Here are the original data for the 27 food webs analysed in our paper:

Capocefalo, D., Pereira, J., Mazza, T., Jordán, F. 2018. Food web topology and nested keystone species complexes. Complexity, Article ID 1979214.

Everything is taken from the data repository of NCEAS @ Santa Barbara, CA, USA: https://www.nceas.ucsb.edu/interactionweb/resources.html

For the data, they deserve all the credits!

 The data:

aka a.txt (14533)
aka b.txt (6784)
ber.txt (12559)
black.txt (15223)
broad.txt (18143)
cant.txt (23902)
carpinteria.txt (34492)
cat.txt (4849)
cow1.txt (6784)
cow17.txt (10151)
demp au.txt (14876)
demp sp.txt (18913)
demp su.txt (23003)
german.txt (14876)
healy.txt (18526)
kyeb.txt (19304)
lilkye.txt (12244)
martins.txt (22153)
narr.txt (10151)
north.txt (12244)
powder.txt (12260)
stony.txt (25649)
sutton au.txt (13859)
sutton sp.txt (12559)
sutton su.txt (17018)
troy.txt (12244)
ven.txt (9589)