MECHANISM OF COMPETITION IN YEAST CELLS 



79 



K,=/3 



g <*> u°o 



Saccharomyces separately 



SaccharomycQS in mixed population. 



20 



30 



Hours 



HO 



so 



€0> 



Fig. 14. The growth in volume of Saccharomyces cerevisiae cultivated sepa- 

 rately and in the mixed population in two series of experiments. Anaerobic 

 conditions. From Gause ('32b). 



2 ■j+Q2'f7SSO-0-06069t 



Schizosaccharomyces separately 



K 2 ~5.80 



o_ 



Schizosaccharomyces in mixed population 



so 

 Hours 



too 



no 



HO 



160 



Fig. 15. The growth in volume of Schizosaccharomyces kephir cultivated 

 separately and in the mixed population in two series of experiments. Anaer- 

 obic conditions. From Gause ('32b). 



Having obtained in this way the potential coefficients of multiplica- 

 tion of our species (or, which means the same, the coefficients of geo- 

 metric increase) we must now according to the general plan given at 

 the beginning of this chapter pass on to a calculation of the empirical 



