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

Boinot, Sébastien; Barkaoui, Karim; Mézière, Delphine; Lauri, Pierre‐Éric; Sarthou, Jean-Pierre; Alignier, Audrey

doi:10.1186/s12862-022-01977-z

Cited by 7 publications

(7 citation statements)

References 57 publications

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“…Recently, particular focus has been placed on managing model agroforestry practices that serve economic and ecological purposes (Boinot et al 2022). There have been several invasions by miners, fires, plantations, residential areas, and unchecked harvesting of forest products in forest areas.…”

Section: Resultsmentioning

confidence: 99%

Mangrove forest utilization policies reconceptualized with a view to improving the regional economy in Aceh Tamiang District, Indonesia

2023

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Abstract. Natsir M, Ulya Z, Fitriani R. 2022. Mangrove forest utilization policies reconceptualized with a view to improving the regional economy in Aceh Tamiang District, Indonesia. Biodiversitas 23: 6570-6578. One of the Aceh's (Indonesia) districts with mangrove forests is Aceh Tamiang District. Manyak Payeud, Bendahara, Seureuwey, and Banda Mulia are the four sub-district in the Aceh Tamiang region that have the most potential tourist sites. However, due to the widespread illegal logging of mangroves carried out by the community to suit their daily requirements, the preservation of mangrove forests in the four sub-districts above is seriously damaged. As a result of illegal logging, mangroves are becoming less common in Aceh Tamiang District. Therefore, a unique policy, which can incorporate both community needs and economic development, is needed to manage the mangroves of Aceh Taminga District. The expectation is that mangrove management will enable Aceh Tamiang District to develop tourist attractions in this study. The normative juridical research methodology with SWOT analysis was applied in this study to understand the potential of mangrove management in improving the regional Economy in Aceh Tamiang District. The findings of this study are based on a SWOT analysis of four subdistricts in Aceh Tamiang District. The result suggests that the notion of forestry policy can support both local community interests and regional economic development. Additionally, it can be carried out through the Village Qanun to raise community awareness of the need to maintain and manage mangroves to enable the implementation of regional plans. To harmonize the understanding of the significance of mangroves as one of the regional tourist destinations, institutional coordination between the Aceh Tamiang district government and the provincial and central governments can also be used to realize the development of Aceh Tamiang tourism policies.

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Section: Resultsmentioning

confidence: 99%

Mangrove forest utilization policies reconceptualized with a view to improving the regional economy in Aceh Tamiang District, Indonesia

2023

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“…Some definitions emphasize a mixture of trees with crops and/or animals on the same land and a combined production system [ 3 , 4 ], while others also talk about agroforestry if trees and hedges are grown only at the border of crop fields and pastures [ 5 ]. Boinot et al [ 2 ] especially argue for including hedges grown next to fields in the definition of agroforestry, which we did not cover with our meta-analysis. Today, hedges are generally not cultivated for wood production.…”

Section: Hedges and Agroforestrymentioning

confidence: 99%

“…Today, hedges are generally not cultivated for wood production. Even in the example cited by Boinot et al, the majority of farmers stated to plant hedges for conservation and cultural purposes [ 2 , 6 ]. Hedges offer habitat to different taxonomic groups and we would welcome a formal meta-analysis on the effect of hedges in different landscapes, in addition to existing reviews [ 7 – 9 ].…”

Section: Hedges and Agroforestrymentioning

confidence: 99%

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Fig. 1 Meta-analysis of a subset of studies from [ 1 ], excluding studies argued by [ 2 ] to have control locations too close to the treatment sites. Silvopasture was reduced by three effects sizes and silvoarable reduced from 17 to 11 effect sizes …”

Section: Control Site Selectionmentioning

confidence: 99%

“…In our recent meta-analysis [ 1 ], we have shown that agroforestry has no overall positive effect on biodiversity, but we found an effect of small magnitude comparing agroforestry with cropland. In a comment, Boinot et al [ 2 ] raised concerns about our definitions of agroforestry and biodiversity, the selection of the control sites used in our meta-analysis and the applicability of our results for conservation. We are grateful for stimulating a discussion about research quality in agroforestry and respond in the following to each of the points raised.…”

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confidence: 99%

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Reply to: “Research on agroforestry systems and biodiversity conservation: what can we conclude so far and what should we improve?” by Boinot et al. 2022

Mupepele

Dormann

2022

BMC Ecol Evo

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In our article ‘European agroforestry has no unequivocal effect on biodiversity: a time-cumulative meta-analysis’ (BMC Ecology and Evolution, 2021) we synthesize the effect of agroforestry on biodiversity. Boinot et al. (BMC Ecology and Evolution, 2022) criticise our approach arguing that our definitions of agroforestry and biodiversity are too narrow; that we use inappropriate control sites for primary studies lacking distance to the treatment sites; that there are too few studies for a meta-analysis in silvoarable systems; and that local practice should be emphasized. We agree on the importance of local practices and that more studies would improve the robustness of our meta-analytical results. However, our conclusions are robust to removing studies criticised for inappropriate controls. We also recognize the problem of different definitions of agroforestry and using species richness as sole proxy for biodiversity. We appreciate being given the opportunity to clarify our results and to trigger future discussions about definitions and the interpretation of results from meta-analysis.

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Development of the breeding bird community of a silvoarable agroforestry system with short rotation coppice strips over a 16-year period

Zitzmann,

Langhof

2023

Agroforest Syst

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Modern silvoarable agroforestry systems (AFS) with short rotation coppice strips (CS) are considered as a potential measure to increase structural diversity in agricultural landscapes and to promote biodiversity while simultaneously producing arable crops and woody biomass. However, studies investigating the actual potential of these novel land use systems to promote biodiversity are scarce. We therefore investigated the importance of a silvoarable AFS with different CS variants as habitat for breeding birds on an experimental site in northern Germany, which was studied several times over a 16-year period since its establishment. In addition, the habitat function and quality of CS was compared with hedgerows. The results show that establishing CS on arable land creates additional habitats for shrub and tree breeding species and thus increases species numbers and territory densities. Tree harvest resulted in a decrease in species numbers and densities. However, since Aspen rows (for timber production) or native woody species were retained during harvesting in some CS, suitable nesting opportunities for some species remained. A sharp decline in Skylark territories was observed within the open land of the AFS, from nine breeding pairs in the year after establishment (2009) to only two breeding pairs each in 2022 and 2023. Compared to CS, hedgerows were more species-rich and had much higher territory densities. We conclude that the integration of CS into croplands can promote some species of woody habitats, especially if measures such as the integration of trees of different heights or native woody species and sectional harvesting are implemented. However, CS still clearly lag behind hedgerows in terms of their habitat quality. Furthermore, the establishment of CS may have negative effects on threatened open land species like the Skylark. The requirements of these species should therefore be considered when planning AFS. Establishing AFS with CS could especially be an option in cleared, intensively used agricultural landscapes, where CS could represent a trade-off between the promotion of birds and agricultural production.

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

Cited by 7 publications

References 57 publications

Mangrove forest utilization policies reconceptualized with a view to improving the regional economy in Aceh Tamiang District, Indonesia

Mangrove forest utilization policies reconceptualized with a view to improving the regional economy in Aceh Tamiang District, Indonesia

Reply to: “Research on agroforestry systems and biodiversity conservation: what can we conclude so far and what should we improve?” by Boinot et al. 2022

Development of the breeding bird community of a silvoarable agroforestry system with short rotation coppice strips over a 16-year period

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