Izilwanyana ezizifihla

Umxholo

• Kwenzeka ntoni emzimbeni wesilwanyana?
• Imizekelo yezilwanyana ezifukama
• Iindidi zezilwanyana ezifukama kakhulu

Inkqubo ye-ukuzimela Yinkqubo apho ezinye izilwanyana zinciphisa inkcitho yazo yamandla ngexesha lonyaka, kuba zihlala zikwimo yehypothermia iinyanga ezimbalwa. Umzekelo: ibhere, ilulwane, icikilishe.

Inkqubo yokubanda (i-hibernation) ivela enkosi kubuchule bezinye izilwanyana zokuziqhelanisa nendalo. Ukwehla okukhulu kweqondo lobushushu kubangela ukunqongophala kokutya (amasimi anokugqunywa ngumkhenkce nekhephu), kwaye anokubulala. Ukukwazi ukulala ebusuku kwavela ekuphenduleni obu bunzima bugqithisileyo.

Kwenzeka ntoni emzimbeni wesilwanyana?

Izilwanyana zinemizimba yazo elungiselelwe inkqubo yobusika, kunye neeveki ezininzi ngaphambi kokuba iqale ukuyilwa kwedipozithi enamafutha oko kuyakuvumela ukumelana ngelo xesha. Ukongeza, kwelo xesha langaphambili izilwanyana zilungisa ngononophelo indawo yokuhlala apho ziya kuchitha khona ezo nyanga.

Ke, xa iqondo lobushushu lisihla liye kufikelela kwinqanaba elingaphantsi kwelezantsi, Ukulala kwenzeka apho isilwanyana sinokubonakala sifile. Ngamanye amaxesha izilwanyana zithatha imilo ethile ukuzikhusela ngcono kwingqele, njengaleyo yebhola.

I-Physiologically, i-hibernation iqulethe ukufunyanwa kobume bokulala okanye ubuthongo basebusika, obuneziphumo eziphambili emzimbeni ukwehla kwenqanaba lentliziyo, izinga lentliziyo linokuncitshiswa ukuya kuthi ga kwiipesenti ezingama-80, ngama-50% izinga lokuphefumla nakumaqondo amane okanye amahlanu kubushushu. Isilwanyana siyeke ukwenza ezinye izinto kwinqanaba laso eliqhelekileyo elibalulekileyo, njengokutya, ukusela, ukuzikhusela okanye ukuchama.

Ngexesha lokulala, Zonke iintlobo zinomthambo vuka kunye nentshukumo apho ubushushu bomzimba bukhula khona, kufuna inkcitho yamandla engaqhelekanga kwixesha lokulala, nangamaxesha apho kuchithwa amandla ngakumbi.

Xa kufika intwasahlobo, ezi zilwanyana zibuyela kubushushu obuqhelekileyo bomzimba kwaye zibuyele kubomi obuqhelekileyo, ngokubanzi zinobunzima obunamandla bokunciphisa umzimba. Ngokubanzi lo mzuzu ungqamana nokuqala kwexesha lokukhwelana.

Imizekelo yezilwanyana ezifukama

Iindidi zezilwanyana ezifukama kakhulu

Ayizizo zonke izilwanyana ezifihla ubusika, kodwa kuphela ezo ziqhele ukuhlala kwindawo enemozulu epholileyo, kanye apho ixesha elibandayo lidala ukungalingani okunamandla.

Umahluko uhlala wenziwa phakathi kwe-hibernation ye:

• Izilwanyana ezinegazi elibandayo (zihlala izilwanyana ezincinci ezinjengezinambuzane, iinkumba, iimopane okanye iintlanzi, ezinendlela ethile yokwamkela iifom ezizivumela ukuba zifikelele kumaqondo obushushu aphezulu);
• Izilwanyana ezinegazi elifudumeleyo (ezona zichaphazeleka kakhulu ziimeko zobushushu obuphantsi, phakathi kwazo kukho izilwanyana ezalala zodwa, izilwanyana ezinobungozi kunye noonomatse abanye).

• Kananjalo: Izilwanyana ezinegazi elishushu nelibandayo

Ingakukhonza:

• Imizekelo yezilwanyana ezirhubuluzayo
• Imizekelo yokuFuduka kwezilwanyana
• Imizekelo yezilwanyana zasekhaya