A karni na ashirin, dabbar sika tana gab da bacewa; 'yan kadan ne kawai suka rage daga tsohuwar yalwar mutanen wannan jinsin. Babban dalilan da suka haifar da raguwar tsananin sikari sun hada da: kisan dabba don nama, fata, tururuwa, ko yanayin rayuwa mara kyau (rashin abinci). A cikin wariyar jinsin, ba mutane kawai suka shiga ba, har ma da dabbobi masu farauta.
Bayani
Dabbar Sika na daga cikin nau'in Deer na ainihi, wanda yake na dangin barewa. Wannan jinsin dawa an banbanta shi da tsarin mulki mai kyaun jiki, ana bayyana kyanta yayin da ya kai shekaru 3, lokacin da maza masu mata suka kai tsayinsu na karshe da nauyin da ya dace.
A lokacin bazara, launukan mata da maza kusan iri ɗaya ne, launi ne mai launi ja mai fari-fari a cikin tabo. A lokacin hunturu, gashin maza ya yi duhu kuma ya sami launin zaitun-launin ruwan kasa, yayin da mata suke da launin toka-toka. Manya maza zasu iya kaiwa mita 1.6-1.8 a tsayi kuma mita 0.95-1.12 a tsayi a busasshiyar. Nauyin babban barewa shine kilogram 75-130. Mata sun fi na maza yawa.
Babban girman kai da dukiyar namiji shine ƙahoni masu nuna huɗu, tsayinsu na iya bambanta daga santimita 65-79, tare da halayyar launin ruwan kasa.
Launin kowane wakilin wannan nau'in na mutum ne kuma yana iya zama mai haske ko duhu ta sautuna da yawa. A kan dutsen dawa, launi yana da launuka da yawa duhu, kuma a kan gabobin ya fi haske da paler. Jikin dabba yana cike da ɗigon wuri, waɗanda suka fi girma a ciki, kuma sun fi ƙanƙan da yawa a bayansa. Wani lokaci fararen fata suna yin ratsi, rigar na iya kai tsawon santimita 7.
Littafin Ja
Dabbar Ussuri sika tana daga nau'ikan nau'ikan dabbobi kuma an lasafta ta cikin littafin Red. Mazaunin wannan nau'in shine yankin kudancin kasar Sin, haka kuma a yankin Primorsky a cikin kasar Rasha. Adadin mutane bai wuce kawuna dubu 3 ba.
Littafin Ja Littafin doka ne na hukuma; ya ƙunshi jerin dabbobi da tsirrai waɗanda ke cikin haɗari ko haɗari. Irin waɗannan dabbobi suna buƙatar kariya. Kowace ƙasa tana da jerin ja, a wasu yanayi, wani yanki ko yanki.
A cikin karni na 20, an kuma sanya barewar sikari a cikin Littafin Ja. An hana farautar wannan nau'in, idan har aka kashe barewar sika, zai zama farauta kuma doka za ta hukunta shi.
A cikin Rasha, barewar Ussuri tana maido da lambobinta a cikin ajiyar Lazovsky, haka kuma a cikin ajiyar Vasilkovsky. A cikin karni na XXI, yana yiwuwa a cimma daidaituwa da haɓaka yawan wannan nau'in.
Sika rayuwar barewa
Dabbobi suna mamaye yankuna daban-daban. Lan lamuni sun fi son kiwo a filayen hekta 100-200, namiji mai harem yana buƙatar kadada 400, kuma garken sama da kawuna 15 yana buƙatar kadada 900. Lokacin da lokacin ruttu ya ƙare, mazan da suka manyanta suna yin ƙananan ƙungiyoyi. Garken na iya ƙunsar matasa na jinsi daban-daban, waɗanda ba su kai shekara 3 ba. Adadin garken yana girma zuwa lokacin hunturu, musamman idan shekarar tayi kyau ga girbi.
Maza waɗanda suka kai shekaru 3-4 suna shiga cikin wasannin mating; suna iya samun lalata har mata 4. A cikin ajiyar yanayi, namiji mai karfi zai iya rufe mata 10 zuwa 20. Yaƙe-yaƙe na maza da yawa ba su da yawa. Mace tana haihuwa tun watanni 7.5, haihuwa zata faɗi a farkon watan Yuni.
A lokacin bazara, barewar sikari tana ciyarwa dare da rana, kuma suna aiki a ranakun bayyana a hunturu. A lokacin yanayi mara kyau, alal misali, yayin dusar ƙanƙara, barewa sun fi son kwanciya a cikin dazuzzuka masu yawa.
Idan babu dusar ƙanƙara, baligi zai iya motsawa cikin sauri, a sauƙaƙe zai shawo kan matsaloli masu tsayin mita 1.7. Gudun dusar kankara yana jinkirta motsin dabbobi, yana haifar musu da motsawa cikin yanayi kuma yana haifar da matsalar neman abinci.
Dawa Sika na iya yin ƙaura na lokaci-lokaci. Tsawon rayuwar barewa a cikin daji bai fi shekara 15 ba. Rage rayukansu: cututtuka, yunwa, masu farauta, mafarauta. A cikin tanadi da namun daji, dabbar barewa na iya rayuwa har zuwa shekaru 21.
Inda yake zaune
A cikin karni na 19, silar barewa ta kasance a arewa maso gabashin China, Vietnam ta Arewa, Japan, da Koriya. A yau wannan nau'in ya fi kasancewa a Gabashin Asiya, New Zealand da Rasha.
A cikin 1940, an kafa barewar sifa a cikin waɗannan wuraren ajiyar masu zuwa:
- Ilmensky;
- Khopersky;
- Mordovian;
- Buzuluk;
- Oksky;
- Tebedinsky.
Barewar Sika ta fi son gangaren kudu da kudu maso gabas na tsaunukan bakin teku, wanda dusar kankara ke kwance a kan ta na wani gajeren lokaci a lokacin hunturu. Yaran yara da mata sun fi son zama kusa da teku ko ƙasa tare da gangaren.
Abin da yake ci
Wannan nau'in barewar tana cin abincin tsire ne kawai, wanda kusan akwai nau'ikan 400. A cikin Primorye da Gabashin Asiya, kashi 70% na abincin shine bishiyoyi da bishiyoyi. Dabbar sifa tana amfani dashi azaman abinci:
- itacen oak, wato acorns, buds, ganye, harbe;
- Linden da Amur inabi;
- toka, gyada Manchurian;
- maple, Elm da sedges.
Dabbar tana amfani da bawon bishiyoyi don abinci tun a tsakiyar hunturu, lokacin da manyan filaye suka cika da dusar ƙanƙara, kuma ba a kula da rassan alder, Willow da cherry cherry. Suna da wuya su sha ruwan teku.
