Ukubhengeza iBoyd Lyon Scholar yowama-2023

Rhoqo ngonyaka, iBoyd Lyon Sea Turtle Fund ibamba isifundi somfundi webhayoloji yaselwandle ophando lwakhe lugxile kumafudo olwandle. Ophumeleleyo kulo nyaka nguRobert Gammariello.

Funda isishwankathelo sakhe sophando ngezantsi:

Amantshontsho ofudo lwaselwandle aqanduselwayo afumana ulwandle emva kokuphuma kwindlwane yawo ngokuya ngasezibaneni ezikufutshane nomkhathi, kwaye umbala okhanyayo ubonakaliswe ukunika iimpendulo ezahlukeneyo, ngokukhanya okubomvu okutsala amafudo angaphantsi kokukhanya okuluhlaza okwesibhakabhaka. Nangona kunjalo, olu phononongo luqhutywe kuphela kwiqela elikhethiweyo leentlobo zentlanzi yolwandle (ikakhulukazi eluhlaza kunye ne-loggerheads). 

Ufudo lwaselwandle lweHawksbill (Eretmochelys imbricata) azivavanyelwanga naluphi na ukhetho olunjalo kwaye, ngokuqwalasela ukuba iindlwane ze-hawksbill phantsi kwezityalo apho kuqikelelwa ukuba kumnyama, umntu unokulindela ukhetho lwabo kunye novakalelo ekukhanyeni ukuba kwahluke kwezinye iintlobo. Oku kuneempembelelo zokuphumeza ukukhanyisa okukhuselekileyo kofudo, ekubeni yintoni ukukhanya okukhuselekileyo kwemifuno kunye ne-loggerheads isenokungabi zikhanyiso ezikhuselekileyo kwii-hawksbill. 

Iprojekthi yam ineenjongo ezimbini:

1. ukumisela umda wokubhaqa (ukukhanya kokukhanya) ovelisa impendulo yefototactic ukusuka kumantshontsho ehawksbill kuwo wonke umzobo wokubonwayo, kunye
2. ukufumanisa ukuba ii-hawksbills zibonisa ukhetho olufanayo kumaza amaza amafutshane (blue) okukhanya xa kuthelekiswa nobude obude (obomvu) bokukhanya.

Inkqubo yazo zombini ezi njongo iyafana: i-hatchling hawksbill ifakwa kwiY-maze, kwaye emva kwethuba lokuqhelanisa, ivunyelwe ukuba ijongise ngaphakathi kwimaze. Kwinjongo yokuqala, amantshontsho aqanduselwayo anikwa ukukhanya ekupheleni kwengalo enye aze anikwe ubumnyama kwelinye icala. Ukuba intshontsho eliqanduselwayo linokubona ukukhanya kufuneka liye ngakulo. Sithoba ubunzulu kulingo olulandelayo ngendlela yobulumko de amantshontsho aqanduselweyo angabe esahambela koko kukhanya. Elona xabiso liphantsi iqandusela elihamba lisiya ngakulo kukubona umqobo walo mbala wokukhanya. Emva koko siphinda le nkqubo kwimibala emininzi kwi-spectrum. 

Kwinjongo yesibini, sibonisa amantshontsho aqanduselweyo ngemibala emibini eyahlukeneyo yokukhanya kula maxabiso e-threshold, ukumisela ukhetho olusekwe kubude be-wavelength. Siza kunika amantshontsho amantshontsho aqanduselweyo anokukhanya okuguquguqukayo okubomvu kwixabiso eliphindwe kabini ukuze sibone ukuba ubungakanani obusondeleneyo yeyona nto iqhubayo, kunombala.

Olona ncedo lukhulu kolu phando kukuba lunokusetyenziselwa ukwazisa iindlela zokukhanyisa ezikhuselekileyo zofudo lwaselwandle kwiilwandle zokuzalela ii-hawksbill.