MouseEats:

GrasshoppersSnails

Salt marsh plants

RatEats:

SparrowsGrasshoppers

SnailsSalt marsh plants

OwlEats:Rats

SparrowsDucks

sandpipers

HawkEats:

ShrewsMicerats

DuckEats:Krill

Salt marsh plantsAlgae

GrasshoppersSnails

SandpiperEats:Krillalgae

SparrowEats:Krill

Salt marsh plantsGrasshoppers

snails

ShrewEats:

GrasshoppersSnailsmice

KrillEats:

Salt water algae

FishEats:Krill

Salt marsh plantsSalt water algae

HeronEats:Fish

GrasshopperEats:

Salt marsh plants

Salt water algaeEnergy Source:

SunlightCO2

WaterSalt marsh plants

Energy Source:Sunlight

CO2

Water

SnailEats:

Salt marsh plantsSalt water algae