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  • A better estimate for tick numbers with ‘citizen science’ data

    A team led by School of Arts & Sciences biologists found a way to account for biases in data collected by members of the public, using it to create a comprehensive abundance map of the tick responsible for transmitting Lyme disease.
    Side by side maps of the northeastern United States representing 2016 and 2015 with darker shading in certain counties.
    By correcting for collector biases in a citizen science dataset of black-legged tick abundance, the researchers were able to extrapolate tick numbers across the northeast United States. (Image: Courtesy of Tam Tran) 

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  • A world shaped by water and access
    Three people test water below a sand dam.

    Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

    (Image: Courtesy of Griffin Pitt)

    A world shaped by water and access

    Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

    Oct 8, 2025