Livestock exclusion reduces the spillover effects of pastoral agriculture on soil bacterial communities in adjacent forest fragments

Wu, Jieyun; Buckley, Hannah; Curry, Liz; Stevenson, Bryan; Schipper, Louis A.; Lear, Gavin

doi:10.1111/1462-2920.15473

Cited by 8 publications

(3 citation statements)

References 115 publications

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“…Overall, there is clear evidence that grazed pastures contain different microbial communities and that this effect can “spill over” into neighboring environments. 60 Fungal community composition differs between cattle-disturbed soils compared to non-disturbed soils, and richness and fungal biomass are higher in grazed soils. 61 Some of this increased richness is likely due to the introduction of cattle-associated fungi.…”

Section: Possible Impacts Of Regenerative Agricultural Practices On T...mentioning

confidence: 99%

The soil microbiome: An essential, but neglected, component of regenerative agroecosystems

Hermans

Lear²,

Case³

et al. 2023

iScience

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Section: Possible Impacts Of Regenerative Agricultural Practices On T...mentioning

confidence: 99%

The soil microbiome: An essential, but neglected, component of regenerative agroecosystems

Hermans

Lear²,

Case³

et al. 2023

iScience

Self Cite

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“…Further, they are responsible for fundamental processes, including nutrient cycling, decomposition and soil formation [34,53]. Soil physicochemical variables, which may be highly impacted by land use [14,30], are increasingly considered to be dominant determinants of microbial community composition, with different land uses and management types often having distinct microbial community profiles [24,65].…”

Section: Introductionmentioning

confidence: 99%

Land use modification causes slow, but predictable, change in soil microbial community composition and functional potential

Louisson

Hermans

Buckley

et al. 2023

Environmental Microbiome

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Background Bacterial communities are critical to ecosystem functioning and sensitive to their surrounding physiochemical environment. However, the impact of land use change on microbial communities remains understudied. We used 16S rRNA gene amplicon sequencing and shotgun metagenomics to assess soil microbial communities' taxonomic and functional responses to land use change. We compared data from long-term grassland, exotic forest and horticulture reference sites to data from sites that transitioned from (i) Grassland to exotic forest or horticulture and from (ii) Exotic forest to grassland. Results Community taxonomic and functional profiles of the transitional sites significantly differed from those within reference sites representing both their historic and current land uses (P < 0.001). The bacterial communities in sites that transitioned more recently were compositionally more similar to those representing their historic land uses. In contrast, the composition of communities from sites exposed to older conversion events had shifted towards the compositions at reference sites representing their current land use. Conclusions Our study indicates that microbial communities respond in a somewhat predictable way after a land use conversion event by shifting from communities reflecting their former land use towards those reflecting their current land use. Our findings help us to better understand the legacy effects of land use change on soil microbial communities and implications for their role in soil health and ecosystem functioning. Understanding the responsiveness of microbial communities to environmental disturbances will aid us in incorporating biotic variables into soil health monitoring techniques in the future.

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“…Livestock grazing is a globally pervasive and pivotal land use practice that significantly influences plant, animal, and microbial community dynamics and their intricate interrelationships [32][33][34]. The positive or negative associations observed between endophytes and herbivores suggest facilitation or antagonism resulting from one or more direct or indirect mechanisms [35,36].…”

Section: Introductionmentioning

confidence: 99%

Contrasting Effects of Grazing in Shaping the Seasonal Trajectory of Foliar Fungal Endophyte Communities on Two Semiarid Grassland Species

Dong,

Jiang,

Duan

et al. 2023

JoF

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Fungal endophytes are harboured in the leaves of every individual plant host and contribute to plant health, leaf senescence, and early decomposition. In grasslands, fungal endophytes and their hosts often coexist with large herbivores. However, the influence of grazing by large herbivores on foliar fungal endophyte communities remains largely unexplored. We conducted a long-term (18 yr) grazing experiment to explore the effects of grazing on the community composition and diversity of the foliar fungal endophytes of two perennial grassland species (i.e., Artemisia capillaris and Stipa bungeana) across one growing season. Grazing significantly increased the mean fungal alpha diversity of A. capillaris in the early season. In contrast, grazing significantly reduced the mean fungal alpha diversity of endophytic fungi of S. bungeana in the late season. Grazing, growing season, and their interactions concurrently structured the community composition of the foliar fungal endophytes of both plant species. However, growing season consistently outperformed grazing and environmental factors in shaping the community composition and diversity of both plant species. Overall, our findings demonstrate that the foliar endophytic fungal community diversity and composition differed in response to grazing between A. capillaris and S. bungeana during one growing season. The focus on this difference will enhance our understanding of grazing’s impact on ecological systems and improve land management practices in grazing regions. This variation in the effects of leaf nutrients and plant community characteristics on foliar endophytic fungal community diversity and composition may have a pronounced impact on plant health and plant–fungal interactions.

show abstract

Livestock exclusion reduces the spillover effects of pastoral agriculture on soil bacterial communities in adjacent forest fragments

Cited by 8 publications

References 115 publications

The soil microbiome: An essential, but neglected, component of regenerative agroecosystems

The soil microbiome: An essential, but neglected, component of regenerative agroecosystems

Land use modification causes slow, but predictable, change in soil microbial community composition and functional potential

Contrasting Effects of Grazing in Shaping the Seasonal Trajectory of Foliar Fungal Endophyte Communities on Two Semiarid Grassland Species

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