Density dynamics and cell size and shape dynamics of two freshwater ciliate species (Colpidium striatum and Paramecium aurelia) in a full factorial design of 4 different salinity (0, 0.75, 1.5 and 3 NaCl g/L) and 4 different temperature (20, 22, 24 and 26°C) conditions.
"ID" : is the unique ID of each experimental bottles. This way we can link each video to each bottle over time.
"Species": Col = colpidium striatum, Pau = paramecium aurelia, PC = competition treatment
"Culture" : states the same either mono(culture - single species) or mixed culture (competition)
"Salinity" : different salt levels
"Temperature" : different temperature levels
"Replicate" : replicates
"Date" : is the julian date of the year which I like to use to plot the time series, it takes into account if we 'skipped' a day, or whether it is measured in the morning or afternoon
"Time" : categorical time points, does not take into account skipping days, looks at total time points
"True.date" : the actual date of the measurement
"predicted_species" : using the species identification algorithm which species it is, this is only implemented on the competition treatment
"density" : the average density of a sample
"mean_area" : bio area , here average bio-area across individuals of that sample
"mean_ar" : cell shape, ar = aspect ratio of minor to major cell size axis
"sd_mean_area" : the standard deviation of mean_area
"sd_mean_ar" : the standard deviation of mean aspect ratio
"n." : the number of individuals that have been used to estimate the trait values from
"act.time" : helps to make a plot from 0 to end point in time (basically julian.date - max(julian.date))
density: #individuals / mL
mean_area: µm²
mean_ar : unitless
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