
TY  - JOUR
A1  - Griffing, B 
T1  - Selection in Reference to Biological Groups
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1969
VL  - 22
IS  - 1
SP  - 131
EP  - 142
KW  - 
UR  - https://doi.org/10.1071/BI9690131 
N2  - Index theory is applied to selection methods which use individuals or ran-domly associated groups of individuals as basic units of selection. An index is developed which combines "direct" and "associate" phenotypic values in such a way as to invariably ensure a maximum, non-negative change in the population mean. The theory is applicable to populations of groups in each of which individuals may interact in any arbitrary manner, whether such interaction be cooperative or competitive in nature. 
ER  -

