Sustainable seed harvesting in wild plant populations

Author:

Bucharova AnnaORCID,Bossdorf OliverORCID,Scheepens J. F.,Salguero-Gómez Roberto

Abstract

AbstractSeed harvesting from wild plant populations is key for ecological restoration, but may threaten the persistence of source populations. Consequently, several countries have set guidelines limiting the proportions of harvestable seeds. Here, we use high-resolution data from 298 plant species to model the demographic consequences of seed harvesting. We find that the current guidelines only protect some species, but are insufficient or overly restrictive for others. We show that the maximum possible fraction of seed harvesting is strongly associated with harvesting frequency and generation time of the target species, ranging from 100% in long-lived species to <1% in the most annuals. Our results provide quantitative basis to guide seed harvesting legislation based on species’ generation time and harvesting regime.

Publisher

Cold Spring Harbor Laboratory

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