Agricultural biodiversity

What does this really mean? It refers to the different ways in which nature expresses itself on our planet. All the different animal and plant species we see every day are the result of biodiversity. Part of this great heritage is defined as agricultural biodiversity, that is the set of plant varieties and animal breeds that were once used in a given territory and characterized it because with them all the enogastronomic, landscape, cultural and historical traditions of that place and the people who lived it.
page biodiversity Rural 2018

FAO estimates that over the past century, three quarters of the genetic biodiversity of agricultural crops have disappeared, and currently the human nutrition depends only on a few species of plants. Many varieties and breeds are now extinct and lost forever but others have been preserved, thanks to the farmers, ranchers and custodians of biodiversity, people who know about the products and want to preserve this historical background.