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'''Direct Fitness''' or '''Darwinian Fitness''' is a central tenet of the [[Theory of evolution]]. It is the measurement of an individual [[organism|organism's]] ability to reproduce. Direct fitness is measured as the proportion of genes a given individual contributes to the next generation due to its direct reproductive efforts. This can be contrasted with [[inclusive fitness]], which also includes the indirect fitness measure of genes contributed to the next generation based on aid given to relatives that are not direct descendants.  

'''Direct Fitness''' or '''Darwinian Fitness''' is a central tenet of the [[Theory of evolution]]. It is the measure of an individual [[organism|organism's]] ability to reproduce. Direct fitness is measured as the proportion of genes a given individual contributes to the next generation due to its direct reproductive efforts. This can be contrasted with [[inclusive fitness]], which also includes the indirect fitness measure of genes contributed to the next generation based on aid given to relatives that are not direct descendants.  

==References==

==References==