I'm looking for papers/research on insect floral & seed herbivory on alpine thistles. However, I'm having trouble finding any information. Do you have or know of any papers that quantify the loss of flowers and seeds to inflorescence-feeding insects on HIGH MOUNTAIN (alpine) thistle species (especially CIRSIUM, CARDUUS)? Or any papers on this topic on ANY Asteraceae of the high alpine mountains?

I would appreciate ANY help you can give me - reprints I've missed (pdf), or references I should seek, or any clues to who might be doing this type of work.

THANK YOU! Svata Louda