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The Harvey effect on fire ants

Possibly another reason to curse that storm.

Rice University ecologists are checking to see if Hurricane Harvey’s unprecedented floods gave a competitive boost to fire ants and crazy ants, two of southeast Texas’ least favorite uninvited guests.

Extreme weather events like Harvey are expected to become more likely as Earth’s climate changes due to greenhouse gas emissions, and scientists don’t understand how extreme weather will impact invasive pests, pollinators and other species that affect human well-being.

With support from the National Science Foundation’s Rapid Response Research (RAPID) program, Rice ecologists Tom Miller, Sarah Bengston and Scott Solomon, along with their students, are evaluating whether Harvey increased opportunities for invasion by exotic ants.

“Hurricane Harvey was, among other things, a grand ecological experiment,” said Miller, the principal investigator on the grant and the Godwin Assistant Professor of Ecology and Evolutionary Biology in Rice’s Department of BioSciences. “It offers a unique opportunity to explore whether a single extreme-weather event can re-shuffle an entire community of organisms.”

[…]

“We’re conducting monthly pitfall sampling at 19 established sites in the Big Thicket, a national preserve near Beaumont,” said [Sarah] Bengston, an ant expert, co-principal investigator on grant and Huxley Research Instructor of BioSciences. “Rice’s team has been working at these same sites for three years, and we know fire ants and tawny crazy ants, which are each invasive species, had begun to penetrate the intact native ecosystems in the park before the hurricane. We now want to know whether Harvey accelerated this invasion process.”

The RAPID funding will allow the team to document changes in ant communities and test whether changes in response to the hurricane are transient or represent new stable states.

I found the press release after seeing this Chron story based on it. All I can say is I hope the finding is negative.

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