Abstract
A new lower-dimension ecological–evolutionary model of algae was proposed to describe the simultaneous dynamics of variables (population biomass) and parameters (limits of the temperature tolerance interval [a – d, a + d]). In a given periodic temperature regime, the parameters tend to certain final values, which are called evolutionarily stable (ES) values. Calculations showed that ES parameters form a rainbow structure on the plane (a, d); the farthest points of the rainbow correspond to psychrophilic (diatom) and thermophilic (blue–green) algae. Algal adaptation to two periodic environmental factors, temperature and salinity, was carried out within preset temperature and salinity tolerance ranges [a – d, a + d] and [b – c, b + c]. The domain of evolutionarily stable parameters in the plane (a, b) was found to depend on the degree of synchronism of environmental factors. The parameters lay on a linear segment in some cases, while their location on a nonlinear oval was unexpectedly possible in some other cases.
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This work was supported by a state contract with the South Research Center of the Russian Academy of Sciences (project no. AAAA-A18-118122790121-5).
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Translated by T. Tkacheva
Abbreviations: ES, evolutionarily stable.
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Il’ichev, V.G., Il’icheva, O.A. Hypotheses Concerning Algal Adaptation to Periodic Environmental Factors. BIOPHYSICS 66, 297–303 (2021). https://doi.org/10.1134/S0006350921020093
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DOI: https://doi.org/10.1134/S0006350921020093