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  1. Galleries
  2. »
  3. Macro and Flora
  4. » Cicada Orni (larva)

 
Cicada Orni (larva)...

Macro

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Cicada Orni (larva) sent on July 31, 2023 (9:25) by Oleg Tsapko. 32 comments, 550 views. [retina]

at 135mm, 1/250 f/5.6, ISO 400, hand held. Roma, Italy.

La cicala del frassino o cicala media. Le cicale adulte depongono le uova in estate, che si schiuderanno a fine estate o in autunno. Mentre la loro vita da adulte dura solo circa un mese e mezzo per la riproduzione, le larve vivranno per diversi anni sottoterra, nutrendosi dei succhi delle radici delle piante. Questi insetti, che trascorrono la maggior parte della loro vita sottoterra nutrendosi della linfa delle radici degli alberi, emergono tutti insieme ogni 13 o 17 anni, a seconda della specie. Il ciclo di Magicicada septendecim è, come già detto, di 13 o 17 anni (attenzione a questo dettaglio). 13 e 17 sono i numeri primi e, in quanto tali, sono divisibili solamente per 1 o per sé stesso. Se le cicale, invece che un ciclo di 17, avessero un ciclo vitale di 15 anni, i loro predatori con cicli di 3 o 5 anni potrebbero sincronizzarsi e mettersi al passo con le cicale ogni 5 o 3 generazioni. L'impossibilità dei predatori di sincronizzarsi, avendo come unica alternativa l'attesa di 17 anni (mica poco nel regno animale), frutto di un vero e proprio colpo di genio dell'evoluzione, fa in modo che le cicale subiscano molte meno perdite. Ad esempio, se un predatore ha il ciclo di riproduzione di 5 anni loro si incroceranno solo ogni 85 anni!...



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avatarsupporter
sent on July 31, 2023 (9:26) | This comment has been automatically translated (show/hide original)




...

avatarsupporter
sent on August 01, 2023 (4:30) | This comment has been automatically translated (show/hide original)

An excellent macro, shot with a spectacular light, congratulations.
Hello
Mario ;-)

avatarsupporter
sent on August 01, 2023 (10:56) | This comment has been automatically translated (show/hide original)

The soundtrack of our torrid summers. I did not know the metamorphosis of our "musicians". Very interesting shot as well as the caption. bravo Oleg.
bye gios ;-)

avatarsupporter
sent on August 01, 2023 (17:24) | This comment has been automatically translated (show/hide original)

Nice macro.
Hello Oleg ;-)

avatarsenior
sent on August 01, 2023 (17:34) | This comment has been automatically translated (show/hide original)

Beautiful, Oleg. Congratulations 8-)
Hello, Carlo

avatarsupporter
sent on August 01, 2023 (17:36) | This comment has been automatically translated (show/hide original)

Beautiful image
Congratulations Oleg
Greetings
Mauro

avatarsenior
sent on August 01, 2023 (18:32) | This comment has been automatically translated (show/hide original)

Beautiful image and caption that I particularly appreciate

avatarsenior
sent on August 01, 2023 (18:45) | This comment has been automatically translated (show/hide original)

Great macro. Congratulations, hello

avatarsupporter
sent on August 02, 2023 (12:47) | This comment has been automatically translated (show/hide original)

Super. Good day Corrado

avatarsupporter
sent on August 02, 2023 (14:09) | This comment has been automatically translated (show/hide original)

nice macro and document... :-)

avatarsupporter
sent on August 02, 2023 (14:45) | This comment has been automatically translated (show/hide original)

Excellent macro shot in a beautiful light and accompanied by an interesting caption.
Congratulations
Elizabeth

avatarsupporter
sent on August 02, 2023 (15:28) | This comment has been automatically translated (show/hide original)

;-) What about exhaustive caption to the TOP even for those like me. he did not know anything then the shots are consequently
Congratulations ;-)

avatarsupporter
sent on August 02, 2023 (16:51) | This comment has been automatically translated (show/hide original)

Not bad this free hand of yours.

avatarsenior
sent on August 02, 2023 (19:11) | This comment has been automatically translated (show/hide original)

An excellent macro, hello.
Gianni :-)

avatarsupporter
sent on August 02, 2023 (19:51) | This comment has been automatically translated (show/hide original)

Top Oleg.
A good evening. -
-
Mauro

avatarsupporter
sent on August 02, 2023 (20:05) | This comment has been automatically translated (show/hide original)

beautiful, in reality it is an ESUVIA, that is, the exoskeleton that remains after the last mutation with the wings formed ...
Hello

avatarsenior
sent on August 04, 2023 (15:01) | This comment has been automatically translated (show/hide original)

but from that show it looked like an Esuvia and instead no...
good

avatarsupporter
sent on August 04, 2023 (15:41) | This comment has been translated

Wonderful!

avatarsupporter
sent on August 04, 2023 (15:42) | This comment has been automatically translated (show/hide original)

top

avatarsupporter
sent on August 04, 2023 (15:42) | This comment has been automatically translated (show/hide original)

Thank you all for visiting my gallery!
Have a nice weekend!
Oleg.


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