Tracking the Spider’s Spread in Tennessee

Gatlinburg, Tennessee – An invasive species known as the Joro spider, which originates from East Asia, has made its presence felt far beyond its native lands. The National Park Service is reaching out to the community for help in monitoring its spread.

Recently, park rangers noted sightings of this spider in the Great Smoky Mountains National Park, though it remains unclear how rapidly the species is expanding along the East Coast.

The Joro spider was first identified in Georgia around 2013 and has since been found in various southern states. Its distinctive features include a striking yellow abdomen with blue stripes, banded black and yellow legs, and characteristic golden webs, making it quite easy to spot.

While not considered dangerous to humans, this spider poses a threat to local spider biodiversity and could disrupt ecosystems.

Research from experts at the University of Georgia indicates that the spider’s high metabolic rate helps it adapt to cooler climates, thus increasing its chances of spreading further north.

Interestingly, previous studies focused on the golden silk spider, which indeed made a similar move from tropical regions to the Southeast over a century ago, but it encounters difficulties in colder weather. In contrast, the Joro spider seems more resilient.

In Great Smoky Mountains National Park, rangers have observed more sightings, particularly around the Cade Cove area in eastern Tennessee.

In an effort to understand the Joro spider’s spread better, the National Park Service is inviting visitors to document any sightings. If someone encounters a Joro spider, they can easily upload photographs using the free iNaturalist app. This citizen science approach provides crucial data to help manage and understand this invasive species.

As enthusiasm grows among the public to engage in reporting and documenting these spiders, scientists anticipate being able to monitor the Joro spider’s expansion more effectively and conduct future research.