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Reciprocity and interaction effectiveness in generalised mutualisms among free-living species

View ORCID ProfileElena Quintero, View ORCID ProfileFrancisco Rodríguez-Sánchez, View ORCID ProfilePedro Jordano
doi: https://doi.org/10.1101/2022.03.23.485462
Elena Quintero
1Integrative Ecology Group, Estación Biológica de Doñana, EBD-CSIC, Av. Américo Vespucio 26, E-41092 Sevilla, Spain
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  • For correspondence: equintero@ebd.csic.es
Francisco Rodríguez-Sánchez
1Integrative Ecology Group, Estación Biológica de Doñana, EBD-CSIC, Av. Américo Vespucio 26, E-41092 Sevilla, Spain
2Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Av. Reina Mercedes, E-41012 Sevilla, Spain
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Pedro Jordano
1Integrative Ecology Group, Estación Biológica de Doñana, EBD-CSIC, Av. Américo Vespucio 26, E-41092 Sevilla, Spain
2Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Av. Reina Mercedes, E-41012 Sevilla, Spain
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ABSTRACT

Mutualistic interactions among free-living species generally involve weak links and highly asymmetric dependence among partners, yet our understanding of factors beyond their emergence is still limited. Using individual-based interactions of a super-generalist fleshy-fruited plant with its frugivore assemblage we estimate the Resource Provisioning Effectiveness (RPE) and Seed Dispersal Effectiveness (SDE) to assess the balance in the exchange of resources. Plants were highly dependent on a few super-generalist frugivore species, while these interacted with most individual plants, resulting in strong asymmetries in mutual dependence. Both RPE and SDE were mainly driven by interaction frequency. Despite highly asymmetric dependences, the strong reliance on quantity largely determined high reciprocity in rewards between partners (i.e., higher energy provided, more seedlings recruited), not obscured by minor variations in the quality of animal or plant service. We anticipate reciprocity will emerge in low-intimacy mutualisms where the mutualistic outcome largely relies upon interaction frequency.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • Authors’ contact details: Francisco Rodríguez-Sánchez: frodriguez.work{at}gmail.com, Pedro Jordano: jordano{at}ebd.csic.es

  • ↵* Both FRS and PJ are senior authors.

  • Data availability statement The data and code generated for this study are available in https://github.com/PJordano-Lab/MS_effectiveness and will be archived in a public repository before final publication.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted March 26, 2022.
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Reciprocity and interaction effectiveness in generalised mutualisms among free-living species
Elena Quintero, Francisco Rodríguez-Sánchez, Pedro Jordano
bioRxiv 2022.03.23.485462; doi: https://doi.org/10.1101/2022.03.23.485462
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Reciprocity and interaction effectiveness in generalised mutualisms among free-living species
Elena Quintero, Francisco Rodríguez-Sánchez, Pedro Jordano
bioRxiv 2022.03.23.485462; doi: https://doi.org/10.1101/2022.03.23.485462

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