Mutualism effectiveness, the contribution of an interacting organism to its partner’s fitness, is defined as the number of immediate outcomes of the interactions (Quantity component) multiplied by the probability that an immediate outcome results in a new individual (Quality component). These components form a two-dimensional effectiveness landscape with each species’ location determined by its values of quantity (x-axis) and quality (y-axis). The current dataset includes information on the effectiveness of synzoochorous seed dispersal across the world. This might allow any user to make their own landscapes for the entire set of species or for specific subset of species.

Data collected from the literature. Dataset is a compilation of published studies.

Effectiveness components were converted to common currencies. QTC is the proportion of seeds dispersed by a given type of disperser during a given dispersal period. QLC is the proportion of dispersed seeds that were cached, either by scatter hoarding or larder hoarding. Information on taxonomy of the two partners, Country where the studies were performed and some traits of both plants and animals is also included.