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  1. Galleries
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  3. Macro and Flora
  4. » The cycle of life

 
The cycle of life...

La natura di notte

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The cycle of life sent on July 19, 2023 (16:08) by MarcoCoppola. 56 comments, 822 views. [retina]

, 1/250 f/16.0, ISO 100, tripod.

Proseguono senza sosta le mie esplorazioni notturne, dopo tre mesi la stanchezza e le poche ore di sonno iniziano a farsi sentire ma non è il momento di fermarsi, la natura è pronta a mostrarmi le sue particolarità. La Cicada orni è un insetto appartenente alla famiglia cicadidae. Il suo ciclo vitale inizia in estate durante il periodo degli accoppiamenti, i maschi emettono un particolare richiamo per attirare le femmine. Questo verso, chiamato frinire, è generato da un complesso apparato stridulatore: ai lati dell'addome ci sono due cavità che contengono delle membrane, fatte vibrare da appositi muscoli. Le femmine attirate da questi versi si avvicinano ai maschi e iniziano il corteggiamento, durante il quale si abbracciano e si toccano le zampe. Le uova vengono deposte il giorno dopo nel terreno e si schiudono a fine estate o in autunno. Appena nate, le larve iniziano la loro vita sotterranea che può durare fino a 4 anni, si spostano nel terreno scavando dei cunicoli con le loro forti zampe anteriori e succhiano la linfa dalle radici degli alberi con la loro lunga proboscide. Durante la crescita effettuano diverse mute e lentamente diventano simili agli adulti, iniziano a crescere le ali ma sono ancora troppo piccole e non adatte per il volo. Quando sono cresciute risalgono il terreno ed escono all'aperto, si arrampicano tra la vegetazione e compiono la metamorfosi. In questa delicatissima fase, gli adulti sviluppano le ali e abbandonano il vecchio esoscheletro, chiamato esuvia, rompendolo dietro la testa. Dopo la metamorfosi le ali sono piegate e il loro corpo, di colore giallo e verde, è molto delicato e ancora non perfettamente formato, sono necessarie alcune ore per distendere le ali e adattarsi al nuovo esoscheletro, che cambia colore diventando marrone. Le esuvie rimangono per molte ore attaccate alla stessa vegetazione dove si sono aggrappate le larve prima della metamorfosi. Dopo questa fase volano sui rami alti degli alberi per iniziare una nuova vita. Iniziano subito a nutrirsi della linfa infilando la loro forte proboscide nei tronchi degli alberi. I maschi iniziano a frinire per attirare le femmine, iniziando cosi un nuovo ciclo, vivono meno di 2 mesi e non sopravvivono all'autunno. Le cicale mi hanno sempre incuriosito, il loro richiamo mi accompagna durante le calde giornate estive e mi trasmette tranquillità. Sono molto difficili da osservare perché preferiscono stare nascoste sui rami alti degli alberi. Quest'anno a causa del cambiamento climatico tante specie hanno iniziato con un mese di ritardo il loro ciclo vitale estivo. Le cicale hanno completato la metamorfosi nei primi giorni di luglio, sto trovando molte esuvie tra l'erba e i richiami dei maschi sono molto forti, mi sono preoccupato quando per tutto il mese di giugno non li ho sentiti. Qualche giorno fa ho osservato questa bellissima scena, erano le 3 di notte e su un giovane ramo d'ulivo questa cicala aveva da poco completato la metamorfosi, vicino a lei c'era l'esuvia ancora attaccata. É una femmina perché l'addome non ha l'apparato stridulatore, in questa foto potete osservare dettagliatamente la colorazione verde e tutte le particolarità di questa specie. Sono rimasto ad osservarla per circa un'ora e poi mi sono allontanato lentamente per non spaventarla.



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avatarsupporter
sent on July 19, 2023 (17:01) | This comment has been automatically translated (show/hide original)

Hello Mark, beautiful this macro of the cicada with its exuvia and as always deserves to spend time reading the exhaustive caption. A night that has brought its fruits, congratulations, hello Fabrizio.

avatarsenior
sent on July 19, 2023 (17:14) | This comment has been automatically translated (show/hide original)

Thanks Fabrizio for the beautiful comment, I'm glad you liked it.
The nights always give me great satisfaction, if only for the fact of being silent in nature.
Hello

avatarsenior
sent on July 19, 2023 (18:25) | This comment has been automatically translated (show/hide original)

Technically excellent and great storytelling, in addition of course to the always interesting content! Have you changed equipment? :-D

avatarsupporter
sent on July 19, 2023 (18:39) | This comment has been automatically translated (show/hide original)

I am always enchanted to observe the results of your passionate nocturnal explorations. Reading your story, once again, you can capture your emotions and above all the many knowledge you have on the subject. The photo is an important naturalistic document, as well as being technically perfect!
Many congratulations for your work, Marco!

avatarsenior
sent on July 19, 2023 (18:56) | This comment has been automatically translated (show/hide original)

Show
a great shot
congratulations Mark
always very beautiful your shots hello ;-)

avatarsupporter
sent on July 19, 2023 (18:57) | This comment has been automatically translated (show/hide original)


magnificent-hello, Giordano

avatarsenior
sent on July 19, 2023 (18:58) | This comment has been automatically translated (show/hide original)

Thank you very much Luigi, Nadia, Lello and Giordano for the beautiful comments!
Hello

avatarsenior
sent on July 19, 2023 (19:31) | This comment has been automatically translated (show/hide original)

Luigi, I'm using the irix these days, I want to do other tests but for sure he has everything I want from a goal. I
will use it together with the Nikon 200, both for the emotional value that I reserve towards the latter, and for the blur that remains slightly more delicate.




avatarsupporter
sent on July 19, 2023 (20:22) | This comment has been automatically translated (show/hide original)

A great document for this particular subject ;-)

avatarsenior
sent on July 19, 2023 (20:49) | This comment has been automatically translated (show/hide original)

Thank you so much Simone Sorriso

avatarsenior
sent on July 19, 2023 (21:12) | This comment has been automatically translated (show/hide original)

Beautiful composition!
Congratulations
Gionskj

avatarsenior
sent on July 19, 2023 (21:19) | This comment has been automatically translated (show/hide original)

Thank you so much Gionskj for the appreciation.
cheers

avatarsenior
sent on July 20, 2023 (1:27) | This comment has been automatically translated (show/hide original)

Beautiful image Great document and caption. Congratulations Mark.

avatarsenior
sent on July 20, 2023 (1:43) | This comment has been automatically translated (show/hide original)

Thank you so much Giustino I am glad that you liked it.
cheers

avatarsupporter
sent on July 20, 2023 (8:12) | This comment has been automatically translated (show/hide original)

congratulations, for the photos, knowledge and enthusiasm that transmit! good! :-)

avatarsupporter
sent on July 20, 2023 (12:01) | This comment has been automatically translated (show/hide original)

Beautiful and interesting post!
congratulations!

avatarsenior
sent on July 20, 2023 (12:24) | This comment has been automatically translated (show/hide original)

Thanks a lot Mario and Oleg for the comments Sorriso
cheers

avatarsupporter
sent on July 20, 2023 (14:03) | This comment has been automatically translated (show/hide original)

Beautiful this image that shows very well the mutation of the cicada.
Your night excursions continue and you always give us interesting shots accompanied by an exhaustive caption.
Congratulations
Hello
Walter

avatarsenior
sent on July 20, 2023 (14:16) | This comment has been automatically translated (show/hide original)

Hello Walter, thanks for the beautiful comment :-)
With my night explorations the summer always ends too early, it seems like yesterday that I started, instead almost 3 months have already passed.

avatarsupporter
sent on July 20, 2023 (16:15) | This comment has been automatically translated (show/hide original)

Nature always knows how to amaze those who know how to appreciate it... shooting beautiful nature ... Hello


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