We test for functional plasticity in autotomy threshold in the caudal lamellae of Enallagma damselfly larvae by experimentally manipulating non-lethal cues from predatory dragonfly larvae. ![]() We model an autotomy threshold that optimally balances how the benefits of surviving predator attack versus the costs of losing an appendage vary with predator presence. Variation in the ease of appendage removal among populations suggests that autotomy performance is under selection, evolves, or is phenotypically plastic, although the latter has never been experimentally tested. Spiders spin webs that dips into the water bodies too.Adaptive autotomy is the self-amputation of an appendage in response to external stimuli that benefits survival. This allows them to spot approaching dragonflies. Birds can strike with precision (they are hunters, after all) at high speed – hence they can catch dragonflies easily. The biggest predators of dragonflies are birds, bats, and spiders. They are said to be afraid of fish because they see them as a threat this is why they will not fly near them. ![]() However, there is one predator that dragonflies are terrified of fish!ĭragonflies are very sensitive to movements around them, and they can be easily scared by the movement of water. They are so fast that they can evade predators such as birds, fish, and other dragonflies by flying directly into the predator’s mouth or eyes. They are also known for their amazing speed, their ability to hover in midair for long periods of time, and their ability to fly at over 50 miles per hour. What is a dragonfly scared of?ĭragonflies are scared of Death of Fish! Dragonflies are one of the most beautiful insects in the world, with their elegant bodies and beautiful wings. Lizards are another possible enemy for dragonflies because they can nibble on their wings or legs, causing them to fall from the sky and die from lack of oxygen in their bloodstream. Birds will swoop down on a dragonfly and either kill it by pecking at its head or wings or will drop it on the ground where it dies from lack of oxygen in its bloodstream. Fish also use their fins to grab the legs of a dragonfly and pull it underwater, where it drowns.īirds are another enemy of dragonflies. They eat them by swallowing them whole or breaking their wings off and spitting them out while the dragonfly is still alive. However, they use camouflage to avoid being seen by predators, and they fly low to the ground so that they are not easily seen from above.įish are the most common enemy of dragonflies. Dragonflies are very good at avoiding these dangers. Lizards can also cause problems for dragonflies because they eat many different types of insects, including dragonflies. Birds also attack dragonflies by pecking at them with their beaks. Fish such as catfish and carp eat dragonfly larvae. The main enemy of dragonflies is the fish that eats them. Adult dragonflies aren’t big enough to eat other adult dragonflies.ĭragonflies have enemies too. Adult dragonflies also eat mosquitoes, some moths, grasshoppers, and crickets. The nymphs live in water or on land, depending on the species.Īdult dragonflies eat small aquatic creatures such as fish and newts. The larvae of dragonflies, called nymphs, are much smaller than the adults and have wings, but they don’t fly. The baby dragonflies use their long front legs to grasp prey in midair before swallowing it head first.ĭragonflies are beautiful and graceful insects that look like they come from a fairy tale. The larvae grow into winged adults over a period of two or three weeks after hatching from the water. They lay their eggs on the surface of ponds, where they hatch into larvae that look like tiny tadpoles. The adult dragonflies do not eat each other or swallow their young whole. Adult dragonflies are food for lizards, birds, bats, and also spiders. ![]() The dragonfly nymphs are eaten by fish, newts, frogs, and other larger aquatic creatures.
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