Little Goose Goose (Branta hutchinsii) ke ea taelo ea Anseriformes.
Matšoao a kantle a khantsi e nyane ea Canada
Goose Goose e nyane ka mmele o ka bang 76 cm.
Wingspan: 109 - 119 cm.
Boima ba linonyana bo fihla ho ligrama tse 950 - 3000.
Ka chebahalo e ts'oana haholo le likhantsi tsa Canada, ka hona e bitsoa "likhantsi tse nyane tsa canada". Pejana, likhantsi tsa Canada li ne li nkuoa e le li-subspecies tsa likhantsi tsa Canada.
Haeba u beha linonyana ka bobeli tsa mefuta e fapaneng ka lehlakoreng le leng, ka lebaka la tekanyetso e bonolo ea boima ba 'mele, ho tla ba thata haholo ho li khetholla, hobane likhantši tse kholo ka ho fetisisa tsa Canada le likhantsi tse nyane haholo tsa Canada li na le boima bo batlang bo lekana, ho feta likilogerama tse tharo. Leha ho le joalo, maemong a mangata, likhantši tsa Canada ke linonyana tse kholo haholo, li ka fihla ho 6.8 kg. Ha e fofa, Lesser Goose e ka khetholloa ka molala oa eona o mokhuts'oane haholo. Mokhoa oa boits'oaro ou lumella ho khetholla likhantsi tsa Canada ka ho letsa haholo.
Ka likhantsi tse nyane tsa Canada, molala le hlooho li ntšo.
Botlaaseng ba hlooho bo tšeloa ke theipi e tšoeu e pharalletseng e tlohang tsebeng e buleha ho ea monyako o mong. Masiba a 'mele ka lehlaka le bosootho bo sootho. Li-paw li ntšo. Mohatla o motsho, o fapane ka ho hlaka ka mmala le moqomo, moo ho tsamaeang le mola o sephara o sephara. Molomo o mokgutshwane e bile o sebopeho se fapaneng le sa dikhantsi tsa Canada. Molaleng o mosesane o mosoeu o khabisitse botlaaseng ba molala ebe o atoloha ka tlase.
Mekhoa ea Goose e Nyane ea Canada
Little Goose e lula libakeng tse fapaneng nakong ea ho ikatisa, haholoholo tundra, hangata e pela metsi. E lula makhulong, libetheng tsa lehlaka kapa libakeng tseo lifate tse nyane le lihlahla tse nang le monokotšoai li melang teng, ke lijo tsa mantlha tsa linonyana tse seng li holile ebile e le mothusi.
Mariha le nakong ea ho falla, likhantsi tse nyane tsa Canada li khetha metsi a ka hare ho naha: matša, linoka le mekhoabo. Libakeng tse lebopong, mofuta ona oa linonyana o ka fumanoa libakeng tse mokhoabo tse nang le metsi a leoatle, likou le libaka tse nang le seretse sebakeng sa maqhubu, matangoana a nang le metsi a letsoai, joang le mobu o lemehang. Nakong ena, likhantši tse nyane tsa Canada le tsona li ka bonoa mohloeng o mongobo oa litoropo le mabopong a toropo, empa kamehla pela metsi.
Kabo ea Little Goose Goose
Sehlaha sa likhantsi tsa Brent leboea le bohareng ba Canada le Alaska. Ka mose ho Bering Strait, e kile ea e-ba pono e tloaelehileng Hloahloeng ea Kamtchaka, Siberia e ka bochabela, Chaena leboea le Japane. Mariha, linonyana li fofela sebakeng se nang le maemo a leholimo a futhumetseng, ho ea United States (Texas) le Mexico.
Goose Goose e theha li-subspecies tse hlano, tse fapaneng haholo ka boholo le boima ba 'mele. Mmala oa maqhubu ha se mokhoa o ka sehloohong oa ho khetha li-subspecies.
- B. h. hutchinsii o lula leboea, bohareng ba Canada, Greenland, boima bo tloaelehileng - 2.27 kg, mariha Texas le leboea Mexico.
- Leucopareia e hlaha Lihlekehlekeng tsa Aleutian, e boima ba 2.27 kg, le li-overwinters Central California.
- B. minima - bophirima ho Alaska, boima - 1.59 kg, mariha California le ho fihla boroa Mexico.
- B. taverneri e lula leboea-bochabela ho Alaska, leboea ho Canada, e fallela boroa-bophirima ho United States le Mexico.
- B. Asiatica mohlomong o lula Siberia ka lehlakoreng le leng la Bering Strait, empa boteng ba subspecies ena boa belaetsa.
Boitšoaro bo ikhethang ba likhantsi tse nyane tsa Canada
Nakong ea ho falla le mariha, likhantši tse nyane tsa Canada ke linonyana tse ratang botsoalle haholo. Batho ka bomong le malapa ba theha mekhahlelo e meholo e lekaneng hammoho le likhantsi tsa Canada. Ha nako ea ho ikatisa e atamela, Brent likhantsi li sireletsa naha ea tsona ka bohale 'me li bontša boitšoaro bo mabifi.
Mofuta ona o oa falla, metopa ea batho ba fallang e na le malapa le batho ka bomong. Nakong ea ho fofa, mohlape o tsamaea ka ho kobeha o bōpehileng joaloka V mme, e le molao, o lula bophahamong bo tlase lipakeng tsa limithara tse 300 le 1000. Lifofane li sebetsa ka shoalane 'me li tsoelapele lihora tse' maloa ntle le tšitiso. Lebelo le tloaelehileng la maeto ke likilomitara tse 50 ka hora.
Ho tsoala ha khantsi e nyane
Likhantši tsa Brent li fihlela kholo ea thobalano selemong sa bobeli. Ba tloaetse ho ba le mosali a le mong 'me ba theha banyalani ba nako e telele. Leha ho le joalo, haeba nonyana e le 'ngoe e shoa, motho oa bobeli o fumana molekane e mocha. Ho hlahisa sehlaha sa likhantsi sebakeng se sa feleng. E tšehali e khetha sebaka sebakeng se phahameng, se fanang ka pono e ntle ea letamo kapa noka. Ka linako tse ling sehlaha se fumaneha sehlekehlekeng se senyane bohareng ba noka. E 'ngoe ea li-subspecies, e lulang lihlekehlekeng tsa Aleutian, e lula lihlaheng tse leralleng kapa leralleng.
Hangata lihlaha tsa khale li sebelisoa hape.
Sehlaha se thehiloe ke boriba, boriba, sedge le ho khabisoa ka masiba. Ho na le mahe a 4 kapa a 5 ka clutch, moo e tšehali feela e lutseng matsatsi a 11-14. Ka nako ena, banna ba lebela clutch. Litsuonyana li tlohela sehlaha kamora lihora tse 24, li se li le lilemong tsena li khona ho tsamaea, ho sesa, ho qoela le ho iphepa ka botsona. Kamora libeke tse 6-7, ba ikemela ka botlalo mme ba tloha koung. Leha ho le joalo, likhantši tse nyane li lula sehlopheng sa lelapa mariha a pele.
Ho Fepa Khantsi e Nyane
Lehlabuleng sebakeng sa tundra, likhantši tse nyane tsa Canada li fepa haholo lijong tsa limela: joang, lehlaka le monokotsoai. Nakoana pele li falla, li ja ka matla lipeo tsa lehlaka e le hore li bokelle mafura a mangata, e leng mohloli oa matla nakong ea lifofane tse telele.
Brent likhantsi li ntša lijo ka metsing, li qoelisa hlooho le molala oa tsona ho fihlela limela tse hlokoang.
Mariha, linonyana li emisa masimong, moo li jang koro ea mariha le harese. Li boetse li fepa likokoanyana, li-crustaceans le li-molluscs.
Boemo ba paballo ea Little Goose
Little Goose, joalo ka likhantsi tsa Canada, ke e 'ngoe ea li-Anseriformes tse atileng haholo kontinenteng ea Amerika Leboea. Balebeli ba linonyana ba na le bothata bo tebileng ba ho khetholla li-subspecies molemong oa ho khetholla li-subspecies tse tlokotsing e kholo ea litšokelo tse fapaneng. Little Goose e ela hloko ts'ilafalo ea tikoloho ka metsoako ea loto le meriana e bolaeang likokonyana. Mofuta ona o tlasa khatello ea litsomi. Ho sebelisoa hampe ha masimo a khase le oli ho la Arctic ho lebisa phelisong ea tikoloho, ho baka kotsi e itseng bakeng sa boteng ba likhantši tse nyane tsa Canada tundra.
B. leucopareia subspecies, e ahileng lihlekehlekeng tsa Aleutian, e tlas'a ts'ireletso e felletseng, empa mathata a ho khetholla linonyana tsa mofuta ona o khethehileng ke litsomi a lebisa phelisong e sa rateheng ea linonyana.
https://www.youtube.com/watch?v=PAn-cSD16H0
