Sustainable seed harvesting in wild plant populations

  • Seed 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.

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Author:Anna BucharovaORCiDGND, Oliver BossdorfORCiDGND, Johannes Fredericus ScheepensORCiDGND, Roberto Salguero-GómezORCiD
Parent Title (English):bioRxiv
Document Type:Preprint
Date of Publication (online):2023/01/16
Date of first Publication:2023/01/16
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/04/23
Page Number:37
Institutes:Biowissenschaften / Institut für Ökologie, Evolution und Diversität
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 58 Pflanzen (Botanik) / 580 Pflanzen (Botanik)
Licence (German):License LogoCreative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International