Otters yog cov tsiaj yug tsiaj uas nyob hauv tsev neeg mustelid thiab Lutrinae subfamily. Lawv yog cov cim los ntawm kev ua ib pawg neeg sib txawv nrog yim genera, 12 hom thiab qee yam 31 subspecies. Lawv yog cov tsiaj tshwj xeeb, nrog cov cwj pwm cuam tshuam nrog thaj chaw hauv dej thiab cov neeg yos hav zoov heev, uas qee zaum txawm cia siab rau kev siv cov cuab yeej xws li pob zeb los qhib cov tsiaj uas lawv pub rau. Lawv qhov kev sib txawv taxonomic kuj tseem cuam tshuam nrog lawv qhov kev faib tawm thoob plaws hauv ntau thaj chaw ntawm lub ntiaj teb, thiab hauv tsab xov xwm no ntawm peb lub xaib peb xav qhia koj txog cov ntaub ntawv tshwj xeeb txog
Otter Distribution
Otters muaj nyob rau hauv cov teb chaws nram qab no: Asia, Africa, America thiab Europe Qhov tseeb no qhia peb seb lawv muaj ntau yam sib txawv ntawm kev faib tawm.. Txawm li cas los xij, nws yog nyob rau hauv Tebchaws Asmeskas uas muaj kev faib tawm ntau dua thiab muaj ntau haiv neeg, txij li cov kab no muaj nyob hauv yuav luag txhua lub tebchaws, los ntawm Canada mus rau Argentina.
Cia peb kawm paub hauv qab no qhia txog kev faib tawm ntawm cov noog nyob hauv txhua lub teb chaws, qhia tias qee qhov tib hom tuaj yeem nyob hauv ntau dua ib cheeb tsam no:
Otter distribution in Asia
Nov yog qee lub tebchaws Esxias uas tuaj yeem pom cov nab npawb:
- Afghanistan
- Bhutan
- Indonesia
- Iraq
- Malaysia
Asian otter hom muaj raws li hauv qab no:
- Sea otter (Enhydra lutris)
- Eurasian Otter (Lutra lutra)
- Hairy-nosed otter (Lutra sumatrana)
- Smooth-coated Otter (Lutrogale perspicillata)
- Oriental me-clawed otter (Amblonyx cinereus)
Kev faib tawm ntawm otters hauv Africa
PHEEJ HMOO HAIV NEEG AFE, cov no yog qee lub tebchaws uas peb tuaj yeem nrhiav cov otters:
- Angola
- Ivory Coast
- Zimbabwe
Cov hom kab ntsig uas tuaj yeem pom hauv Africa yog:
- African clawless otter (Aonyx capensis)
- Spotted-necked Otter (Hydrictis maculicollis)
Otters tsis tshua muaj nyob hauv Europe, cov no yog qee lub tebchaws uas lawv tuaj yeem pom:
- Austria
- Belarus
- Belgium
- Fabkis
- Portugal
Npau suav teb nyob sab Europe yog Eurasian otter (Lutra lutra).
Nyob rau teb chaws Amelikas, raws li peb tau hais tseg lawm, cov nab no tau muab faib thoob plaws hauv lub tebchaws, kom peb thiaj li nrhiav tau lawv hauv lub tebchaws no:
- Brazil
- NOJ NOJ NOJ NOJ NOJ NIAM
- - Costa Rica
- Ecuador
- French Guiana
- Honduras
-Teb Tsis Tau
Cov hom muaj nyob rau hauv America yog:
- Sea otter (Enhydra lutris)
- Giant Otter (Pteronura brasiliensis)
- Southern River otter (Lontra provocax)
- Neotropical Otter (Lontra longicaudis)
- Sea otter or sea cat (Lontra felina)
- North American River Otter (Lontra canadensis)
Nyob rau hauv tsab xov xwm hais txog Hom otters peb tham txog cov yam ntxwv ntawm txhua hom.
Otter Habitat
Raws li peb tau pom lawm, cov txiv ntoo muaj ntau qhov kev faib tawm, muaj nyob hauv ntau lub teb chaws ntawm ntau lub teb chaws. Raws li qhov xav tau, qhov no muaj feem xyuam rau hom chaw nyob ntawm oatter, txawm hais tias muaj ib qho zoo sib xws hauv qhov chaw nyob ntawm txhua hom thiab nws yog qhov presence of the body of water, txawm qab zib los yog savory, lawv tuaj yeem nyob hauv qhov chaw uas muaj cov yam ntxwv sib txawv thiab cov xwm txheej. Yog li ntawd, cov chaw nyob tseem ceeb uas cov nab loj hlob yog cov hauv qab no:
Ib hom chaw nyob uas otters feem ntau txhim kho yog Cov dej tsis qab dej tsis tu ncua nrog qhov tob tob, qhov chaw swamps tsim. Qhov no yog cov ntaub ntawv ntawm oriental me me-clawed otter (Amblonyx cinereus), vim qhov no yog ib qho ntawm cov ecosystems uas nws tsim, ntxiv rau tam sim no nyob rau hauv cov dej ntws ceev ceev. Peb kuj tseem tuaj yeem hais txog lwm yam piv txwv ntawm cov tsiaj tshwj xeeb rau cov dej tsis qab, xws li cov pob txha caj dab (Hydrictis maculicollis) uas nyob hauv lub cev dej xws li Rivers, reservoirs thiab pas dej, tsis muaj kab mob thiab sediment.
Ntawm qhov tod tes, peb muaj African clawless otter (Aonyx capensis), uas tsis tshua muaj strays los ntawm ib puag ncig dej. Nws tuaj yeem nyob hauv cov pob zeb ntug hiav txwv dej hiav txwv, tab sis nws yog qhov tseem ceeb uas nws muaj kev nkag mus rau cov dej tshiab. Nws kuj tseem muaj kev vam meej hauv cov pas dej, mangroves thiab estuaries, txawm nyob rau hauv tej chaw uas muaj tej yam suab puam.
S altwater Ecosystems
Tseem muaj ntau cov noog uas nyob hauv cov kab ke ze dej hiav txwv. Ib qho piv txwv pom muaj nyob rau hauv hiav txwv otter (Enhydra lutris), uas pom nyob rau hauv pob zeb thiab seagrass txaj nyob ze ntawm ntug dej hiav txwvPeb kuj tuaj yeem hais txog tus miv otter (Lontra felina), uas nyob hauv ib puag ncig zoo li no, tab sis suav nrog cheeb tsam uas muaj cua daj cua dub thiab dej nyab
Lwm vaj
Tam sim no muaj ntau hom noog uas muaj peev xwm nyob tau ob leeg hauv dej tshiab thiab dej ntsev Peb muaj cov kab mob ntawm North American dej otter (Lontra canadensis) thiab neotropical otter (Lontra longicaudis). Lwm tus, ntxiv rau nyob rau hauv ib lossis lwm qhov chaw nyob hauv kev sib raug zoo rau hom tsiaj muaj tsiaj, kuj yog qhov chaw siab heev TAWM ntawm Eurasian otter (Lutra lutra), uas tuaj yeem txav mus rau 1,000 m saum hiav txwv theem hauv Alps thiab 3,360 m hauv Himalayas.
Cia li nthuav koj cov ntaub ntawv thiab tsis txhob nco lwm tsab xov xwm: "Otters noj dab tsi?".
Txoj kev txuag ntawm otters thiab chaw tiv thaiv
Otters feem ntau poob rau hauv ib pawg tsim los ntawm International Union for Conservation of Nature (IUCN). Cia peb paub cov ntaub ntawv hais txog nws:
- Oriental me-clawed otter (Amblonyx cinereus): vulnerable. Nws muaj nyob rau qee thaj chaw tiv thaiv hauv Asia.
- African Clawless Otter (Aonyx capensis): Near Threatened. Nws nyob hauv ntau qhov chaw tiv thaiv hauv Africa.
- Sea otter (Enhydra lutris): endangered.
- Spotted-necked Otter (Hydrictis maculicollis): Near Threatened. Nws nyob hauv ntau thaj chaw tiv thaiv, xws li cov chaw ua si hauv tebchaws Africa.
- North American River Otter (Lontra canadensis): .
- Sea otter (Lontra felina): endangered.
- Neotropical Otter (Lontra longicaudis): Neeg hemTxawm li cas los xij, koj pawg yuav txawv nyob ntawm lub teb chaws koj nyob, vim nws nyob ntawm cov pej xeem cov xwm txheej hauv cheeb tsam nug.
- Hairy-nosed otter (Lutra sumatrana): endangered.
- Smooth-Coated Otter (Lutrogale perspicillata): vulnerable. Nws nyob ob peb thaj chaw tiv thaiv hauv Asia.
- Giant Otter (Pteronura brasiliensis): endangered. Xyoo 2018 nws tau hais kom tsim kom muaj kev tiv thaiv thaj chaw uas cov tsiaj faib.
. Nws nyob hauv qee thaj chaw tiv thaiv ntawm Chile thiab Argentina.
. Koj categorization kuj txawv nyob ntawm lub teb chaws koj nyob.
Hmoov tsis zoo, ntau tus neeg txiav txim siab xaiv tus otter ua tus tsiaj yam tsis xav txog qhov tshwm sim uas qhov no tshwm sim. Hauv lwm tsab xov xwm no peb xav txog nws: "Puas muaj cai muaj ib tug noog ua tsiaj?".
