Aquatic terrestrial subsidies

Aquatic-terrestrial subsidies are a type of ecological resource subsidy in which materials, energy, and nutrients are transferred from aquatic to terrestrial ecosystems. Aquatic-terrestrial subsidies are typically caused by organism movement across the aquatic-terrestrial boundary. For example, emerging aquatic insects develop in streams and lakes before emerging as winged terrestrial adults. After emerging, many adult aquatic insects are eaten by terrestrial animals like spiders, birds, bats, and lizards. Because the adult aquatic insects are produced in a different ecosystem than their predators (aquatic versus terrestrial), movement of aquatic insects to terrestrial food webs is termed a subsidy.