Arthropod Virtual Dissection Lab by: Tina Liu-Vu-PAP Bio-4
Caelifera - The General Information
What habitats do grasshoppers live in? Most grasshoppers prefer dry open habitats with lots of grass and other low plants, though some species live in forests or jungles. Many of the grassland species invade farmer's fields too.
What adaptations have grasshoppers made to survive better in the environment? - Grasshoppers usually have large eyes, and are colored to blend into their environment, usually a combination of brown, gray or green. In some species the males have bright colors on their wings that they use to attract females. A few species eat toxic plants, and keep the toxins in their bodies for protection. They are brightly colored to warn predators that they taste bad.
Grasshoppers: its predators and prey
Grasshoppers have many predators, many include: wasps, ants, praying mantis, spiders, centipedes, frogs, toads, lizards, snakes, birds, and small mammals especially shrews.
Basic Food Web
This is a very basic food web example. In this diagram, the grasshoppers eat the berries, and the grasshoppers are then consumed by the frog. Grasshoppers are most often the primary consumer.
Grasshoppers are herbivores, they eat plants. They mostly eat leaves, but also flowers, stems and seeds. Sometimes they also scavenge dead insects for extra protein.
Basic Food Web
Evolutionary relationship of a grasshopper (cladogram)
Grasshopper - Dorsal view
3 pairs of jointed legs
Body in regions
Wings are present
Mouth parts are present
Ventral nerve cord
Malpighan tube - excretory organ
Open circulatory system
Grasshopper - ventral view
Click here for more information about the respiratory, digestive, reproductive, circulatory, and nervous system of a grasshopper!
This is a simple diagram of the grasshopper's respiratory system. It depicts the spiracles bringing the oxygen in and out.
This is a very whole depiction of the respiratory system where it shows the spiracles in the grasshopper throughout the grasshopper's whole body, and the path the oxygen takes throughout the body.
This is simplified version of the previous picture, but it depicts the same message of the spiracles oxygen path through the body.
DID YOU KNOW...
Most grasshoppers can only survive the winter as an egg; the adults all die when it gets cold.
No grasshoppers are known to be endangered.
Crustacea - the general information
How do we classify crayfish? Crayfish are classified into Kingdom Animalia, Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Decapoda, and Suborder Pleocyemata.
Where do crayfish live? Rivers and brooks are the main living habitat for the crayfish due to their water clarity and thin ice conditions. Freezing water conditions are enough to destroy crayfish habitat and that’s a main reason they thrive in rivers of moving water.
What adaptations do crayfish have? Crayfish have two big pincers that help tear food apart. When threatened, crayfish often raise their pincers high and wave them around. Some also use their front pincers to help dig burrows. If a crayfish loses a leg or pincer, it grows back, usually during the animal's next molting cycle.Crayfish adapted eyes on short stems that move around, allowing them to see in all directions just by turning the stems. They also have two pairs of sensitive antennae that help detect movement in the water as well as chemicals transmitted through the water.
Crayfish: the friends, the foes, and the food
The crayfish have many predators, many include: raccoon, fox, owls, basses, hawks, bluegill, catfish, turtles, and even other crayfish.
Example of a Food Web
This is an example of a basic food web. Crayfish are usually secondary consumers. Many crayfish are depicted as receiving and giving energy to the specimens around them because they eat remains of the dead animals.
Anything decaying at the bottom or near is a great eat meal for them. Dead insects, worms, algae types, dead fish, and so forth. Due to how fast crayfish actually are, they will even catch live fish that are found right in front of them.
Example of a Food Web
Evolutionary relationship of the crayfish (cladogram)
Green gland - excretory system
Interested in learning more about the functions, inside and out of the crayfish? Click the button!
This is a simple diagram of the internal attachments of the walking legs and the gills.
This is a real depiction of the gills and the walking legs.
This diagram shows specifically how the walking leg is attached to the gill.
Map of the concentrations of crayfish in the United States
Over 350 of the 500 total crayfish species lives in the United States alone
Crayfish are also called craw-fish, crawdads and mud bugs.
Crayfish live on every continent except Africa and Antarctica.
The colors of a crayfish can be sandy yellow, pink, red, dark brown, and blue.