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Data Aggregation

Occurrence data on nearly every known species are publicly available in online repositories. I harnessed this mountain of data to map the spread of invasive European frog-bit from its introduction to North America in 1932 to 2021. I manually extracted data from published and unpublished sources, including observations made by professionals and community scientists, systematic research datasets, and digital records of physical specimens housed in natural history collecions.

Read the paper

​See the Machine Learning page for one cool application of the data.

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Please note logo images are not my own.

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©2024 by Sara E. Hansen.

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