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

Grazing livestock move by Lévy walks: Implications for soil health and environment

Alejandro Romero‐Ruiz, M. Jordana Rivero, Alice E. Milne, Sarah Morgan, Paulo Méo-Filho, Simon Pulley, Carmen Segura, Paul Harris, Michael R. F. Lee, K. Coleman, L. M. Cardenas, A. P. Whitmore

Journal of Environmental Management · 2023

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Summary

This study demonstrates that grazing livestock follow Lévy walk movement patterns, which can be modelled using appropriate probability density functions. The authors developed a novel 'Moovement model' coupling animal movement simulation with soil structure dynamics, revealing that rotational grazing produced similar soil disturbance to conventional grazing despite higher stocking densities. The work provides a quantitative framework for predicting spatially-explicit changes in soil properties under different grazing management regimes, potentially enabling optimisation of grazing strategies for soil health outcomes.

UK applicability

The findings are relevant to UK grassland management given the prevalence of both rotational and conventional grazing systems. However, the geographic origin of the study is unclear from available metadata, and applicability to UK soil types, climate conditions and vegetation communities would require assessment of study location and local validation.

Key measures

GPS-derived livestock movement data, soil bulk density, Lévy walk probability distributions, spatially-explicit soil property predictions

Outcomes reported

The study characterised daily and seasonal grazing patterns using GPS data from conventionally and rotationally grazed pastures, and developed a 'Moovement model' that links livestock movement patterns with soil structure dynamics. Post-grazing bulk densities predicted by the model were validated against field measurements across both grazing strategies.

Theme
Farming systems, soils & land use
Subject
Grassland & pasture systems
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
System type
Pasture-based livestock
DOI
10.1016/j.jenvman.2023.118835
Catalogue ID
BFmoc27pk5-j4m3ck

Topic tags

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