Evolutionarily stable germination strategies with time-correlated yield.
We investigate the effect of auto-correlated yield on the evolutionarily stable germination fraction of dormant seeds. By using both analytics and numerics, we first show that in a regime of small fluctuations a positive correlation reduces dormancy and a negative correlation enhances dormancy. By extending the numerical analysis we also show that in the regime of large fluctuations a more complex picture emerges where also negative correlations can reduce dormancy.
Valleriani
Angelo
A
Max Planck Institute of Colloids and Interfaces, Theory Division D-14424 Potsdam, Germany. angelo.valleriani@mpikg.mpg.de
D005075:Biological Evolution; D003627:Data Interpretation, Statistical; D017753:Ecosystem; D053476:Extinction, Biological; D018525:Germination / Q000502:physiology*; D015233:Models, Statistical; D009026:Mortality; D011156:Population Density; D011157:Population Dynamics; D011336:Probability; D011891:Rain; D012621:Seasons; D012639:Seeds / Q000502:physiology*; D013269:Stochastic Processes; D013997:Time Factors