Vacuum Before Entering Antarctica

Tourists in Antarctica.Credit: © Julia Whitty.

Let our journalists help you make sense of the noise: Subscribe to the Mother Jones Daily newsletter and get a recap of news that matters.


Invasive species are considered one of the biggest threats to Antarctica—especially as the frozen continent melts and becomes fertile ground for species moving down from the north.

Now a new paper in PNAS quantifies for the first time just how many plant seeds came into Antarctica in 2007-2008 from tourists, scientists, and research-station crews.

The researchers arrived at these finding by vacuuming the clothes, boots, packs, and camera bags of more than 850 scientists, tourists, support personnel, and ships’ crew. Here’s what they found:

  • Each visitor carried an average of 9.5 seeds.
  • A total of 71,000 seeds were imported into Antarctica that year (calculated).

They also found that while many more tourists than scientists visit Antarctica annually (tourists: ∼33,054; science and crew: ∼7,085), yet more scientists and crews carried seeds:

  • 20% of tourists carried seeds
  • 40% of science crews carried seeds 

What can be done about it? Syd Perkins at Science Now writes of a few simple fixes:

Tourists can clean their equipment thoroughly, including vacuuming their gear bags and emptying the pockets of their outerwear, especially if they’ve recently visited arctic or alpine environments where they could have inadvertently picked up seeds of cold-adapted plants. Also, scientists can pay attention to where cargo destined for Antarctica is stored, especially if it’s been stored outdoors. [Much equipment spends half the year in the Antarctic and the other half in the Arctic.] 

Maybe a clean-room shakedown at Antarctic launching ports to apprehend alien stowaways?

FACT:

Mother Jones was founded as a nonprofit in 1976 because we knew corporations and the wealthy wouldn't fund the type of hard-hitting journalism we set out to do.

Today, reader support makes up about two-thirds of our budget, allows us to dig deep on stories that matter, and lets us keep our reporting free for everyone. If you value what you get from Mother Jones, please join us with a tax-deductible donation today so we can keep on doing the type of journalism 2020 demands.

payment methods

FACT:

Mother Jones was founded as a nonprofit in 1976 because we knew corporations and the wealthy wouldn't fund the type of hard-hitting journalism we set out to do.

Today, reader support makes up about two-thirds of our budget, allows us to dig deep on stories that matter, and lets us keep our reporting free for everyone. If you value what you get from Mother Jones, please join us with a tax-deductible donation today so we can keep on doing the type of journalism 2020 demands.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate