Following a disturbance to a site, every species that arrives at the site survives. Once an individual plant establishes itself, it! holds its space and is not replaced until it dies, at which point any other plant in the community can then grow in its space. As a result, over time, short-lived species are replaced by long-lived species. Which model of succession best explains this pattern? Facilitation Inhibition Tolerance

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.