In ecological terms, community what refers to the total number of trophic levels and the number of species in each.

In ecological terms, the term "community" refers to a group of different species that live in the same geographical area and interact with each other. However, the question seems to be referring to two different concepts: trophic levels and species richness.

1. Trophic levels: These are the levels in a food chain where different organisms function as consumers. The first trophic level consists of producers (like plants), the second level consists of herbivores, the third of carnivores, and so on.

2. Species richness: This is the number of different species represented in an ecological community, landscape or region. It is one measure of biodiversity.

So, in the context of an ecological community, the total number of trophic levels would refer to the number of steps in the food chain from primary producers to top predators. The number of species in each would refer to the species richness at each of those trophic levels.