Iintaka Precocial: iimpawu zophuhliso kunye nokusebenza

Kukho ukuhlelwa ezahlukeneyo zeentaka, ezo zisekelwe neempawu ezahlukeneyo. Enye yezi liqondo yophuhliso amantshontsho kubelekwa ingakumbi ukukhula ngakumbi. Ngokwale systematization njengenqobo bahlule amaqela amabini amakhulu: kwamathole intaka, imizekelo apho zinikwe kweli nqaku, kunye yokwakha. Makhe sihlolisise ngokweenkcukacha.

Yokwakha namantshontsho neentaka: umahluko ophambili

Onke amalungu ale klasi zizalana ngokubekwa amaqanda, hatching emva kwabo. Emva kwexesha elithile amaqanda aqandusele amantshontsho. iintaka Precocial luphawulwa yokuba namantshontsho usana phantse kwangoko bakulungele zokuphila ezizimeleyo. umzimba mantshontsho zifakwa ngokupheleleyo phantsi. Ndiziva ndonwabile kwaye ikhusela umzimba abaselula iimeko engentle yokusingqongileyo, ingakumbi utshintsho lobushushu ngesiquphe yonke imihla. Oku kuvumela ezi ntaka ukuba ashiye indlwane ngoko nangoko kwaye musa ngumkhenkce.

Amaqanda ziyaphuma iintaka nzalandini kuyo ayifani mikhulu ngobukhulu kwaye ziqulathe unikezelo enkulu kwezondlo. Umbungu usebenzisa ukuba ukuphumeza ngaphezulu iqokobhe kuphuhliso kakhulu kwaye phantse nangoko emva hatching ukuya zokuphila ezizimeleyo. Hatching amaqanda iimazi akhawunti ixesha elide - ngamanye amaxesha elingaphezu kweeveki ezintathu. Ngokukhawuleza emva hatching, amantshontsho bayakwazi ukubona ukuva kakuhle. inkqubo yabo imisipha lisebenza ngokupheleleyo, ngoko zihamba ngokuzimeleyo. Oku kubaluleke kakhulu ukukhusela ezidla engalindelekanga. Emva kweeyure ezimbalwa abantwana sele uyazi ukuba usebenzise indlela nkqi, kwaye impukane kancinane. Kwaye emva kokuba isibini iiveki nga ngokuzimeleyo ukufumana ukutya.

Xa iintaka yokwakha ukuqanduselwa amantshontsho Akunanto ngokupheleleyo. Bona bazalwa kunye nesikhumba ebalelelwe lilanga, zanjengeentsiba zamaxhalanga, amehlo neendlebe zilahlekile. Imizekelo iintaka yokwakha na oongqatyana, kwagcwala, cuckoos, amahobe kunye nabanye. Emva kokuzalwa abanako, ukuhlala ngeenyawo zakhe, thermoregulation ukuba angekayazi eyona nto. Ngenxa yezi zizathu, le amantshontsho ixesha elithile bahlale yentaka, abadinga lwabazali onenkathalo ukutya kunye nobushushu.

iintaka Poluvyvodkovye

Kukwakho iqela eliphakathi, amalungu ukudibanisa iimpawu zombini iintaka yokwakha kunye uqumbile. Umzekelo, izikhova amantshontsho bazalwa eyimfama kwaye yaphuhliswa phantsi kweliso labazali, kodwa sigqunywa ngokupheleleyo kunye nento ephakathi. Kodwa ke, ingabangaba ixesha elide kuhlala yentaka, nangona yokuba ukukhuhla namehlo avuleka, kunye inoboya.

yokuhlala

iintaka Precocial, ogama Abameleli kakhulu zahlukene, kukho zasemanzini okanye ubomi emhlabeni. Abayi ukwakha iindlwane zazo phezulu kwi derevyah.Ih ukwahlula ngokobukhulu enkulu kunye nobunzima enkulu. Ngoko ke, inkukhu ithuba lokuba enomoya kuqala lula ngcembe ngokupheleleyo opera. Zasemanzini ndawonye amantshontsho baqale kakuhle kuphuhliswa amaphiko, uninzi ixesha lokuzinikezela ukuyilwa izakhono yokuqubha.

Ngoku makhe sihlolisise khangela iminqongo ezingundoqo qela.

gruiformes

Ziintaka precocial ezi squad zonke iintlobo gruiformes. Bona lubonakala ngokuba intamo ende kunye kumlomo efanayo neenyawo. Ngenxa yobukho ephambuka kwi uqhoqhoqho, wenze izandi iimpawu, efana umbhobho. Njengoko kwamathole lawo, gruiformes ukwakha iindlwane emhlabeni. Le ntaka enkulu kangangoko, iimitha ezintandathu ukuphakama. Umda samaphiko azo akwazi ukufikelela iimitha ezimbini. Ezi ntlobo zixhaphakileyo beli qela zezi zingwevu, emathafeni kunye milenge jize.

zasemanzini

iintaka zasemanzini ndawonye amantshontsho (imizekelo - a nenkuku yamanzi, idada kunye mallard) ziphantsi umyalelo Anseriformes. osemqoka zazo zithwala bubukho umlomo banzi atshabalalisa. Ngaphakathi isabelo ayo aphezulu ibekwe amacwecwe horny asebenza ukuyicoca amasuntswana ukutya ngamanzi.

Esithi "ukubaleka" ikhona ngenxa zasemanzini. yonke Ingongoma kukuba xa befumana nobubovu oyile, ukuba siyithethe imfihlelo leyo eziqatywe iintsiba. Ngenxa yoko, kuba manzi. Zasemanzini ziyi- iintlobo ezibalulekileyo ekujoliswe, kuba ukudla okunesondlo okumnandi kunye namanqatha, nto leyo eye iipropati amayeza. Kufuneka athi malunga nento efudumeleyo kunye Lutho, ezisetyenziswa ukuba bazalise yokulala kunye kwimiqamelo, kunye nokuvelisa knitwear.

Ngoko ke, iintaka nzalandini zenza ngakumbi xa kuthelekiswa iziseko yaye nokubaluleka kwezoqoqosho kakhulu abantu.