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Volumn 10, Issue , 2015, Pages

Effects of rubber cultivation on biodiversity in the Mekong Region

Author keywords

Forest loss; Intercropping; Land use change; Monoculture; Reforestation; Rubber dominated landscape; Species conservation

Indexed keywords


EID: 85013959630     PISSN: None     EISSN: 17498848     Source Type: Journal    
DOI: 10.1079/PAVSNNR201510044     Document Type: Article
Times cited : (20)

References (61)
  • 2
    • 85013947222 scopus 로고    scopus 로고
    • World Wildlife Fund for Nature (WWF) Available from: URL
    • Magical Mekong: New species discoveries 2014. World Wildlife Fund for Nature (WWF) 2015. Available from: URL: http://www. wwf. de/fileadmin/fm-wwf/Publikationen-PDF/Magical-Mekong-New-Species-Discoveries-2014. pdf
    • (2015) Magical Mekong: New Species Discoveries 2014
  • 6
    • 34249732710 scopus 로고    scopus 로고
    • Demand for rubber is causing the loss of high diversity rain forest in SW China
    • Li H, Aide TM, Ma Y, Liu W, Cao M. Demand for rubber is causing the loss of high diversity rain forest in SW China. Biodiversity and Conservation 2007;16:1731-45.
    • (2007) Biodiversity and Conservation , vol.16 , pp. 1731-1745
    • Li, H.1    Aide, T.M.2    Ma, Y.3    Liu, W.4    Cao, M.5
  • 7
    • 84889085659 scopus 로고    scopus 로고
    • Landscape transformation through the use of ecological and socioeconomic indicators in Xishuangbanna, Southwest China, Mekong region
    • Xu J, Grumbine RE, Beckschä fer P. Landscape transformation through the use of ecological and socioeconomic indicators in Xishuangbanna, Southwest China, Mekong region. Ecological Indicators 2014;36:749-56.
    • (2014) Ecological Indicators , vol.36 , pp. 749-756
    • Xu, J.1    Grumbine, R.E.2    Beckschäfer, P.3
  • 8
    • 53649083931 scopus 로고    scopus 로고
    • Impact of land use and land cover change on ecosystem services in Menglun, Xishuangbanna, Southwest China
    • Hu H, Liu W, Cao M. Impact of land use and land cover change on ecosystem services in Menglun, Xishuangbanna, Southwest China. Environmental Monitoring and Assessment 2008;146:147-56.
    • (2008) Environmental Monitoring and Assessment , vol.146 , pp. 147-156
    • Hu, H.1    Liu, W.2    Cao, M.3
  • 9
    • 0003698987 scopus 로고    scopus 로고
    • Food and Agriculture Organization, Statistical Division (FAOSTAT) Available from: URL
    • Food and Agriculture Organization, Statistical Division (FAOSTAT). FAO Statistical Databases 2013. Available from: URL: http://faostat. fao. org/
    • (2013) FAO Statistical Databases
  • 13
    • 84940436312 scopus 로고    scopus 로고
    • Increasing demand for natural rubber necessitates a robust sustainability initiative to mitigate impacts on tropical biodiversity
    • Available from: URL
    • Warren-Thomas E, Dolman PM, Edwards DP. Increasing demand for natural rubber necessitates a robust sustainability initiative to mitigate impacts on tropical biodiversity. Conservation Letters, 2015. Available from: URL: http://onlinelibrary. wiley. com/doi/10. 1111/conl. 12170/pdf
    • (2015) Conservation Letters
    • Warren-Thomas, E.1    Dolman, P.M.2    Edwards, D.P.3
  • 14
    • 34247356437 scopus 로고    scopus 로고
    • Forest vegetation of south China
    • Zhu H. Forest vegetation of south China. Forestry studies in China 2006;8:1-58.
    • (2006) Forestry Studies in China , vol.8 , pp. 1-58
    • Zhu, H.1
  • 15
    • 58149474382 scopus 로고    scopus 로고
    • The tropical flora of southern Yunnan, China, and its biogeographic affinities
    • Zhu H. The tropical flora of southern Yunnan, China, and its biogeographic affinities. Annals of the Missouri Botanical Garden 2008;95:661-80.
    • (2008) Annals of the Missouri Botanical Garden , vol.95 , pp. 661-680
    • Zhu, H.1
  • 17
    • 84870225444 scopus 로고    scopus 로고
    • Bird conservation in extremely small tropical rainforest patches in southwest China
    • Chang X, Quan RC, Wang L. Bird conservation in extremely small tropical rainforest patches in southwest China. Biological Conservation 2013;158:188-95.
    • (2013) Biological Conservation , vol.158 , pp. 188-195
    • Chang, X.1    Quan, R.C.2    Wang, L.3
  • 18
    • 2142711260 scopus 로고    scopus 로고
    • Tropical rainforest fragmentation and its ecological and species diversity changes in southern Yunnan
    • Zhu H, Xu ZF, Wang H, Li BG. Tropical rainforest fragmentation and its ecological and species diversity changes in southern Yunnan. Biodiversity and Conservation 2004;13:1355-72.
    • (2004) Biodiversity and Conservation , vol.13 , pp. 1355-1372
    • Zhu, H.1    Xu, Z.F.2    Wang, H.3    Li, B.G.4
  • 19
    • 84862785249 scopus 로고    scopus 로고
    • Diversity of medicinal and food plants as non-timber forest products in Naban River Watershed National Nature Reserve (China): Implications for livelihood improvement and biodiversity conservation
    • Ghorbani A, Langenberger G, Liu J, Wehner S, Sauerborn J. Diversity of medicinal and food plants as non-timber forest products in Naban River Watershed National Nature Reserve (China): implications for livelihood improvement and biodiversity conservation. Economic Botany 2012;66:178-91.
    • (2012) Economic Botany , vol.66 , pp. 178-191
    • Ghorbani, A.1    Langenberger, G.2    Liu, J.3    Wehner, S.4    Sauerborn, J.5
  • 20
    • 14244257886 scopus 로고    scopus 로고
    • Wild vegetable resources and market survey in Xishuangbanna, southwest China
    • Xu YK, Tao GD, Liu HM, Yan KL, Dao XS. Wild vegetable resources and market survey in Xishuangbanna, southwest China. Economic Botany 2004;58:647-67.
    • (2004) Economic Botany , vol.58 , pp. 647-667
    • Xu, Y.K.1    Tao, G.D.2    Liu, H.M.3    Yan, K.L.4    Dao, X.S.5
  • 21
    • 31544459907 scopus 로고    scopus 로고
    • Integrating sacred knowledge for conservation: Cultures and landscapes in southwest China
    • Available from: URL
    • Xu JE, Ma T, Tashi D, Fu Y, Lu Z, Melick D. Integrating sacred knowledge for conservation: cultures and landscapes in southwest China. Ecology and Society 2005;10:7. Available from: URL: http://www. ecologyandsociety. org/vol10/iss2/art7/
    • (2005) Ecology and Society , vol.10 , pp. 7
    • Xu, J.E.1    Ma, T.2    Tashi, D.3    Fu, Y.4    Lu, Z.5    Melick, D.6
  • 23
    • 33750700847 scopus 로고    scopus 로고
    • Environmental and socioeconomic impacts of increasing rubber plantations in Menglun Township, Southwest China
    • Liu W, Hu H, Ma Y, Li H. Environmental and socioeconomic impacts of increasing rubber plantations in Menglun Township, Southwest China. Mountain Research and Development 2006;26:245-53.
    • (2006) Mountain Research and Development , vol.26 , pp. 245-253
    • Liu, W.1    Hu, H.2    Ma, Y.3    Li, H.4
  • 24
    • 50249095065 scopus 로고    scopus 로고
    • Economics of smallholder rubber expansion in Northern Laos
    • Manivong V, Cramb RA. Economics of smallholder rubber expansion in Northern Laos. Agroforestry Systems 2008;74:113-25.
    • (2008) Agroforestry Systems , vol.74 , pp. 113-125
    • Manivong, V.1    Cramb, R.A.2
  • 25
    • 77953681764 scopus 로고    scopus 로고
    • Agrobiodiversity loss and livelihood vulnerability as a consequence of converting from subsistence farming systems to commercial plantation-dominated systems in Xishuangbanna, Yunnan, China: A household level analysis
    • Fu Y, Chen J, Guo H, Hu H, Chen A, Cui J. Agrobiodiversity loss and livelihood vulnerability as a consequence of converting from subsistence farming systems to commercial plantation-dominated systems in Xishuangbanna, Yunnan, China: a household level analysis. Land Degradation and Development 2010;21:274-84.
    • (2010) Land Degradation and Development , vol.21 , pp. 274-284
    • Fu, Y.1    Chen, J.2    Guo, H.3    Hu, H.4    Chen, A.5    Cui, J.6
  • 26
    • 26244465520 scopus 로고    scopus 로고
    • Land-use and land-cover change and farmer vulnerability in Xishuangbanna prefecture in Southwestern China
    • Xu J, Fox J, Vogler JB, Peifang Z, Yongshou F, Lixin Y, et al. Land-use and land-cover change and farmer vulnerability in Xishuangbanna prefecture in Southwestern China. Environmental Management 2005;36:404-13.
    • (2005) Environmental Management , vol.36 , pp. 404-413
    • Xu, J.1    Fox, J.2    Vogler, J.B.3    Peifang, Z.4    Yongshou, F.5    Lixin, Y.6
  • 27
    • 84883811655 scopus 로고    scopus 로고
    • Slipping through the cracks: Rubber plantation is unsuitable breeding habitat for frogs in Xishuangbanna, China
    • Behm JE, Yang X, Chen J. Slipping through the cracks: rubber plantation is unsuitable breeding habitat for frogs in Xishuangbanna, China. PLoS ONE 2013;8:e73688.
    • (2013) PLoS ONE , vol.8 , pp. e73688
    • Behm, J.E.1    Yang, X.2    Chen, J.3
  • 28
    • 79956114018 scopus 로고    scopus 로고
    • The impact of rubber plantations on the diversity and activity of understory insectivorous bats in southern Thailand
    • Phommexay P, Satasook C, Bates P, Pearch M, Bumrungsri S. The impact of rubber plantations on the diversity and activity of understory insectivorous bats in southern Thailand. Biodiversity and Conservation 2011;20:1441-56.
    • (2011) Biodiversity and Conservation , vol.20 , pp. 1441-1456
    • Phommexay, P.1    Satasook, C.2    Bates, P.3    Pearch, M.4    Bumrungsri, S.5
  • 29
    • 33646269493 scopus 로고    scopus 로고
    • Changes in bird communities following conversion of lowland forest to oil palm and rubber plantations in southern Thailand
    • Aratrakorn S, Thunhikorn S, Donald PF. Changes in bird communities following conversion of lowland forest to oil palm and rubber plantations in southern Thailand. Bird Conservation International 2006;16:71-82.
    • (2006) Bird Conservation International , vol.16 , pp. 71-82
    • Aratrakorn, S.1    Thunhikorn, S.2    Donald, P.F.3
  • 30
    • 84884282278 scopus 로고    scopus 로고
    • Species richness and guild composition in rubber plantations compared to secondary forest on Hainan Island, China
    • Li S, Zou F, Zhang Q, Sheldon FH. Species richness and guild composition in rubber plantations compared to secondary forest on Hainan Island, China. Agroforestry Systems 2013;87:1117-28.
    • (2013) Agroforestry Systems , vol.87 , pp. 1117-1128
    • Li, S.1    Zou, F.2    Zhang, Q.3    Sheldon, F.H.4
  • 32
    • 84920140438 scopus 로고    scopus 로고
    • Spider diversity in canopies of Xishuangbanna rainforest (China) indicates an alarming juggernaut effect of rubber plantations
    • Zheng G, Li S, Yang X. Spider diversity in canopies of Xishuangbanna rainforest (China) indicates an alarming juggernaut effect of rubber plantations. Forest Ecology and Management 2015;338:200-7.
    • (2015) Forest Ecology and Management , vol.338 , pp. 200-207
    • Zheng, G.1    Li, S.2    Yang, X.3
  • 33
    • 84860991953 scopus 로고    scopus 로고
    • Impact of rubber plantation on carabid beetle communities and species distribution in a changing tropical landscape (southern Yunnan, China)
    • Meng LZ, Martin K, Weigel A, Liu JX. Impact of rubber plantation on carabid beetle communities and species distribution in a changing tropical landscape (southern Yunnan, China). Journal of Insect Conservation 2012;16:423-32.
    • (2012) Journal of Insect Conservation , vol.16 , pp. 423-432
    • Meng, L.Z.1    Martin, K.2    Weigel, A.3    Liu, J.X.4
  • 34
    • 84884358221 scopus 로고    scopus 로고
    • Tree diversity mediates the distribution of Longhorn beetles (Coleoptera: Cerambycidae) in a changing tropical landscape (Southern Yunnan, SW China)
    • Meng LZ, Martin K, Weigel A, Yang XD. Tree diversity mediates the distribution of Longhorn beetles (Coleoptera: Cerambycidae) in a changing tropical landscape (Southern Yunnan, SW China). PLoS ONE 2013;8:e75481.
    • (2013) PLoS ONE , vol.8 , pp. e75481
    • Meng, L.Z.1    Martin, K.2    Weigel, A.3    Yang, X.D.4
  • 35
    • 84870235156 scopus 로고    scopus 로고
    • Contrasting responses of hoverflies and wild bees to habitat structure and land use change in a tropical landscape (southern Yunnan, SW China)
    • Meng LZ, Martin K, Liu JX, Burger F, Chen J. Contrasting responses of hoverflies and wild bees to habitat structure and land use change in a tropical landscape (southern Yunnan, SW China). Insect Science 2012;19:666-76.
    • (2012) Insect Science , vol.19 , pp. 666-676
    • Meng, L.Z.1    Martin, K.2    Liu, J.X.3    Burger, F.4    Chen, J.5
  • 39
    • 84931372153 scopus 로고    scopus 로고
    • Between land sharing and land sparing-what role remains for forest management and conservation?
    • Paul C, Knoke T. Between land sharing and land sparing-what role remains for forest management and conservation? International Forest Review 2015;17:210-30.
    • (2015) International Forest Review , vol.17 , pp. 210-230
    • Paul, C.1    Knoke, T.2
  • 40
    • 84921515778 scopus 로고    scopus 로고
    • Quantifying the impacts of ecological restoration on biodiversity and ecosystem services in agroecosystems: A global metaanalysis
    • Barral MP, Benayas JMR, Meli P, Maceira NO. Quantifying the impacts of ecological restoration on biodiversity and ecosystem services in agroecosystems: a global metaanalysis. Agriculture, Ecosystems and Environment 2015;202:223-31.
    • (2015) Agriculture, Ecosystems and Environment , vol.202 , pp. 223-231
    • Barral, M.P.1    Benayas, J.M.R.2    Meli, P.3    MacEira, N.O.4
  • 42
    • 84856932040 scopus 로고    scopus 로고
    • Recent evolution of rubber-based farming systems in southern Thailand
    • Somboonsuke B. Recent evolution of rubber-based farming systems in southern Thailand. Kasetsart Journal Social Science 2001;22:61-74.
    • (2001) Kasetsart Journal Social Science , vol.22 , pp. 61-74
    • Somboonsuke, B.1
  • 43
    • 84864107979 scopus 로고    scopus 로고
    • Role of livelihood capital in shaping the farming strategies and outcomes of smallholder rubber producers in southern Thailand
    • Longpichai O, Perret SR, Shivakoti GP. Role of livelihood capital in shaping the farming strategies and outcomes of smallholder rubber producers in southern Thailand. Outlook on Agriculture 2012;41:117-24.
    • (2012) Outlook on Agriculture , vol.41 , pp. 117-124
    • Longpichai, O.1    Perret, S.R.2    Shivakoti, G.P.3
  • 46
    • 80055015145 scopus 로고    scopus 로고
    • Primary forests are irreplaceable for sustaining tropical biodiversity
    • Gibson L, Lee TM, Koh LP, Brook BW, Gardner TA, Barlow J, et al. Primary forests are irreplaceable for sustaining tropical biodiversity. Nature 2011;478:378-81.
    • (2011) Nature , vol.478 , pp. 378-381
    • Gibson, L.1    Lee, T.M.2    Koh, L.P.3    Brook, B.W.4    Gardner, T.A.5    Barlow, J.6
  • 47
    • 80052467013 scopus 로고    scopus 로고
    • Reconciling food production and biodiversity conservation: Land sharing and land sparing compared
    • Phalan B, Onial M, Balmford A, Green RE. Reconciling food production and biodiversity conservation: land sharing and land sparing compared. Science 2011;333:1289-91.
    • (2011) Science , vol.333 , pp. 1289-1291
    • Phalan, B.1    Onial, M.2    Balmford, A.3    Green, R.E.4
  • 48
    • 84907983204 scopus 로고    scopus 로고
    • The expansion of smallholder rubber farming in Xishuangbanna, China: A case study of two Dai villages
    • Zhang L, Kono Y, Kobayashi S, Hu H, Zhou R, Qin Y. The expansion of smallholder rubber farming in Xishuangbanna, China: a case study of two Dai villages. Land Use Policy 2015;42:628-34.
    • (2015) Land Use Policy , vol.42 , pp. 628-634
    • Zhang, L.1    Kono, Y.2    Kobayashi, S.3    Hu, H.4    Zhou, R.5    Qin, Y.6
  • 49
    • 84894026481 scopus 로고    scopus 로고
    • Can carbon-trading schemes help to protect China's most diverse forest ecosystems? A case study from Xishuangbanna, Yunnan
    • Yi ZF, Wong G, Cannon CH, Xu J, Beckschä fer P, Swetnam RD. Can carbon-trading schemes help to protect China's most diverse forest ecosystems? A case study from Xishuangbanna, Yunnan. Land Use Policy 2014;38:646-56.
    • (2014) Land Use Policy , vol.38 , pp. 646-656
    • Yi, Z.F.1    Wong, G.2    Cannon, C.H.3    Xu, J.4    Beckschäfer, P.5    Swetnam, R.D.6
  • 50
    • 84889081330 scopus 로고    scopus 로고
    • Developing indicators of economic value and biodiversity loss for rubber plantations in Xishuangbanna, southwest China: A case study from Menglun township
    • Yi ZF, Cannon CH, Chen J, Ye CX, Swetnam RD. Developing indicators of economic value and biodiversity loss for rubber plantations in Xishuangbanna, southwest China: a case study from Menglun township. Ecological Indicators 2014;36:788-97.
    • (2014) Ecological Indicators , vol.36 , pp. 788-797
    • Yi, Z.F.1    Cannon, C.H.2    Chen, J.3    Ye, C.X.4    Swetnam, R.D.5
  • 51
    • 35448959873 scopus 로고    scopus 로고
    • Regrowth forests on abandoned agricultural land: A review of their habitat values for recovering forest fauna
    • Bowen ME, McAlpine CA, House APN, Smith GF. Regrowth forests on abandoned agricultural land: a review of their habitat values for recovering forest fauna. Biological Conservation 2007;140:273-96.
    • (2007) Biological Conservation , vol.140 , pp. 273-296
    • Bowen, M.E.1    McAlpine, C.A.2    House, A.P.N.3    Smith, G.F.4
  • 52
    • 70350774386 scopus 로고    scopus 로고
    • The future of tropical species in secondary forests: A quantitative review
    • Dent DH, Wright SJ. The future of tropical species in secondary forests: a quantitative review. Biological Conservation 2009;142:2833-43.
    • (2009) Biological Conservation , vol.142 , pp. 2833-2843
    • Dent, D.H.1    Wright, S.J.2
  • 53
    • 84927758927 scopus 로고    scopus 로고
    • Assessing the effectiveness of payments for ecosystem services for diversifying rubber in Yunnan, China
    • Smajgl, A., Xu J, Egan S, Yi Z-F, Ward J, Su Y. Assessing the effectiveness of payments for ecosystem services for diversifying rubber in Yunnan, China. Environmental Modelling and Software 2015;69:187-95.
    • (2015) Environmental Modelling and Software , vol.69 , pp. 187-195
    • Smajgl, A.1    Xu, J.2    Egan, S.3    Yi, Z.-F.4    Ward, J.5    Su, Y.6
  • 54
    • 84938691043 scopus 로고    scopus 로고
    • Chinese urbanites and the preservation of rare species in remote parts of the country-The example of eaglewood
    • Ahlheim M, Frö r O, Langenberger G, Pelz S. Chinese urbanites and the preservation of rare species in remote parts of the country-the example of eaglewood. Environmental Economics 2014;4:32-43.
    • (2014) Environmental Economics , vol.4 , pp. 32-43
    • Ahlheim, M.1    Frör, O.2    Langenberger, G.3    Pelz, S.4
  • 55
    • 84928248275 scopus 로고    scopus 로고
    • Replacing rubber plantations by rain forest in Southwest China-Who would gain and how much?
    • Ahlheim M, Bö rger T, Frö r O. Replacing rubber plantations by rain forest in Southwest China-Who would gain and how much? Environmental Monitoring and Assessment 2015;187:3.
    • (2015) Environmental Monitoring and Assessment , vol.187 , pp. 3
    • Ahlheim, M.1    Börger, T.2    Frör, O.3
  • 56
    • 84907323796 scopus 로고    scopus 로고
    • Biodiversity in rubber agroforests, carbon emissions, and rural livelihoods: An agent-based model of land-use dynamics in lowland Sumatra
    • Villamor GB, Le QB, Djanibekov U, van Noordwijk M, Vlek VLG. Biodiversity in rubber agroforests, carbon emissions, and rural livelihoods: an agent-based model of land-use dynamics in lowland Sumatra. Environmental Modelling and Software 2014;61:151-65.
    • (2014) Environmental Modelling and Software , vol.61 , pp. 151-165
    • Villamor, G.B.1    Le, Q.B.2    Djanibekov, U.3    Van Noordwijk, M.4    Vlek, V.L.G.5
  • 57
    • 79960240767 scopus 로고    scopus 로고
    • Rubber agroforests in a changing landscape: Analysis of land use/cover trajectories in Bungo district Indonesia
    • Ekadinata A, Vincent G. Rubber agroforests in a changing landscape: analysis of land use/cover trajectories in Bungo district, Indonesia. Forests, Trees and Livelihoods 2011;20:3-14.
    • (2011) Forests Trees and Livelihoods , vol.20 , pp. 3-14
    • Ekadinata, A.1    Vincent, G.2
  • 58
    • 73849133874 scopus 로고    scopus 로고
    • Compensation and rewards for environmental services in the developing world: Framing pan-tropical analysis and comparison
    • Available from: URL
    • Swallow BM, Kallesoe MF, Iftikhar UA, van Noordwijk M, Bracer C, Scherr SJ, et al. Compensation and rewards for environmental services in the developing world: framing pan-tropical analysis and comparison. Ecology and Society 2009;14:26. Available from: URL: http://www. ecologyandsociety. org/vol14/iss2/art26/
    • (2009) Ecology and Society , vol.14 , pp. 26
    • Swallow, B.M.1    Kallesoe, M.F.2    Iftikhar, U.A.3    Van Noordwijk, M.4    Bracer, C.5    Scherr, S.J.6
  • 59
    • 84896689959 scopus 로고    scopus 로고
    • Gaming for smallholder participation in the design of more sustainable agricultural landscapes
    • Speelman EN, Garcia-Barrios LE, Groot JCJ, Tittonell P. Gaming for smallholder participation in the design of more sustainable agricultural landscapes. Agricultural Systems 2014;126:62-75.
    • (2014) Agricultural Systems , vol.126 , pp. 62-75
    • Speelman, E.N.1    Garcia-Barrios, L.E.2    Groot, J.C.J.3    Tittonell, P.4
  • 60
    • 84896698363 scopus 로고    scopus 로고
    • The environment, not space, dominantly structures the landscape patterns of the richness and composition of the tropical understory vegetation
    • Hu YH, Sheng DY, Xiang YZ, Yang ZJ, Xu DP, Zhang NN, et al. The environment, not space, dominantly structures the landscape patterns of the richness and composition of the tropical understory vegetation. PLoS ONE 2013;8:e81308.
    • (2013) PLoS ONE , vol.8 , pp. e81308
    • Hu, Y.H.1    Sheng, D.Y.2    Xiang, Y.Z.3    Yang, Z.J.4    Xu, D.P.5    Zhang, N.N.6
  • 61
    • 84949320379 scopus 로고    scopus 로고
    • A new weed management approach to improve soil health in a tropical plantation crop, rubber (Hevea brasiliensis)
    • Abraham J, Joseph P. A new weed management approach to improve soil health in a tropical plantation crop, rubber (Hevea brasiliensis). Experimental Agriculture 2016;52:36-50.
    • (2016) Experimental Agriculture , vol.52 , pp. 36-50
    • Abraham, J.1    Joseph, P.2


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