IiCicadas zexesha elizayo ziphuma emva kweminyaka eyi-13 okanye eyi-17
Kwisiqingatha esempumalanga yeUnited States, ii-cicadas zezihlandlo, ezibizwa ngokuba yiMicicicada, ziphuma emhlabathini yonke iminyaka eyi-13 okanye eyi-17 xa umhlaba uphaphazela ukuya kwi-64 F. Ngokuqhelekileyo ukuphosakela ngeenkumbi, eziyizinkumbi, iicicadas ezinkulu ezinambuzane ezindizayo , malunga ne intshi kunye nesiqingatha ubude, kunye nemizimba emnyama, amehlo abomvu, namaphiko amancinci. Indawo yaseBeltway- eWashington, DC , eMaldin, naseVirginia- inesabelo sayo se-cicadas iminyaka emininzi.
Ngo-2017, kubonakala ngathi iqela leCicadas yeSithili lavela ngaphambilana nomjikelezo wobomi obuneminyaka eli-17. Ezinye iingcali zithi ukutshintsha kwemozulu kuyisola, abanye bathi ukuqoqa iicicadas kufuna ukuphayona okanye ukukhawuleza inkqubo yabo ukuseka umgca omtsha okanye umntwana.
Ubomi njengeCicada
IiCicadas zihlala ubomi babo ngaphantsi komhlaba njengama-nymphs kwaye zivela njengama-cicadas amakhulu akulungele ukutshata. Ukuba i-cicada inenhlanhla ukuba ibalekele izidumbu kwaye iphile umjikelo wayo wobomi, ngoko ihlala iiveki ezi-4 ngaphantsi komhlaba ngaphambi kokufa. Xa iicicadas zivela, zininzi kakhulu ukuba zibale. Uyabona kuyo yonke indawo-emagqabini, emithini, emaphandleni nakwisitalato.
Ngokuqhelekileyo, ekuqaleni kwephakathi kukaMeyi, iicicada nymphs zikhupha emhlabathini, emithini kwaye zichithe izikhumba zazo. Amadoda ahlabelela ngokukhawuleza ukukhangela abesifazana abasetyhini. IiCicadas ziphakathi kwezidalwa eziphakamileyo zezilwanyana ezinamaqela angama-85 ukuya ku-100. Amabhinqa abeka amaqanda awo kumasebe emithi.
I-nymphs iyaqhaqha kwaye igqitha ii-intshi ezimbalwa phantsi komhlaba. Umjikelezo ophezulu ungaphantsi kweeveki ezine. Ukususela phakathi koJuni, abantu abadala bafa bonke. Ama-cicadas angamadoda afe emva nje kokutshatyalaliswa. Amantombazana alala amaqanda angama-400 ukuya kuma-600 ngaphambi kokufa.
Izidalwa eziMnyama
Ama-entomologists aphepheni "ama-brood" okanye amaqela e-cicadas ngonyaka kunye nendawo.
Ezi zibophelelo zikwimeko efanayo yexesha eli-13 okanye eli-17 kunye. Kukho i-12 broods, nganye kwindawo ehlukile yelizwe, i-cicadas ye-17 yeminyaka. Kukho iintlobo ezintathu zeminyaka eyi-13 yama-cicadas. Ngenxa yoko, kunokwenzeka ukufumana iicicadas phantse nawuphi na unyaka ngokuya kwindawo efanelekileyo.
Ngokomzekelo, ii-broods ezimbini ezihlala eWashington, DC zihlala kwi-East Coast Brood II, ezagqitywa ngokugqibela ngo-2013 kwaye zifanele zibuyele ngo-2030, kunye ne-Great Eastern Brood X, eye yavela ngo-2004 kwaye ifuna ukubuyela 2021.
Ezinye iingcali zikholelwa ukuba ukuvulwa kwangethuba ngo-2017 eWashington, DC kungenzeka ukuba i-Brood X izama ukuphuma kusasa ize iqalise intsha.
Akukho Kungozi, Akukho Nkohlakalo
Ngethamsanqa, ii-cicadas azilumi okanye zihlabayo kangangokuba azilimazi abantu okanye izilwanyana. Ngokuqhelekileyo abashiya umonakalo ongapheliyo, ngaphandle kweminye imithi encinane kunye nezihlahla. Ukukhula komthi kubonakala kunciphisa umnyaka ngaphambi kokuvela komntwana, ngenxa yokutya okunyusayo kwiingcambu nge-nymphs. Unokufumanisa ukuba iicicadas ziyacaphukisa, nangona abaninzi becinga iicicadas kunye nomjikelezo wabo wobomi obunqabileyo.
I-Moles idla i-nymph cicadas kwaye ibonakala ikhula konyaka ngaphambi kokuvela, kodwa ihlupheke kule minyaka elandelayo ngenxa yokunyamalala komthombo wokutya.
Kwakhona, i-turkeys zasendle zinenzuzo kakhulu kunyaka okhulayo we-cicada ngokukhupha abantu abadala emhlabeni xa befa.