Focusing on diet:
* Guild: This term is often used in ecology to describe a group of species that share a similar resource, such as food. So, a "feeding guild" could refer to animals that eat the same sort of food.
* Trophic level: This describes the position of an organism in a food web based on what it eats. Animals at the same trophic level consume similar types of food. For example, herbivores are at the first trophic level, carnivores are at the second, and so on.
Focusing on habitat:
* Community: This refers to all the populations of different species living and interacting in the same area.
* Biota: This is a broader term for all the living organisms in a particular region, including plants and animals.
Combining both:
* Niche: This refers to the role an organism plays in its ecosystem, including its food sources, habitat, and interactions with other species. Animals with similar niches may share food sources and live in the same area.
Ultimately, the best term to use depends on the specific context and what aspect you want to emphasize.