Predictability of thermal fluctuations influences functional traits of a cosmopolitan marine diatom

Raissa Gill, Sinead Collins, Phoebe Argyle, Michaela Larsson, Robert Fleck & Martina Doblin
Evolutionary theory predicts that organismal plasticity should evolve in environments that fluctuate regularly. However, in environments that fluctuate less predictably, plasticity may be constrained because environmental cues become less reliable for expressing the optimum phenotype. Here we examine how the predictability of +5 °C temperature fluctuations impacts the phenotype of the marine diatom Thalassiosira pseudonana. Thermal regimes were informed by temperatures experienced by microbes in an ocean simulation, and featured regular or irregular temporal sequences...
1 citation reported since publication in 2021.
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