10.5061/DRYAD.JT1FB
Brennan, Georgina L.
University of Edinburgh
Collins, Sinead
University of Edinburgh
Data from: Growth responses of a green alga to multiple environmental drivers
Dryad
dataset
2016
Simple Comparative Model
Chlamydomonas reinhardtii
Multiple environmental drivers
2016-05-04T00:00:00Z
2016-05-04T00:00:00Z
en
https://doi.org/10.1038/nclimate2682
140188 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
One feature of global change is that biota must respond not to single, but
to multiple environmental drivers. By growing a model photosynthetic
microbe in environments containing between one and eight different
drivers, including changes in CO2, temperature, and pH, in different
combinations, we show that the number as well as the identities of drivers
explain shifts in population growth rates. This is because the biotic
response to multiple environmental drivers depends on the response to the
single dominant driver, and the chance of a driver of large effect being
present increases with the number of drivers. Interactions between drivers
slightly counteract the expected drop in growth. Our results demonstrate
that population growth declines in a predictable way with the number of
environmental drivers, and provide an empirically supported model for
scaling up from studies on organismal responses to single drivers to
predict responses to large numbers of environmental drivers.
DataDryad_mixed_model_290415Raw data for mixed model analysis, plotting
and creating case studies for further analysis. See Read me section in r
script "mixed_model_DataDryad_290415.r"All_lines_030515.csv file
for plotting case study plot using r script
"mixed_model_DataDryad_290415.r"mixed_model_DataDryad_290415R
script for mixed model analysis of raw data supplied and
plotting.SimulationThe effect of sampling from a finite number of possible
environmental drivers was explored using a simulation written in R