Under what situation(s) can a single environment be both coarse-grained and fine-grained.

Question

I was thinking in an envirnomental where many organisms exist, such as a field. To a herbivorous insect, it would be course-grained while to a cow or horse it would be fine-grained. But is this correct, or is there a better answer to the question?

Since this is not my area of expertise, I searched Google under the key words "coarse-grained fine-grained environment" to get these possible sources:

http://www.amjbot.org/cgi/content/full/92/1/101
http://links.jstor.org/sici?sici=0003-0147(197411%2F12)108%3A964%3C831%3ATROEGI%3E2.0.CO%3B2-D
http://parxxl.gforge.inria.fr/parxxl-design.pdf
http://links.jstor.org/sici?sici=0003-0147(197507%2F08)109%3A968%3C419%3ASIAFE%3E2.0.CO%3B2-H
http://www.hpc2n.umu.se/para06/papers/paper_48.pdf

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.