EARTHWORMS ARE VERY IMPORTANT GRASSLAND INVERTERBRATES THAT MAINTAIN SOIL STRUCTURE. THEY ARE A DECOMPOSER.
THE MONARCH BUTTERFLY FEEDS ON PLANT LEAVES AS A LARVA, AND ON PLANT NECTAR AS AN ADULT. GRASSLANDS ARE VERY IMPORTANT HABITATS BECAUSE THESE FEEDING GROUNDS HELP THEM BUILD UP ENERGY FOR THEIR LONG JOURNEY TO SOUTHERN MEXICO, WHICH IS THEIR WINTER HOME.
RAIN IN THE GRASSLANDS, USUALLY OCCUR DURING LATE SPRING TO EARLY SUMMER. THE AVERAGE AMOUNT OF RAINFALL IS 50.8 TO 88.9 CM. SUMMER TEMPERATURES ARE WELL OVER 100 DEGREES FAHRENHEIT, WHILE WINTER TEMPERATURES CAN BE AS LOW AS -40 DEGREES FAHRENHEIT!!!
LIMITING FACTORS IN GRASSLANDS CAN BE WATER IN RIVERS THAT ARE STOPPED UP BY DAMS, SPACE CAN BE BURNED UP BY FIRES THAT BURN DOWN TREES, ANIMALS, AND OTHER TYPES OF THINGS THAT COME INTO CONTACT WITH FIRE.
MISTLETOE RELIES ON THE SILVER BIRCH TREE MAINLY FOR THE WATER AND MINERALS. IT CAN EVENTUALLY PROVE FATAL TO THEM WHERE INFESTATION IS HEAVY, THROUGH DAMAGE USUALLY RESULTS IN GROWTH REDUCTION. THIS IS AN EXAMPLE OF PARASITISM.
EGRETS ARE GENERALLY SEEN AROUND RHINOS, AS THEY FEED ON THE PARASITIC INSECTS ON ITS BODY. THIS IS MUTUALISM.