I-cosmos yama-otters olwandle: iphrofayili yebhayoloji
La ulwandle otter (I-Enhydra lutris) ingeyomndeni we-mustelid, ehlobene nezilwane ezihlukahlukene njengama-weasel nama-mink. Ama-otter amakhulu kunawo wonke emhlabeni futhi yiwo kuphela achitha ingxenye enkulu yokuphila kwawo emanzini. Ama-sea otter anoboya obuminyene ngendlela emangalisayo obuwavikela emakhazeni, futhi ingenye yezimfihlo zokuphila kwawo olwandle olubandayo.
Ama-sea otter adume ngamandla awo okusebenzisa amathuluzi, ukuziphatha okungajwayelekile phakathi kwezilwane ezincelisayo futhi okungavamile phakathi kwalezo ezihlala olwandle. Ngokuvamile basebenzisa amatshe noma amagobolondo ukuze bavule i-shellfish abadla ngayo, ebonisa ubuhlakani obumangalisayo nobuciko.
Izimfihlo zomlando wayo wokuziphendukela kwemvelo
Ama-sea otters avela kokhokho bawo basemhlabeni eminyakeni eyizigidi ezi-5 edlule. Zaziyizilwane ezincelisayo zokugcina zasolwandle ukwenza lolu shintsho, zizivumelanisa kahle nendawo yazo entsha. Ngokweminye imibono, i-sea otter yake yabalelwa emakhulwini ezinkulungwane, kodwa ukuzingela ngokungakhethi phakathi nekhulu le-XNUMX nele-XNUMX kwacishe kwawaqothula.
Kusukela ngaleso sikhathi, ngenxa yemizamo eminingi yokongiwa kwemvelo kanye nokwanda okuhamba kancane kodwa okuqhubekayo kwenani labantu, ama-sea otter akwazile ukuphila futhi azokwazi ukuqhubeka nokudlala indima yawo ebalulekile esimisweni sezinto eziphilayo zasolwandle.
Ukudla okuhlaba umxhwele kwama-sea otters
Bathi yonke into ingena ngesisu, kanti kuma-sea otters, lokhu kuyiqiniso impela. Ingabe abadlayo, ekwazi ukudla kufika ku-25% wesisindo sazo ekudleni usuku ngalunye. Ukudla kwabo kuyahlukahluka futhi kufaka phakathi izinhlobo ezingaphezu kwe-100 zezilwane ezingenamgogodla zasolwandle.
- Ama-urchins olwandle
- izimbaza
- Izinkalankala
- izintwala zasolwandle
- Iminenke
Ngaphezu kokuba nesifiso sokudla esinganeliseki, ama-sea otter nawo adlala indima ebalulekile ku-ecosystem yawo ngokulawula ama-sea urchin futhi avimbele ukugawulwa kwe-kelp.
Ukuzijwayeza okukhethekile kokuphila ngaphansi kwamanzi
Ama-sea otters angokoqobo ochwepheshe bokujwayela. Imizimba yabo yakhelwe ukuphila emanzini; Zinemilenze yangemuva emikhulu, enolwelwe ukuze zibhukude kalula, futhi zinamandla okuvala izindlebe nekhala ngenkathi zicwila emanzini.
Esinye sezici eziphawuleka kakhulu zama-sea otter uboya bawo. Ngezinwele ezifika esigidini iyintshi yesikwele, iwuboya obuminyene kakhulu embusweni wezilwane. Lobu boya obuminyene buhlinzeka ngokuhlukanisa okubalulekile, njengoba ama-sea otters awanalo ungqimba lwamafutha okuwagcina efudumele njengezilwane eziningi ezincelisayo zasolwandle.
Ukuziphatha komphakathi okuyinkimbinkimbi kwama-sea otters
Ama-sea otter ayizilwane ezihlala nabantu. Abesifazane nabancane bavame ukwakha amaqembu abizwa ngokuthi 'ama-flotillas' noma 'amaqembu ahambayo', azibophe ndawonye nokhula lwasolwandle ukuze angahlukani ngenkathi elele. Abesilisa nabo bakha amaqembu, kodwa amancane ngosayizi.
Zineqoqo elibanzi lamaphimbo, kusukela kumakhwelo kuye ekuklabalaleni, asetshenziselwa ukuxhumana noma ukuveza imizwa nemizwelo ehlukahlukene. Lokhu kuhlalisana okuyinkimbinkimbi kugqamisa ubunkimbinkimbi balezi zidalwa zasolwandle ezibukekayo.