Idada eliyisigaxa (Biziura lobata) elomndeni wedada, i-oda le-Anseriformes.
Izimpawu zangaphandle zedada eliyisigaxa
Idada lelobe linobukhulu obusuka kumasentimitha angama-55 kuye kwangama-66. Isisindo: 1.8 - 3.1 kg.
Idada eliyisigaxa liyidada elitshiyeneyo elimangalisayo, elinomzimba omkhulu namaphiko amafushane, okuyinika ukubukeka okuhluke kakhulu. Leli dada likhulu kakhulu futhi cishe njalo lintanta emanzini. Indiza ngokungathandi futhi kuyaqabukela ivela ezweni.
Izimpaphe zesilisa zinombala onsundu onsundu, zinekhola elimnyama nesigqoko. Zonke izimpaphe zokumboza ngemuva nasezinhlangothini zine-suede eningi kanye nama-vermiculées amhlophe. Isifuba nesisu kunombala onsundu ngokumpunga. Izimpaphe zomsila zimnyama. Izimpiko zinsundu ngokumpunga ngaphandle kwamabala. Izindwangu ezingaphansi zimpunga okhanyayo ngombala. Abanye abantu bane-spurs ezinhlokweni zamaphiko abo. Uqhwaku lukhulu futhi lubanzi ezansi, lapho kulenga khona ukukhula okuminyene. Ukukhula okufana ne-caroncule, ubukhulu bayo buyehluka kuye ngobudala benyoni. Ama-paws anempunga emnyama, imilenze ivutha kakhulu. U-Iris onsundu ngokumnyama.
Kwabesifazane, ukukhula emlonyeni kuncane futhi kubukeka kukuncane kunokweduna. Izimpaphe zinombala ophaphathekile, ngomthelela wokugqokwa kwezimpaphe. Izinyoni ezisencane zinemibala yezimpaphe, njengezinsikazi ezindala. Kepha ingxenye yokugcina ye-mandible engezansi incane futhi iphuzi.
Izindawo zokuhlala zamadada e-Lobe
Amadada anezinhlamvu akhetha amaxhaphozi namachibi anamanzi ahlanzekile, ikakhulukazi uma ugu lwawo lugcwele ukuqongelela komhlanga. Izinyoni zingabonakala nasemagatsheni omisa imifula nasemabhange ezinqolobane ezahlukahlukene, kufaka phakathi lezo ezibaluleke kakhulu kwezomnotho.
Ngaphandle kwenkathi yokuzalanisa, amadada amadala anama-lobed ahlangana emizimbeni yamanzi ajulile njengamachibi kasawoti, amachibi, namachibi endle. Ngalesi sikhathi sonyaka, bavakashela nezindawo zokugcina amanzi ezigcina amanzi okunisela, iziziba zemifula namabhange anezitshalo. Kwezinye izimo, amadada anama-lobed ahamba amabanga amade ukusuka ogwini.
Izici zokuziphatha kwedada eligwedlwayo
Amadada ama-Lobe akuzona izinyoni ezijwayelene kakhulu. Ngaphandle kokubheka isikhathi sempilo yabo, bahlala njalo ngamaqembu amancane. Ngemuva kokwakha izidleke, izinyoni zihlangana ezindaweni ezincane emanzini echibi kanye nezinye izinhlobo zedada, ikakhulukazi nedada lase-Australia. Ngesikhathi sokuzala, amadada angahlali noma ahlangane ahlangana ngamaqembu amancane.
Amadada ama-Lobe athola ukudla uma ecwiliswe ngokuphelele emanzini, ngaphandle komzamo.
Akuvamile ukuthi bahambe emhlabeni, lapho bezizwa bengakhululekile khona. Abesilisa abadala yizinyoni zendawo, baxosha abancintisana nabo endaweni ekhethiwe ngokukhala okukhulu. Ngaphezu kwalokho, abesilisa babiza abesifazane ngokukhala kwabo okuvala izindlebe. Emvelweni wabo wemvelo, izinkomba zezwi kwesinye isikhathi zifana nokugquma okukhulu noma ukukhala.
Ekuthunjweni, abesilisa nabo benza umsindo ngezidladla zabo. Abesifazane bayizinyoni ezingakhulumi kangako, bayanikela uma kwenzeka inhlekelele, bathintane ne-grunt ephansi. Amachwane abizwa nge-tender trill. Amadada amancane axhumana nezimpawu ezinethoni yokubhonga. Izingcingo zosizi zinjengezwi lowesifazane.
Ngokungafani namadada anamaqhubu ahlala ezingxenyeni ezisentshonalanga yebanga, abesilisa abasezifundeni ezisempumalanga abahluphi.
Amadada ama-Lobe awavamile ukundiza, kodwa kahle kakhulu. Ukuze zikhuphukele emoyeni, zidinga umfutho owengeziwe ngendlela yokugijima ibanga elide, ngemuva kwalokho izinyoni zisuka ngaphezu kwamanzi. Umqansa uyaxaka ngemuva kwesilayidi esinomsindo ebusweni bamanzi. Yize kunesifiso sokundiza njalo, amadada okugwedla kwesinye isikhathi ahamba amabanga amade. Nezinyoni ezincane zifudukela kude kakhulu eningizimu. Izindiza ezinkulu zenziwa ebusuku.
Ukudla kwepaddle
Amadada ama-Lobe adla ikakhulu ama-invertebrates. Badla izinambuzane, izibungu, neminenke. Bazingela amaxoxo, ama-crustaceans kanye nezicabucabu. Zidla nezinhlanzi ezincane. Izitshalo zikhona ekudleni kwazo, ikakhulukazi imbewu nezithelo.
Ukuhlaziywa kokudla kwezinyoni eziningi eNew South Wales kunikeze imiphumela elandelayo:
- Izilwane ezingama-30% nezinto eziphilayo,
- Izitshalo ezingama-70%, njengembotyi, utshani nama-rosace, okuphikisana kancane nedatha ebhalwe ngenhla.
Ukuzalisa idada le-Lobe nokuzala
Isikhathi sokwakha amadada anama-lobed siqala ikakhulu ngoSepthemba / Okthoba, kepha ukuzala kungabambezeleka ngokuya ngezinga lamanzi. Ama-clutches empeleni abonwa kusukela ngoJuni kuya kuDisemba. Kwezinye izifunda, abesifazane abangaphezu kwamashumi amabili babonwa kumadada anama-lobed owesilisa ngamunye. Ngaphakathi kwale "harem" enobudlelwano obuxegayo buyasungulwa, ukukhwelana ngokungahambisani kwenzeka, futhi akukho bhangqa baphakade.
Emphakathini onjalo weqembu, inzuzo ihlala emadodeni aqinile, akhombisa indlela aziphatha ngayo. Ukuncintisana kwesinye isikhathi kufika ekuqothulweni komzimba kwabesilisa ababuthakathaka ngisho namachwane.
Lesi sidleke simise okwendishi futhi sifihlwe ezimileni eziminyene.
Yakhiwe ngezinto zokutshala futhi igcwaliswe ngotshani obunsundu ngokumpunga. Isakhiwo sikhulu kakhulu, esisendaweni ephakeme ngaphezu kwamanzi, emihlangeni noma ezihlahleni ezincane ezifana ne-typhas, ironwood noma i-melaleucas.
Insikazi ifukamela ibamba yodwa izinsuku ezingama-24. Amaqanda anombala oluhlaza okotshani ngombala. Amachwane abonakala efakwe mnyama phansi kakhulu futhi amhlophe ngaphansi. Amadada anamachwane amancane akwazi ukuzala ngonyaka. Isikhathi sokuphila ekuthunjweni singafika eminyakeni engama-23.
Ukusabalala kwedada
Idada eliyisigaxa livame kakhulu e-Australia. Kutholakala kuphela eningizimu-mpumalanga naseningizimu-ntshonalanga yezwekazi, kanye naseTasmania. Ucwaningo lwakamuva lwe-DNA kubantu abahlukene, kanye nokuziphatha okuhlukile kokukhwelana, kuqinisekisa ukuthi kukhona ama-subspecies ama-2. Izinhlobo ezingaphansi ezaziwa ngokusemthethweni:
- B. l. I-lobata inabela eningizimu-ntshonalanga ye-Australia.
- B. menziesi itholakala eningizimu-mpumalanga ye-Australia (maphakathi), eSouth Australia, ngasempumalanga yeQueensland, naseningizimu eVictoria, kanye naseTasmania.
Isimo sokulondolozwa kwedada eligwedlwayo
Idada eliyisigaxa akusona isilwane esisengozini yokuqothulwa. Ukusatshalaliswa akulingani kakhulu, kepha endaweni le nhlobo ikhona ngobuningi emadamini aseMurray naseDarling. Akukho mininingwane ngenani lezwekazi ledada eliyisigaxa, kepha ngokusobala kukhona ukwehla okuncane kwesibalo sabantu engxenyeni eseningizimu-mpumalanga yebanga, lapho kwethulwa khona amanzi emigodini yezindawo ezingamaxhaphozi. Esikhathini esizayo, izenzo ezinjalo ziwusongo olukhulu endaweni yokuhlala yedada eliboshwe.
