Wadatacce
- Asalin Kodiak Bear
- Bayyanar da Anatomy na Alaskan Giant Bear
- Halayen Kodiak Bear
- Sake Haɓaka Kodiak Bear
- Matsayin kiyayewa na Kodiak bear
O kodiak bear (Ursus arctos middendorffi. Waɗannan dabbobi masu shayarwa sun yi fice don girman su da ƙarfin su na ban mamaki, kasancewa ɗaya daga cikin manyan dabbobi masu shayarwa a duniya, tare da polar bear.
Idan kuna son ƙarin sani game da wannan katon dabbobi masu shayarwa, muna gayyatar ku da ku ci gaba da karanta wannan takardar ta PeritoAnimal, inda za mu yi magana a kai. asali, abinci da haifuwa na Kodiak's Bear.
Source- Amurka
- Amurka
Asalin Kodiak Bear
Kamar yadda muka riga muka ambata, Kodiak Bear shine grizzly bear subspecies (Ursus arctos), wani irin iyali Ursidae wanda ke zaune a Eurasia da Arewacin Amurka kuma yana da fiye da 16 a halin yanzu da aka sani. Musamman, beyar Kodiak sune Kudancin Alaska da yankuna masu mahimmanci kamar Tsibirin Kodiak.
Asalin Kodiak Bear an bayyana shi a matsayin sabon nau'in na beyar ta masanin ilimin harajin Amurka kuma masanin dabbobi mai suna CH Merriam. Sunan kimiyya na farko shine Sunan mahaifi Ursus, mai suna bayan wani babban dan yankin Baltic mai suna Dr. A. Th. Von Middendorff. Bayan yearsan shekaru bayan haka, bayan cikakken binciken harajin kan gado, duk gemun grizzly da suka samo asali daga Arewacin Amurka an haɗa su a cikin nau'ikan guda: Ursus arctos.
Bugu da kari, bincike da yawa na kwayoyin halitta sun ba da damar gane cewa Kodiak bear yana da '' alaƙa ta asali '' ga grizzly bears na Amurka, gami da waɗanda ke zaune a cikin tsibirin Alaskan, da kuma gemun bears na Rasha. Duk da cewa babu wani cikakken bincike tukuna, saboda ƙananan bambancin kwayoyin halitta, An kiyasta beyar Kodiak an ware ta tsawon ƙarnuka da yawa (aƙalla tun lokacin ƙanƙara na ƙarshe, wanda ya faru kimanin shekaru 12,000 da suka gabata). Hakanan, har yanzu ba zai yiwu a gano raunin rigakafin rigakafi ko naƙasasshe na asali da aka samo daga rarrabuwar kawuna a cikin wannan nau'in ba.
Bayyanar da Anatomy na Alaskan Giant Bear
Kodiak Bear wata katuwar dabbar dabbobi ce, wacce za ta iya kaiwa tsayin tsayi a busasshen kusan mita 1.3. Bugu da ƙari, yana iya isa Mita 3 akan kafafu biyu, wato, lokacin da ya sami matsayin bipedal. Hakanan yana da mahimmanci don samun ƙarfi sosai, kasancewar kowa yana da nauyi ga mata masu nauyin kilo 200, yayin da maza ke kaiwa sama da 300 kg nauyi. An yi rikodin beyar namiji Kodiak mai nauyin kilogram 600 a cikin daji, kuma wani mutum da ake yi wa laƙabi da "Clyde", wanda ke zaune a Gidan Zoo na Dakota ta Arewa, ya kai fiye da kilogram 950.
Saboda munanan yanayin yanayin da yakamata ta fuskanta, shagunan Kodiak Bear 50% na nauyin jikin ku a mai, duk da haka, a cikin mata masu ciki, wannan ƙimar ta wuce kashi 60%, tunda suna buƙatar babban tanadin kuzari don tsira da shayar da zuriyarsu. Baya ga girman su, wani fasali mai ban sha'awa na Kodiak bears shine su m fur, Ya dace sosai da yanayin yanayin mazaunin sa. Dangane da launuka na sutura, berayen Kodiak galibi suna daga tabarau masu launin shuɗi da ruwan lemo zuwa launin ruwan kasa mai duhu. A cikin shekarun farko na rayuwa, kwiyakwiyi kan sanya abin da ake kira farin "zoben haihuwa" a wuyansu.
Waɗannan manyan berayen Alaskan suma suna da fasali babba, mai kaifi sosai kuma mai cirewa, masu mahimmanci don kwanakin farautar su kuma hakan yana taimaka musu wajen kare kai hare -hare ko yin yaƙi don ƙasa da sauran maza.
Halayen Kodiak Bear
Beod Kodiak kan ɗauke da salon kadaici a cikin mazauninsu, suna saduwa ne kawai a lokacin kiwo da kuma sabani na lokaci -lokaci kan ƙasa. Hakanan, saboda suna da ƙaramin yanki na ciyarwa, yayin da suke zuwa galibi zuwa yankuna tare da raƙuman ruwa na salmon, ya zama ruwan dare ganin ƙungiyoyin Beod Kodiak tare da rafukan Alaskan da Tsibirin Kodiak. An kiyasta cewa irin wannan "haƙuri na lokaci"na iya zama nau'in ɗabi'ar daidaitawa, saboda ta hanyar rage yaƙe -yaƙe don yanki a cikin waɗannan yanayi, bears na iya kula da ingantaccen abinci kuma, a sakamakon haka, kasancewa cikin koshin lafiya da ƙarfi don hayayyafa da ci gaba da yawan jama'a.
Da yake magana game da abinci, beyar Kodiak dabbobi ne masu yawan gaske waɗanda abincinsu ya haɗa da makiyaya, tushen da 'ya'yan itatuwa na Alaska, har ma Tekun Pacific da dabbobi masu shayarwa matsakaici da babba, kamar hatimi, muza da barewa. Hakanan zasu iya cinye algae da invertebrates waɗanda ke taruwa akan rairayin bakin teku bayan lokutan damuna. Tare da ci gaban ɗan adam a cikin mazaunin sa, galibi a Tsibirin Kodiak, wasu halaye na dama an lura a cikin wannan nau'ikan. Lokacin da abinci ya yi karanci, Kodiak bears da ke zaune kusa da birane ko garuruwa na iya kusanci cibiyoyin biranen don dawo da sharar abinci na ɗan adam.
Bears ba su dandana sahihiyar bacci kamar sauran dabbobin da ke bacci kamar marmot, shinge da squirrels. Ga waɗannan manyan dabbobi masu ƙanƙantar da kai, hibernation da kanta zai buƙaci kuzari mai yawa don daidaita yanayin zafin jikinsu tare da isowar bazara. Kamar yadda wannan farashin na rayuwa ba zai dawwama ga dabba ba, yana sanya koda rayuwarsa cikin haɗari, beyar Kodiak ba ta yin bacci, amma tana fuskantar wani nau'in baccin hunturu. Ko da yake sun kasance tsarin rayuwa mai kama da juna, lokacin baccin hunturu zafin jiki na bears yana raguwa kaɗan kaɗan, yana ba dabbar damar yin bacci na dogon lokaci a cikin kogonsa kuma yana adana kuzari mai yawa a lokacin hunturu.
Sake Haɓaka Kodiak Bear
Gabaɗaya, duk nau'ikan grizzly bear subspecies, gami da Kodiak bear, masu aure ɗaya ne kuma masu aminci ga abokan hulɗarsu. A cikin kowane lokacin balaga, kowane mutum yana samun abokin zama da ya saba, har sai ɗayansu ya mutu. Bugu da ƙari, yana yiwuwa yanayi da yawa su wuce ba tare da yin aure ba bayan mutuwar abokin zaman su na yau da kullun, har sai sun ji shirye su karɓi sabon abokin tarayya.
Lokacin kiwo na Kodiak bear yana faruwa tsakanin watan mayu da june, tare da isowar bazara a arewacin duniya. Bayan saduwa, ma'aurata kan zauna tare na 'yan makonni, suna amfani da damar hutawa da tattara abinci mai kyau. Koyaya, mata sun jinkirta dasawa, wanda ke nufin ƙwayayen ƙwai suna bin bangon mahaifa kuma suna haɓaka watanni da yawa bayan yin jima'i, yawanci a lokacin fall.
Kamar yawancin dabbobi masu shayarwa, berayen Kodiak dabbobi ne masu raye-raye, wanda ke nufin cewa hadi da ci gaban zuriya na faruwa a cikin mahaifa. Yawancin yara ana haife su a ƙarshen hunturu, a cikin watannin Janairu da Maris, a cikin rami guda ɗaya inda mahaifiyar su ke jin daɗin baccin ta na hunturu. Mace yawanci tana haihuwar jarirai 2 zuwa 4 a kowace haihuwa. An haife su da kusan gram 500 kuma za su zauna tare da iyayensu har zuwa shekaru ukuna rayuwa, ko da yake sun kai balaga ta jima'i ne kawai a shekara 5.
Beod Kodiak suna da yawan mace -mace na jarirai a cikin gandun dajin grizzly, wataƙila saboda yanayin muhallin mazauninsu da kuma halin ɗabi'ar maza ga zuriyarsu. Wannan shine ɗayan manyan abubuwan da ke hana haɓaka nau'in, da kuma farautar "wasanni".
Matsayin kiyayewa na Kodiak bear
Ganin rikitattun yanayin mazauninsa da matsayinta a cikin sarkar abinci, Kodiak bear ba shi da mafarautan halitta. Kamar yadda muka ambata, mazan wannan ƙungiyoyin da kansu na iya zama masu farautar zuriya saboda rigingimun ƙasa. Koyaya, ban da wannan ɗabi'ar, kawai abin da ke barazana ga rayuwar beyar Kodiak shine farauta da sare itatuwa. Doka ta kayyade farautar wasanni a yankin Alaskan. Sabili da haka, ƙirƙirar wuraren shakatawa na ƙasa ya zama mai mahimmanci don kiyaye yawancin nau'ikan asali, gami da kodiak bear, kamar yadda aka haramta farauta a wadannan wuraren da aka kare.