Opinion

To Save Life on Earth, Bring Back Taxonomy

In 2009, the botanist Naomi Fraga was hunting a flower without a name near Carson City, Nev. Ms. Fraga saw that the plant was going extinct in real time as its desert valley habitat was bulldozed to make way for Walmarts and housing developments. But in order to seek legal protections for it, she had to give it a name.

The diminutive yellow flower became the Carson Valley monkeyflower or, officially, Erythranthe carsonensis, allowing conservationists to petition the U.S. Fish and Wildlife Service to safeguard it under the Endangered Species Act. If their petition is approved, the flower will go from unknown to critically important in less than a generation, at least as far as Western science is concerned.

Taxonomy, the science of naming and classifying organisms, is the foundation for conserving disappearing plants and animals. Yet the field — often viewed as an archaic, dusty tradition that harks back to intrepid 19th-century botanists describing the plants of newly colonized lands — is dying. Several decades after the taxonomic frenzy of 1830 to 1920, when Western scientists went deep into far-flung regions of the world, molecular genetics revolutionized our ability to classify species, and began vacuuming up funding while the analog field of taxonomy was left to languish.

With genetic sequences, we can now identify the fundamental building blocks of life, but we need to be able to interpret genetic data in a way that humans can understand and use. That’s taxonomy’s job. And if we want to save what’s left of the vast diversity of life on Earth, we’ll have to reinvest in this science. How we delineate between species determines what we choose to save.

The dire state of taxonomy in the United States might be best illustrated by the Flora of North America, the definitive 30-volume attempt to name and describe every plant species here and in Canada. The project began in the 1980s, but it still hasn’t been completed because its contributors have struggled to secure consistent funding. By the time the last volume is completed in 2026, it will have to be revised immediately. For instance, its first volume, on ferns, released in 1993, is utterly out of date as new species have been discovered and nonnative species have moved in. Imagine trying to understand a 2024 Camry with a manual from 1993. That’s what botanists and conservationists trying to maintain biodiversity are working with.

The Flora of North America has been the victim of a broad shift in our scientific priorities as a nation. The National Science Foundation is the main funder of American botany. But since the 1980s and 1990s, its funding has increasingly gone to hypothesis-driven, laboratory-based research. When the Flora’s contributors ask university botanists to work on the project, it often must be done pro bono.

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