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Yasuni national park part VII

 
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pbertner



Joined: 02 Mar 2010
Posts: 889
Location: Canada

PostPosted: Thu Jan 18, 2018 12:12 am    Post subject: Yasuni national park part VII Reply with quote

1. Map frog (Hypsiboas geographicus):



2. Glass frog (Vitreorana ritae):



3. Backlit ovipositing katydid:



4. An inquisitive anole:



5. Scorpion under UV light:



6. Cryptic lichen katydid:



7. Mating clearwing butterflies (Cithaerias sp.).
Transparency in the clear- or glasswings is thought to confuse would-be predators. A paper in Nature Communications from 2015 https://www.nature.com/articles/ncomms7909
illustrates the novel way in which random nano-sculpturing of the scales allows for the passage of light with little reflectance over essentially all viewing angles, a pretty remarkable feat.



8. Moss masquerading stick insect:



9. Camouflaged stick insect:



10. Baby leaf-nosed bat (Phyllostomidae):



Thanks for looking and commenting,
Paul
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Beatsy



Joined: 05 Jul 2013
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Location: Malvern, UK

PostPosted: Thu Jan 18, 2018 3:44 am    Post subject: Reply with quote

Another lovely set - all fascinating. Thanks.

Ref: your comment about the Clearwing butterflies. I photographed one at a butterfly house (just handheld macro) and assumed the transparency was due to the absence of scales. Are the wings actually covered in scales like a normal butterfly wings? Even more amazing if they are Shocked

Edit: just read the paper you linked (assumed it would be behind a paywall at first, so I didn't follow it). The transparent regions just contain "nano hairs" not scales with "nano-pillars" in the membrane to aid transparency of the membrane over a wide viewing angle. That makes more sense (and still pretty amazing).


Last edited by Beatsy on Thu Jan 18, 2018 7:11 am; edited 1 time in total
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MarkSturtevant



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PostPosted: Thu Jan 18, 2018 6:37 am    Post subject: Reply with quote

Beautiful! I did not know that clearwings had scales.
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Ken Ramos



Joined: 27 Jul 2006
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PostPosted: Thu Jan 18, 2018 4:14 pm    Post subject: Reply with quote

Since I prowl around in lichens quite a bit, I really enjoyed the lichen katydid, though all of them were quite interesting. There are numerous things that hide out in lichens, most are quite small however, spiders are quite common, even large ones.
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razashaikh



Joined: 14 Nov 2017
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PostPosted: Thu Jan 18, 2018 9:00 pm    Post subject: Reply with quote

Stunning set of pictures.
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ChrisR
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Joined: 14 Mar 2009
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Location: Near London, UK

PostPosted: Fri Jan 19, 2018 3:10 am    Post subject: Reply with quote

Always a pleasure to see Paul's images.
The anti-reflection wing is fascinating. I wonder if those half-micron columns will become a resolution test target Wink
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pbertner



Joined: 02 Mar 2010
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PostPosted: Fri Jan 19, 2018 10:52 pm    Post subject: Reply with quote

Thanks everyone, much appreciated.

Beatsy - thanks for the correction.

Ken - fortunately in the tropics the lichens provide a nice haven for a variety of even quite large insects.








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Beatsy



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PostPosted: Sat Jan 20, 2018 2:15 am    Post subject: Reply with quote

Wow! Those critters in the latest lichen shots are very well hidden. At the point of writing this, I still haven't found what's hiding in the second shot. Brilliant!
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Ken Ramos



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PostPosted: Sat Jan 20, 2018 10:01 am    Post subject: Reply with quote

If you're an insect and you can manage it, what better place to camouflage yourself and to hide but in a lichen. I have one spider here, about the size of a half dollar coin, that does a pretty good job in hiding itself among the lichens. You would not notice it until you had placed your hand on it. Somewhat aggressive but will turn and run if you persist in prodding at it.
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Smokedaddy



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PostPosted: Sat Jan 20, 2018 10:07 am    Post subject: Reply with quote

Excellent!
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