Sign in to follow this  
Chimaera

Darwin's carnivore experiment

Recommended Posts

Has anyone tried to replicate Darwin's classic experiment on the reason some plants are carnivores?

As far as I can tell he placed items that were carbon rich and nitrogen poor (bread, sugar water) on some leaves of sundew, and some nitrogen rich, carbon poor (meat, his urine) on others, and only the latter caused the leaves to close up showing they needed the nitrates. I tried to with D. capensis but the leaves did not noticeably respond in any case (and only slightly to insects). I assume he used one of the native species. I would like to replicate and photograph this for teaching and general interest.

Share this post


Link to post
Share on other sites

Darwin did his experiments on Drosera rotundifolia.

The respond will be greater and faster when temperatures will become warmer during spring and summer.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this