The findings of this study reveal that plants can evaluate the density and competitive ability of their neighbors and tailor their responses accordingly. (sciencedaily.com)
However, also in humans there is huge diversity in competitiveness, and individuals with highest competitive ability often seem least prudent in the exploitation of their resources. (sciencedaily.com)
It is not evident that increasing size always improves competitive ability, but I do not mean to get into that issue. (religion-online.org)