I-swan encane ingaphansi kwe-swan yaseMelika, kodwa ngezinye izikhathi ibalwa njengezinhlobo ezihlukile. Okungokwama-Eukaryote, uhlobo lweChord, ukuhleleka kwe-Anseriformes, umndeni wakwaDuck, uhlobo lweSwan.
Kuyinyoni engandile ethambekele ekufudukeni. Intwasahlobo itholakala kusukela ngoMbasa kuya kuMeyi. Ifuduka ezihambweni ezincane. Kaningi, ngokubodwa, izindwendwe ezihlangene zamanye ama-swans.
Incazelo
Ukuvela kweswan elincane kufana ne-whooper. Kodwa-ke, eyokugcina inkulu ngosayizi. Isici esihlukile sedada elincanyana elivela kwabanye uqhwaku olumnyama oluncane oluphuzi. AmaJuveniles akhombisa uqhwaku olumpunga okhanyayo ngombala obomvana engxenyeni eyodwa bese kuba mnyama ngaphezulu.
Ihleli emanzini, leli dada elincane liqinisa amaphiko alo liye esifundeni esingemuva. Uma kuqhathaniswa ne-whooper, intamo yommeleli omncane imfushane futhi iyajiya, futhi ayinakho ukugoba kwesici engxenyeni engezansi. Ngokubeka laba bantu ababili eceleni, umehluko ocacile ngosayizi womzimba ungabonakala.
Kuma-swans amadala, amehlo nemilenze kumnyama ngokugqamile, ngamachwane, anombala ophuzi. Abamele abasebasha balula: engxenyeni ye-dorsal, kunombala ompunga, i-dorsum yentamo nezinhlangothi zekhanda zinsundu eshunqa. Abantu bathola umbala omhlophe ngonyaka wokuqala. Inhloko, kanye nentamo, ithola umbala wayo weqiniso kuphela ngonyaka wesithathu wokuphila. Intamo nengxenye yangaphakathi yentamo imhlophe.
Isisekelo somlomo wamachwane amancane, kuze kufike emehlweni, sikhanya ngokucebile ngombala ophuzi omncane. Izimpaphe zibomvana eduze kwamakhala, zimpunga phezulu. Amakhona omlomo amnyama. Ubude bomuntu omdala bungafinyelela ku-1.15 - 1.27 m.Iphiko lingamamitha ayi-1.8 - 2.11.
Indawo yokuhlala
Idada elincane linendawo yokuhlala emangalisayo. Lezi zinhlobo zihlala ezindaweni zaseYurophu nase-Asia zeRussian Federation, i-tundra. Futhi uhlala eziqhingini zaseKolguev, Vaigach nengxenye eseningizimu yeNovaya Zemlya. Phambilini, izidleke zemfoloko e-Kola Peninsula, kepha zanyamalala, kanye nakwezinye izifunda zaseYamala, eTaimyr.
Namuhla, i-swan encane ihlukaniswe ngabantu basentshonalanga nasempumalanga. Kwabanye, lokhu kwanele ukuwahlukanisa njengama-subspecies ahlukile. Isidleke sabantu basentshonalanga senzeka e-tundra: kusuka eKola Peninsula kuya endaweni engasogwini yaseTaimyr.
Engxenyeni eseningizimu, zingatholakala kuze kufike ehlathini-itundra esigodini saseYenisei. Ungabona futhi ensimini yeKinin, inhlonhlo yaseYugorsky. Izidleke zitholakala nasezindaweni ezisogwini zaseYamala naseGydan. Abantu basempumalanga bathanda ukuhlala endaweni enogu olusolwandle. Ukuqala kusukela eLena river delta futhi uphele ngeChaunskaya lowland.
Ubusika baseNtshonalanga eGreat Britain, France, Netherlands naseLwandle iCaspian. Abantu abasempumalanga bathanda amazwe ase-Asia. Izinyoni zivame ukuhlala ezindaweni zaseChina, Japan, Korea. Ngokuvamile, bachitha cishe izinyanga ezine ku-tundra.
Ukudla okunomsoco
Ukudla kwama-swans amancane akuhlukile kakhulu kokunye. Uncamela ukudla kokutshala, ulwelwe namakhambi asemhlabathini, amajikijolo. Futhi, ama-swans ngeke anikele ngezibiliboco ezinjengezingenamgogodla nezinhlanzi ezincane.
Amaqiniso Athandekayo
- Ikharavani enkulu efudukayo yabonwa ngo-1986 ezindaweni ezisezansi zeTurgai. Umhlambi wawunama-swans amancane angama-120.
- Bambalwa abantu abaziyo, kepha ama-swans ahlala yedwa. Bakhetha umngane impilo yabo yonke. Zakha ngazimbili ngokuvamile ngonyaka wesibili wokuphila.
- Umhlobo lo ubhalwe kuRed Book. Kufakiwe esigabeni sokutakula nangaphansi kokugadwa. Abantu basentshonalanga babuyiselwe cishe kuzo zonke izindawo ezihlala abantu. EMpumalanga - isalulama.
