Author Tjoa, Aiyen

1 to 20 of 31 Items
  • 2010 | Journal Article
    ​ ​Effects of an experimental drought on the functioning of a cacao agroforestry system, Sulawesi, Indonesia​
    Schwendenmann, L. ; Veldkamp, E. ; Moser, G. ; Hölscher, D. ; Köhler, M. ; Clough, Y.   & Anas, I. et al.​ (2010) 
    Global Change Biology, 16(5) pp. 1515​-1530​.​ DOI: https://doi.org/10.1111/j.1365-2486.2009.02034.x 
    ​Details  DOI 
  • 2015 | Journal Article | Research Paper | 
    ​ ​Soil fertility controls soil–atmosphere carbon dioxide and methane fluxes in a tropical landscape converted from lowland forest to rubber and oil palm plantations​
    Hassler, E. ; Corre, M. D. ; Tjoa, A.; Damris, M. ; Utami, S. R. & Veldkamp, E. ​ (2015) 
    Biogeosciences, 12(19) pp. 5831​-5852​.​ DOI: https://doi.org/10.5194/bg-12-5831-2015 
    ​Details  DOI 
  • 2015 | Journal Article | Research Paper | 
    ​ ​Soil Nitrogen-Cycling Responses to Conversion of Lowland Forests to Oil Palm and Rubber Plantations in Sumatra, Indonesia​
    Allen, K. ; Corre, M. D. ; Tjoa, A. & Veldkamp, E. ​ (2015) 
    PLoS One, 10(7) art. e0133325​.​ DOI: https://doi.org/10.1371/journal.pone.0133325 
    ​Details  DOI  PMID  PMC 
  • 2016 | Journal Article
    ​ ​How ants, birds and bats affect crop yield along shade gradients in tropical cacao agroforestry​
    Gras, P.; Tscharntke, T. ; Maas, B. ; Tjoa, A.; Hafsah, A. & Clough, Y. ​ (2016) 
    Journal of Applied Ecology, 53(3) pp. 953​-963​.​ DOI: https://doi.org/10.1111/1365-2664.12625 
    ​Details  DOI 
  • 2016 | Journal Article | Research Paper | 
    ​ ​Cacao Cultivation under Diverse Shade Tree Cover Allows High Carbon Storage and Sequestration without Yield Losses​
    Abou Rajab, Y. ; Leuschner, C. ; Barus, H.; Tjoa, A. & Hertel, D. ​ (2016) 
    PLoS One, 11(2) art. e0149949​.​ DOI: https://doi.org/10.1371/journal.pone.0149949 
    ​Details  DOI 
  • 2016 | Journal Article | Research Paper | 
    ​ ​Land-use choices follow profitability at the expense of ecological functions in Indonesian smallholder landscapes​
    Clough, Y. ; Krishna, V. V. ; Corre, M. D. ; Darras, K. ; Denmead, L. H. ; Meijide, A.   & Moser, S. et al.​ (2016) 
    Nature Communications, 7 art. 13137​.​ DOI: https://doi.org/10.1038/ncomms13137 
    ​Details  DOI 
  • 2016 | Journal Article | Research Paper
    ​ ​Ecological and socio-economic functions across tropical land use systems after rainforest conversion​
    Drescher, J. ; Rembold, K. ; Allen, K. ; Beckschäfer, P. ; Buchori, D. ; Clough, Y.   & Faust, H.  et al.​ (2016) 
    Philosophical Transactions of the Royal Society B: Biological Sciences, 371(1694) art. 20150275​.​ DOI: https://doi.org/10.1098/rstb.2015.0275 
    ​Details  DOI  PMID  PMC 
  • 2017 | Journal Article
    ​ ​Diversity, endemism, and composition of tropical mountain forest communities in Sulawesi, Indonesia, in relation to elevation and soil properties​
    Brambach, F. ; Leuschner, C. ; Tjoa, A. & Culmsee, H.​ (2017) 
    Perspectives in Plant Ecology, Evolution and Systematics, 27 pp. 68​-79​.​ DOI: https://doi.org/10.1016/j.ppees.2017.06.003 
    ​Details  DOI 
  • 2018 | Journal Article | Research Paper
    ​ ​Effects of shade tree cover and diversity on root system structure and dynamics in cacao agroforests: ​The role of root competition and space partitioning​
    Rajab, Y. A. ; Hölscher, D. ; Leuschner, C. ; Barus, H.; Tjoa, A. & Hertel, D. ​ (2018) 
    Plant and Soil, 422(1-2) pp. 349​-369​.​ DOI: https://doi.org/10.1007/s11104-017-3456-x 
    ​Details  DOI 
  • 2018 | Monograph | 
    ​ ​Effects of Ecosystem Services Provided by Birds and Bats in Smallholder Cacao Plantations of Central Sulawesi: ​Summary of research results, management recommendations and farmer workshops from cacao agroforestry landscapes in Indonesia​ ​
    Maas, B. ; Tscharntke, T. ; Tjoa, A.; Saleh, S.; Edy, N.; Anshary, A.& Mahfudz, M. et al.​ (2018)
    Göttingen​: Universitätsverlag Göttingen. DOI: https://doi.org/10.17875/gup2018-1085 
    ​Details  DOI 
  • 2019 | Journal Article | Research Paper | 
    ​ ​Reducing Fertilizer and Avoiding Herbicides in Oil Palm Plantations - Ecological and Economic Valuations​
    Darras, K. F. A. ; Corre, M. D. ; Formaglio, G.; Tjoa, A.; Potapov, A. ; Brambach, F.   & Sibhatu, K. T.  et al.​ (2019) 
    Frontiers in Forests and Global Change, 2.​ DOI: https://doi.org/10.3389/ffgc.2019.00065 
    ​Details  DOI 
  • 2020 | Journal Article | Research Paper
    ​ ​Herbicide weed control increases nutrient leaching compared to mechanical weeding in a large-scale oil palm plantation​
    Formaglio, G.; Veldkamp, E. ; Duan, X.; Tjoa, A. & Corre, M. D. ​ (2020) 
    Biogeosciences, 17(21) pp. 5243​-5262​.​ DOI: https://doi.org/10.5194/bg-17-5243-2020 
    ​Details  DOI 
  • 2020 | Journal Article
    ​ ​Ecosystem-Based Tsunami Mitigation for Tropical Biodiversity Hotspots​
    Wanger, T. C. ; Ainun, N.; Brook, B. W.; Friess, D. A.; Oh, R. R.; Rusdin, A. & Smithers, S. et al.​ (2020) 
    Trends in Ecology & Evolution, 35(2) pp. 96​-100​.​ DOI: https://doi.org/10.1016/j.tree.2019.10.008 
    ​Details  DOI 
  • 2020 | Journal Article
    ​ ​Hand pollination, not pesticides or fertilizers, increases cocoa yields and farmer income​
    Toledo-Hernández, M. ; Tscharntke, T. ; Tjoa, A.; Anshary, A.; Cyio, B. & Wanger, T. C. ​ (2020) 
    Agriculture, Ecosystems & Environment, 304 pp. 107160​.​ DOI: https://doi.org/10.1016/j.agee.2020.107160 
    ​Details  DOI 
  • 2020 | Journal Article | Research Paper | 
    ​ ​Transformation of Lowland Rainforest into Oil-palm Plantations and use of Fire alter Topsoil and Litter Silicon Pools and Fluxes​
    von der Lühe, B. ; Pauli, L.; Greenshields, B.; Hughes, H. J.; Tjoa, A. & Sauer, D. ​ (2020) 
    Silicon, 13(12) pp. 4345​-4353​.​ DOI: https://doi.org/10.1007/s12633-020-00680-2 
    ​Details  DOI 
  • 2020 | Journal Article | 
    ​ ​Predominant colonization of Malesian mountains by Australian tree lineages​
    Brambach, F. ; Leuschner, C.; Tjoa, A. & Culmsee, H.​ (2020) 
    Journal of Biogeography, 47(2) pp. 1​-16​.​ DOI: https://doi.org/10.1111/jbi.13747 
    ​Details  DOI 
  • 2020 | Journal Article | Research Paper | 
    ​ ​Measured greenhouse gas budgets challenge emission savings from palm-oil biodiesel​
    Meijide Orive, A. ; de la Rua, C.; Guillaume, T. ; Röll, A. ; Hassler, E. ; Stiegler, C.   & Tjoa, A. et al.​ (2020) 
    Nature Communications, 11(1).​ DOI: https://doi.org/10.1038/s41467-020-14852-6 
    ​Details  DOI 
  • 2020 | Journal Article | Research Paper | 
    ​ ​Trade-offs between multifunctionality and profit in tropical smallholder landscapes​
    Grass, I. ; Kubitza, C.; Krishna, V. V. ; Corre, M. D. ; Mußhoff, O. ; Pütz, P.   & Drescher, J.  et al.​ (2020) 
    Nature Communications, 11(1) pp. 1186​.​ DOI: https://doi.org/10.1038/s41467-020-15013-5 
    ​Details  DOI  PMID  PMC 
  • 2021 | Journal Article
    ​ ​Landscape and farm-level management for conservation of potential pollinators in Indonesian cocoa agroforests​
    Toledo-Hernández, M. ; Tscharntke, T. ; Tjoa, A.; Anshary, A.; Cyio, B. & Wanger, T. C. ​ (2021) 
    Biological Conservation, 257 art. S0006320721001580​.​ DOI: https://doi.org/10.1016/j.biocon.2021.109106 
    ​Details  DOI 
  • 2021 | Journal Article | Research Paper | 
    ​ ​Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation​
    Formaglio, G.; Veldkamp, E. ; Damris, M. ; Tjoa, A. & Corre, M. D. ​ (2021) 
    Biogeochemistry, 154(1) pp. 63​-80​.​ DOI: https://doi.org/10.1007/s10533-021-00798-4 
    ​Details  DOI 

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