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Pitcher plant in visible, UVR and UVF

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#1 Adrian

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Posted 10 January 2018 - 11:57

A lowland hybrid carnivorous Pitcher Plant (Nepenthes x Hookeriana) in visible light, UVR and UVF. Note the different patterning on the interior of the pitcher.

More research needed as to how the plant attracts it's insect prey. (? both UV and fluorescence in moonlight?)

Technical specs:
UVR: 105mm El Nikkor Lens, Full spectrum converted Nikon D300 camera, Baader U filter ("white balanced" using DIY PTFE scale), 2 x Metz 45 CT1 flashes with plastic window removed.
UVF: Nikon D800 with 105mm micro-Nikkor. Conoy LED UV torch. 20 seconds @ f/16

Attached Images

  • Attached Image: Nepenthes web comp.jpg


#2 Hornblende

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Posted 10 January 2018 - 12:11

Quote

More research needed as to how the plant attracts it's insect prey.
Isn't nectar doing most of the job?

#3 Andy Perrin

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Posted 10 January 2018 - 15:08

Great photos. I think we've seen a pitcher plant on here before - was that you also?

#4 Adrian

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Posted 10 January 2018 - 15:46

Yes, insects are probably attracted primarily by the nectar, but also there is evidence that the fluorescence of the rim also helps (probably in moonlight).
Yes Andy, the other pitcher plants were mine. I have been photographing them a lot over the last couple of years.

#5 Hornblende

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Posted 10 January 2018 - 18:42

Pitcher plants are amazing! I have a N. ventrata, N. mirabilis var. globosa and a N. ampullaria, I will make a multispectral set :)

#6 Andy Perrin

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Posted 10 January 2018 - 19:08

Whatever you do, whatever they offer you, don't feed the plants! /sings