Cicadas Nthawi Zonse Zimatuluka Zaka 13 kapena 17 Zonse
Kumayambiriro a kum'maŵa kwa United States, cicadas, yomwe imatchedwa Magicicada, imatuluka pansi zaka 13 kapena 17 pamene nthaka imatha kufika 64 F. Nthaŵi zambiri zimakhumudwa chifukwa cha dzombe, zomwe ndizo ziwombankhanga, zikuluzikulu zazikulu zouluka , pafupifupi inchi ndi theka lalitali, ndi matupi akuda, maso ofiira, ndi mapiko osakhwima. Malo a Beltway- Washington, DC , Maryland, ndi Virginia- ali ndi gawo la cicadas zaka zambiri.
Mu 2017, zikuwoneka ngati gulu la Cicadas District lomwe linayambira kale kuposa momwe moyo wa zaka 17 unayambira. Akatswiri ena amanena kuti kusintha kwa nyengo ndikuneneza, ena amanena kuti gulu la cicadas likuyang'ana upainiya kapena kufulumira kayendedwe kawo kukhazikitsa mzere watsopano kapena ana.
Moyo monga Cicada
Cicadas amakhala moyo wawo wonse mobisa monga nymphs ndipo amaoneka ngati cicadas akuluakulu okonzeka kukwatirana. Ngati cicada ali ndi mwayi kuthawa nyama zowonongeka ndikukhala moyo wake, ndiye kuti akhoza kukhala ndi masabata 4 pamwamba pa nthaka asanafe. Ma cicadas akatuluka, ndi ochuluka kwambiri kuti angawerenge. Mukuwawona kulikonse-pamsewu, pamitengo, pabwalo, ndi pamsewu.
Kawirikawiri, kumayambiriro mpaka pakati pa mwezi wa May, ma cicada nymphs amachoka pansi, pamtengo ndi kukhetsa zikopa zawo. Amunawo amaimba mokweza kuti akope akazi okwatirana. Cicadas ali pakati pa zolengedwa zazikulu kwambiri zachilengedwe zomwe zili ndi decibel 85 mpaka 100. Mayi amaika mazira awo m'mitengo ya mitengo.
Nymphs amathamanga ndi kutchera masentimita angapo pansi pa nthaka. Zomwe zili pamwambazi zimatha masabata osachepera anayi. Kuyambira pakati pa mwezi wa June, akuluakulu onse amafa. Amuna a cicadas amafa posakhalitsa. Mayi amaika mazira 400 mpaka 600 asanafe.
Mbalame Zamoyo
Akatswiri a zamagetsi alemba ma "ana" kapena magulu a cicadas chaka ndi malo.
Mayi amenewa ali pa mzere umodzi wa zaka 13 kapena 17. Pali ana 12 aliwonse, kumadera osiyanasiyana a dzikoli, a cicadas a zaka 17. Pali ana atatu a cicadas a zaka 13. Zotsatira zake, n'zotheka kupeza cicadas pafupifupi chaka chilichonse poyenda kumalo oyenera.
Mwachitsanzo, ana awiri omwe amakhala ku Washington, DC ndi East Coast Brood II, yomwe idabweranso mu 2013 ndipo idzabweranso mu 2030, ndi Great Eastern Brood X, yomwe idatuluka mu 2004 ndipo iyenera kubwerera 2021.
Akatswiri ena amakhulupirira kuti kuyambira mu 2017 ku Washington, DC ayenera kuti anali Brood X akuyesera kutuluka msanga ndi kukhazikitsa ana atsopano.
Palibe Choipa, Palibe Choipa
Mwamwayi, cicadas suma kapena kuluma kotero kuti sizovulaza anthu kapena ziweto. Nthawi zambiri sasiya kuwonongeka, kupatulapo mitengo ina ndi zitsamba. Kukula kwa mitengo kukuwoneka kuchepa kwa chaka chisanafike ana, chifukwa cha kuchuluka kwa kudya pa mizu ndi nymphs. Mutha kupeza kuti cicadas ikukhumudwitsa, ngakhale kuti ambiri amaganiza kuti ma cicadas ndi moyo wawo wapadera ndi wokondweretsa.
Mafinya amadyetsa nymph cicadas ndipo amawoneka kuti akusangalala chaka choyamba asanatuluke, koma akuvutika zaka zotsatirazi chifukwa cha kusowa kwa chakudya.
Komanso, tizilombo tam'tchire timapindula kwambiri mu chaka chomwe chimatuluka ndikugwedeza akuluakulu pamtambo pamene amwalira.