Qhov sib txawv tseem ceeb ntawm detritivores thiab saprotrophs yog tias detritivores yog ib hom decomposers uas pub rau cov nroj tsuag tuag thiab tsiaj txhu thiab tom qab ntawd zom lawv hauv lawv lub cev kom tau txais cov as-ham thiab lub zog thaum saprotrophs yog hom decomposers uas secrete extracellular enzymes rau hauv cov organic teeb meem tuag, decompose lawv thiab nqus cov as-ham.
Txoj cai lij choj nto moo ntawm physics uas hais tias 'lub zog tsis tuaj yeem tsim lossis rhuav tshem' tuaj yeem siv tau zoo rau lub ntiaj teb lom neeg uas lub zog ntws los ntawm ecosystems tsis tu ncua. Detritivores thiab saprotrophs yog qhov tseem ceeb ntawm cov khoom noj khoom haus uas ua kom lub zog ntws los ntawm ecosystems thiab pab txhawb lub neej txuas ntxiv. Detritivores thiab saprotrophs yog ob pawg ntawm cov kab mob uas muaj feem cuam tshuam rau kev zom cov kab mob lom neeg tuag. Txawm hais tias lawv ua haujlwm tib yam, muaj qee qhov sib txawv ntawm lawv. Li no, kab lus no feem ntau tsom rau qhov tseeb uas qhia txog qhov sib txawv ntawm detritivores thiab saprotrophs.
Dab tsi yog Detritivores?
Detritivores yog hom heterotrophs uas pub rau cov neeg tuag lossis cov organic biomass, suav nrog tsiaj, nroj tsuag, thiab quav. Detritivores yog qhov tseem ceeb tuaj yeem zom cov pob ntawm biomass cais. Yog li, feem ntau cov kab mob unicellular (cov kab mob thiab protozoa) thiab cov fungi yuav tsis poob rau hauv qeb ntawm detritivores. Txawm li cas los xij, detritivores yuav tsum tsis txhob tsis meej pem nrog decomposers thiab scavengers.
Detritivores nyob rau hauv dej ib puag ncig yog cov hauv qab feeders xws li polychaetes, fiddler crabs, hiav txwv hnub qub, hiav txwv dib, thiab tej Terebellids, thiab lwm yam. Earthworm yog ib tug classic piv txwv ntawm terrestrial detritivores. Nyob rau tib lub sijhawm, slugs, woodlice, dung yoov, millipedes, thiab feem ntau worms yog ib co piv txwv rau detritivores.
Daim duab 01: Detritivore – Earthworm
Detritivores yog cov khoom siv hluav taws xob rov ua dua tshiab raws li lawv ua raws li cov khoom noj rau cov neeg siv khoom xws li carnivores. Lawv rov ua dua lub zog, feem ntau hauv cov ntawv carbon, nitrogen, thiab oxygen. Detritivores ingest decomposing biological teeb meem, zom nyob rau hauv lawv digestive system, thiab los nyob rau hauv cov ntaub ntawv yooj yim. Yog li ntawd, cov nroj tsuag tau yooj yim nqus cov as-ham los ntawm cov av. Yog li ntawd, nws yog qhov tseeb tias detritivores ob qho tib si haus thiab pab txhawb cov as-ham rau tsiaj thiab nroj tsuag.
Saprotrophs yog dab tsi?
Saprotrophs yog cov kab mob heterotrophic uas pub rau cov nroj tsuag uas lwj los yog tuag vim muaj cov dej txaus, oxygen, pH, thiab kub. Cov hom fungi predominate ntawm saprotrophs vim lawv muaj peev xwm zom lignin nyob rau hauv cov ntaub so ntswg xylem ntawm cov nroj tsuag. Nws tseem yog qhov nthuav kom nco ntsoov tias thaum lub sij hawm Carboniferous, feem ntau cov nroj tsuag tuag tsis tau decomposition vim saprotrophs tsis tau tsim cov lignin digesting enzymes los ntawm thaum ntawd. Yog li ntawd, cov nroj tsuag loj no tau los ua cov khoom siv niaj hnub no xws li fossil fuels.
Daim duab 02: Saprotroph – Fungus
Cov kab mob Saprotrophic secrete digesting enzymes xws li proteases, lipases, los yog amylase rau substrates. Extracellular digestion hloov lipids mus rau hauv fatty acids thiab glycerol; proteins rau hauv cov amino acids, thiab polysaccharides (xws li lignin, starch) rau hauv qabzib thiab fructose. Fungi nqus cov ntaub ntawv yooj yim no rau hauv lawv cov ntaub so ntswg los ntawm endocytosis. Saprotrophs tau txais kev noj haus los ntawm txoj kev no, thiab nws yog ib qho tseem ceeb rau lawv txoj kev loj hlob, kho, thiab kev loj hlob. Saprotrophs feem ntau pub rau ntoo, nplooj tuag, dung, thiab marine wrack. Lub luag haujlwm ecological ntawm saprotrophs yog qhov tseem ceeb rau lub voj voog khoom noj lossis lub zog ntws ntawm cov ecosystems vim lawv haus cov teeb meem uas nyuaj rau lwm tus noj.
Dab tsi yog qhov zoo sib xws ntawm Detritivores thiab Saprotrophs?
- Detritivores thiab saprotrophs yog ob pawg ntawm cov kab mob uas cuam tshuam rau decomposing organic teeb meem hauv av.
- Ob pawg ua ke ntawm heterotrophs.
- Lawv pab txhawb cov khoom noj khoom haus rov ua dua tshiab hauv ecosystems.
- Lawv ua kom cov zaub mov muaj nyob hauv av.
- Ntxiv mus, lawv nyob qis dua hauv cov khoom noj khoom haus.
- Vim lawv, cov nroj tsuag tuag thiab tsiaj cov organic teeb meem yuav tsis nyob hauv ib puag ncig.
Qhov txawv ntawm Detritivores thiab Saprotrophs yog dab tsi?
Detritivores thiab saprotrophs yog ob pawg ntawm decomposers. Detritivores yog decomposers uas noj cov organic teeb meem tuag thiab zom lawv sab hauv hauv lawv lub plab zom mov kom nqus tau cov as-ham. Ntawm qhov tod tes, saprotrophs yog ib pawg decomposers uas zais cov enzymes extracellular ntawm cov organic teeb meem, decompose lawv thiab ces nqus cov as-ham hauv daim ntawv yooj yim. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm detritivores thiab saprotrophs. Feem ntau, detritivores feem ntau yog tsiaj, thaum saprotrophs feem ntau yog cov fungi. Tsis tas li ntawd, detritivores noj lumps ntawm cov organic teeb meem sib cais, thaum saprotrophs nqus tshuaj zom zaub mov. Saprotrophs zom lawv cov zaub mov sab nraud, thaum detritivores ua nws sab hauv hauv lub plab zom mov. Yog li, qhov no yog lwm qhov sib txawv ntawm detritivores thiab saprotrophs. Detritivores tso tawm feem ntau ntawm cov digested teeb meem unabsorbed, whereas saprotrophs nqus tag nrho digested teeb meem rau hauv lawv rau lawv loj hlob, kho, thiab yug me nyuam.
Summary – Detritivores vs Saprotrophs
Detritivore yog ib yam kab mob uas ua rau decomposer ntawm cov organic teeb meem tuag. Lawv pub rau cov nroj tsuag tuag thiab tsiaj txhu thiab tom qab ntawd zom lawv hauv lawv lub cev kom tau txais cov as-ham thiab lub zog. Hauv cov lus yooj yooj yim, tsis zoo li cov decomposers, lawv haus cov organic teeb meem decomposing, nrog rau cov teeb meem faecal kom tau txais cov as-ham. Zoo ib yam li detritivores, saprotrophs kuj yog decomposers nyob rau hauv ib puag ncig. Tab sis lawv secrete extracellular enzymes mus rau cov organic teeb meem tuag thiab decompose lawv externally. Tom qab ntawd lawv nqus cov as-ham rau hauv lawv lub cev. Yog li, qhov no yog qhov txawv ntawm detritivores thiab saprotrophs.
