And there's more to this than questions of individual fitness.

This is the method by which individuals seek to gain more food than their siblings to increase their own individual fitness.

The school offers an extensive physical education program that promotes team play and individual fitness.

You will learn about your own individual fitness and skill levels and how you can improve these.

For example, cooperative hunting and the ability to more easily find mates are both component Allee effects, as they influence individual fitness of the species.

The most current definition of Allee effect considers the correlation between population density and mean individual fitness.

Producing more eggs during the reproductive season increases the individual fitness during the periods of reduced food availability.

However, there is also some evidence that alarm calls can increase individual fitness as well.

The walk will take an average walker roughly 12 days to complete, although this can vary depending on individual fitness, attitude, the weather, age and experience.

The first is simple ecological fitting, in which organisms track resources to form novel species interactions and increase individual fitness.