Ntawm peb lub xaib peb xav qhia koj lub sijhawm no ib tsab xov xwm hais txog tus tsiaj ntxim nyiam, cov shrews, cov tsiaj txhu uas yog cov tsawg tshaj plaws ntawm lawv pawg. Cov tsiaj loj tshaj plaws nce mus txog 15 cm, hos qhov tsawg tshaj plaws ntawm 3 thiab 5 cm ntevTxawm li cas los, tsis txhob raug dag los ntawm lawv qhov loj me, vim tias cov tsiaj me no yog cov tsiaj txhu tseem ceeb hauv cov ecosystems uas lawv nyob.
Vim lawv qhov zoo sib xws, cov shrews feem ntau cuam tshuam nrog nas, xws li nas, txawm li cas los xij, lawv koom nrog qhov kev txiav txim Eulipotyphla, uas lawv koom nrog ntau tshaj, moles, gymnudes, solenodons thiab hedgehogs, nrog rau leej twg. lawv sib raug zoo dua. Yog tias koj txaus siab xav paub tshwj xeeb txog sshrews noj dab tsi, nco ntsoov nyeem cov kab hauv qab no, qhov twg koj yuav pom cov ntaub ntawv tseem ceeb txog nws.
shmoob nyob qhov twg?
1. LUBLUB CAIJ NO YUAV UA LI CAS RAU places without without without without without without withoutmore options options options options options many options options many more more more more more more pr pr pr options more more options more pr options more pr options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options more more options moreក more sib txawv noj. Txawm li cas los xij, qee hom tuaj yeem nyob hauv thaj chaw suab puam thiab pob zeb. Hauv qhov kev nkag siab no, cov ecosystems uas peb tuaj yeem pom cov shrews yog:
- Dunes.
- Tub toj siab.
Tshwj xeeb tshaj yog, lawv tuaj yeem nyob ntawm sib txawv qhov siab, xws li dej hiav txwv mus txog 2,000 meters. Lawv nyob hauv ntau lub tebchaws thoob ntiaj teb, tshwj tsis yog Australia, New Zealand, New Guinea thiab Antarctica. Hauv tebchaws Amelikas lawv muaj nyob rau qee thaj chaw.
Chaw Ntxawg Vaj
Shrews yog heev cov tsiaj nyob ib leeg thiab muaj chaw nyob heev Txawm li cas los xij, thaum lub caij ntuj no thiab thaum yug me nyuam, lawv tuaj yeem faib lawv cov zes, uas khawb hauv av., txawm hais tias lawv kuj nyob hauv qhov tsua uas tau tso tseg los ntawm lwm cov tsiaj. Cov poj niam tsuas yog lees txais ib tug txiv neej rau kev yug me nyuam, tab sis lawv tuaj yeem nrog ntau dua ib tus poj niam ib zaug.
Ntawm qhov tod tes, shrews muaj xws li cov metabolic siab uas lawv siv feem ntau ntawm cov hnub ua haujlwm, muaj lub sijhawm luv. pw tsaug zog. Thaum lub caij ntuj no lawv tsis hibernate, txawm li cas los xij, qee hom yuav muaj qee lub sijhawm ntawm torpor.
Yuav kom nrhiav tau lawv txoj hauv kev ib hnub, qee hom shrews muaj qhov muaj peev xwm siv echolocation (ib txoj kev zoo li ib siv los ntawm puav), uas muaj emitting ultrasounds, thiaj li yuav paub qhov chaw uas lawv pom.
Ntawm qhov tod tes, cov pab pawg no muaj lub tswv yim zoo kom tsis txhob muaj cov tsiaj nyeg, thiab qhov ntawd yog qhov muaj cov qog ua kua qaub uas ua rau lawv tsim cov ntxhiab tsw tsw ntxhiab , yog li lawv tsis palatable rau carnivores nrog hnov tsw zoo. Txawm li cas los xij, lawv tuaj yeem raug ntaus los ntawm cov tsiaj uas tsis hnov tsw tsw, ib yam li cov noog.
Shrews muaj voracious appetite Yog li ntawd, tshwj xeeb tshaj yog nyob rau lub caij ntuj no, shrews yuav tsum muaj zaub mov tas li , vim nws tsis txaus rau cov tsiaj uas lawv noj thaum lawv mus yos hav zoov. Yog vim li ntawd cov shrews khoom noj nyob rau hauv lawv burrows, uas lawv nkaum zoo heev los ntawm lwm yam tsiaj nyeg, thiab noj txhua txhua 2 teev nyob rau ib hnub.
Ntawm no yog ib daim ntawv teev npe hom zaub mov uas ntau hom shrews tuaj yeem noj, uas, txawm tias lawv nyiam noj tsiaj, lawv kuj pub rau cov khoom cog, yog li ntawd, lawv suav hais tias yog omnivorous tsiaj:
- Tab laug.
- Nkauj hmoob.
- Vim.
- Larvae.
- Spiders.
- Lizards.
- Snakes.
- Annelids.
- Qab.
- Oligochaetes.
- Chilopods.
- Snails.
- Nqaij ntses.
- Birds.
- Amphipods.
- Ntsuag.
Nyob hauv kev poob cev qhev, tau pom tias cov tsiaj no nyuaj rau noj cov zaub mov uas muaj tej daim loj, yog li lawv yuav tsum tau pub rau hauv me me.
Tseem muaj ntau hom shrews muaj peev xwm tsim tshuaj lom uas tov nrog lawv cov qaub ncaug. Xws li yog cov ntaub ntawv ntawm American short-tailed shrew (Blarina brevicaud), uas muaj cov qog submandibular uas qaub ncaug tsim nrog rau cov tshuaj lom neeg. Cov ntaub ntawv fossil kuj qhia lwm hom kab mob lom uas tau ploj mus, xws li hom Beremendia fissidens.
Tam sim no, hais txog qhov peculiarity ntawm tsim tshuaj lom (ib yam tsawg heev feature nyob rau hauv no vertebrates), cov kws tshawb fawb muaj ob txoj hauj lwm ntawm qhov teeb meemuas txuas mus rau lub ntsiab lus ntawm kev pub mis nyuj:
- : 1-1-2-2018, 2019-2019 || cov tshuaj lom (cov tshuaj neurotoxic) tsis tua cov tsiaj txhu tab sis ua rau tuag tes tuag taw, yog li nws yog siv los khaws cov tsiaj txhu hauv lawv qhov quav.
- : lwm txoj hauv kev yog txuas mus rau lub tswv yim evolutionary ntawm pab pawg, uas nws siv los fim ntau yam tsiaj loj, uas yuav tsum tau siv zog ntau dua thiab siv zog. Yog li, los ntawm kev tom thiab txhaj tshuaj neurotoxic venom, nws cov tsiaj nyeg yuav tsis muaj kev tiv thaiv txawm tias nws loj dua tus shrew.
Ib yam uas qhia meej yog kev aggressiveness uas cov tsiaj no tuaj yeem tua thaum tua. Qhov tseeb, koj cov hniav yog riam phom tseem ceeb rau lub sijhawm no. Shrews tuaj yeem poob qee yam ntawm lawv cov hniav. Thaum zoo li no, lawv tuag nyob rau lub sij hawm luv luv vim tsis muaj peev xwm noj tau raws li lawv txoj cai.
Tsiaj ntiaj teb yeej tsis xav tsis thoob li, qhov loj thiab qhov zoo li ntawm ib hom tsis yog ib txwm qhia tias lawv muaj peev xwm ua tau li cas, raws li qhov piv txwv ntawm cov shrew, uas txawm tias me thiab tsis yooj yim. thiab tsis muaj mob nyob rau hauv tsos, nws tawm tsam nws cov tsiaj nyeg nyob rau hauv ib tug ferocious yam, yog ib tug ntawm cov active tsiaj nyob rau hauv lub ntiaj teb no.
