Based on the way your question is written, I think you might be a little confused as to the concept of 'N competing species'. It is a term used not to describe the behaviour of a species, but in reference to the number of species (N) competing for resources in a specific environment.
Based on the way your question is written, I think you might be a little confused as to the concept of 'N competing species'. It is a term used not to describe the behaviour of a species, but in reference to the number of species (N) competing for resources in a specific environment.
'N competing species' is quite a specific term used globally as I described above. Grammatically speaking, it would be incorrect to use it as Jim suggests in 2, and there are no examples of this phraseology in the nitrogen competition literature.
'N" competing species is depending what you are describing in the paper. It may be "N' is number or density of particular species or the species in the competition for Nitrogen.