Gallai, Nicola; Salles, Jean-Michel; Settele, Josef; … - Département Sciences Sociales, Agriculture et … - 2009
.8, respectively. Vegetables and fruits were the leading crop categories in value of insect pollination with about €50 billion each …, followed by edible oil crops, stimulants, nuts and spices. The production value of a ton of the crop categories that do not … vulnerability ratio was calculated for each crop category at the regional and world scales as the ratio between the economic value …