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Volumn 48, Issue 3, 2002, Pages 504-517

Competitive capacity of Quercus rubra L. planted in Arkansas' Boston Mountains

Author keywords

Competitive capacity; Dominance; Northern red oak; Probabilities; Shelterwood

Indexed keywords

HARVESTING; PLANTS (BOTANY); PROBABILITY; REGRESSION ANALYSIS; WEED CONTROL;

EID: 0036705863     PISSN: 0015749X     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (60)

References (61)
  • 1
    • 0025662904 scopus 로고
    • Successional replacement of old-growth white oak by mixed mesophytic hardwoods in southwestern Pennsylvania
    • ABRAMS, M.D., AND J.A. DOWNS. 1990. Successional replacement of old-growth white oak by mixed mesophytic hardwoods in southwestern Pennsylvania. Can. J. For. Res. 20:1864-1870.
    • (1990) Can. J. For. Res. , vol.20 , pp. 1864-1870
    • Abrams, M.D.1    Downs, J.A.2
  • 2
    • 0004087732 scopus 로고
    • Washington DC: U.S. Geological Survey. Scale 1:7,500,000; colored. Accompanied by a supplementary table of map unit descriptions compiled and edited by McNab, W.H., and Bailey, R.G. Prepared for the USDA Forest Service
    • BAILEY, R.G., P.E. AVERS, T. KING, W.H. MCNAB (EDS.). 1994. Ecoregions and subregions of the United States (map). Washington DC: U.S. Geological Survey. Scale 1:7,500,000; colored. Accompanied by a supplementary table of map unit descriptions compiled and edited by McNab, W.H., and Bailey, R.G. Prepared for the USDA Forest Service.
    • (1994) Ecoregions and Subregions of the United States (Map)
    • Bailey, R.G.1    Avers, P.E.2    King, T.3    McNab, W.H.4
  • 3
    • 0026049950 scopus 로고
    • Canopy disturbance patterns and regeneration of Quercus species in two Ohio old-growth forests
    • CHO, D.S., AND R.E.J. BOERNER. 1991. Canopy disturbance patterns and regeneration of Quercus species in two Ohio old-growth forests. Vegetatio. 93:9-18.
    • (1991) Vegetatio. , vol.93 , pp. 9-18
    • Cho, D.S.1    Boerner, R.E.J.2
  • 4
    • 0347919784 scopus 로고
    • Growth of northern red oak seedlings planted in a central Missouri clearcut and shelterwood
    • Proc. Fifth southern silvicultural research conference. SO-74
    • CRUNKILTON, D.D., H.E. GARRET, AND S.G. PALLARDY. 1989. Growth of northern red oak seedlings planted in a central Missouri clearcut and shelterwood. P. 81-85 in Proc. Fifth southern silvicultural research conference. USDA For. Serv. Gen. Tech. Rep. SO-74.
    • (1989) USDA For. Serv. Gen. Tech. Rep. , pp. 81-85
    • Crunkilton, D.D.1    Garret, H.E.2    Pallardy, S.G.3
  • 5
    • 0029773721 scopus 로고    scopus 로고
    • Modeling the regeneration of oak stands in the Missouri Ozark Highlands
    • DEY, D.C., P.S. JOHNSON, AND H.E. GARRETS. 1996. Modeling the regeneration of oak stands in the Missouri Ozark Highlands. Can. J. For. Res. 6:573-583.
    • (1996) Can. J. For. Res. , vol.6 , pp. 573-583
    • Dey, D.C.1    Johnson, P.S.2    Garrets, H.E.3
  • 6
    • 0003653841 scopus 로고    scopus 로고
    • Regeneration of red oak (Quercus rubra L.) using shelterwood systems: Ecophysiology, silviculture and management recommendations
    • Sault Ste. Marie, ON: Ontario Ministry of Natural Resources, Ont. For. Res. Inst. 59 p.
    • DEY, D.C., AND W.C. PARKER. 1996. Regeneration of red oak (Quercus rubra L.) using shelterwood systems: Ecophysiology, silviculture and management recommendations. For. Res. Info. Pap. 126. Sault Ste. Marie, ON: Ontario Ministry of Natural Resources, Ont. For. Res. Inst. 59 p.
    • (1996) For. Res. Info. Pap. , vol.126
    • Dey, D.C.1    Parker, W.C.2
  • 7
    • 0030832152 scopus 로고    scopus 로고
    • Morphological indicators of stock quality and field performance of red oak (Quercus rubra L.) seedlings underplanted in a central Ontario shelterwood
    • DEY, D.C., AND W.C. PARKER. 1997a. Morphological indicators of stock quality and field performance of red oak (Quercus rubra L.) seedlings underplanted in a central Ontario shelterwood. New For. 14:145-156.
    • (1997) New For. , vol.14 , pp. 145-156
    • Dey, D.C.1    Parker, W.C.2
  • 8
    • 0346028099 scopus 로고    scopus 로고
    • Overstory density affects field performance of underplanted red oak (Quercus rubra L.) in Ontario
    • DEY, D.C., AND W.C. PARKER. 1997b. Overstory density affects field performance of underplanted red oak (Quercus rubra L.) in Ontario. North. J. Appl. For. 14:120-125.
    • (1997) North. J. Appl. For. , vol.14 , pp. 120-125
    • Dey, D.C.1    Parker, W.C.2
  • 9
    • 0031472789 scopus 로고    scopus 로고
    • Successional trends in a mixed oak forest on High Mountain, New Jersey
    • DODGE, S.L. 1997. Successional trends in a mixed oak forest on High Mountain, New Jersey. J. Torr. Bot. Soc. 124:312-317.
    • (1997) J. Torr. Bot. Soc. , vol.124 , pp. 312-317
    • Dodge, S.L.1
  • 12
    • 84915137211 scopus 로고
    • Site index predictions for red oaks and white oaks in the Boston Mountains of Arkansas
    • SO-139.9 p.
    • GRANEY, D.L. 1977. Site index predictions for red oaks and white oaks in the Boston Mountains of Arkansas. USDA For. Serv. Res. Pap. SO-139.9 p.
    • (1977) USDA For. Serv. Res. Pap.
    • Graney, D.L.1
  • 13
    • 0346659207 scopus 로고
    • Growth of oak, ash and cherry reproduction following overstory thinning of upland hardwood stands in the Boston Mountains of Arkansas
    • Dawson, J. O., and K. A. Majerus (eds.). Dep. of For., University of Illinois, Urbana-Champaign
    • th Central Hardwood Forest Conference, Dawson, J. O., and K. A. Majerus (eds.). Dep. of For., University of Illinois, Urbana-Champaign.
    • (1985) th Central Hardwood Forest Conference , pp. 4-10
    • Graney, D.L.1    Rogerson, T.L.2
  • 14
    • 0346028102 scopus 로고    scopus 로고
    • An evaluation of uneven-aged cutting methods in even-aged hickory stands in the Boston Mountains of Arkansas
    • th Central Hardwood Forest Conference, Pallardy, S.G., et al. (eds.). ND-188
    • th Central Hardwood Forest Conference, Pallardy, S.G., et al. (eds.). USDA For. Serv. Gen Tech. Rep. ND-188.
    • (1997) USDA For. Serv. Gen Tech. Rep. , pp. 130-146
    • Graney, D.L.1    Murphy, P.A.2
  • 15
    • 2342664646 scopus 로고
    • Shelterwood harvesting and underplanting to enhance the northern red oak component of shallow-site forests in central Ontario: 6-Year results
    • Abstr. Fifth workshop on seedling physiology and growth problems in oak plantings. NC-158
    • GORDON, A.M., J.A. SIMPSON, AND P.A. WILLIAMS. 1993. Shelterwood harvesting and underplanting to enhance the northern red oak component of shallow-site forests in central Ontario: 6-year results. P. 10 in Abstr. Fifth workshop on seedling physiology and growth problems in oak plantings. USDA For. Serv. Gen. Tech. Rep. NC-158.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 10
    • Gordon, A.M.1    Simpson, J.A.2    Williams, P.A.3
  • 17
    • 0000133393 scopus 로고
    • Responses of planted northern red oak to three overstory treatments
    • JOHNSON, P.S. 1984. Responses of planted northern red oak to three overstory treatments. Can. J. For. Res. 14:536-542.
    • (1984) Can. J. For. Res. , vol.14 , pp. 536-542
    • Johnson, P.S.1
  • 18
    • 0000751041 scopus 로고
    • Undercutting alters root morphology and improves field performance of northern red oak
    • Univ. British Columbia, Vancouver, B.C.
    • JOHNSON, P.S. 1988. Undercutting alters root morphology and improves field performance of northern red oak. P. 316-323 in Proc. Tenth North American Forest Biology workshop. Univ. British Columbia, Vancouver, B.C.
    • (1988) Proc. Tenth North American Forest Biology Workshop , pp. 316-323
    • Johnson, P.S.1
  • 19
    • 0347289536 scopus 로고
    • Growing hardwood nursery stock for planting on forest sites with special reference to northern red oaks
    • Illinois Division of Forest Resources, Topeka, IL
    • JOHNSON, P.S. 1989. Growing hardwood nursery stock for planting on forest sites with special reference to northern red oaks. P. 46-62 in Proc. Northeastern Area Nurserymens' conf., Illinois Division of Forest Resources, Topeka, IL.
    • (1989) Proc. Northeastern Area Nurserymens' Conf. , pp. 46-62
    • Johnson, P.S.1
  • 20
    • 0346028100 scopus 로고
    • Undercutting influences root morphology and field performance of northern red oak
    • Abstr., Fourth workshop on seedling physiology and growth problems in oak plantings. NC-139
    • JOHNSON, P.S. 1990. Undercutting influences root morphology and field performance of northern red oak. P. 12 in Abstr., Fourth workshop on seedling physiology and growth problems in oak plantings. USDA For. Serv. Gen. Tech. Rep. NC-139.
    • (1990) USDA For. Serv. Gen. Tech. Rep. , pp. 12
    • Johnson, P.S.1
  • 21
    • 0008838224 scopus 로고
    • An ecological inventory of Bryan Nature Preserve
    • JOHNSON, H.S., J.S. BERKEBILE, AND G.R. PARKER. 1973. An ecological inventory of Bryan Nature Preserve. Acad. Sci. 83:167-172.
    • (1973) Acad. Sci. , vol.83 , pp. 167-172
    • Johnson, H.S.1    Berkebile, J.S.2    Parker, G.R.3
  • 23
    • 0000891002 scopus 로고
    • Root, shoot and leaf area growth potentials of northern red oak planting stock
    • JOHNSON, P.S., S.L. NOVINGER, AND W.G. MARES. 1984. Root, shoot and leaf area growth potentials of northern red oak planting stock. For. Sci. 30:1017-1026.
    • (1984) For. Sci. , vol.30 , pp. 1017-1026
    • Johnson, P.S.1    Novinger, S.L.2    Mares, W.G.3
  • 25
    • 0022213222 scopus 로고
    • A method for estimating the contribution of planted hardwoods to future stocking
    • JOHNSON, P.S., AND R. ROGERS. 1985. A method for estimating the contribution of planted hardwoods to future stocking. For. Sci. 3:883-891.
    • (1985) For. Sci. , vol.3 , pp. 883-891
    • Johnson, P.S.1    Rogers, R.2
  • 26
    • 0346659209 scopus 로고
    • Covariate analysis of northern red oak seedling growth
    • th Biennial South. Silvic. Res. conf., Brissette, J.C. (ed.). SO-93
    • th Biennial South. Silvic. Res. conf., Brissette, J.C. (ed.). USDA For. Serv. Gen. Tech. Rep. SO-93.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 351-356
    • Kaczmarek, D.J.1    Pope, P.E.2
  • 27
    • 0347919781 scopus 로고    scopus 로고
    • Effect of seedling size and first-order-lateral roots on early development of northern red oak on mesic sites
    • th Biennial South. Silvic. Res. conf., Waldrop, T.A. (ed.). SRS-20
    • th Biennial South. Silvic. Res. conf., Waldrop, T.A. (ed.). USDA Gen. Tech. Rep. SRS-20.
    • (1998) USDA Gen. Tech. Rep. , pp. 247-252
    • Kormanik, P.P.1    Sung, S.-J.S.2    Kass, D.J.3    Schlarbaum, S.4
  • 28
    • 0030812802 scopus 로고    scopus 로고
    • Oak regeneration and overstory density in the Missouri Ozarks
    • LARSEN, D.R., M.A. METZGER, AND P.S. JOHNSON. 1997. Oak regeneration and overstory density in the Missouri Ozarks. Can. J. For. Res. 27:869-875.
    • (1997) Can. J. For. Res. , vol.27 , pp. 869-875
    • Larsen, D.R.1    Metzger, M.A.2    Johnson, P.S.3
  • 29
    • 0025658639 scopus 로고
    • A shelterwood method for regenerating red oak in the southern Appalachians
    • LOFTIS, D.L. 1990. A shelterwood method for regenerating red oak in the southern Appalachians. For. Sci. 36:917-929.
    • (1990) For. Sci. , vol.36 , pp. 917-929
    • Loftis, D.L.1
  • 31
    • 0028179874 scopus 로고
    • Tall understorey vegetation as a factor in the poor development of oak seedlings beneath mature stands
    • LORIMER, C.G, J.W. CHAPMAN, AND W.D. LAMBERT. 1994. Tall understorey vegetation as a factor in the poor development of oak seedlings beneath mature stands. J. Ecol. 82:227-237.
    • (1994) J. Ecol. , vol.82 , pp. 227-237
    • Lorimer, C.G.1    Chapman, J.W.2    Lambert, W.D.3
  • 33
    • 0012988348 scopus 로고
    • Black cherry
    • Silvics of North America, Hardwoods. 654
    • MARQUIS, D.A. 1990. Black cherry. P. 594-604 in Silvics of North America, vol. 2, Hardwoods. USDA For. Serv. Agric. Handb. 654.
    • (1990) USDA For. Serv. Agric. Handb. , vol.2 , pp. 594-604
    • Marquis, D.A.1
  • 35
    • 0001808115 scopus 로고
    • Loss of Quercus spp. dominance in an undisturbed old-growth forest
    • MCGEE, C.E. 1986. Loss of Quercus spp. dominance in an undisturbed old-growth forest. J. Elisha Mitchell Sci. Soc. 102:10-15.
    • (1986) J. Elisha Mitchell Sci. Soc. , vol.102 , pp. 10-15
    • McGee, C.E.1
  • 36
    • 0027329471 scopus 로고
    • Variable acorn crops: Responses of white-tailed deer and other mast consumers
    • MCSHEA, W.J., AND G. SCHWEDE. 1993. Variable acorn crops: Responses of white-tailed deer and other mast consumers. J. Mam. 74:999-1006.
    • (1993) J. Mam. , vol.74 , pp. 999-1006
    • McShea, W.J.1    Schwede, G.2
  • 38
    • 0002086478 scopus 로고
    • Group selection - Problems and possibilities and the more shade-intolerant species
    • Proc. of the 9th Central Hardwood For. Conf., Gillespie, A.R., G. R. Parker, and P.E. Pope (eds.). NC-161
    • MURPHY, P.A., M.G. SHELTON, AND D.L. GRANEY. 1993. Group selection - problems and possibilities and the more shade-intolerant species. P. 229-247 in Proc. of the 9th Central Hardwood For. Conf., Gillespie, A.R., G. R. Parker, and P.E. Pope (eds.). USDA For. Serv. Gen. Tech. Rep. NC-161.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 229-247
    • Murphy, P.A.1    Shelton, M.G.2    Graney, D.L.3
  • 39
    • 0002552732 scopus 로고
    • Effects of hunting and mast crops on a squirrel population
    • NIXON, C.M., M.W. MCCLAIN, AND R.W. DONOHOE. 1975. Effects of hunting and mast crops on a squirrel population. J. Wildl. Manage. 39:1-25.
    • (1975) J. Wildl. Manage. , vol.39 , pp. 1-25
    • Nixon, C.M.1    McClain, M.W.2    Donohoe, R.W.3
  • 40
    • 0012503881 scopus 로고
    • A historical perspective of planting and seeding oaks: Progress, problems and status
    • Proc. Oak regeneration: Serious problems, practical recommendations. SE-84
    • POPE, P.E. 1993. A historical perspective of planting and seeding oaks: Progress, problems and status. P. 224-240 in Prec. Oak regeneration: Serious problems, practical recommendations. USDA For. Serv. Gen. Tech. Rep. SE-84.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 224-240
    • Pope, P.E.1
  • 42
    • 0346028094 scopus 로고
    • Survival and growth of bar-slit planted northern red oak studied in Tennessee
    • RUSSELL, T.E. 1973. Survival and growth of bar-slit planted northern red oak studied in Tennessee. Tree Planters' Notes 24:6-9.
    • (1973) Tree Planters' Notes , vol.24 , pp. 6-9
    • Russell, T.E.1
  • 43
    • 0346028096 scopus 로고
    • Planting methods for black walnut on Cumberland Plateau sites
    • RUSSELL, T.E. 1979. Planting methods for black walnut on Cumberland Plateau sites. Tree Planters' Notes 30:11-13.
    • (1979) Tree Planters' Notes , vol.30 , pp. 11-13
    • Russell, T.E.1
  • 45
    • 0342570828 scopus 로고
    • Regenerating oaks in the central states
    • Proc. Oak regeneration: Serious problems, practical recommendations. SE-84
    • SANDER, I.L., AND D.L. GRANEY. 1993. Regenerating oaks in the central states. P. 174-183 in Proc. Oak regeneration: Serious problems, practical recommendations. USDA For. Serv. Gen. Tech. Rep. SE-84.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 174-183
    • Sander, I.L.1    Graney, D.L.2
  • 46
    • 0000789369 scopus 로고
    • Oak regeneration potential increased by shelterwood treatments
    • SCHLESINGER, R.C., I.L. SANDER, AND K.R. DAVIDSON. 1993. Oak regeneration potential increased by shelterwood treatments. North. J. Appl. For. 10:149-153.
    • (1993) North. J. Appl. For. , vol.10 , pp. 149-153
    • Schlesinger, R.C.1    Sander, I.L.2    Davidson, K.R.3
  • 47
    • 0030933032 scopus 로고    scopus 로고
    • Effect of density control and undercutting on root morphology of 1+0 barefoot hardwood seedlings: Five-year field performance of root-graded stock in the central USA
    • SCHULTZ, R.C., AND J.R. THOMPSON. 1997. Effect of density control and undercutting on root morphology of 1+0 barefoot hardwood seedlings: Five-year field performance of root-graded stock in the central USA. New For. 13:301-314.
    • (1997) New For. , vol.13 , pp. 301-314
    • Schultz, R.C.1    Thompson, J.R.2
  • 48
    • 0000765356 scopus 로고
    • Sugar maple invasion of an old-growth oak-hickory forest in southwestern Illinois
    • SHOTOLA, S.J., G.T. WEAVER, P.A. ROBERTSON, AND W.C. ASHBY. 1992. Sugar maple invasion of an old-growth oak-hickory forest in southwestern Illinois. Am. Midl. Natur. 127:125-138.
    • (1992) Am. Midl. Natur. , vol.127 , pp. 125-138
    • Shotola, S.J.1    Weaver, G.T.2    Robertson, P.A.3    Ashby, W.C.4
  • 50
    • 0002754749 scopus 로고    scopus 로고
    • Distribution of biomass in an Indiana old-growth forest from 1926 to 1992
    • SPETICH, M.A., AND G.R. PARKER. 1998. Distribution of biomass in an Indiana old-growth forest from 1926 to 1992. Am. Midl. Natur. 139:90-107.
    • (1998) Am. Midl. Natur. , vol.139 , pp. 90-107
    • Spetich, M.A.1    Parker, G.R.2
  • 51
    • 0027708749 scopus 로고
    • An artificial regeneration system for establishing northern red oak on dry-mesic sites in the Lake States, USA
    • TECLAW, R.M., AND J.G. ISEBRANDS. 1993a. An artificial regeneration system for establishing northern red oak on dry-mesic sites in the Lake States, USA. Annales des Sciences Forestières 50:543-552.
    • (1993) Annales des Sciences Forestières , vol.50 , pp. 543-552
    • Teclaw, R.M.1    Isebrands, J.G.2
  • 52
    • 0347919779 scopus 로고
    • Artificial regeneration of northern red oak in the Lake State with a light shelterwood: A departure from tradition
    • Proc. of the 9th Central Hardwood For. Conf., Gillespie, A.R., G.R. Parker, and P.E. Pope (eds.). NC-161
    • TECLAW, R.M., AND J.G. ISEBRANDS. 1993b. Artificial regeneration of northern red oak in the Lake State with a light shelterwood: A departure from tradition. P. 185-194 in Proc. of the 9th Central Hardwood For. Conf., Gillespie, A.R., G.R. Parker, and P.E. Pope (eds.). USDA For. Serv. Gen. Tech. Rep. NC-161.
    • (1993) USDA For. Serv. Gen. Tech. Rep. , pp. 185-194
    • Teclaw, R.M.1    Isebrands, J.G.2
  • 53
    • 0000614964 scopus 로고
    • Utilization of oaks by birds and mammals
    • VAN DERSAL, W.R. 1940. Utilization of oaks by birds and mammals. J. Wildl. Manage. 4: 404-428.
    • (1940) J. Wildl. Manage. , vol.4 , pp. 404-428
    • Van Dersal, W.R.1
  • 54
    • 0003042331 scopus 로고
    • Flowering dogwood (Cornus Florida L.)
    • Silvics of forest trees of the United States, Fowells, H.A. (comp.), Washington, DC
    • VIMMERSTEDT, J.P. 1965. Flowering dogwood (Cornus Florida L.). P. 162-166 in Silvics of forest trees of the United States, Fowells, H.A. (comp.). USDA Handb. 271, Washington, DC.
    • (1965) USDA Handb. , vol.271 , pp. 162-166
    • Vimmerstedt, J.P.1
  • 55
    • 0347919780 scopus 로고    scopus 로고
    • Planting white oak in the Missouri Ozark Highlands: A shelterwood prescription
    • TB-NC-5. 8 p.
    • WEIGEL, D.R., AND P.S. JOHNSON. 1998a. Planting white oak in the Missouri Ozark Highlands: A shelterwood prescription. USDA For. Serv. Tech. Brief TB-NC-5. 8 p.
    • (1998) USDA For. Serv. Tech. Brief
    • Weigel, D.R.1    Johnson, P.S.2
  • 56
    • 0347919780 scopus 로고    scopus 로고
    • Planting northern red oak in the Missouri Ozark Highlands: A shelterwood prescription
    • TB-NC-6. 8 p.
    • WEIGEL, D.R., AND P.S. JOHNSON. 1998b. Planting northern red oak in the Missouri Ozark Highlands: A shelterwood prescription. USDA For. Serv. Tech. Brief TB-NC-6. 8 p.
    • (1998) USDA For. Serv. Tech. Brief
    • Weigel, D.R.1    Johnson, P.S.2
  • 57
    • 4243806906 scopus 로고    scopus 로고
    • Planting red oak under oak/yellow-poplar shelterwoods: A provisional prescription
    • GTR NC-210. 16 p.
    • WEIGEL, D.R., AND P.S. JOHNSON. 2000. Planting red oak under oak/yellow-poplar shelterwoods: a provisional prescription. USDA For. Serv. GTR NC-210. 16 p.
    • (2000) USDA For. Serv.
    • Weigel, D.R.1    Johnson, P.S.2
  • 58
    • 0036231051 scopus 로고    scopus 로고
    • Predicting oak stump sprouting and competitive success of five oak species in southern Indiana
    • WEIGEL, D.R., AND C.J. PENG. 2002. Predicting oak stump sprouting and competitive success of five oak species in southern Indiana. Can. J. For. Res. 32(4):703-712.
    • (2002) Can. J. For. Res. , vol.32 , Issue.4 , pp. 703-712
    • Weigel, D.R.1    Peng, C.J.2
  • 61
    • 0030895174 scopus 로고    scopus 로고
    • Northern red oak planting stock: 6-Year results
    • ZACZEK, J.J., K.C. STEINER, AND T.W. BOWERSOX. 1997. Northern red oak planting stock: 6-year results. New For. 13:177-191.
    • (1997) New For. , vol.13 , pp. 177-191
    • Zaczek, J.J.1    Steiner, K.C.2    Bowersox, T.W.3


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