Me yasa beyar ke bacci a lokacin hunturu

Pin
Send
Share
Send

Yi la'akari da yadda mutane ke shiryawa don watanni masu sanyi. Sutura, huluna, safar hannu da takalmi suna sa ku dumi. Miyan zafi da cakulan suna kuzari. Masu zafi suna dumama. Duk waɗannan matakan suna kare mutane a cikin yanayi mai tsananin sanyi.

Koyaya, dabbobi ba su da waɗannan zaɓuɓɓukan. Wasu daga cikinsu ba za su tsira da sanyi da tsananin damuna ba. Sabili da haka, yanayi ya ƙirƙira wani tsari da ake kira hibernation. Tashin hankali lokaci ne na dogon lokaci mai sanyi a cikin yanayin sanyi. Don shiryawa, dabbobin hunturu suna cin abinci mai yawa a cikin kaka don tsira daga sanyi da haɗari na damuna. Canjin yanayin su, ko kuma adadin da suke kona adadin kuzari, shima yana jinkirin kiyaye makamashi.

Da zarar sun karantu game da beyar, hakanan suke kara samun kaunar wadannan halittu masu ban mamaki.

Me yasa bears hibernate?

A gidan ajiye namun daji, zaku iya kallon beyar yayin da suke cin abincinsu ko ciyar da dumi na yini a ƙarƙashin itace. Amma menene bears ke yi a lokacin watanni na hunturu? Me yasa beyar take bacci a lokacin sanyi? Karanta a ƙasa ka sha mamaki!

Bears suna haihuwa a lokacin rashin nutsuwa (a tsakiyar hunturu), ciyar da yara a rami har zuwa bazara.

Ko da beyar ta dauki ciki, wannan ba yana nufin cewa zata sami 'yar beran ba a wannan lokacin hunturu. Bears suna haduwa a lokacin bazara, bayan wani kankanin lokaci na ci gaban tayi, mace zata fara "jinkirin daukar ciki", amfrayo din zai daina cigaba har tsawon watanni. Idan uwa tana da isasshen makamashi (mai) don tsira daga hunturu tare da jariri, amfrayo zai ci gaba da haɓaka. Idan uwar da ke ciki ba ta da isasshen kuzarin da ke ciki, amfrayo yana "daskarewa" kuma ba za ta haihu a wannan shekara ba. Wannan karbuwa ya tabbatar da cewa beran mata ya rayu tsawon lokacin hunturu ba tare da 'yayanta sun mutu ba.

Abubuwan ɓoye na bears

Bears ba ya hibernate kamar rodents. Yanayin zafin jikin beyar ya sauka da 7-8 ° C. kawai bugun bugun yana raguwa daga 50 zuwa kusan 10 a minti daya. A lokacin bacci, bears na kona kusan adadin kuzari 4,000 a kowace rana, shi ya sa jikin dabba ke bukatar samun kitse mai yawa (mai) kafin masu beyar su yi bacci (wani baligi ya girma, jikinsa ya kunshi sama da adadin kuzari miliyan na kuzari kafin ya zama mai nutsuwa).

Bears hibernate ba saboda sanyi ba, amma saboda rashin abinci a lokacin watannin hunturu. Bears ba sa zuwa bayan gida yayin bacci. Madadin haka, suna canza fitsari da najasa zuwa furotin. Dabbobi suna rasa kashi 25-40% na nauyinsu yayin bacci, suna ƙona kitse don zafi jikin.

Takallan da ke kan takalmin beyar suna ta ɓarna yayin ɓoye, yana ba da damar girma da sabon nama.

Lokacin da beyar ta fito daga rashin bacci, suna cikin wani yanayi na '' tafiya cikin nutsuwa '' a wannan lokacin na tsawon makonni. Bears ya zama maye ko wawa har sai jikinsu ya dawo daidai.

Pin
Send
Share
Send

Kalli bidiyon: Garkuwar cindo yafadi A jahar kebbi Shagon Bahagon Balan Gads yabuge shi yau AsabarFebruary16, 2020 (Nuwamba 2024).