Dolphins in Danger of Extinction +6 hom, ua rau thiab cov ntaub ntawv

Cov txheej txheem:

Dolphins in Danger of Extinction +6 hom, ua rau thiab cov ntaub ntawv
Dolphins in Danger of Extinction +6 hom, ua rau thiab cov ntaub ntawv
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Endangered Dolphins fetchpriority=siab
Endangered Dolphins fetchpriority=siab

Zoo ib yam li lwm pab pawg tsiaj, ntau tus ntses taub ntswg ntev yuav raug kev puas tsuaj. Feem ntau, qhov ua rau cov ntses dolphin poob los tib neegUa qias neeg, kev puas tsuaj hauv vaj tse, raug ntes los yog tsis nco qab Cov no yog qee qhov laj thawj vim li cas cov tsiaj no tau raug ploj mus ntev.

Nyob rau hauv tsab xov xwm no peb yuav tham txog dolphins in txaus ntshai tuag, peb yuav kawm txog hom ntses ntses uas muaj nyob rau hauv lub ntiaj teb no thiab peb yuav delve rau hauv qhov ua rau nws extinction los yog pejxeem deterioration.

Tam sim no, muaj 41 paub muaj sia nyob ntawm cov ntses taub ntswg ntev, ntawm dej hiav txwv dej hiav txwv thiab dej hiav txwv lossis dej ntses ntses. Dolphins yog cov tsiaj hauv dej, yog li ntawd, lawv muaj cov yam ntxwv nrog cov tsiaj hauv av, xws li:

  • Lawv muaj lub hlwb tsim kho heev: Zoo li lwm yam tsiaj, ntses taub ntswg ntev muaj lub paj hlwb nyuaj. Lawv muaj peev xwm loj rau kev kawm thiab kev nco. Dab tsi ua rau lawv sib nrug ntawm lwm cov tsiaj yog li cas ntses taub ntswg ntev pw. Cov no muaj unihemispheric pw tsaug zog, uas nyob rau hauv ib tug nutshell txhais tau hais tias lawv tua ib tug cerebral hemisphere thiaj li hais tias nws so thaum lwm tus tseem active. Ua tsaug rau qhov no, cov ntses taub ntswg ntev tuaj yeem ceeb toom rau ib puag ncig uas nyob ib puag ncig lawv, lawv tuaj yeem ua pa thiab ua luam dej ntxiv.
  • Lung Breathing: Dolphins ua pa hauv ntsws. Los ntawm ib lub qhov, hu ua blowhole, nyob rau sab saum toj ntawm lawv lub taub hau, dolphins coj nyob rau hauv cov huab cua thaum lawv nyob rau saum npoo. Lub spiracle txuas ncaj qha nrog lub trachea, uas yog luv dua nyob rau hauv cov tsiaj no tshaj nyob rau hauv lawv cov txheeb ze av. Lub trachea nqa huab cua los ntawm bronchi mus rau lub ntsws, uas, tsis zoo li cov tsiaj txhu hauv av, tsis lobed. Tsis tas li ntawd, kev ua pa yog kev yeem, nws tsis cuam tshuam, yog li koj yuav tsum tau mus ua pa ua pa.
  • Thaum lawv yug los lawv muaj plaub hau: ib qho ntawm cov yam ntxwv tseem ceeb ntawm cov tsiaj nyeg yog muaj thoob plaws hauv lub cev lossis hauv qee thaj tsam ntawm cov plaub hau.. Cov neeg laus dolphins tsis muaj plaub hau, qhov no yuav tsis yooj yim rau lub neej hauv dej. Txawm li cas los xij, dolphin yug los nrog ib txheej nyias ntawm cov plaub hau uas tawm thaum tsiaj loj hlob.
  • Lawv yog cov tsiaj viviparous: Dolphins loj hlob nyob rau hauv lub tsev menyuam uas muaj placental kev twb kev txuas ntawm tus me nyuam thiab leej niam. Tom qab yug me nyuam, tus ntses taub ntswg ntev yuav tsum nyob ntawm nws niam, leej twg yuav tsum tau pab nws ua pa ntawm qhov chaw. Tsis tas li ntawd, nws yuav pub niam mis rau thawj ob peb lub hlis ntawm lub neej.
Endangered Dolphins - Muaj pes tsawg tus ntses taub ntswg ntev nyob hauv ntiaj teb?
Endangered Dolphins - Muaj pes tsawg tus ntses taub ntswg ntev nyob hauv ntiaj teb?

Type of dolphins

Dolphins yog ib pawg tsiaj sib txawv. Lawv muaj cov yam ntxwv zoo uas tso cai rau lawv nyob hauv dej tab sis, morphologically, peb tuaj yeem pom sib txawv ntawm ntau hom, tshwj xeeb tshaj yog qhov muag liab qab.

Tseem muaj ob hom ntses taub ntswg ntev, txawm hais tias lawv txhua tus muaj nyob hauv tib lub parvorder (kev faib cais ntawm kev txiav txim thiab tsev neeg), odontocetesCov tsiaj no yog tus yam ntxwv uas muaj cov hniav ntau ua ke, txhua tus sib npaug. Lub xub ntiag ntawm cov hniav no qhia txog kev noj zaub mov carnivorous.

Pab pawg Ocean dolphins yog tsim los ntawm 34 hom:

  • Tonina overa (Cephalorhynchus commersonii)
  • Chilean Tonina (Cephalorhynchus eutropia)
  • Heaviside's dolphin (Cephalorhynchus heavisidii)
  • Hector's dolphin (Cephalorhynchus hectori)
  • Coastal Common Dolphin (Delphinus capensis)
  • Dej hiav txwv dej hiav txwv (Delphinus delphis)
  • Pygmy killer whale (Feresa attenuata)
  • Short-finned pilot whale (Globicephala macrorhynchus)
  • Pilot pilot whale (Globicephala melas)
  • Risso's dolphin (Gramus griseus)
  • Fraser's dolphin (Lagenodelphis hosei)
  • Atlantic dolphin (Lagenorhynchus acutus)
  • Ntsuab-beaked dolphin (Lagenorhynchus albirostris)
  • Southern or Antarctic dolphin (Lagenorhynchus australis)
  • Crossed dolphin (Lagenorhynchus cruciger)
  • Pacific white-sided dolphin (Lagenorhynchus obliquidens)
  • Fitzroy's dolphin (Lagenorhynchus obscurus)
  • Northern Finless Dolphin (Lissodelphis borealis)
  • Southern Finless Dolphin (Lissodelphis peronii)
  • Irrawaddy River beluga dolphin (Orcaella brevirostris)
  • Heinsohn's beluga dolphin (Orcaella heinsohni)
  • Orca (Orcinus orca)
  • Melon-headed dolphin (Peponocephala electra)
  • False killer whale (Pseudorca crassidens)
  • Tucuxi (Sotalia fluviatilis)
  • Coastal (Sotalia guianensis)
  • Hong Kong Pink Dolphin (Sousa chinensis)
  • Atlantic humpback dolphin (Sousa teuszii)
  • Topical saddled or spotted dolphin (Stenella attenuata)
  • Short-beaked spinner dolphin (Stenella clymene)
  • Striped dolphin (Stenella coeruleoalba)
  • Atlantic spotted dolphin (Stenella frontalis)
  • Long-beaked spinner dolphin (Stenella longirostris)
  • Nqaim-beaked dolphin (Steno bredanensis)
  • Indo-Pacific Dolphin (Tursiops aduncus)
  • Burrunan dolphin (Tursiops australis)
  • Bottlenose dolphin (Tursiops truncatus)

Ntawm qhov tod tes, dej los yog dej dolphins muab faib ua xya hom thiab cais nyob rau hauv lub superfamily Platanistoidea:

  • Amazon liab dolphin (Inia geoffrensis)
  • Bolivian dolphin (Inia boliviensis)
  • River dolphin (Araguaia Inia araguaiaensis)
  • Baiji (Lipotes vexillifer)
  • Silver Dolphin (Pontoporia blainvillei)
  • Ganges Dolphin (Platanista gangetica)
  • Indus Dolphin (Platanista minor)

Cov tsiaj no yog tus yam ntxwv qhia qhov muag tsis pom thiab muaj ntev thiab nyias snout. Lawv lub zeem muag tsis tshua muaj qhov cuam tshuam los ntawm lub peev xwm loj rau echolocation uas cov tsiaj no muaj.

Ntsuag ntses taub ntswg ntev

Tej zaum, daim ntawv teev cov ntses taub ntswg ntev ntev ntev npaum li qhov pom. Qhov teeb meem yog tsis tshua muaj ntaub ntawv hais txog cov tsiaj no, lawv yog nyuaj saib thiab kawm.

1. Hector's Dolphin

The Hector's dolphin (Cephalorhynchus hectori) raug suav hais tias yog tsiaj txhu los ntawm IUCN. Tsis tas li ntawd xwb, qee cov neeg ntawm cov tsiaj no raug mob hnyav heev.

Endangered Dolphins - 1. Hector's Dolphin
Endangered Dolphins - 1. Hector's Dolphin

ob. Irrawaddy Dolphin

The Irawadi River dolphin (Orcaella brevirostris) tiag tiag yog ntses ntses dej hiav txwv, tab sis nws nyob ze rau ntawm ntug dej hiav txwv, thiab feem ntau tuaj yeem. mus nce toj roob hav.

Endangered Dolphins - 2. Irrawaddy River Dolphin
Endangered Dolphins - 2. Irrawaddy River Dolphin

3. Pink Amazon River Dolphin

The Amazon dej liab dolphin (Inia geoffrensis) tsis tsuas yog nyob hauv tus dej no xwb, tab sis kuj muaj ntau ntawm nws cov tributaries. Zoo li ntau hom tsiaj hauv hav zoov Amazon, cov ntses taub ntswg ntev no tseem muaj kev phom sij ntawm kev ploj tuag.

Endangered Dolphins - 3. Amazon River Pink Dolphin
Endangered Dolphins - 3. Amazon River Pink Dolphin

4. Ganges Dolphin

The Ganges dolphin (Platanista gangetica), yog suav tias yog kev puas tsuaj nyob rau thaj tsam Ganges River. Txawm li cas los xij, zoo li muaj nyob hauv lwm tus dej, txawm tias muaj kuab paug sib npaug.

Endangered Dolphins - 4. Ganges Dolphin
Endangered Dolphins - 4. Ganges Dolphin

5. Indus Dolphin

The Indus dolphin (Platanista minor) yog ib hom uas suav tias muaj kev phom sij ntawm kev ploj tuag, rau tib yam li lwm cov ntses taub ntswg ntev.

Endangered Dolphins - 5. Indus Dolphin
Endangered Dolphins - 5. Indus Dolphin

6. The Biji

Tseem tsis paub meej, tab sis muaj feem ntau tias the Baiji (Lipotes vexillifer) ploj tag lawm. Txawm li cas los xij, IUCN suav tias yog hom tsiaj uas muaj kev phom sij txaus ntshai.

Endangered Dolphins - 6. El Biji
Endangered Dolphins - 6. El Biji

Vim li cas dolphis thiaj muaj kev phom sij?

Raws li cov qauv no, tam sim no cov kab mob uas muaj kab mob no yuav zoo li yuav extinct nyob rau hauv lub xyoo tom ntej Lub ntsiab teeb meem ntawm dolphins dej hiav txwv yog lub gillnets Dolphins yooj yim ntes tau hauv hom net, uas txwv tsis pub nyob rau qee lub tebchaws.

Cov nets no tuaj yeem ua rau lawv cov ceg ua luam dej poob. Kev koom tes nrog cov nets yog qhov Tab sis tsis tas li ntawd xwb, ua paug ntawm cov dej hiav txwv thiab overfishing ua phem rau cov ntses taub ntswg ntev lawv muaj. muaj zaub mov tsawg thiab tsawg.

The causes of extinction of river dolphins are always the construction of dams In the regions where these animals live, they have been built in xyoo dhau los ntau tshaj 100 dams. Tsis tas li ntawd, kev tsim cov tuam txhab lag luam ntawm cov ntug dej hiav txwv ua rau lawv ua rau lawv rov qab los tam sim no ua tsis tau lossis tsis zoo li.

Discover also on our site 10 xav paub txog dolphins based on scientific studies.

Yuav ua li cas yog kuv pom tus ntses taub ntswg ntev?

Vim yog vim li cas tseem tab tom kawm, dolphins ntau dua tau tso rau ntawm ntug dej hiav txwv. Feem coob ntawm cov tsiaj no twb puam tsuaj thaum lawv xyaum tuag lawm, tab sis muaj coob leej tseem muaj ..

Nyob hauv cheeb tsam uas cov ntses taub ntswg ntev feem ntau yog puam, muaj chaw kho mob tshwj xeeb qhov twg koj tuaj yeem hu tau yog tias koj hla ib qho. Hauv lwm qhov chaw, cov chaw no tsis muaj, yog li peb yuav tsum ua yog hu rau tus xov tooj xwm ceev thiab, lub sijhawm no, ua kom cov tsiaj muaj dej, nchuav me ntsis dej hiav txwv hla nws daim tawv nqaij.

Peb yuav tsum tsis txhob sim rov qab ib tug ntses taub ntswg ntev tso rau hauv hiav txwv, qhov no yuav tsum tau txiav txim los ntawm ib tug kws kho tsiaj tshwj xeeb. Ntawm qhov tod tes, peb yuav tsum ntxhais neeg coob coob nyob ib ncig Cov tsiaj no tsis siv los kov, yog li ntawd peb yuav ua rau kom lawv ntxhov siab thiab ua rau kom tuag. Ib tus neeg ua kom nws muaj dej thaum cov kev pabcuam tshwj xeeb tuaj txog txaus.

Thov peb qhia koj cov video ntawm kev cawm tus ntses taub ntswg ntev: