Each food chain is a descriptive diagram including a series of arrows ... Figure 1 shows a simplified food web in a desert ecosystem. In this food web, grasshoppers feed on plants; scorpions ...

The Mojave Desert Land Trust is working to scout, catalogue, collect and preserve millions of seeds from 250 species and counting in a race to save an ecosystem.

A variety of ecosystems are spread across the world, each with distinctive interacting characteristics and components. They range from small (eg a freshwater pond) to global (eg the desert biome).