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96 results for “Agroforestry”
Data from: Responses of aerial insectivorous bats to local and landscape-level features of coffee agroforestry systems in Western Ghats, India
Shade coffee has shown great promise in providing crucial habitats for biodiversity outside formal protected areas. Insectivorous bats have been understudied in coffee, although they may provide pest control services. We investigated the influence of local and landscape-level features of coffee farms on aerial insectivorous bats in Chikmagalur district in the Western Ghats biodiversity hotspot, India. Bats were monitored in 20 farm sites using ultrasound detectors, and the response of bat species richness and activity to changes in tree density, proportion of built-up area in the neighborhood, and distance of farm from forest areas quantified. We examined if models built to explain the species richness and activity could also predict them in nine additional sites. We detected nine phonic types/species in the study area. The quantified predictors had no effect on assemblage-level species richness and activity of bats. Responses of edge-space and cluttered-space forager guilds mirrored those of the overall assemblage, but some species vulnerable to forest conversion like *Rhinolophus beddomei* were detected rarely. Best models explained up to 20% and 15% variation in assemblage-level species richness and activity respectively, and were poor predictors of both response variables. We conclude that coffee farms in our study area offer an important commuting space for insectivorous bats across a gradient of shade management. Further research should include species-specific responses to management decisions for at-risk species and quantification of ecosystem services like natural pest control to inform biodiversity conservation initiatives in the Western Ghats coffee landscapes.
Data from: Simplification of shade tree diversity reduces nutrient cycling resilience in coffee agroforestry
1. Agroforestry systems are refuges for biodiversity and provide multiple ecosystem functions and services. Diverse multispecies shade tree canopies are increasingly replaced by monospecific shade, often dominated by non-native tree species. The loss of tree diversity and the nature of the dominating tree can have strong implications for ecosystem functions, e.g. nutrient cycling ultimately reducing crop production. 2. To understand direct and indirect impacts of shade trees on nutrient cycling and crop production, we studied coffee agroforestry systems in India along a gradient from native multispecies canopies to Grevillea robusta (Proteaceae) -dominated canopy cover. We identified 25 agroforests, across a broad rainfall and management gradient and assessed litter quantity and quality, decomposition, nutrient release, soil fertility and coffee nutrient limitations. 3. Increasing G. robusta dominance affected nutrient cycling predominantly by; (1) changing of litter phenology, (2) reducing phosphorus (P), potassium (K), magnesium (Mg), boron (B), and zinc (Zn) inputs via litterfall, decelerated litter decomposition and immobilization of P and Zn due to low quality litter, (3) reducing soil carbon (C) and micronutrients (especially sulphur (S), Mg and B). Coffee plants were deficient in several nutrients (nitrogen (N), calcium (Ca), manganese (Mn), Mg and S in organic and B in conventional management). (4) Overall G. robusta dominated agroforests were characterized by a reduction of P cycling due to low inputs, strong immobilization while decomposition and antagonistic effects on its release in litter mixtures with coffee. 4. Synthesis and applications. The conversion of shade cover in coffee agroforestry systems from diverse tree canopies to canopies dominated by Grevillea robusta (Proteaceae) reduces the inputs and cycling of several micro- and macronutrients. Soil fertility is therefore expected to decline in G. robusta dominated systems, with likely impacts on coffee production. These negative effects might increase under the longer dry periods projected by regional climate change scenarios due to the pronounced litter phenology of G. robusta. Maintaining diverse shade canopies can more effectively sustain micro- and macronutrients in a more seasonal climate.
Removing understory vegetation in oil palm agroforestry reduces ground-foraging ant abundance but not species richness
<p>Ants are known to provide valuable ecosystem services in agricultural landscapes, including oil palm plantations. Their communities are less diverse and more uneven in oil palm compared with forest, and this may increase their vulnerability to disturbance. This study quantifies ant communities in oil palm agroforestry and experimentally tests their robustness to a common-practice high-disturbance management intervention: removing understory vegetation.</p> <p>Fieldwork was based at the Biodiversity and Ecosystem Function in Tropical Agriculture (BEFTA) Understory Vegetation Project in Sumatra, Indonesia, where three treatments varying in their degree of understory vegetation management were established in 2014: (1) widespread herbicide was applied removing all understory vegetation (Reduced); (2) herbicide was applied to the harvesting paths and circles, and other vegetation was allowed to grow (Normal – control); (3) no herbicide was applied (Enhanced). We measured ground-foraging ant communities before and after the treatments were implemented, using pitfall traps over 324 trap-nights (a trap-night is one trap set for one night). We investigated how ant abundance, species richness, species evenness, beta diversity, and community composition differed between the treatments.</p> <p>We found 3507 ants across 68 species or morphospecies. Seven of these were highly abundant and accounted for 78% of individuals. Post-treatment ant abundance was lower in the reduced treatment (mean per plot: 84) than in the normal (159) and enhanced (131) treatments, which did not differ from each other. Species richness, species evenness, beta diversity and community composition were not affected by the vegetation treatments.</p> <p>We recommend that oil palm growers maintain understory vegetation in oil palm plantations to support ground-foraging ants. Though not tested here, this may also improve ant-mediated ecosystem services, such as pest control, seed dispersal, nutrient redistribution, and the maintenance of soil health. This study demonstrates that enhancing habitat complexity through management practices can support biodiversity in monocrop landscapes.</p>
Data set of studies and indicators on the impacts of crop diversification through coffee agroforestry.
<p>The dataset contains information about 215 papers that were included in the review study. </p>
Wolpert et al. 2022_Collaborative agroforestry_primary data
<p>The data set shows the primary data of the survey related to the publication of Wolpert et al (2022) Collaborative agroforestry to mitigate wildfires in Extremadura, Spain: land manager motivations and perceptions of outcomes, benefits, and policy needs.</p>
Beekeeping improves shea pollination and fruit set in West African Agroforestry parklands
<p>Shea (<em>Vitellaria paradoxa</em> C.F Gaertn) is a fruit tree of domestic and industrial importance in arid and semi-arid regions of Sub-Saharan Africa. Fruit set is largely dependent on insect pollination but recent studies have revealed a pollen deficit. Introduction of managed bees into orchards is an effective approach for enhanced pollination services in temperate climates. However, there is limited information to guide the adoption of this practice in shea agroforestry parklands.</p> <p>This study investigated the effect of managed honey bee colonies (<em>Apis mellifera</em>) on fruit yield in six shea parklands across three regions of Ghana.</p> <p>Tree proximity to the apiary had a detectable effect on fruit set within a 500 m range of the apiary. Proximity of shea trees to apiary was significantly related to number of immature fruit set but not number of mature fruits. Fruit weight and size were not significantly related to distance from apiary nor pollination treatment.</p> <p>This implies that the introduction of beekeeping has the potential to address shea pollination deficit at least within a 500 m range of the apiary. Further studies are needed to determine the optimal hive density per acreage of shea parkland to maximise pollination services.</p>
Soil improvement with syntropic agroforestry. Year 0, year 2 and after 3 years. (South Portugal - Mértola)
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Dataset: Effects of tree presence on forage yield and nutritive value in agroforestry livestock systems: a global systematic review
<p>Simplified information retrieved from the materials and methods of 131 selected articles.</p>
Supporting dataset for the article "Fostering Agroforestry - Lessons from Côte d'Ivoire"
<p>This dataset has been used to produce Figure 1 of the paper. The data come from the Cocoa4Future project for which 150 permanent plots have been set up throughout Côte d'Ivoire's cocoa production zone. From these 150 plots, we retained agroforestry plots only, i.e. plots were filtered to keep only those with a basal area of trees greater than 10m<sup>2</sup>.ha<sup>-1</sup>.</p> <p>MetaData</p> <p>plotID - unique identifier of the plot<br> clus - unique identifier of the cluster the plot belongs to<br> type - plot number within cluster<br> area - surface of the plot<br> BA_remnant - Basal area of all remnant trees (in m<sup>2</sup>)<br> BA_new - Basal area of all non-remnant trees (in m<sup>2</sup>)<br> BA - Total basal area<br> prop - % of the total basal area that is due to remnant trees</p>
Database on agroforestry dynamics and adoption, Betampona, Madagascar 2018
<p>SPSS Raw Database</p>
Data from: Forest-associated understorey birds persist in agroforestry orchards within tropical rubber and oil palm landscapes
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Data from: How ants, birds and bats affect crop yield along shade gradients in tropical cacao agroforestry
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Drought conditions alter litter decomposition and nutrient release of litter types in an agroforestry system of China
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Data from: Simplification of shade tree diversity reduces nutrient cycling resilience in coffee agroforestry
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Data from: Win-wins or trade-offs? Site and strategy determine carbon and local ecosystem service benefits for protection, restoration, and agroforestry
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Evaluating a trait-based approach to compare natural enemy and pest communities in agroforestry versus arable systems
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Data from: Agroforestry coffee soils increase the insect-suppressive potential offered by entomopathogenic fungi over full-sun soils: a case proposing a "bait-survival technique"
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Data from: Responses of aerial insectivorous bats to local and landscape-level features of coffee agroforestry systems in Western Ghats, India
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Beekeeping improves shea pollination and fruit set in West African Agroforestry parklands
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Removing understory vegetation in oil palm agroforestry reduces ground-foraging ant abundance but not species richness
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OpenNeuro
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