FRED Updates or Corrections

As with other large databases, we expect that FRED 2.0 will evolve over time. Notify us if you find any issues or mistakes within the database; we will plan to update FRED occasionally to correct these mistakes. In the meantime, we will keep a running list of any mistakes that are found in a table below. Updates that we implemented between FRED 1.0 and FRED 2.0 can be found here

Filename: FRED2_20180518.csv
No. Date Found FRED Trait Name Column IDs Row IDs Citation Description
1 Plant taxonomy_Family_TPL, Plant taxonomy_Order_APW, Plant taxonomy_Group_TPL F01289, F01290, F01291 7397-7400 Ushio M et al. 2015. Functional Ecology 29: 1235-1245. Correct family to Myrtaceae, order to Myrtales, and group to Angiosperms.
2 Plant taxonomy_Family_TPL, Plant taxonomy_Order_APW F01289, F01290 32539, 32540, 32541 Fan P, Guo D. 2010. Oecologia 163:509-515. Correct family to Oleaceae, order to Lamiales.
3 Root turnover_Annual biomass turnover per ground area, n_Root turnover_Annual biomass turnover per ground area, SE_Root turnover_Annual biomass turnover per ground area, Root turnover_Annual root system replacement, n_Root turnover_Annual root system replacement, SE_Root turnover_Annual root system replacement F00579, F00580, F00581, F00582, F00583, F00584 1310-1325 Mei L, Gu J, Zhang Z, Wang Z. 2010. Responses of fine root mass, length, production and turnover to soil nitrogen fertilization in Larix gmelinii and Fraxinus mandshurica forests in Northeastern China J for Res 15:194-201.  Some turnover data had been erroneously entered into F00579 (Root turnover_Annual biomass turnover per ground area), with n and SE, that should have been entered into F00582.
4 Data source_Citation, Data source_Citation F00004, F00005 25555-25559 Davis EA, Pase CP. 1977. Root system of shrub live oak: Implications for water yield in Arizona chaparral. Journal of Soil and Water Conservation 32:174-180., Davis GR, Neilsen WA, McDavitt JG. 1983. Root distribution of Pinus radiata related to soil characteristics in five Tasmanian soils. Australian Journal of Soil Research, 21(2), 165-171. The citation and DOI in these rows are incorrect. The proper citation is:
Davis GR, Neilsen WA, McDavitt JG. 1983. Root distribution of Pinus radiata related to soil characteristics in five Tasmanian soils. Australian Journal of Soil Research, 21: 165-171.
and the proper DOI is: 
10.1071/SR9830165
5 Root length density (RLD)_Root length per ground area, SE_Root length density (RLD)_Root length per ground area F00934, F00936 10042-10124, 14946-14956, 29170-26191 Bakker MR, Augusto L, Achat DL. 2006. Fine root distribution of trees and understory in mature stands of maritime pine (Pinus pinaster) on dry and humid sites. Plant Soil 286: 37-51. , Fort F, Jouany C, Cruz P. 2013.Root and leaf functional trait relations in Poaceae species: implications of differing resource-acquisition strategies. Journal of Plant Ecology 6:211-219, Withington JM, Reich PB, Oleksyn J, Eissenstat DM. 2006. Comparisons of structure and life span in roots and leaves among temperate trees. Ecological Monographs 76: 381-397. Remove data; all are erroneously entered duplicates of data from other traits.
6 Data Source_DOI F00005 16755-16770 Santantonio D, Grace JC. 1987. Estimating fine-root production and turnover from biomass and decomposition data: a compartment–flow model. Canadian Journal of Forest Research 17: 900-908. DOI should be corrected to 10.1139/x87-141
7 min_root branching intensity, root branching intensity F01342, F01339 9697-9792 Kong D et al. 2014. Leading dimensions in absorptive root trait variation across 96 subtropical forest species. New Phytologist 203: 863-872. Move data from min_root branching intensity to root branching intensity
8 Leaf area index (LAI)_Fraction of peak, Leaf area index (LAI)_Per ground area F01254, F01256 18278-18292, 19921-19935, 21551-21565 Falster DS et al. 2015. BAAD: A Biomass and Allometry Database for woody plants. Ecology 96: 1445. Data mistakenly placed in Leaf area index (LAI)_Fraction of peak should be in Leaf area index (LAI)_Per ground area
9 Chamber_Photoperiod, Chamber_Temperature_day F01232, F01233, F01234 14691-14710 Atkinson LK et al. 2006. Impact of temperature on the relationship between respiration and nitrogen concentration in roots: an analysis of scaling relationships, Q10 values and thermal acclimation ratios. New Phytologist 173: 110-120. Data are incorrect; photoperiod should be 16 and temperature should be 25 or 13.
10 Air temperature_Coldest month, Air temperature_Warmest month F01229, F01230 3087-3188, 15609-15648 Mokany K, Ash J. 2008. Are traits measured on pot grown plants representative of those in natural communities? Journal of Vegetation Science 19: 119-126., Arunachalam A et al. 1996. Biomass and production of fine and coarse roots during regrowth of a disturbed subtropical humid forest in north-east India. Vegetatio 123: 73-80. Data in the two columns should be switched.
11 Min_Latitude, Max_Latitude, Min_Longitude, Max_Longitude F01191, F01192, F01193, F01194 15934-15969 Roumet C, Urcelay C, Diaz S. 2006. Suites of root traits differ between annual and perennial species growing in the field. New Phytologist 170: 357-368. Values for min & max latitude should be switched with those for min & max longitude.
12 Min_Latitude, Max_Latitude F01191, F01192 1564-1621 Holdaway RJ et al. 2011. Species- and community-level patterns in fine root traits along a 120 000-year soil chronosequence in temperate rain forest. Journal of Ecology 99: 954-963. Data in the two columns should be switched.
13 Min_Stem diameter at breast height (DBH) F01173 23124-23131, 23170-23176, 23200, 23203, 23206, 23209, 23211, 23213, 23233, 23236 Steele SJ et al. 1997. Root mass, net primary production and turnover in aspen, jack pine and black spruce forests in Saskatchewan and Manitoba, Canada. Tree Physiology 17: 577-587. Data are erroneous; should be corrected to 2.1.
14 Soil texture_Fraction sand, Soil texture_Fraction silt, Soil texture_Fraction clay, Soil organic matter content F00986, F00987, F00988, F00989 9845-9997 Zhou Y et al. 2014. Fine root and litterfall dynamics of three Korean pine (Pinus korainensis) forests along an altitudinal gradient. Plant Soil 374: 19-32. Data in in F00987 should be moved to F00986; data in F00988 should be moved to F00987; data in F00989 should be moved to F00988
15 Soil organic matter content F00989 9845-9997 Zhou Y et al. 2014. Fine root and litterfall dynamics of three Korean pine (Pinus korainensis) forests along an altitudinal gradient. Plant Soil 374: 19-32. Data in FRED 1.0 and 2.0 are erroneous; for corrected values, consult source or contact FRED administrators.
16 Root xylem vessel number per root stele area, Root number of vessels F00137, F01313 9697-9792 Kong D et al. 2014. Leading dimensions in absorptive root trait variation across 96 subtropical forest species. New Phytologist 203: 863-872. Data in F00137 belong in F01313.
17 Mycorrhiza_Fraction mycorrhizal root tips that are living F00617 87-91, 96-102 Bakker MR, Augusto L, Achat DL. 2006. Fine root distribution of trees and understory in mature stands of maritime pine (Pinus pinaster) on dry and humid sites. Plant Soil 286: 37-51.  Data were entered into the wrong rows and should be deleted.
18 Root respiration rate per root dry mass_CO2 release, n_Root respiration rate per root dry mass_CO2 release, SE_Root respiration rate per root dry mass_CO2 release, Root respiration rate per root dry mass_O2 uptake, n_Root respiration rate per root dry mass_O2 uptake, SE_Root respiration rate per root dry mass_O2 uptake F00802, F00803, F00804, F00799, F00800, F00801 6760-6763 Sowell JB, Spomer GG. 1986. Ecotypic variation in root respiration rate among elevational populations of Abies lasiocarpa and Picea engelmannii. Oecologia 68: 375-379. Data should be moved from F00802 to F00799, F00803 to F00800, and F00804 to F00801.
19 Notes_Treatment types F01159 7760 Wright SJ et al. 2011. Potassium, Phosphorus, or nitrogen limit root allocation, tree growth, or litter production in a lowland tropical forest. Ecology 92:1616-1625. Change value to "nitrogen addition" to accord with controlled vocabulary.
20 Notes_Treatment types F01159 31811-31870 Razaq M et al. 2017. Influence of nitrogen and phosphorous on the growth and root morphology of Acer mono. PLoS ONE 12: e0171321. Change value to "nitrogen and phosphorus addition" to accord with controlled vocabulary.
21 Notes_Treatment types F01159 34020-34021 Laclau J-P et al. 2013. Dynamics of soil exploration by fine roots down to a depth of 10 m throughout the entire rotation in Eucalyptus grandis plantations. Frontiers in plant science 4(July): 243. Change value to "multi-nutrient addition" to accord with controlled vocabulary.
22 Notes_Treatment types F01159 33290 Fan Y, Miguez-Macho G, Jobbagy EG, Jackson RB, Otero-Casal C. 2017. Hydrologic regulation of plant rooting depth. 2017. PNAS 114: 10572-10577., Ceballos DS, Frangi J, Jobbagy EG. 2013. Soil volume and carbon storage shifts in drained and afforested wetlands of the Parana River Delta. Biogeochemistry 112(1-3):359-372. Change to "disturbance manipulation; water manipulation" to accord with format standards.
23 Plant Taxonomy_Subspecies F00020 1496-1527, 5420, 5455, 5480, 5481, 5482, 5483, 5484, 5485, 5486, 5487, 5571, 5592, 5593, 5665, 5793, 5863, 5880, 5896, 5996, 31965-32000 de Graaff M-A, Six J, Jastrow JD, Schadt CW, Wullschleger SD. 2013. Variation in root architecture among switchgrass cultivars impacts root decomposition rates. Soil Biology and Biochemistry 58:198-206., Hobbie JE, Hobbie EA. 2006. 15N in symbiotic fungi and plants estimates nitrogen and carbon flux rates in Arctic tundra. Ecology 87: 816–822., Iversen C.M. et al. 2014. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012. Next Generation Ecosystem Experiments Arctic Data Collection, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. Data set accessed at http://dx.doi.org/10.5440/1114222., Keuper FK. 2012. Direct and indirect effects of climatic changes on vegetation productivity and species composition of permafrost peatlands. PhD Thesis, VU University, Amsterdam, the Netherlands., Kjelvik S, Karenlampi L. 1975. Plant biomass and primary production of Fennoscandian subarctic and subalpine forests and of alpine willow and heathecosystems. In: Wielgolaski FE, ed. Fennoscandian tundra ecosystems. New York, NY, USA: Springer-Verlag, 111–120. Koch GW, Bloom AJ, Chapin FS. 1991., Malmer N, Wallen B. 1986. Inorganic elements above and below ground in dwarf shrubs on a subarctic peat bog. Oikos 46: 200-206., Michelsen A et al. 1996. Leaf 15N abundance of subarctic plants provides field evidence that ericoid, ectomycorrhizal and non- and arbuscular mycorrhizal species access different sources of soil nitrogen. Oecologia 105: 53–63., Miller OK, Jr.  1982. Mycorrhizae, mycorrhizal fungi and fungal biomass in subalpine tundra at Eagle Summit, Alaska. Holarctic Ecology 5: 125-134., Sorensen PL, Clemmensen KE, Michelsen A, Jonasson S, Strom L. 2008. Plant and microbial uptake and allocation of organic and inorganic nitrogen related to plant growth forms and soil conditions at two subarctic tundra sites in Sweden. Arctic, Antarctic, and Alpine Research 40: 171–180., Vare H, Vestberg M, Ohtonen R. 1997. Shifts in mycorrhiza and microbial activity along an oroarctic altitudinal gradient in Northern Fennoscandia. Arctic and Alpine Research 29: 93-104., Wallen B. 1986. Above- and belowground dry mass of the three main vascular plants on hummocks on a sub-arctic peat bog. Oikos 46: 51–56., Wang B, Qiu YL. Phylogenetic distribution and evolution of mycorrhizas in land plants. Mycorrhiza 16: 299-363., Wielgolaski FE. 1972. Vegetation types and plant biomass in tundra. Arctic and Alpine Research 4: 291-305., Jeffery RP, Simpson RJ, Lambers H, Kidd DR, Ryan MH. 2017. Root morphology acclimation to phosphorus supply by six cultivars of Trifolium subterraneum L. Plant Soil 412: 21-34. Decapitalize capitalized entries
24 Max_Root N content F00266 1621 Holdaway RJ, Richardson SJ, Dickie IA, Peltzer DA, Coomes DA. 2011. Species- and community-level patterns in fine root traits along a 120 000-year soil chronosequence in temperate rain forest. Journal of Ecology 99: 954-963. Data is erroneous; should be corrected to 0.93.
25 n_Root alkyl C content per root C content, n_Root aromatic C content per root C content, n_Root O-alkyl C content per root C content F00432, F00438, F00435 16059, 16064, 16069, 16074 Wang H, Liu S, Mo J. 2010. Correlation between leaf litter and fine root decomposition among subtropical tree species. Plant soil 335: 289-298. Sample size is erroneous; corrected to 5.
26 Species name unresolved F01413 14715, 14718 Aulen M, Shipley B, Bradley R. 2012. Prediction of in situ root decomposition rates in an interspecific context from chemical and morphological traits. Annals of Botany 109: 287-297. Species name should be marked as unresolved for Larix x marschlinsii
27 Root lignin/N ratio F00419 16051-16057 Yu LZ, Ding GQ, Zhu JJ, Zhang N, Zhang XP, Ying H. 2009. Effects of fertilization on nutrient concentrations of different root orders’ fine roots in Larix kaempferi plantation. Chinese Journal of Applied Ecology 20: 747-753.  Values are incorrect.
28 Root decomposition_Annual k constant, SE_Root decomposition_Annual k constant F00461, F00462 15462-15473 Jalota RK, Dalal RC, Harms BP, Page K, Mathers NJ, Wang WJ. 2006. Effects of litter and fine root composition on their decomposition in a Rhodic Paleustalf under different land uses. Communications in Soil Science and Plant Analysis 37: 1859-1875. Incorrect values.
29 Root heterorhizy_Fibrous or pioneering F00066 17073-17080 Bagniewska-Zadworna A, Byczyk J, Eissenstat DM, Oleksyn J, Zadworny M. 2012. Avoiding transport bottlenecks in an expanding root system: Xylem vessel development in fibrous and pioneer roots under field conditions. American Journal of Botany 99: 1417-1426. Decapitalize capitalized entries.
30 Root vitality_Roots living or dead F00064 5253-5254 Iversen C.M., Sloan V.L., Sullivan P.F., Euskirchen E.S., McGuire A.D., Norby R.J., Walker A.P., Warren J.M., Wullschleger S.D. 2014. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012. Next Generation Ecosystem Experiments Arctic Data Collection, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. Data set accessed at http://dx.doi.org/10.5440/1114222. Decapitalize capitalized entries.
31 Notes_In situ, pot, or hydroponic F01156 35396-35445 Freschet GT, Bellingham PJ, Lyver PO'B, Bonner KI, Wardle DA. 2013. Plasticity in above- and belowground resource acquisition traits in response to single and multiple environmental factors in three tree species. Ecology and Evolution 3: 1065-1078. Decapitalize capitalized entries.
32 Belowground part F00055 949, 952, 955, 958, 961, 964, 967, 970 Majdi H. 2001. Changes in fine root production and longevity in relation to water and nutrient availability in a Norway spruce stand in northern Sweden. Tree Physiology 21:1057-1061. Should be changed to "CR".
33 Mycorrhiza_Type_Data source F00645 9758 Kong D, Ma C, Zhang Q, Li L, Chen X, Zeng H, Guo D. 2014. Leading dimensions in absorptive root trait variation across 96 subtropical forest species. New Phytologist 203: 863-872. "ERM" should be corrected to "ErM".
34 Root decomposition_Monthly k constant F00463 30619-30623 Poon GT, Maherali H. 2015. Competitive interactions between a nonmycorrhizal invasive plant, Alliaria petiolata, and a suite of mycorrhizal grassland, old field, and forest species. PeerJ 3: e1090 Incorrect values.
35 Notes_Root dynamics calculation method, Soil horizon, Soil texture, Climate, Notes_Soil P extraction method, Notes_Soil PO4 extraction method F00078, F00984, F00982, F01227, F00083, F00082 NA NA All entries in these rows should be decapitalized except for sentences, proper nouns, and abbreviations.