' H (diversity) 



J ( evenness) 



I 



50 r 



r 



y 



/ Total Species per Sample 



eon per Core and 95-percent Confidence Interval 



J L 



a. ■— > 



05 O O 



CO O Z 



1971 



1972 



1973 



Figure 14. 



Species diversity and evenness of the total fauna 

 (upper graph) and number of species of the total fauna 

 (lower graph) (arrow indicates disposal) . 



47 



