem, tab sis lawv lub neej yog ib qho tseem ceeb rau cov muaj pes tsawg leeg ntawm lwm cov zej zog. Cov hom tsiaj, ntawm qhov tod tes, kuj tseem ceeb heev vim lawv ua lub luag haujlwm tseem ceeb hauv kev tsim thiab tswj chaw nyob rau lwm hom. Yog li ntawd, lawv qhia lub luag haujlwm muaj zog hauv kev tsim lub zej zog.

Keystone hom yog dab tsi?

Ecologist Robert Paine tau sau lo lus "keystone hom" hauv xyoo 1960. Keystone hom yog hom tsiaj uas muaj kev cuam tshuam zoo rau kev sib xyaw ntawm cov zej zog hauv ecosystem. Qhov tseeb, cov tsiaj no ua rau muaj kev cuam tshuam ntau dua rau txhua hom tsiaj hauv ecosystem. Yog li ntawd, yog tias peb tshem tawm ib hom pob zeb tseem ceeb ntawm lub ecosystem, nws yuav muaj kev cuam tshuam loj thiab kav ntev rau lwm tus hauv zej zog. Cov hom no yuav tsis pom nyob hauv lub cev; Txawm li cas los xij, lawv qhov kev tshem tawm yuav ua rau muaj kev puas tsuaj loj rau lub ecosystem. Starfish, hummingbird, hiav txwv otter, African ntxhw, American beaver, ya hma liab thiab mangrove ntoo yog ob peb yam piv txwv rau hom keystone.

Qhov sib txawv ntawm Keystone Hom thiab Foundation Hom
Qhov sib txawv ntawm Keystone Hom thiab Foundation Hom

Daim duab 01: Keystone Species

Tsis tas li ntawd, muaj peb hom pob zeb tseem ceeb xws li cov tsiaj nyeg, ecosystem engineers lossis mutualists. Predator keystone hom tswj cov pej xeem ntawm prey hom, thaum ecosystem engineers muaj peev xwm tsim, hloov, lossis rhuav tshem qhov chaw nyob. Mutualists muab txiaj ntsig rau lwm hom tsiaj thaum nyob hauv kev sib raug zoo nrog lawv.

Dab tsi yog Foundation Hom?

Lub hom phiaj yog hom tsiaj uas ua lub luag haujlwm tseem ceeb hauv kev tsim lossis tswj chaw nyob kom txhawb nqa lwm hom tsiaj hauv ib qho chaw. Coral yog lub hauv paus hom. Coral reefs tsim chaw nyob rau lwm hom. Cov ntoo hauv hav zoov yog lwm qhov piv txwv ntawm lub hauv paus hom.

Qhov txawv tseem ceeb - Keystone Hom vs Foundation Hom
Qhov txawv tseem ceeb - Keystone Hom vs Foundation Hom

Daim duab 02: Lub Hom Phiaj

Kev sib cuam tshuam ntawm cov hom hauv paus thiab lwm hom tsiaj hauv ib qho chaw ecosystem tsis yog trophic. Vim qhov no tsis yog-trophic nyhuv, kev txheeb xyuas lossis kev tshawb pom ntawm cov hom hauv paus hauv ib qho ecosystem nyuaj dua. Txawm li cas los xij, lub hauv paus hom yog feem ntau muaj thiab ntau tshaj. Yog li ntawd, lawv ib txwm tau txais kev saib xyuas tsawg.

Dab tsi yog qhov zoo sib xws ntawm Keystone Hom thiab Foundation Hom?

  • Keystone hom thiab lub hauv paus hom yog ob hom uas tseem ceeb rau kev ciaj sia ntawm lwm hom tsiaj hauv ib qho chaw.
  • Ob hom tsiaj muaj ntau nyob hauv ib qho chaw.

Qhov txawv ntawm Keystone Hom thiab Foundation Hom yog dab tsi?

Qhov sib txawv tseem ceeb ntawm hom keystone thiab lub hauv paus hom yog cov hom keystone yog hom uas muaj txiaj ntsig zoo dua rau tag nrho lwm hom tsiaj hauv ecosystem thaum lub hauv paus hom yog hom uas ua lub luag haujlwm tseem ceeb hauv kev tsim lossis tswj kev lag luam. nyob rau hauv thiaj li yuav txhawb nqa lwm yam tsiaj nyob rau hauv ib tug ecosystem. Ntxiv mus, hom kev ua ntawm keystone hom yog trophic thaum hom kev txiav txim ntawm lub hauv paus hom yog non-trophic. Yog li, qhov no yog lwm qhov sib txawv ntawm hom keystone thiab lub hauv paus hom.

Cov hauv qab no qhia txog qhov sib txawv ntawm hom keystone thiab hom hauv paus.

Qhov sib txawv ntawm Keystone Hom thiab Foundation Hom hauv Tabular Form
Qhov sib txawv ntawm Keystone Hom thiab Foundation Hom hauv Tabular Form

Summary – Keystone Species vs Foundation Species

Keystone hom yog hom tseem ceeb hauv ecosystem. Lawv ua rau muaj txiaj ntsig zoo rau kev sib xyaw ntawm cov zej zog hauv ecosystem. Nyob rau hauv sib piv, lub hauv paus hom yog cov ntau tshaj plaws hom nyob rau hauv ib tug ecosystem. Lawv lub cev hloov kho ib puag ncig thiab tsim thiab tswj cov chaw nyob uas muaj txiaj ntsig zoo rau lwm yam kab mob hauv ecosystem. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm hom keystone thiab lub hauv paus hom.

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