Table 1. — Chi-square analyses of sample pairs. The actual number of individuals 

 observed is columned under (o). The expected frequency (e) of a species in a 

 sample is calculated by multiplying the sum of the species row by the sum of the 

 sample column and dividing by the total sum of both samples. Chi-square is 

 (0 _ e )2 



calculated by the formula > . 



4f e 



cells 



SAMPLE PAIR 10-10' 

 Total Population 





10 



10' 



Total 



10 



10' 



(o-eY- 



(.o-e)* 















e 



e 



e 



e 



1 



.. 671 



873 



1,544 



739.12 



804.81 



6.28 



5.78 



2 



.. 266 



163 



429 



205.38 



223.62 



17.89 



16.43 



3 



43 



31 



74 



35.43 



38.57 



1.62 



1.48 



Totals .. 



.. 980 



1,067 



2,047 



979.93 



1,067.00 



25.79 



v 2 - 



X2 - 



23.69 

 = 49.48 * 









Live Population 











10 



10' 



Total 



10 



10' 



(o-e)* 



(o-e) 2 















e 



e 



e 



e 



1 



.. 288 



484 



772 



364.71 



407.29 



16.13 



14.45 



2 



.. 203 



71 



274 



129.44 



144.56 



41.80 



37.43 



3 



.. 23 



19 



42 



19.84 



22.16 



0.50 



0.45 



Totals .. 



.. 514 



574 



1,088 



513.99 



574.01 



58.43 



v 2 — 



X2 — 



52.33 

 110.76 * 







1 



SAMPLE PAIR 14-14 



P 













Total Population 











14 



14' 



Total 



14 



14' 



(o-e)* 



(0 - *) 2 



1,678 

 9 



2,664 

 117 



4,322 

 126 



1,639.21 

 47.79 



2,702.22 

 78.78 



0.92 

 31.82 



0.54 

 18.54 



Totals .... 1,687 2,781 4,448 

 * Significant at the 95 percent level. 



1,687.00 2,781.00 



32.74 19.08 

 Xl = 51.82* 



1 



2 



14 







404 

 .. 29 



14' 







191 

 38 



Live Population 



Total 14 

 e 



595 389.18 

 67 43.82 



14' 

 e 



205.82 



23.18 



(0 — e) 2 (0 — e)* 



0.56 1.07 

 5.01 9.48 



Totals .. 



,. 433 



229 



662 



433.00 



229.00 



5.57 10.55 

 xf = 16.12 * 



65 



