Izindlela zokutshala izitshalo ngemuva kokuhlakazeka kwezindawo ezikude (LDD) nolwazi oluhlobene lwamanje kwakuyisihloko sokubuyekezwa kwethimba likaProf. Li Dezhu eKunming Institute of Botany of the Chinese Academy of Sciences (CAS), ngokubambisana nabacwaningi abavela ku- I-Xishuangbanna Tropical Botanical Garden yase-CAS, i-Hebrew University of Jerusalem, kanye neNyuvesi yase-Edinburgh.
Isibuyekezo sishicilelwe ku Amathrendi ku-Ecology & Evolution.
I-LDD engaphezu kwezinhlobo zezinhlobo zezilwane iyisisusa esibalulekile sokusatshalaliswa kwezinhlobonhlobo zezinto eziphilayo emhlabeni jikelele. Nakuba izenzakalo ze-LDD zingavamile futhi kunzima ukuzilinganisa nokubikezela, zibaluleke kakhulu ku-biogeography, lapho zingaba nomthelela ekuhlanganisweni kwe-biota, izimpendulo ekushintsheni kwemvelo yemvelo kanye ne-anthropogenic, kanye nokusabalala kwezinhlobo ezihlaselayo.
Njengoba sazi, ukuhlakazeka kusebenza kuphela uma kulandelwa ukusungulwa ngempumelelo, nokho izifundo zamuva nje zezitshalo ze-LDD zivame ukugxila kuphela esiteji sokuhlakazeka, okusho ukuthi ukunakwa okwanele kuye kwanikezwa ukusungulwa ngemva kokuhlakazwa. Ngakho-ke ukuhlanganiswa komqondo kokusungulwa kwangemva kwe-LDD kuzo zonke izikali ezihlukene zentela kanye nendawo-yesikhashana kushoda ngokuphawulekayo.
Ithimba likaProf. Li sekuphele amashumi eminyaka lisebenzela i-intercontinental biogeography, phylogeography, kanye ne-LDD yezitshalo. Ngocwaningo olunzulu lwezincwadi, ithimba lifingqe ulwazi lwamanje lwesigaba sokusungulwa kwe-post-LDD ekuhlanganiseni amakholoni ezitshalo. Bahlonze izinto eziyisithupha ezibalulekile ezinquma impumelelo yokusungulwa: ingcindezi ye-propagule; izici zokusebenza; izehlakalo ezimbi kakhulu kanye nokuphazamiseka kwe-anthropogenic; abahlukumezi, abaqhudelana nabo, nabaphikisi; ukuguquguquka kwe-niche; kanye nomphumela we-Allee.
Ngalesi sisekelo, bahlongoze uhlaka olujwayelekile lwenani lokusungulwa kwangemva kwe-LDD, okuhloswe ngalo ukuhlinzeka ngohlaka lwethiyori yobuningi bocwaningo lwamakholoni ngemva kwe-LDD kanye nezindlela zokuhlola ubungozi bokuhlaselwa kwezinhlobo zezilwane.
Ngokusho kwabacwaningi, i-biogeography, i-phylogeography, kanye ne-ecology yokunyakaza kufanele kuhlanganiswe ukuze kuvezwe ngokunembile ukwenzeka, isikhathi, kanye nendlela yezenzakalo ze-LDD.
Ngaphezu kwalokho, ubudlelwano phakathi kwezinto ezithinta ukusungulwa kufanele bufundwe ukuze kutholwe ukubaluleka kwazo okuhlobene. Ngaphezu kwalokho, umehluko ezindleleni zokusungulwa ngemva kwe-LDD kufanele uqhathaniswe kuzo zonke izikali ze-geological (izigidi zeminyaka) kanye nezakamuva (i-Anthropocene).
Sekukonke, lokhu kubuyekezwa kunikeza izisekelo zomqondo nenani zokugcwalisa izikhala zolwazi lwamanje mayelana nokusungulwa kanye nokuthuthukisa ukuqonda kwethu izinqubo ezilolonga ukuguquguquka kwe-biota yomhlaba wonke.
“Ukuqonda okuthuthukisiwe kokusungulwa ngemuva kwe-LDD kuzosisiza siqonde okwedlule futhi sibikezele ikusasa enkathini yezinguquko ezisheshayo ze-anthropogenic. Kungase futhi kusize ekwehliseni eminye yemithelela emibi yalezi zinguquko ngokunciphisa ukuhlasela kwebhayoloji kanye nokusiza umnyakazo wezitshalo ekuphenduleni ukushintsha kwesimo sezulu,” kusho uProf. Li.