<prompt> Fingqa isihloko: Izintuthwane zasemadolobheni zaseNew York ezihlakaniphile emigwaqweni ziye zakuthanda ukudla okuvame ukukhethwa omakhelwane bazo abangabantu. Ukuhlola izinambuzane eziqoqwe emigwaqweni naseziqhingini zezimoto eManhattan kubonisa ukuthi imizimba yazo iqukethe uphawu lwamangqamuzana lokudla okungenamsoco. Kwakungenjalo nangezintuthwane ezihloniphekile ezivame ukuvakashela izindawo ezinamahlamvu. Ososayensi bahlola izintuthwane ezingaphezu kwekhulu ezimelela izinhlobo ezingu-21 ezivela ezindaweni eziningi zaseBig Apple. Umcwaningi oholayo uDkt. Clint Penick, waseNorth Carolina State University, wathi: Kusobala ukuthi ukudla kwabantu kuyingxenye ebalulekile yokudla kwezinhlobo zasemadolobheni. Lezi yizintuthwane ezidla udoti wethu, futhi lokhu kungase kuchaze ukuthi kungani izintuthwane ezisemgwaqweni zikwazi ukuba nenani elikhulu kangaka emadolobheni. Ososayensi bahlola izintuthwane ezingaphezu kwekhulu ezimelela izinhlobo ezingu-21 ezivela ezindaweni eziningi zaseBig Apple. Ukudla kwabo kwahlolwa ngokuhlaziya uhlobo lwekhabhoni emizimbeni yabo. Zonke izilwane, kuhlanganise nabantu, zithola i-carbon ekudleni, kodwa uhlanga lwe-athomu lwalesi sakhi olutholakala ezinsikeni lwaluhlobene ngokukhethekile nommbila nomhlanga. Ummbila noshukela ocwengekile kokubili kuningi ekudleni okucutshungulwayo lapho kusetshenziswa khona njengezithasiselo nezikhulisa ukunambitheka. Ubufakazi be-isotope ekhethekile i-carbon-13 babonisa ukuthi lezi zintuthwane zazidle ukudla okungenamsoco. Uhlobo olwalunamazinga aphakeme kakhulu e-carbon-13 kwakuyisintuthwane esivame kakhulu emigwaqweni, intuthwane ehlala emgwaqweni iTetramorium caespitum. Njengamalungu amaqembu ezigelekeqe zasemadolobheni, amasosha aseTetramorium ahlanganyela ezimpini ezinobudlova zokulwela indawo njengoba amakoloni aphikisanayo elwela indawo. Zenza nokuphanga okuningi nokungena emizini yabantu, futhi ziyizinambuzane zasendlini ezaziwayo. Ukuhlola izinambuzane eziqoqwe emigwaqweni naseziqhingini zezimoto eManhattan kubonisa ukuthi imizimba yazo iqukethe uphawu lwamangqamuzana lokudla okungenamsoco. Ososayensi, okutholakale kubo kubikwa ephephabhukwini i-Proceedings of the Royal Society B, bathola isikhonyane esisodwa esihlala emgwaqweni esivula izimpondo zaso lapho sidla ukudla kwabantu. I-Lasius emarginatus, eyabonwa eNew York City kuphela eminyakeni emihlanu edlule,  <response>: Lezi zinambuzane zaqoqwa emigwaqweni naseziqhingini zaseManhattan. Imizimba iqukethe uphawu lwamangqamuzana okudla okungenamsoco. Into etholakala ezintuthwaneni ezihlotshaniswa nommbila nomhlanga. 