The eBird data used revealed a strong correlation between interspecific competition and bird elevation inhabitation. For example, different species of birds fall into different elevation boundaries.

SUMMARY (1) The importance of interspecific competition relative to other factors in affecting the distribution and local coexistence of three rockpool Daphnia species is evaluated using experimental ...

We created experimental patches with one, two or three sizes of seeds, and recorded the number of species, and numbers of individuals of each species of birds exploiting the seeds in winter. Bird ...

The example of the car was used as an analogy, not as an argument. Any population that persists for more than a few generations must be controlled: any car that progresses more than a few yards ...