CWT-LTER Data Set Summary

Accession: 4063 CWT Research Theme: Organic Matter/Decomposition
Contributors: Catherine Pringle, ,
Title: Terrestrial-Stream Biodiversity Stream Datasets from the Ball Creek Watershed at the Coweeta Hydrologic Laboratory, Otto, NC
Abstract: Since species loss is predicted to be nonrandom, it is important to understand the manner in which those species that we anticipate losing interact with other species to affect ecosystem function. We tested whether litter species diversity, measured as richness and composition, affects breakdown dynamics in a detritus-based stream. Using full-factorial analyses of single- and mixed-species leaf packs (15 possible combinations of four dominant litter species; red maple [Acer rubrum], tulip poplar [Liriodendron tulipifera], chestnut oak [Quercus prinus], and rhododendron [Rhododendron maximum]), we tested for single-species presence/absence (additive) or species interaction (nonadditive) effects on leaf pack breakdown rates, changes in litter chemistry, and microbial and macroinvertebrate biomass.
Key Words: Acer rubrum, composition, detritus-based ecosystem, ecosystem functioning, leaf litter, Liriodendron tulipifera, litter, litter decomposition, movement of organic matter, nonadditive effects, Quercus prinus, Rhododendron maximum, richness, species diversity, streams
LTER Core Area: Movement of Organic Matter
CWT Themes: Organic Matter/Decomposition, Aquatic Invertebrate Ecology, Aquatic Macroinvetebrate Ecology, Fungal Productivity, General Nutrient Chemistry
Study Type: Coweeta Terrestrial Study
Study Period: 10-Jan-2004 to 31-Jul-2004
Site References:
BALLCRK -- Ball Creek, Macon County, North Carolina, USA
CWTBASIN -- Coweeta Basin, Macon County, North Carolina, USA
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Data Table: 4063_litter_chemistry (Litter chemistry data for dataset 4063, 540)

Access: Public (released 23-Jun-2014)

Metadata: Text (ESA FLED), Basic EML, Complete EML

Data Formats: Spreadsheet CSV Text Format, EML-described Text Format, Tab-delimited Text Report with Statistical Summary, GCE Data Toolbox Format, Standard MATLAB Variables Format

Column List:

Column Name Units Type Description (hide)
1 Time days floating-point Time in days; represents the sampling day from when leaf packs were deployed on January 10, 2004 along a 75-m reach of Ball Creek. Litter was incubated in Ball Creek from January 10, 2004 to July 31, 2004.
2 Block None alphanumeric string A block represents one of the four replicate blocks. A block is a stream location, and four stream locations were utilized in this study.
3 Treatment None integer Treatment; Packs within each experimental block were grouped in array of 15 treatments. Each treatment number directly corresponds to a particular species composition in a leaf pack. For instance, Treatment "1" corresponds to Composition "L" (Liriodendron tulipifera). There are 15 possible single-species and mixed-species combinations.
4 Richness Count floating-point # of leaf litter species; Richness is the number of species present in mixed species packs (2, 3, or 4). In a single-species pack, the richness is 1.
5 Composition None alphanumeric string Tree species composition refers to which particular species are present together in mixed-species packs (tulip poplar, Liriodendron tulipifera [L]; red maple, Acer rubrum [A]; chestnut oak, Quercus prinus [Q]; and rhododendron, Rhododendron maximum [R]).
6 Proportion_AFDM ratio floating-point Proportion of mass (ash-free dry mass) remaining at time (t)
7 C_N ratio floating-point % Carbon:% Nitrogen ratio (both per unit AFDM)
8 Percent_C % floating-point % Carbon per unit AFDM
9 Percent_N % floating-point % Nitrogen per unit AFDM
10 Percent_P % floating-point % Total Phosphorus per unit AFDM
11 Percent_Cellulose % floating-point % Cellulose per unit AFDM
12 Percent_Hemicellulose % floating-point % Hemicellulose per unit AFDM
13 Percent_Lignin % floating-point % Lignin per unit AFDM
14 Percent_Condensed_Tannins % floating-point % Condensed Tannins per unit AFDM
15 Percent_Hydrolysable_Tannins % floating-point % Hydrolyzable Tannins per unit AFDM
16 Percent_Total_Phenolics % floating-point % Total Phenolics per unit AFDM

Data Table: 4063_litter_processing (Litter processing data for dataset 4063, 180)

Access: Public (released 23-Jun-2014)

Metadata: Text (ESA FLED), Basic EML, Complete EML

Data Formats: Spreadsheet CSV Text Format, EML-described Text Format, Tab-delimited Text Report with Statistical Summary, GCE Data Toolbox Format, Standard MATLAB Variables Format

Column List:

Column Name Units Type Description (hide)
1 Time days floating-point Time in days; represents the sampling day from when leaf packs were deployed on January 10, 2004 along a 75-m reach of Ball Creek. Litter was incubated in Ball Creek from January 10, 2004 to July 31, 2004.
2 Block None alphanumeric string A block represents one of the four replicate blocks. A block is a stream location, and four stream locations were utilized in this study.
3 Richness count floating-point Richness is the number of species present in mixed species packs (2, 3, or 4). In a single-species pack, the richness is 1.
4 Treatment None integer Treatment; Packs within each experimental block were grouped in array of 15 treatments. Each treatment number directly corresponds to a particular species composition in a leaf pack. For instance, Treatment "1" corresponds to Composition "L" (Liriodendron tulipifera). There are 15 possible single species and mixed species combinations.
5 Composition None alphanumeric string Tree species composition refers to which particular species are present together in mixed species packs (tulip poplar, Liriodendron tulipifera [L]; red maple, Acer rubrum [A]; chestnut oak, Quercus prinus [Q]; and rhododendron, Rhododendron maximum [R]).
6 Fungi_Biomass mg floating-point Fungi biomass (mg/g AFDM)
7 Invertebrate_Biomass mg floating-point Invertebrate biomass (mg/leaf pack)
8 Shredder_Biomass mg floating-point Shredder biomass (mg/leaf pack)
9 Bacteria_Biomass mg floating-point Bacteria biomass (mg/g AFDM)
10 Invertebrate_Abundance count floating-point Invertebrate abundance (# per leaf pack)
11 Invertebrate_Richness count floating-point Invertebrate richness (per leaf pack);
12 Invertebrate_Evenness count floating-point Invertebrate evenness
13 Invertebrate_Shannons_Diversity count floating-point Invertebrate Shannon's Diversity (per leaf pack)
14 Invertebrate_Simpsons_Diversity count floating-point Invertebrate Simpson's Diversity (per leaf pack)