Limela tse fokolang, lehloa le lehloa ke tsona litšobotsi tse ka sehloohong tsa lehoatata la arctic. Sebaka se sa tloaelehang se fetela libakeng tse ka leboea ho Asia le Amerika Leboea. Libaka tse nang le lehloa le tsona li fumaneha lihlekehlekeng tsa Arctic Basin, tse sebakeng sa lebanta la polar. Sebaka sa lehoatata la Arctic se koahetsoe haholo ke likhechana tsa majoe le maloanlahla.
Tlhaloso
Lehoatata le lehloa le sebakeng se karolong e phahameng ea Arctic. E koahela sebaka se seholo mme e namela leqhoeng le lehloeng ho feta likete tse likete. Boemo ba leholimo bo sa thabiseng bo fetohile lebaka la limela tse futsanehileng 'me, ka lebaka leo, ho boetse ho na le baemeli ba fokolang haholo ba liphoofolo. Ke liphoofolo tse fokolang tse khonang ho ikamahanya le maemo a batang haholo, a fihlelang -60 degrees mariha. Lehlabula boemo bo betere haholo, empa likhato ha li phahame ho feta +3. Pula ea leholimo lehoatateng la arctic ha e fete 400 mm. Nakong ea mofuthu, leqhoa le qhibiliha, 'me mobu o kolobisoa ke lehloa.
Boemo ba leholimo bo bobe bo etsa hore mefuta e mengata ea liphoofolo e se ke ea phela libakeng tsena. Sekoahelo, se nang le lehloa le leqhoa, se nka likhoeli tse leshome le metso e 'meli. Bosiu ba polar ho nkoa e le nako e thata ka ho fetisisa lehoatateng. E ka nka likhoeli tse ka bang tse tšeletseng. Ka nako ena, mocheso o fokotsehile ho isa karolelong ea likhato tse -40, hammoho le meea ea maholiotsoana e sa khaotseng, lifefo tse matla. Leha ho bonesoa lehlabuleng, mobu o ke ke oa qhibiliha hobane ho na le mocheso o fokolang haholo. Nako ena ea selemo e khetholloa ke ho fifala, pula le lehloa, moholi o teteaneng le ho baloa ha mocheso kahare ho likhato tse 0.
Liphoofolo tsa lehoatateng
Sebaka sa mahoatata a Arctic a Amerika Leboea ke lehae la palo e tlase ea liphoofolo. Sena se bakoa ke limela tse futsanehileng, tse ka bang mohloli oa lijo bakeng sa liphoofolo. Har'a baemeli ba hlahelletseng ba lefats'e la liphoofolo ke litiiso, liphiri tsa arctic, lilamunu, li-walrus, liqibi, libere tsa polar le likhama.
Tiiso
Phiri ea Arctic
Lemming
Walrus
Tiiso
Bere ea pola
Khama ea likhama
Liphooko tsa Arctic, likhomo tsa musk, li-guillemots, liphokojoe tsa arctic, li-rose gulls, li-eider le li-puffin le tsona li ikamahanya le maemo a leholimo a thata. Bakeng sa sehlopha sa li-cetacean (li-narwhals, maruarua a marumo, li-dolphin / beluga whale), mahoatata a arctic le ona ke maemo a bophelo a amohelehang.
Khomo ea musk
Qetellong
Leruarua la Bowhead
Har'a palo e fokolang ea liphoofolo tse fumanoang mahoatateng a batang a Amerika Leboea, linonyana li nkuoa e le tsona tse atileng ka ho fetisisa. Moemeli ea ikhethang ke lehlaka la rose, le hōlang ho fihlela ho cm cm 35. Boima ba linonyana bo fihla ho 250 g, ba mamella mariha a thata habonolo mme ba phela kaholimo ho leoatle le koahetsoeng ke lehloa le hoholehang.
Leoatleng la Rose
Li-Guillemot li khetha ho lula lilomong tse phahameng haholo 'me ha li utloe bohloko ha li le ka har'a leqhoa.
Matata a Leboea (li-eider) a ikakhela ka setotsoana metsing a leqhoa ho isa botebong ba limithara tse 20. Sephooko sa polar se nkuoa e le nonyana e kholo ka ho fetesisa le e bohale. Ke sebata se bolaoang ka sehloho ke litoeba, masea liphoofolo le linonyana tse ling.
Limela tsa lehoatata
Baemeli ba ka sehloohong ba limela tsa mahoatata a leqhoa ke li-mosses, lichen, herbaceous limela (lijo-thollo, jala moutloa). Ka linako tse ling maemong a thata o ka fumana Alpine foxtail, arctic pike, buttercup, saxifrage ea lehloa, poppy ea polar le li-mushroom tse fapaneng, monokotsoai (cranberries, lingonberries, cloudberry).
Lithaba tsa Alpine foxtail
Pike ea Arctic
Buttercup
Saxifrage ea lehloa
Poppy ea polar
Cranberry
Lingonberry
Cloudberry
Ka kakaretso limela tsa mahoatata a Arctic a Amerika Leboea ha se mefuta e fetang 350 ea limela. Maemo a mabe a sitisa tšebetso ea ho etsa mobu, hobane le hlabula lefatše ha le na nako ea ho qhibiliha. Hape, bolele bo khetholloa ka sehlopha se ikemetseng, seo ho nang le mefuta e ka bang 150 ho sona.
