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Post by lloyd on Jul 30, 2015 19:02:38 GMT -5
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Post by Dennis Z on Jul 30, 2015 19:12:53 GMT -5
Sorry lloyd, a bit late, I posted the same thing a few weeks ago. Check the threads in the nepenthes category. Good read though, thanks for sharing!
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Post by Dennis Z on Jul 30, 2015 19:15:34 GMT -5
Oops just noticed you added another article other than the bats! Fantastic! I shall share another scientific article on a drosera species this evening.
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Post by lloyd on Jul 30, 2015 19:21:37 GMT -5
I didn't follow the ultrasonic link you posted.
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Post by WillyCKH on Aug 5, 2015 18:17:47 GMT -5
So cool! Any idea if all Neps are UV reflective? Any one has UV lights to test this?
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Post by lloyd on Aug 5, 2015 19:06:13 GMT -5
Hi Guys, I have 4 types of UV bulbs. UVC, UVB, UV BLB and UV BL. The softest (longest wavelength) is the one used in the picture. This is the type of UV that won't even tan you and you might expect to find in light shade. The other harder UV lights didn't show any fluorescence. Under the UV BL, there were definite irregular yellow bands around the periostome and nowhere else, so it's reasonable to think they would guide an insect into the pitcher. This is a Nepenthes rafflesiana.
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Post by WillyCKH on Aug 5, 2015 20:31:43 GMT -5
WOAH!
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Post by Maiden on Aug 5, 2015 22:55:27 GMT -5
THIS is interesting. Very nice observation !
I will read more about this. Have you tried with heliamphora or cephalotus?
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Post by lloyd on Aug 5, 2015 23:16:34 GMT -5
I haven't tried any other plants but I can do some checking. I tried washing off the splotches and they just got brighter so I think it is part of the periostome and not nectar as someone on the ICPS suggested.
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Post by lloyd on Oct 14, 2015 13:37:01 GMT -5
I checked my plants out with the softest UV bulb and there wasn't a lot to report. U. reniniformis glowed somewhat and the hairs of H. tatei var. tatei were somewhat brighter. FDBW also glowed (yellow).
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Post by Maiden on Oct 14, 2015 14:24:43 GMT -5
In 1985, Joel etal study suggest that the uv guides, known to exist in Heliamphora, may enhance this attraction for certain insect groups. To me, at least on tatei, this(and other factors) makes heliamphora a true carnivorous plant genus. Not only protocarnivorous. Its pretty interesting Thanks for posting this sir, and thanks for the time you spend doing this. Francois
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Post by lloyd on Oct 14, 2015 20:47:39 GMT -5
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Post by Maiden on Oct 14, 2015 22:13:13 GMT -5
Great pictures Mr Gordon The inside part of the leaf is uv reflecting, while the outside is uv absorbing. Your pictures shown this very well. This difference in absorption produces a visible contrast that may make the entrance of the pitcher highly conspicious to insects against its background. Francois
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Post by lloyd on Oct 14, 2015 22:19:34 GMT -5
Great pictures Mr Gordon The inside part of the leaf is uv reflecting, while the outside is uv absorbing. Your pictures shown this very well. This difference in absorption produces a visible contrast that may make the entrance of the pitcher highly conspicious to insects against its background. Francois I braved the cold on my deck to get those pictures before the winter.
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Post by Maiden on Oct 15, 2015 12:19:52 GMT -5
Hehe
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