The emergence of 17-year cicadas, also known as periodical cicadas, is a rare and fascinating event that occurs when these insects emerge from their underground burrows after spending 17 years in a state of dormancy. This phenomenon is a result of the cicadas' unique life cycle, which is designed to optimize their chances of survival and reproduction. In this article, we will explore what happens when 17-year cicadas emerge and provide survival tips for those who may be affected by their presence.
Life Cycle of 17-Year Cicadas
The life cycle of 17-year cicadas begins when the female cicada lays her eggs in a tree branch or twig. The eggs hatch into nymphs, which fall to the ground and burrow into the soil, where they feed on the roots of trees and plants. The nymphs remain underground for 17 years, during which time they undergo a series of molts, or sheddings of their skin, as they grow and develop. After 17 years, the nymphs emerge from the ground, climb up a tree or other vertical surface, and undergo a final molt, emerging as adult cicadas.
Emergence and Mating
When the 17-year cicadas emerge, they are initially soft-bodied and white, but they soon harden and turn black. The adult cicadas have a distinctive appearance, with large eyes, a long, narrow body, and transparent wings. The males begin to sing, producing a loud, buzzing noise that can be heard for miles, in an attempt to attract females. The females are attracted to the males’ songs and mate with them, after which they lay their eggs and begin the cycle again.
| Stage of Life Cycle | Duration | Description |
|---|---|---|
| Egg stage | 6-8 weeks | Eggs are laid in tree branches or twigs and hatch into nymphs |
| Nymph stage | 17 years | Nymphs feed on tree roots and undergo a series of molts as they grow and develop |
| Adult stage | 4-6 weeks | Adult cicadas emerge, mate, and lay eggs, after which they die |
Survival Tips
While the emergence of 17-year cicadas can be a fascinating event, it can also be a challenge for those who are not prepared. Here are some survival tips to help you navigate the experience:
- Be prepared for noise: The males' singing can be loud and persistent, so it's a good idea to have earplugs or headphones on hand.
- Protect your pets: The cicadas can be a temptation for pets, especially dogs, so it's a good idea to keep them indoors or under close supervision.
- Watch your step: The cicadas can be slippery, so it's a good idea to wear shoes with good traction when walking outside.
- Keep your car clean: The cicadas can leave behind a sticky substance that can damage car paint, so it's a good idea to wash your car regularly.
Cicada-Related Hazards
While the 17-year cicadas are generally harmless, there are some potential hazards to be aware of. For example, the cicadas can cause problems for drivers, as their bodies can be slippery and cause cars to skid. Additionally, the cicadas can be a nuisance for outdoor events, such as weddings or festivals, as their noise and presence can be distracting.
However, it's worth noting that the cicadas are not typically aggressive and do not bite or sting. They are also an important food source for many animals, so they play a vital role in the ecosystem.
How long do 17-year cicadas live?
+The adult 17-year cicadas typically live for 4-6 weeks, during which time they mate and lay eggs.
What do 17-year cicadas eat?
+The nymphs of the 17-year cicadas feed on the roots of trees and plants, while the adults do not eat at all.
Can 17-year cicadas harm humans?
+No, 17-year cicadas are not typically aggressive and do not bite or sting. They are generally harmless to humans.
