This dataset contains stable isotope ratios (\(\delta^{13}C\) and \(\delta^{15}N\)), their standard deviations and sample sizes for various sources, including macroalgae, mangroves, saltmarsh, seagrass, SPOM (suspended particulate organic matter), and terrestrial grass Notice that the sample sizes for Terrestrial grass were not provided in the original source (Goni & Thomas, 2000) and were therefore arbitrarily set to 15.
bcs_siA data frame with 6 rows and 6 variables:
The source of the sample (e.g., Mangrove, Seagrass, etc.).
The stable isotope ratio of carbon (\(\delta^{13}C\)) in parts per thousand (‰).
The standard deviation of the \(\delta^{13}C\) measurements.
The sample size of the \(\delta^{13}C\) measurements.
The stable isotope ratio of nitrogen (\(\delta^{15}N\)) in parts per thousand (‰).
The standard deviation of the \(\delta^{15}N\) measurements.
The sample size of the \(\delta^{15}N\) measurements.
The study or reference from which the data were obtained.
The data and methodology are described in the following references:
Nyunja, J., Ntiba, M., & Onyari, J. (2009). Carbon and nitrogen isotopic variation in mangrove ecosystems along the Kenyan coast. Estuarine, Coastal and Shelf Science, 84(3), 377-385. DOI:10.1016/j.ecss.2009.06.001
Bulmer, R. H., Lundquist, C. J., & Schwendenmann, L. (2020). Sediment carbon and nitrogen isotopes reveal variability in estuarine food web sources. Marine Ecology Progress Series, 641, 13-26. DOI:10.3354/meps13312
Goni, M. A., & Thomas, K. A. (2000). Sources and transformations of organic matter in surface soils and sediments from a Spartina alterniflora marsh. Estuarine, Coastal and Shelf Science, 50(5), 657-679. DOI:10.1006/ecss.2000.0597
library(MixMustR)
data(bcs_si)
head(bcs_si)
#> source d(13C/12C) d(13C/12C) (SD) d(13C/12C) (n) d(15N/14N)
#> 1 Macroalgae -20.4 3.10 12 2.40
#> 2 Mangrove -27.7 1.40 15 4.40
#> 3 Saltmarsh -24.6 4.32 13 2.31
#> 4 Seagrass -15.1 3.00 20 1.20
#> 5 SPOM -19.3 2.80 24 6.20
#> 6 Terrestrial grass -13.3 0.50 15 1.69
#> d(15N/14N) (SD) d(15N/14N) (n) Study
#> 1 1.20 12 Nyunja et al. (2009)
#> 2 2.60 15 Nyunja et al. (2009)
#> 3 1.67 13 Bulmer et al. (2020)
#> 4 1.30 20 Nyunja et al. (2009)
#> 5 3.00 24 Nyunja et al. (2009)
#> 6 0.50 15 Goni & Thomas (2000) Spartina