Herbarium collections remain essential in the age of community science

Isaac Eckert (), Anne Bruneau, Deborah A. Metsger, Simon Joly, T. A. Dickinson and Laura J. Pollock
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Isaac Eckert: McGill University
Anne Bruneau: Québec Centre for Biodiversity Science
Deborah A. Metsger: Royal Ontario Museum
Simon Joly: Université de Montréal
T. A. Dickinson: Royal Ontario Museum
Laura J. Pollock: McGill University

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract The past decade has yielded more biodiversity observations from community science than the past century of traditional scientific collection. This rapid influx of data is promising for overcoming critical biodiversity data shortfalls, but we also have vast untapped resources held in undigitized natural history collections. Yet, the ability of these undigitized collections to fill data gaps, especially compared against the constant accumulation of community science data, remains unclear. Here, we compare how well community science (iNaturalist) observations and digitized herbarium specimens represent the diversity, distributions, and modeling needs of vascular plants in Canada. We find that, despite having only a third as many records, herbarium specimens capture more taxonomic, phylogenetic, and functional diversity and more efficiently capture species’ environmental niches. As such, the digitization of Canada’s 7.3M remaining specimens has the potential to more than quintuple our ability to model biodiversity. In contrast, it would require over 27M more iNaturalist observations to produce similar benefits. Our findings indicate that digitizing Earth’s remaining herbarium specimens is likely an efficient, feasible, and potentially critical investment when it comes to improving our ability to predict and protect biodiversity into the future.

Date: 2024
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DOI: 10.1038/s41467-024-51899-1

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