A iyakacin duniya bears ci? Kada iyakacin duniya bears ci penguins?

Iyakacin duniya (ko fari) bear - carnivorous dabbobi masu shayarwa na ga iyali na Bear. Ursus maritimus - ta Latin sunan. Inda ya na zaune, ya ci a iyakacin duniya bear? Kamar yadda na ninka, kuma hulɗa tare da wasu dabbobi? Mene ne yawan al'ummarta? Inda dabba rayuwarsu? Game da wannan daga baya a cikin labarin.

asalin

Asalinsu zaton rabuwa na ruwan kasa da fari bear faru game da 45-150 dubu. Shekaru da suka wuce, mai yiwuwa a cikin ƙasa sun shagaltar da zamani Ireland. Amma a cikin 'yan karatu an gano cewa, da rabuwa faru game 338-934 dubu. Shekaru da suka wuce. Game da mutum ɗari, mutum ɗari biyu da suka wuce akwai interbreeding jinsunan wakilan, wanda a cikin sa cikin hybridization. A sakamakon haka, duk iyakacin duniya take ɗauke da zauna cikin duniya a yau ne zuriyar sakamakon hybrids.

external data

A iyakacin duniya bear ne daya daga cikin mafi girma wakilan da terrestrial dabbobi masu shayarwa na domin yara. Girmancin mutane za su iya isa 3 mita, nauyi - har zuwa ton. Mafi na kowa namiji, yin la'akari daga 400 zuwa 450 kg, kuma su jiki tsawon -. 250 cm kafada tsawo ne tsakanin 130 da kuma 150 santimita. Mãtan ku auna nauyi da yawa kasa - daga 200 zuwa 300 kg. The karami wakilan rayuwa a Svalbard, da kuma manyan - a cikin ruwan Bering Sea. Sauran bears fari daban-daban lebur kai da kuma dogon wuya. launin fata - black. Fur iya samun launi daga rawaya zuwa fari (a cikin bazara "Jawo gashi" iya fatsifatsi saboda da m daukan hotuna zuwa hasken rana kai tsaye). Dankon ne m, da ulu da kanta ne bã tãre da pigment. Translucent hairs iya watsin hasken ultraviolet, inda murfin yakan mallaki insulating Properties. A dauke da fitar da UV-harbi iyakacin duniya bear iya bayyana duhu da kuma wani lokacin za su iya, kuma "tafi kore" ko. Wannan yakan auku idan akwai wani farin bear a zoo, a cikin wani zafi sauyin yanayi. Saboda da musamman tsarin da hairs a su infest microscopic algae - Saboda haka kore fãtun jikinsu. Domin ba su daskare da ba zamewa a kan kankara, da tafin duk wata gabar jiki buga fitar da gashi. Tsakanin yatsunsu palama located a kan gaba paws ba m bristles. Daga baya a cikin labarin, daki-daki game da abin da cin abinci na iyakacin duniya Bears.

rayuwa

Iyakacin duniya bears rayuwa a cikin azumi da kuma rugujewa kankara floes. Akwai, suna farauta da kuma mined su main abinci. A iyakacin duniya bears ci? Su main abinci ne zomo (teku), ringed hatimi, dabbar walrus da sauran marine dabbobi. Its ganima kama, sneaking up daga baya cover ko kusa da rijiyoyin. Ya kamata cire azabtar daga ruwa shugaban, kamar dabba dungu stun ta kuma jan a bakin. Iyakacin duniya bear iya juyar da kankara floe a kan wanda zauna cikin like. Nemi dabbar walrus gudanar kawai a kan ƙasar. Yawancin lokaci, yanã cĩ kitsen da kuma fata. A cikin hali na yunwa mai tsanani, kuma ya cinye dukan gawar wani dabbar walrus. Amma yawanci ragowar wata dabba kama sa'an nan ya ci Foxes. Amma wannan ba duk da cewa ciyar a kan iyakacin duniya Bears. Lokacin da za su iya karba da kuma mũshe, matattu kajin, kifi, qwai. Har ila yau, a cikin su rage cin abinci kunshi algae da ciyawa. Idan iyakacin duniya bears bayyana wa populated mutum yankunan, sa'an nan za ka iya ganin su a cikin shara, ba da nisa daga landfill na iyali, kuma abinci sharar gida. Akwai ko da lokuta da fashi rumfarsa ta saida Stores iyakacin duniya expeditions. Duk abin da ciyar a kan iyakacin duniya beyar, na taimaka wa jari a cikin hanta na bitamin A. Wannan fili shi ne ba a jikinsu a cikin manyan isa yawa. Akwai ma bayani game da dama lokuta na hanta yawan guba. Kada iyakacin duniya bears ci penguins? Wannan batu zai iya faruwa a cikin wadanda suka ba su saba da mazauninsu na wadannan dabbobi. An sani cewa penguins zauna ta Kudu da kuma na iyakacin duniya Bears - da Arewa iyakacin duniya. Karkashin yanayi, don ya tarye su iya ba. Sama an gaya mana cewa cin iyakacin duniya Bears. Da kuma wakilan Kudu iyakacin duniya ba kunshe a su rage cin abinci.

hijira

Bisa ga shekara-shekara canji a cikin iyakoki na iyakacin duniya kankara iyakoki, na iyakacin duniya Bears sa yanayi mika mulki. A lokacin rani, da suka fada baya kusa da iyakacin duniya a cikin hunturu - ƙaura zuwa kudancin yankin, zuwa kasar. Duk da cewa na iyakacin duniya Bears ne mafi yawa kiyaye a kan kankara da kuma iyakar, su iya kwanta a cikin kogo a kan tsibirin, ko a kan babban yankin, a wasu lokuta, game da hamsin kilomita daga teku. Mai goge, tsowon lokacin da dabam daga 50 days zuwa 80, halin ayan ciki mace. Singles samochki da maza ba faruwa a kowace shekara, kuma a kan wani fairly gajeren lokaci.

hali

Duk da seeming a duban farko, clumsiness, bears ne sauri da kuma nimble, ko da a kan ƙasar. A cikin ruwa, suka nutse har da iyo quite sauƙi. Daga samun rigar da sanyi, a cikin ruwa bear ta jiki ana kiyaye shi ta wani m da sosai lokacin farin ciki gashi. Special Na'urar aiki da aka yi da da subcutaneous mai Layer har zuwa goma santimita. Sake kama wani dabba wajen taimaka wa ta haske da launi. Iyakacin duniya bears suna sosai ɓullo da ji da gani da wari. Suke yiwa abincinsu, suna iya riga ganin 'yan kilomita, da kuma, alal misali, zuwa sansancewa da hatimi na mita 800.

haifuwa

Ghosn farawa a iyakacin duniya Bears a watan Maris da kuma ƙare a watan Yuni. A estrus na mace mafi yawa ana bi ta uku ko hudu maza. By Oktoba, wata mace fara cire adibas a cikin kogo. Bears da aka fi so wuraren da suka tara (na. Wrangel, misali). A kowace shekara a irin wannan wurare, akwai game 150-200 ramukan. A bear dajin zaunar kawai ta tsakiyar watan Nuwamba, a karshen da latent mataki na gestation jariran. All Pregnancy yana 230-250 kwana. A karshen ko a tsakiyar na Arctic hunturu bear kwiyakwiyanta aka haife. The sosai guda mace, duk da haka, ya zauna dormant har da na Afrilu. Ba dole ne a ce cewa bears da low haihuwa m. A farko zuriyarsu bayyana a cikin 4-8 shekaru. Sauran ranakun haihuwar ta auku kowane biyu zuwa uku da shekaru, a daya zuriyar dabbobi na daya zuwa uku kwiyakwiyanta. A sakamakon haka, a rayuwa mace shaida babu fiye da goma ko goma sha biyar matasa. Jariri da nauyi na daga 450 zuwa 750 grams. Bayan watanni uku da su da mace ya fita daga kogon, kuma yana farawa yawo rayuwa. Don goma sha takwas matasa zaman tare da mahaifiyarsa. A wannan lokacin, shi Ciyarwar da kwiyakwiyanta tare da madara.

ginin zamantakewa

Ya kamata a ce cewa mutuwa kudi tsakanin matasa har zuwa 10-30%. A tsawon lokaci da rayuwa shaida babu mafi 25-30 shekaru, mai rikodin na tsawon rai a bauta - shekara arba'in da biyar. Kamar yadda wani janar mulki, dabbobi ne m game da mambobi na jinsi. Amma a lokacin kiwo kakar iya faruwa tsakanin maza. Wani lokaci adult maza kai farmaki da matasa, yawanci namiji. Iyakacin duniya bears iya asali da launin ruwan kasa. A sakamakon haka ne m (haihuwa) zuriya - iyakacin duniya grizzly.

A matsayi na yawan jama'a da kuma tattalin arziki da daraja

A iyakacin duniya bear da aka jera a cikin Red Littãfi na Rasha Federation matsayin rare jinsuna. Saboda da high mace-mace da matasa dabbobi da kuma jinkirin da haifuwa na wannan dabba ta zama sauki isa m. Amma duk da wannan, da yawan yanzu dauke gwada da barga, ko da kara a wasu hanya. A Inuit farauta iyakacin duniya bears don samar da nama da boyewa. A Rasha ta dakatar da farauta dabbobi tun 1956. A wasu ƙasashe (Greenland, Kanada da kuma Amurka) hakar na iyakacin duniya bear yana da iyaka. A Rasha a yau, akwai game da 5-7 dubu mutane. A wannan harbi da mafarauci ne game 150-200 bears a cikin shekara.