Kuzivisa iyo 2023 Boyd Lyon Scholar

Gore rega rega, iyo Boyd Lyon Gungwa Turtle Fund inotambira mudzidzi wemarine biology ane tsvakiridzo yakanangana nekamba dzegungwa. Muhwina wegore rino ndiRobert Gammariello.

Verenga pfupiso yetsvakiridzo yake pazasi:

Mhuka dzeturtle dzemugungwa dzinowana gungwa mushure mekubuda mudendere radzo nekufamba dzichienda kumwenje pedyo nechadenga, uye ruvara rwakareruka rwakaratidzwa kuti rwupe mhinduro dzakasiyana, nechiedza chitsvuku chinokwezva tumbaru shoma pane chiedza cheblue. Zvisinei, zvidzidzo izvi zvakangoitwa pane rimwe boka rakasarudzwa remhando dzegungwa dzegungwa (kunyanya magreens uye loggerheads). 

Hawksbill yegungwa turtles (Eretmochelys imbricata) hazvina kuedzwa kune chero zvido zvakadaro uye, tichifunga kuti hawksbills dendere pasi pezvinomera uko kunenge kwakasviba, munhu angatarisira zvavanofarira uye kunzwisiswa kwechiedza kuve kwakasiyana nemamwe marudzi. Izvi zvine maitiro ekushandisa turtle-yakachengeteka mwenje, sezvo chii chakachengeteka kuvhenekera kwegirinhi uye loggerheads kungave kusiri kwakachengeteka mwenje kune hawksbills. 

Chirongwa changu chine zvinangwa zviviri:

1. kuona chikumbaridzo chekuonekwa (chiedza chakasimba) chinopa mhinduro yephototactic kubva kune hawksbill hatchlings kumativi ekuona spectrum, uye
2. kuona kana ma hawksbills achiratidza zvakangofananawo zvemawavelength mapfupi (blue) echiedza zvichienzaniswa neakareba mawavelengths (matsvuku) echiedza.

Maitiro ezvinangwa zvese izvi zvakafanana: hatchling hawksbill inoiswa muY-maze, uye mushure menguva yeacclimation, inobvumidzwa kutenderera mukati me maze. Pachinangwa chekutanga, vana vanochechenyeswa vanounzwa nechiedza kumucheto kwerumwe ruoko uye rima kune rumwe rutivi. Kana kacheche kacho kakakwanisa kuona chiedza ngaiende kwairi. Tinodzikisira kusimba mumiedzo inotevera nenzira yehuchenjeri kusvika twana twusingachaendi kuchiedza ichocho. Hukoshi hwakadzikira hunofamba nekacheche kacho ndiko kuona kweruvara rwechiedza. Isu tinozodzokorora maitiro aya kune akawanda mavara pane ese spectrum. 

Pachinangwa chechipiri, tinopa vana vanochochonya nemavara maviri akasiyana emwenje pazvikumbaridzo izvi, kuti titarise zvaunofarira zvichienderana newavelength. Isu tinozopawo vana vanochechenyeswa nemwenje dzvuku-inochinjika pairi kukosha kwechikumbaridzo kuti tione kana kusimba kuri iko kuri kutyaira mukutarisa, pane ruvara.

Kubatsira kukuru kwetsvagiridzo iyi ndeyekuti inogona kushandiswa kuzivisa turtle-yakachengeteka yekuvhenekesa maitiro ehawksbill nesting beach.