Data from: Quantifying interspecific and intraspecific diversity effects on ecosystem functioning
Data files
Aug 30, 2023 version files 7.26 KB
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README.md
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Weider_Size.txt
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Weider2008Data.txt
Abstract
Rapid environmental changes result in massive biodiversity loss with detrimental consequences for the functioning of ecosystems. Recent studies suggest that intraspecific diversity can contribute to ecosystem functioning to an extent comparable to contributions of interspecific diversity. Knowledge of the relative importance of these two sources of biodiversity is essential for predicting ecosystem consequences of biodiversity loss and will aid prioritization of conservation targets and implementation of management measures. However, our quantitative insights into how interspecific and intraspecific biodiversity loss affects ecosystem functioning, and how the effects of these two sources of biodiversity loss on ecosystem functioning can be compared are still very limited. To facilitate this goal, we extend the interspecific Price partitioning method originally introduced by J. Fox in 2006, previously used to quantify species loss and gain effects on ecosystem functioning, to also account for the effects of intraspecific diversity loss and gain on ecosystem function. Using this extended version can provide the quantitative information required for answering research questions addressing correlations between interspecific and intraspecific diversity effects on ecosystem function, identifying interspecific and intraspecific groups with large effects, and assessing whether intraspecific diversity can compensate for losses in interspecific diversity. Applying this method to carefully designed experiments will provide additional insights into how biodiversity loss at different ecological levels contributes to and changes ecosystem functioning.
README
## There are two data sets that are being used
1) Weider_Size.txt: contains the body length of Daphnia genotypes of different species in 4 different food treatments
2) Weider2008Data contains the abundances of Daphnia genotypes
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Data-specific information for Weider_Size.txt
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The data set consists of three columns
*Clone: gives the different Daphnia genotypes (PX for pulex, PUL for pulicaria and HYB for hybrid species)
*Treatment: gives the different food treatments (LH: low quality high quantity, LL: low quality low quantity, HL: high quality low quantity, HH: high quality high quantity)
* Size: body length of Daphnia (mm)
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Data-specific information for Weider2008Data.txt
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The data consists of 8 columns
*Species: gives the different Daphnia species (PX for pulex, PUL for pulicaria and HYB for hybrid species)
*Clone: gives the different Daphnia genotypes (PX for pulex, PUL for pulicaria and HYB for hybrid species)
*Day: gives the day of the experiment measurements were taken
*Treatment: gives the different food treatments (LH: low quality high quantity, LL: low quality low quantity, HL: high quality low quantity, HH: high quality high quantity)
*Density: gives the density of each Daphnia clone
*AFR: gives the age of first reproduction (here not being used in the analysis)
*FreqLin: gives the relative frequency of each Daphnia clone in the total community
*FreqLinWithinSpec: gives the relative frequency of each Daphnia clone within the species
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## There are two R scripts that are being used
1) Function_RTD.R
2) Calculation_Weider.R
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Specific information for Function_RTD.R
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This function allows to extract information from apply and tapply functions
to make an easy data frame
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Specific information for Calculation_Weider.R
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This R script goes over the different steps to calculate intra- and interspecific diversity effects
to a change in biomass linked to Figure 2 in the main text