The dzinogarisana of Bheya rakamira pachando. Apo polar samapere?

Polar kana Bheya rakamira pachando ndiyo chete icho Classified munyika dzakawanda (the US, Norway, Zimbabwe uye Russia) sezvo wechikepe mhuka. Kunze ndiye Canada, iyo zvino classifies kuti Bheya rakamira pachando kuti pano mhuka. Polar runotsigira ari pamusoro iri cheni zvokudya zviri kweArctic, apo ivo zvokudya kazhinji musi nemicherechedzo.

Ndivanaani vari polar samapere?

Maererano ichangobva Maererano zveBhaibheri zvakawanda, madzitateguru yekare polar runotsigira ndiyo zvisvundu nebere. mavambo yavo yakatanga kusvika nguva dzinenge 350 zviuru 6 mamiriyoni apfuura. Kusiyana nehanzvadzi dzavo shava kuti vararame panyika, polar mabheya vari zvakakwana kujairana kurarama mu kweArctic mumakungwa ari Far North. Pane akasiyana nevanhu vane polar unobereka. Kune mhando 19 akasiyana subpopulations ose polar unobereka. Maererano zvakawanda zvichangobva kudzidzwa, pane mapoka mana makuru. kupatsanura Izvi zvinotora se ayo hwaro nzvimbo inokosha apo polar samapere ice yakashatiswa mumufambiro, convergent chando, pamwaka chando uye archipelagos.

Polar nebere - ndiwo dzepedyo hama zvisvundu nebere. vanhurume Adult Kazhinji nokuyera kubva 350 600 makirogiramu. Adult vakadzi zviduku - kazhinji kwavo uremu anobva 150 kusvika 295 makirogiramu. Polar unobereka vanoonekwa kuti kwenguva refu. Musango, vanorarama avhareji 15 kusvika 18 makore, kunyange zvazvo zvinhu zvipenyu akanyorera vamwe-gore 30 vane vana vane makore. In pakutapwa, vamwe refu-akararama nemabheya vanosvika nemakore 40. Muenzaniso unoshamisa iyi dzabudapo muutapwa Medved Debbi wokuCanada, uyo akararama makore 42.

Varipi polar samapere?

The dzinogarisana of Bheya rakamira pachando - raro chairo rawakajaira, yaanogona kunovhima dzavo zvokudya, uye muwande, kugadzira chando mapako kuhwanda uye dzinodzivirira vana vadzo. Polar unobereka vanowanikwa munyika kweArctic. Kazhinji vanogara munzvimbo Vagari ari iwo chisimbiso akawanikwa. The dzinogarisana of Bheya rakamira pachando rinofukidza yose circumpolar Arctic.

mhuka huru Ava dzakashandisa kurarama mumvura uye panyika. Kusiyana nevamwe mabheya, kuti Bheya rakamira pachando ndiyo yakanaka kushambira, uye dzimwe nguva vanogona kuonekwa vanopfuura 160 chete kubva munyika kana chando. Pari, vanopfuura 40 muzana zvose polar samapere vanogara kuchamhembe Canada, musi aizi achitevedza pamhenderekedzo zviwi zvizhinji.

Kutyisidzirwa kutsakatika

Polar unobereka vanoonekwa kuti chaizvo vanoshupika mhando maererano kutsakatika. MuRussia, mhuka dziri muna Red Book, izvo zvinosanganisira mhuka mashoma kana panjodzi. Mune US, chena bere somunhu pangozi marudzi akanyorwa mazita "Mungozi Species". Canada anotenda kuti zvinoda kutarisirwa chaizvo mune National kwemarudzi panjodzi. mhuka kudzivirirwa matanho akatorwa nenguva zvemitemo chechetere.

Zvikonzero kukoshesa kurasikirwa dzinogarisana nokuda mamiriro ekunze. Masayendisiti kufungidzira kuti nokuda ndichibvunza kunyunguduka ice-zvikamu zviviri kubva muzvitatu yose nhamba polar samapere anogona kunyangarika muzana rino remakore. Kudzidza rinoratidzawo kuti pachine fixable, kana mune ramangwana uchatorwa kuti kuderedza girinihausi gasi choutsi. A nzvimbo polar samapere havafaniri kuva yakasviba nokuda zvebhizimisi kushandiswa kweArctic.

Polar unobereka: dzinogarisana

Mabheya chakatorwa nokuti chando okunze, apo yechando tembiricha aigona akadonhedza kuti -45º C. mhuka idzi zvepfungwa maviri mbava layer runovabatsira varambe kupisa muviri. Uyezve, mune zvakanaka nguva ivo vane gobvu rukoko mafuta. Compact nzeve diki uye muswe uyewo kudzivirira kupisa kurasikirwa. Kutaura zvazviri, polar mabheya vane zvakawanda nezvinetso overheating pane nechando, kunyanya kana kumhanya. Hunt anovabatsira pfungwa huru kunhuwidza, uye avo nenzara vanogona kuchengeta kugadzirwa ari 40-90 makirogiramu.

Isa Bheya rakamira pachando chuma zvokudya

Habitat nokuti Negima zvikara ava kweArctic murenje. White Bear pamusoro kweArctic chikafu cheni. Saka yepanyama mwero kunoitwa kuitira kudzivisa yokuwandisa dzinogarisana. Kana akura bere iri chimiro, inoumbwa muviri mafuta muzvitoro anodzokororwa pakati kudya.

Runoshivirira kuvhima iwo zvisimbiso, Bearded zvisimbiso, baleen hove huru. Izvi chena uye fluffy mhuka dziri gurusa vanoshambira: vanoshandisa netsoka dzakapfava zvavo pamberi sezvinoita zvikwasviso apo makumbo avo hadzi ave vakasunungura. Mukuwedzera, vane kunoshamisa kunhuhwidza: zvavo, vanogona hwema, chinhambwe chimwe kiromita.

zvizvarwa

Zvichienderana ezvinhu muviri, nehadzi kazhinji bereka muchiedza maviri kana matatu wayo 4-6 makore ose. Panyaya iyi, polar maperekadzi tiri mumwe slowest dzokubereka kutenderera zvakasikwa, kuunza vana, kazhinji hapana kupfuura kashanu pane hwose. The dzinogarisana of Bheya rakamira pachando runoita kusarudza munhu akakodzera pokurara calving. The wayo vanoberekerwa November kana December muna chando mumapako, inonzi maternity dzokuvanda.

Pakuzvarwa, vana Dzakafanana guru makonzo chena, izvo tinosvika kureba 30-35 masendimita nokuyera pfuurei hafu kilogram. Mapofu, mukanwa uye akafukidza pfupi, nyoro mbava, vari zvachose novimba mai vake kubva yake ushamwari uye zvokudya. Young kukura nokukurumidza zvikuru nemhaka mukuru-mafuta mukaka waamai vavo, vane kugutsikana mafuta anenge 31%. Little unobereka kugara naamai vavo kusvikira makore 2.5.

dzinogarisana zvinhu

The dzinogarisana of Bheya rakamira pachando dzingasiyana, sezvo mhuka inogona kuita akatama pakureba nyika uye mvura achitevedza Continental kumiganhu uye zvitsuwa. Vamwe vanhu vanopedza akawanda gore panyika. vakadzi Most pamuviri kupedzera matsutso uye chando pasi ravo maternity mumapako.

Mhepo tembiricha iri kweArctic paavhareji rinosvika -34 ° C muna yechando uye chirimo 0 ° C. The coldest munzvimbo chando kuchamhembe-nechokumabvazuva kweSiberia, apo tembiricha iri akatura kuna -69 ° C. Akanyanya kupisa nzvimbo muchirimo vaiona kure negungwa Siberia nharaunda, Alaska uye Canada, apo tembiricha inogona kusvika + 32 ° C.

Polar unobereka dzinogarisana iyo weveta kuchamhembe polar kunzvimbo, kazhinji vanotaurwa muna mifananidzo akakurumbira ingano uye mabhuku evana, pamwe PENGUIN. Zvisinei, vanogara pasi nematanda siyana. Polar unobereka regai kugara Antarctica: PENGUIN vanogara imomo kondinendi ice-akafukidzwa yakapoteredzwa nyanza, uye Bheya rakamira pachando dzinogarisana - ndiyo kweArctic.

Ndivo, mhuka idzi zvinoshamisa - Polár unobereka.