Dr Naomi van der Velden of University of Cumbria, UK; presentation for International Permaculture Conference 2015 (starts at 1:03:00 with introduction by Kévin Morel French Phd researcher for INRA - SAD-APT UMR INRA at Agroparistech).

Presentation entiteld "Biodiversity, Productivity and Scale in Resilient Food Production Systems"