My understanding of a typical ecosystem is that it is like a pyramid, with the mass of prey at the base and the apex predators at the peak.
However, the arthropod ecosystem in my house seems to be the inversion of this. When I see critters, I mostly see spiders and centipedes, the apex predators. Rarely do I see anything else. This seems upside-down. Shouldn't the apex predators of an ecosystem be relatively rare?