Qhov txawv ntawm Cov Hom Khaub Ncaws thiab Hom Keystone

Cov txheej txheem:

Qhov txawv ntawm Cov Hom Khaub Ncaws thiab Hom Keystone
Qhov txawv ntawm Cov Hom Khaub Ncaws thiab Hom Keystone

Video: Qhov txawv ntawm Cov Hom Khaub Ncaws thiab Hom Keystone

Video: Qhov txawv ntawm Cov Hom Khaub Ncaws thiab Hom Keystone
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Hlis ntuj nqeg
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Qhov sib txawv tseem ceeb ntawm hom kaus thiab hom keystone yog cov hom kaus yog hom uas tsis ncaj qha cuam tshuam nrog kev txuag ntau lwm hom ntawm ecosystem lossis toj roob hauv pes theem thaum hom keystone yog hom uas ua si tsis sib haum xeeb loj dua. Lub luag haujlwm hauv kev nthuav dav thiab cov pej xeem ntawm lwm hom tsiaj hauv lawv cov ecosystem lossis zej zog.

Ib qho ecosystem yog ib lub zej zog uas cov kab mob nyob thiab ib puag ncig tsis nyob ua ke. Nyob rau hauv lub ecosystem, hom sib cuam tshuam lawv tus kheej ntawm ntau hom txheej txheem xws li predation, parasitism, mutualisms, symbiosis, kev sib tw, thiab lwm yam. Kev txuag ntawm hom tuaj yeem ua tau raws li qhov xav tau, thiab kev txiav txim siab ntawm cov xwm txheej ntawm hom tsis yooj yim. Yog li ntawd, rau qhov yooj yim ntawm kev txuag, qee hom xws li hom kaus, hom keystone, hom flagship tuaj yeem txheeb xyuas thiab siv. Cov kev hloov hauv cov tsiaj no qhia txog cov xwm txheej ntawm lwm hom tsiaj hauv ecosystem. Li no, nws ua rau kev txiav txim siab txuag tau yooj yim dua.

Lub kaus yog dab tsi?

Kev txuag ntau hom tsiaj hauv ecosystem yog ib txoj haujlwm nyuaj. Txawm li cas los xij, qee hom kev txiav txim siab txuag tau yooj yim dua. Umbrella hom yog hom hom uas nws kev txuag tsis ncaj qha tiv thaiv ntau hom tsiaj hauv ecosystem. Yog li ntawd, cov kaus mom tuaj yeem siv los txiav txim siab txog kev txuag. Cov tsiaj no muaj qhov xav tau ntawm thaj chaw loj dua thiab lwm yam kev xav tau. Tsis tas li ntawd, thaum lub kaus hom tau txais kev cawmdim, nws yuav ua rau muaj kev txuag ntawm ntau lwm hom. Yog li ntawd, kev saib xyuas cov kaus mom thiab kev txuag lossis tiv thaiv lawv yuav ua rau muaj chaw nyob zoo rau lwm hom tsiaj hauv qhov ecosystem.

Qhov sib txawv ntawm Hom Khaub Ncaws thiab Keystone Hom
Qhov sib txawv ntawm Hom Khaub Ncaws thiab Keystone Hom

Daim duab 01: Lub Hom Phiaj

Txawm hais tias lub tswv yim ntawm 'umbrella hom' yog ib qho kev sib cav txog kev txuag, nws yog txoj kev txuag sai thiab tsis tshua kim vim nws txo cov nqi peev hauv kev ua piv txwv. Amur tsov yog ib hom kaus. Thiab kuj grizzly dais yog lwm hom kaus. Ntau lub kaus yog migratory vim lawv xav tau chaw nyob loj dua.

Keystone hom yog dab tsi?

Keystone hom yog hom uas ua rau muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo ntawm cov zej zog. Lawv yog cov tseem ceeb hauv kev tswj cov ecosystem hauv lawv qhov chaw nyob. Yog hais tias ib hom keystone raug tshem tawm ntawm qhov chaw nyob, qhov chaw nyob yuav hloov pauv loj heev. Qee hom yuav ploj ntawm qhov ecosystem. Tsis tas li ntawd xwb, muaj caij nyoog dhau los lawm thiab. Yog li ntawd, hom pob zeb tseem ceeb ua lub luag haujlwm tshwj xeeb thiab tseem ceeb hauv kev tswj hwm tus qauv thiab kev ncaj ncees ntawm lub zej zog.

Qhov tseem ceeb sib txawv ntawm Cov Hom Khaub Ncaws thiab Keystone Hom
Qhov tseem ceeb sib txawv ntawm Cov Hom Khaub Ncaws thiab Keystone Hom

Daim duab 02: Hummingbird

Qee yam piv txwv ntawm hom pob zeb tseem ceeb yog hma, hummingbirds, North American beaver, Saguaro cactus, xibtes thiab fig ntoo, thiab lwm yam. Lub hummingbird cuam tshuam qhov kev pheej hmoo ntawm ntau hom paj ntoo los ntawm kev cuam tshuam ntawm paj paj. American beaver txiav txim siab qhov nthuav dav thiab kev ua ub no ntawm ntau hom tsiaj los ntawm kev hloov ib puag ncig. Cov hom pob zeb tseem ceeb tuaj yeem ua rau muaj kev cuam tshuam sab saum toj ntawm cov qib trophic qis thiab tiv thaiv lawv los ntawm kev tswj hwm cov peev txheej tseem ceeb xws li chaw, cov khoom lag luam tseem ceeb thiab lwm yam.

Dab tsi yog qhov zoo sib xws ntawm Cov Hom Khaub Ncaws thiab Cov Hom Keystone?

  • hom kaus mom thiab hom pob zeb tseem ceeb piav qhia tias ib hom kab mob cuam tshuam li cas rau ntau hom kab mob persistence.
  • Lwm hom nyob ntawm ob hom no.
  • Ob hom yog qhov tseem ceeb rau kev muaj nyob ntawm lawv cov ecosystems.

Dab tsi yog qhov txawv ntawm Cov Kab Tsuag thiab Keystone Hom?

hom kaus mom thiab hom pob zeb tseem ceeb yog ob hom hom uas lwm hom nyob ntawm. Umbrella hom ua rau kev txiav txim siab txuag yooj yim dua vim tias lawv qhov kev txuag tsis ncaj qha tiv thaiv lwm hom tsiaj hauv ecosystems. Keystone hom tseem ua lub luag haujlwm tshwj xeeb thiab tseem ceeb hauv nws ib puag ncig hauv kev nthuav dav thiab tswj hwm cov pejxeem ntawm lwm hom.

Cov hauv qab no nthuav tawm qhov sib txawv ntawm hom kaus thiab hom keystone hauv daim ntawv.

Qhov sib txawv ntawm Cov Hom Khaub Ncaws thiab Keystone Hom nyob rau hauv daim ntawv Tabular
Qhov sib txawv ntawm Cov Hom Khaub Ncaws thiab Keystone Hom nyob rau hauv daim ntawv Tabular

Summary -Umbrella Species vs Keystone Species

Txoj kev poob yog kev hem thawj rau lub ntiaj teb. Yog li ntawd, kev txuag tsiaj yuav tsum maximized. Txwv tsis pub, qee hom tsiaj yuav tuag los ntawm lub ntiaj teb sai sai no. Txawm li cas los xij, nws tsis yog ib txoj haujlwm yooj yim. Qee hom tsiaj xws li kaus mom, hom pob zeb tseem ceeb ua rau txoj haujlwm no yooj yim me ntsis vim lawv qhov tseem ceeb rau kev pheej hmoo ntawm ecosystems. Tsis tas li ntawd, cov kaus mom ua rau kev txuag tau yooj yim dua vim tias lawv qhov kev txuag tsis ncaj qha khaws ntau lwm hom tsiaj hauv ecosystem. Ntawm qhov tod tes, hom pob zeb tseem ceeb tseem ceeb heev rau kev nthuav dav thiab cov pej xeem theem ntawm lwm hom tsiaj hauv ecosystem. Lawv cuam tshuam rau cov khoom noj webs zoo heev. Yog tias peb tshem tawm hom pob zeb tseem ceeb ntawm nws ib puag ncig, nws tuaj yeem hloov pauv lossis tso tseg lub ecosystem. Nov yog qhov txawv ntawm hom kaus thiab hom keystone.

Pom zoo: