The natural habitat of grasshoppers is meadows and fields, but they will live in any area that has abundant food sources. Grasshoppers live throughout the world, except the extremely cold North Pole and South Pole. They are not territorial and do not make nests. Migratory species sometimes group together in millions or billions of grasshoppers and search for new habitats with plentiful food.
Grasshoppers are herbivorous insects that eat leaves, grasses and cereal crops they find in their habitat. They feed mostly during the day. According to the Arizona-Sonora Desert Museum's website, grasshoppers that eat a variety of plants regularly have optimal growth and breeding.
The biggest threats to grasshoppers are certain types of flies that lay their eggs in the same location as grasshopper eggs. Once the flies hatch, they feed on the grasshopper eggs. Some kinds of flies lay eggs directly on a grasshopper. They can do this even while the grasshopper is flying. Once they hatch, the baby flies consume the grasshopper. The many other predators of grasshoppers include snakes, spiders, birds, mice and beetles.
Grasshoppers have many adaptations that make them suitable for their habitats. They are normally gray, green and brown. These colors camouflage them in their home's grass and leaves. The males of some grasshopper species attract females with their brightly colored wings. Bright colors also are a warning sign for predators to stay away. Other grasshopper species consume poisonous plants, making them toxic to predators. Another special defense mechanism emits "tobacco juice," a brown liquid, at a predator that picks them up. Also, the end of the female's abdomen includes sharp points that they use to lay their eggs underground, according to the Animal Corner website.
Grasshopper populations are directly affected by their habitat's weather conditions. Abrupt changes in weather have a big impact on grasshopper growth. Early, warm springs encourage early hatching. If the warm weather is followed by a sudden cold front, though, the grasshoppers' development will be stunted. Also, if rainy and cloudy weather occurs after a hot, early spring, disease spreads more easily among grasshoppers. When summer is abnormally cool and autumn comes early, grasshoppers grow more slowly, and the egg laying season is shortened.