Simemezela i-Boyd Lyon Scholar yango-2023

Minyaka yonke, iBoyd Lyon Sea Turtle Fund isingatha umfundaze womfundi wesayensi yebhayoloji yasolwandle ocwaningo lwakhe lugxile ezimfudumeni zasolwandle. Ophumelele kulo nyaka nguRobert Gammariello.

Funda isifinyezo sakhe socwaningo ngezansi:

Amaphuphu ofudu lwasolwandle achanyuselwa athola ulwandle ngemva kokuphuma esidlekeni sawo ngokuya ekukhanyeni eduze komkhathizwe, futhi umbala okhanyayo uboniswe ukuze unikeze izimpendulo ezihlukene, ngokukhanya okubomvu okuheha izimfudu ezingaphansi kokukhanya okuluhlaza okwesibhakabhaka. Kodwa-ke, lezi zifundo zenziwe kuphela eqenjini elikhethiwe lezinhlobo zofudu lwasolwandle (ikakhulukazi eziluhlaza kanye nama-loggerheads). 

Izimfudu zasolwandle zikaHawksbill (I-Eretmochelys imbricata) azikahlolelwa noma yiziphi izintandokazi ezinjalo futhi, uma kucatshangelwa ukuthi isidleke sama-hawksbill ngaphansi kwezimila lapho kucatshangelwa ukuthi kumnyama khona, umuntu angalindela lokho abakuncamelayo nokuzwela ekukhanyeni ukuthi kuhluke kwezinye izinhlobo zezilwane. Lokhu kunemiphumela yokusebenzisa ukukhanya okuphephile kofudu, njengoba ukukhanya okuphephile kokuluhlaza nama-loggerheads kungase kungabi ukukhanya okuphephile kwama-hawksbill. 

Iphrojekthi yami inezinjongo ezimbili:

1. ukunquma umkhawulo wokutholwa (ukukhanya kokukhanya) okunikeza impendulo ye-phototactic evela kuma-hawksbill hatchlings kuwo wonke i-spectrum ebonakalayo, kanye
2. ukucacisa ukuthi ingabe ama-hawksbill abonisa izintandokazi ezifanayo zamaza amaza amafushane (oluhlaza okwesibhakabhaka) okukhanya uma kuqhathaniswa namaza amaza amade (okubomvu) okukhanya.

Inqubo yazo zombili lezi zinhloso iyafana: i-hatchling hawksbill ifakwa ku-Y-maze, futhi ngemva kwesikhathi sokujwayela, ivunyelwe ukuzungeza ngaphakathi kwe-maze. Ngenhloso yokuqala, amantshontsho achanyuselwa anikezwa ukukhanya ekugcineni kwengalo eyodwa nobumnyama ngakolunye uhlangothi. Uma uchanyuselwa lukwazi ukubona ukukhanya kufanele luye ngakulo. Sehlisa ukuqina ezivivinyweni ezilandelayo ngendlela ehlakaniphile kuze kube yilapho amaphuphu echanyuselwa engasasuki ngakulokho kukhanya. Inani eliphansi kakhulu i-hatchling eliya kulo umkhawulo walo wokuthola lowo mbala wokukhanya. Bese siphinda le nqubo ngemibala eminingi kuyo yonke i-spectrum. 

Ngenhloso yesibili, sethula amaphuphu anemibala emibili ehlukene yokukhanya kulawa mavelu we-threshold, ukuze sinqume okuncamelayo okusekelwe kubude begagasi. Sizophinda sethule amaphuphu anokukhanya okushintshiwe okubomvu ngenani eliphindwe kabili le-threshold ukuze sibone ukuthi ingabe ukushuba okuhlobene kuyisici esishayelayo kumumo, kunombala.

Inzuzo enkulu yalolu cwaningo ukuthi lungasetshenziswa ukwazisa izindlela zokukhanyisa eziphephile zofudu lwasolwandle emabhishi okuzalela ama-hawksbill.