UMary Allen
intshayelelo
Ubukumkani bezilwanyana likhaya kwiintlobo ezininzi zeentlobo ezineempawu kunye neempawu ezizodwa. Olunye uphawu olubalaseleyo lwezilwanyana yimpumlo yazo, edlala indima ebalulekileyo ekusindeni kwazo. Nangona ezinye izilwanyana zineempumlo ezinde nezibalaseleyo, ezinye zineempumlo ezincinci. Kweli nqaku, siza kuhlola ukuba sesiphi isilwanyana esinempumlo incinane ehlabathini nendlela esiyisebenzisa ngayo ukuze siphile.
Ukubaluleka kwempumlo kwizilwanyana
Impumlo lilungu leemvakalelo ezibalulekileyo zezilwanyana. Kubanceda babone amavumba, nto leyo ebalulekileyo ekufumaneni ukutya, ukuphepha amarhamncwa, nokuchonga amaqabane anokuba ngamaqabane. Kwakhona impumlo inendima ekuphefumleni, nto leyo eyenza izilwanyana zikwazi ukuphefumla ioksijini zize zikhuphe ikharbon diokside. Kwezinye iintlobo, impumlo ikwasetyenziselwa ukunxibelelana, njengakwimeko yeendlovu kunye nemiboko yazo efana nexilongo.
Eyona mpumlo incinci emhlabeni
Isilwanyana esinempumlo encinci yehlabathi yi-Etruscan shrew (Suncus etruscus). Esi silwanyana sanyisayo sincinane sifumaneka kwiindawo zaseYurophu, eAsia, nakuMntla Afrika yaye saziwa ngobuncinane nangempumlo yaso.
Inkcazo ngempumlo encinci yehlabathi
Impumlo ye-Etruscan shrew incinci kangangokuba ayibonakali. Ilinganisa kuphela iimilimitha ezimbalwa ubude kwaye imalunga nobukhulu bentloko yephini. Nangona incinci, impumlo yeshrew isebenza ngokumangalisayo kwaye idlala indima ebalulekileyo ekusindeni kwayo.
Iimpawu zesilwanyana
I-Etruscan shrew sesona silwanyana sanyisayo sincinane emhlabeni, sinobunzima obusisi-1.8 kuphela seegram. Inedyasi emdaka-ngwevu kunye nempumlo etsolo, ebonakala kancinci ngenxa yobuncinci bayo. I-shrew inezinga eliphezulu le-metabolic kwaye kufuneka itye rhoqo kwiiyure ezimbalwa ukugcina amanqanaba ayo amandla.
Indawo yokuhlala yesilwanyana
I-Etruscan shrew ifumaneka kwiindawo ezahlukeneyo zokuhlala, kuquka amahlathi, amathafa engca kunye nemigxobhozo. Ikhetha indawo ezinohlaza oluxineneyo kunye nentaphane yezinambuzane ezitya kuzo.
Ukutya kwesilwanyana
I-Etruscan shrew sisitshabalalisi kwaye itya iindidi zezinambuzane ezincinci, eziquka ooqongqothwane, iimbovane kunye nezigcawu. Izinga layo eliphezulu lemetabolism lithetha ukuba kufuneka litye isixa esikhulu sokutya xa lithelekiswa nobungakanani bayo ukuze liphile.
Iimpawu ezizodwa zesilwanyana
Ukongeza kubukhulu bayo obuncinci kunye neempumlo, i-Etruscan shrew iyaziwa ngokukwazi kwayo ukuhamba ngokukhawuleza kunye nokuhamba kubumnyama obupheleleyo. Inamehlo amakhulu xa kuthelekiswa nobukhulu bayo, evumela ukuba ibone kakuhle kwiimeko zokukhanya okuphantsi.
Indlela isilwanyana esiyisebenzisa ngayo impumlo yaso
Impumlo encinci ye-Etruscan shrew inobuchule obumangalisayo ekubhaqeni ivumba. Isebenzisa obu buchule bokufumana ixhoba, ukunqanda amarhamncwa, nokuchonga amaqabane anokuba ngamaqabane. Ivumba leshrew libukhali kangangokuba liyakwazi ukuva ivumba lexhoba ukuya kutsho kumgama oziimitha ezili-15.
Ukuthelekisa neempumlo zezinye izilwanyana
Xa ithelekiswa nezinye izilwanyana, impumlo ye-Etruscan shrew incinane ngendlela emangalisayo. Umzekelo, umboko wendlovu unokukhula ube ziimitha ezi-2 ubude, ngelixa impumlo yenja inokuba ziisentimitha ezininzi ubude. Nangona incinci, impumlo yeshrew isebenza ngokumangalisayo kwaye idlala indima ebalulekileyo ekusindeni kwayo.
isiphelo
I-Etruscan shrew sisilwanyana esinomdla esineseti yeempawu ezizodwa, kuquka neyona impumlo incinane emhlabeni. Nangona incinci, impumlo yeshrew isebenza ngokumangalisayo kwaye idlala indima ebalulekileyo ekusindeni kwayo. Uphando olongezelelekileyo ngesi silwanyana sanyisayo sincinane singasinceda ukuba siyiqonde ngcono indima yempumlo kwizilwanyana nokubaluleka kwayo ekuphileni kwazo.
Olunye uphando olunokwenzeka
Uphando lwexesha elizayo kwi-Etruscan shrew lunokuphonononga imfuzo emva kwempumlo yayo encinci kunye nendlela eyavela ngayo ngokuhamba kwexesha. Izazinzulu zisenokufunda ngokuva ivumba leshrew ngokweenkcukacha ezingakumbi, kuquka indlela eliwabona ngayo amavumba ahlukeneyo nendlela obu buchule buyinceda ngayo ikwazi ukuphila endle. Ukongeza, abaphandi banokuphanda indlela yokuziphatha kwe-shrew kunye nentsebenziswano yentlalo ukuze baqonde ngcono indima yayo kwi-ecosystem.