Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Transgenerational coexistence history attenuates negative direct interactions and strengthens facilitation

Anja Schmutz, Christian Schöb

Journal of Ecology · 2023

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Summary

This common garden experiment examined how prior coexistence history (co-adaptation) over three years influences both direct pairwise and indirect species interactions in crop mixtures. Co-adapted crop communities showed reduced negative direct interactions and enhanced facilitative effects, with indirect interactions playing a secondary role compared to direct effects. The findings suggest that evolutionary adaptation in intercropping systems may shift competitive dynamics towards more sustainable and productive diverse cropping arrangements.

UK applicability

The results are potentially relevant to UK intercropping and mixed farming systems, suggesting that long-term coexistence of crop species could improve productivity and reduce competition. However, the study does not specify UK geographic or climatic conditions, so applicability would depend on whether trial conditions matched UK growing environments.

Key measures

Net interaction intensity, direct interaction intensity, indirect interaction intensity, species interaction network structure (transitive vs. intransitive interactions)

Outcomes reported

The study measured net, direct and indirect interaction intensities among crop species in monocultures and 2–3 species mixtures, and examined how prior coexistence history (co-adaptation) influenced these interactions and species interaction network topology. Results demonstrated reduced negative direct interactions and enhanced facilitative effects in co-adapted diverse crop systems.

Theme
Farming systems, soils & land use
Subject
Agroforestry & intercropping
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
System type
Mixed farming
DOI
10.1111/1365-2745.14241
Catalogue ID
SNmov0gqm4-135np7

Topic tags

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