Intende yesandla se-coco de mer yaseSeychelles iyinganekwane. Imbewu yayo - enkulu kunazo zonke futhi esinda kakhulu emhlabeni - kwakukholelwa ukuthi ikhula ezihlahleni ngaphansi kwamagagasi oLwandlekazi i-Indian Ocean, futhi ibamba amandla amakhulu okuphulukisa. Ngisho nalapho kamuva kuvela ukuthi isundu limila emhlabathini owomile, kwavela inganekwane entsha: Ukuze kukhiqizwe lembewu, izitshalo zeduna nensikazi ziyangana ngobusuku obunesiphepho, noma kunjalo indaba yendawo.
Izinganekwane zingase zibe yilokho nje, kodwa intende isenakho ukukhanga okuyingqayizivele. UStephen Blackmore eRoyal Botanic Garden Edinburgh, e-UK, uthi: “I-coco de mer iwukuphela kwesitshalo esinamandla esingamelana ne-panda enkulu noma ihlosi. Manje isayensi yembewu yesundu esithakazelisa iyabonakala ithakazelisa ngendlela efanayo.
Ngakho isitshalo esimila enhlabathini esezingeni eliphansi eziqhingini ezimbili nje sikhiqiza kanjani imbewu eqopha umlando efinyelela ingxenye yemitha ububanzi futhi engaba nesisindo esingamakhilogremu angu-25?
Bathola ukuthi amaqabunga anengxenye eyodwa kwezintathu kuphela ye-nitrogen ne-phosphorus etholakala emaqabunga ezinye izihlahla nezihlahla ezikhula eSeychelles. Futhi, ngaphambi kokuba amaqabunga amadala achitheke, isundu lizikhipha kahle izakhi eziningi kuwo futhi liwasebenzise kabusha. Ukutshala imali encane kangaka emaqabunga kusho ukuthi isundu sinokuningi esingakutshala esithelweni salo.
Umzali onakekelayo
Kodwa akuyona ukuphela kwendlela amahlamvu asiza ngayo ukukhula kwezithelo. Amaqabunga amakhulu, anamacembe asebenza ngokuphawulekayo ekufakeni amanzi esiqwini ngesikhathi sezihlambi zemvula. U-Kaiser-Bunbury nozakwabo babonise ukuthi lo mfula wamanzi ubuye ucoshe noma iyiphi i-detritus enothile ngezakhi emaqabunga - izimbali ezifile, impova, indle yezinyoni nokunye - bese uyigeza phansi emhlabathini ngokushesha endaweni yesundu. Ngakho-ke, ukugxila kwe-nitrogen ne-phosphorus enhlabathini okungamasentimitha angama-20 ukusuka esiqwini bekuphakeme okungenani ngamaphesenti angama-50 kunenhlabathi eqhele ngamamitha amabili nje.
U-Blackmore uzibonele mathupha ukuthi amanzi esiteshi samaqabunga asebenza kahle kangakanani - angcono kunezinye imisele ezakhiweni zendawo, uthi. "Kodwa ukucabanga ngakho ngokungahambisani nokugeleza kwamanzi kuphela kodwa izakhi kwakuyindlela ebaluleke kakhulu yokucabanga futhi yengeza okuningi ekuqondeni kwalesi sihlahla esimangalisayo," u-Blackmore uyanezela.
U-Hans Lambers e-University of Western Australia e-Crawley, ocwaninga ngendlela izinhlobo zezitshalo eziye zajwayela ngayo amazinga e-phosphorus aphansi kakhulu enhlabathini eningizimu-ntshonalanga ye-Australia, uthi amaqabunga e-coco de mer asakaza izakhi “ayisu elihluke ngokuphelele” .
Ukutholakala kuhlotshaniswa nenye into ephawulekayo ngesundu: kubonakala kuyingqayizivele embusweni wezitshalo ekunakekeleni izithombo ngemva kokuhluma. Izihlahla eziningi seziphenduke imbewu ehamba - emoyeni noma emathunjini esilwane - ukuze izithombo zingancintisani nomzali wazo ngezinsiza ezifanayo. Ibhajwe eziqhingini ezimbili futhi ingakwazi ukuntanta, imbewu ye-coco de mer ngokuvamile ayihambi kude kakhulu.
Kodwa abacwaningi bathola ukuthi izithombo ziyazuza ngokukhula emthunzini womzali, ngoba ziyakwazi ukuthola umhlabathi onomsoco kakhulu.
“Yilokhu kanye okwasithakazelisa kakhulu ozakwethu kanye nami nge-Lodoicea,” kusho uKaiser-Bunbury. “Asazi ngolunye uhlobo [lwesitshalo] elwenza lokhu.”
Izelamani eziyingozi
Lokhu namanje akuchazi ukuthi kungani imbewu inkulu kangaka. Ngokombono othile, kufanele sibuyele emuva ezinsukwini zokufa kwama-dinosaurs ukuze sithole incazelo. Cishe eminyakeni eyizigidi ezingama-66 edlule, uhlobo lwamadlozi lwesundu cishe lwaluthembele ezilwaneni ukuthi zisakaze imbewu yalo enkulu kakhulu - kodwa mhlawumbe lwalahlekelwa yilo mshini lapho ucwecwe lwezwekazi elihlanganisa iSeychelles lugqashuka kulokho manje osekuyiNdiya, luhlukanisa intende yesundu. .
Lokhu kwakusho ukuthi izithombo kwakufanele zizivumelanise nezimo ukuze zikhule ethunzini elimnyama labazali bazo. Ngenxa yokuthi imbewu enkulu yayinomsoco omuhle, izithombo zase zikuhlomele kahle ukwenza kanjalo, futhi ekugcineni zedlula iningi lezinye izinhlobo zezihlahla endaweni yemvelo: kuze kube namuhla, amasundu kacoco de mer ayizinhlobo ezivelele emahlathini azo.
Ngaphansi kwezimo ezingavamile zamahlathi abuswa uhlobo olulodwa, ukuncintisana kwezelamani - esikhundleni sokuncintisana phakathi kwezinhlobo zezilwane - kwaqhuba ukuziphendukela kwemvelo, kusho uKaiser-Bunbury. Lokhu kwakusho ukuthi intende yesundu yakhula kancane kancane imbewu ibe nkulu ukuze inikeze izithombo ngenqolobane enkulu yezakhamzimba ukuze kukhuliswe amathuba okusinda ngokumelene nabazala bayo.
U-Kevin Burns e-Victoria University yase-Wellington, eNew Zealand, ufunda indlela izitshalo ezikhula ngayo eziqhingini ezingazodwa, njenge-Seychelles, futhi uthi i-coco de mer ibonakala ilandela iphethini evamile yokuziphendukela kwemvelo. Uthi: “Izitshalo zivame ukumila imbewu enkulu ngemva kokuhlala eziqhingini ezingazodwa, futhi izinhlobo zezitshalo zaseziqhingini zivame ukuba nembewu enkulu kunezihlobo zazo zasemaphandleni. "Imbewu enkulu ngokuvamile igcina izithombo ezincintisanayo."
I-coco de mer palm ayikavezi zonke izimfihlo zayo, noma kunjalo. Ukuthi izimbali zesifazane - ezinkulu kunazo zonke zesundu - zithunyelwa kanjani impova kuseyimfihlakalo. U-Blackmore usola ukuthi izinyosi zihilelekile, kodwa abanye abacwaningi bacabanga ukuthi izibankwa zingase zidlulisele impova ezihlahleni zesilisa ezingamamitha angu-1.5 ubude, ezibukeka njengephallic. Inganekwane yendawo, ngakolunye uhlangothi, isikisela ukuthi izihlahla zesilisa empeleni ziziklebhula phansi kusihlwa kunesiphepho bese zivaleleka ekugoneni okuvusa inkanuko kwenyama nezinsikazi. Iwuhlobo lwendaba elengeza ekuhehekeni kwentende.
Umthombo: - I-New Scientist - Inkomba yejenali: I-Phytologist Entsha,
