Cicadas Emerge on Cape Cod After 17 Years Underground

BARNSTABLE, Massachusetts (AP) — After 17 years underground, periodical cicadas are emerging in parts of Cape Cod and southeastern Massachusetts. This once-in-a-generation event is marked by the return of Brood XIV, with cicadas expected to make their presence known this May and June.

Scientists label cicadas that appear every 17 years as part of different ‘broods,’ using Roman numerals to track them. Brood XIV is making headlines as the last significant emergence was in 2008.

Russell Norton, an Extension Educator for Barnstable County, shared fond memories of cicadas from his childhood, saying, ‘The sound of cicadas triggers nostalgia and excitement.’ He anticipates their emergence every 17 years. As cicadas emerge, males will create loud buzzing sounds, reaching up to 100 decibels, to attract females.

Late May to early June marks the beginning of adulthood for cicadas. Males buzz loudly on hot days, while females lay their eggs in tree twigs by mid-summer. Once the eggs hatch, the tiny nymphs will burrow underground, continuing their cycle for another 17 years. Adults, however, typically live for only 3 to 4 weeks.

While cicadas do not directly harm plants, young trees might suffer minor damage when females lay eggs inside their twigs, causing “flagging” where twigs die and turn brown. Forest ecosystems benefit from cicadas, as they serve as food for various wildlife and help enrich soil when they decompose.

Concerns arise with climate change potentially altering the populations of cicadas. Chris Simon, a senior research scientist at the University of Connecticut, noted that warmer temperatures lead to earlier cicada appearances. ‘Once the population drops, they’re vulnerable to being eaten by predators,’ Simon explained.

For residents in Cape Cod and surrounding areas, it’s a thrilling time as they can observe these unique insects. Coastal Massachusetts will likely see the biggest cicada emergence, and cicada sightings can be reported to help scientists track their populations.

As Cape Cod prepares for the return of these insects, experts encourage everyone to enjoy the spectacle responsibly while keeping an eye on young trees.