The activity and diversity of ground arthropods in an agroforestry system

Peng, Renkang K.; Sutton, S. L.

doi:10.30843/nzpp.1996.49.11439

Cited by 6 publications

(2 citation statements)

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“…Biodiversity e ects were mainly measured based on di erences in species richness. Five studies with seven e ect sizes used other measures, namely family richness [43,44], log-series [45,46] or Shannon index [47]. 5).…”

Section: Resultsmentioning

confidence: 99%

European agroforestry is no universal remedy for biodiversity: a time-cumulative meta-analysis

Mupepele

Keller

Dormann

2020

Preprint

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BackgroundAgroforestry is a production system combining trees with crops or livestock. It has the potential to increase biodiversity in relation to single-use systems, such as pastures or conventional agriculture, by providing a higher habitat heterogeneity. In a literature review and subsequent meta-analysis, we investigated the relationship between biodiversity and agroforestry and critically appraise the underlying evidence of the results.ResultsBiodiversity in agroforestry was higher than in conventional agriculture, but could not outcompete pastures, forests and abandoned agroforestry systems. There was no overall biodiversity benefit in agroforestry systems. Data were available for plants, birds, bats and arthropods. Arthropods and birds were the two taxonomic groups profiting from agroforestry systems. A time-cumulative meta-analysis shows that there was no general benefit of biodiversity at any point in the past besides in early 2015. Time-cumulative meta-analysis can unravel missing robustness of meta-analytical results if conclusions alternate between significant to non-significant summary effect sizes over time.ConclusionAgroforestry increases biodiversity only in silvoarable systems compared with conventional agriculture. But even this result is based on a small magnitude and single-study effect sizes were heterogeneous with sometimes opposing conclusions. The latter suggests the importance of other usually unmeasured variables, such as landscape parameters or land-use history, influencing biodiversity in agroforestry systems.

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Section: Resultsmentioning

confidence: 99%

European agroforestry is no universal remedy for biodiversity: a time-cumulative meta-analysis

Mupepele

Keller

Dormann

2020

Preprint

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“…Notably, only one study sampled arthropods directly on trees [ 26 ]. In addition, non-selective herbicide treatments prevented the growth of herbaceous flora in some cases [ 25 , 58 ]. Therefore, this meta-analysis most likely underestimates the positive effects of alley cropping systems on species diversity.…”

Section: Too Early For a Meta-analysis On Alley Cropping Agroforestry...mentioning

confidence: 99%

Research on agroforestry systems and biodiversity conservation: what can we conclude so far and what should we improve?

et al. 2022

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Through a meta-analysis, Mupepele et al. (BMC Ecol Evol 21:1–193, 2021) assessed the effects of European agroforestry systems on biodiversity, estimated by species richness or species diversity. They showed that the effects of silvoarable and silvopastoral systems depend on the systems they are compared to and the taxa studied. Further, they found that only silvoarable systems increased species richness or diversity, compared to cropland. The authors conclude that agroforestry systems have weak effects on biodiversity and that landscape context or land-use history are probably more important than the practice of agroforestry in itself. However, we draw attention to important shortcomings in this meta-analysis, which downplay the potential of agroforestry for biodiversity conservation in agricultural landscapes. We hope that the meta-analysis by Mupepele et al. (BMC Ecol Evol 21:1–193, 2021), and our comments, will contribute to improving the quality of research on agroforestry systems and biodiversity conservation.

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Agroforestry in Europe: a review of the disappearance of traditional systems and development of modern agroforestry practices, with emphasis on experiences in Germany

2012

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The activity and diversity of ground arthropods in an agroforestry system

Cited by 6 publications

References 10 publications

European agroforestry is no universal remedy for biodiversity: a time-cumulative meta-analysis

European agroforestry is no universal remedy for biodiversity: a time-cumulative meta-analysis

Research on agroforestry systems and biodiversity conservation: what can we conclude so far and what should we improve?

Agroforestry in Europe: a review of the disappearance of traditional systems and development of modern agroforestry practices, with emphasis on experiences in Germany

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