In our 2022-2026 Strategic Plan, NatureServe commits to playing an even greater role in protecting biodiversity by providing the best available science, data, and technology to support biodiversity conservation. Learn more about the values that are core to NatureServe and how we are investing in our future.
| Conservation Status and Ecology of the Monarch Butterfly in the United States
Here we report the results of a global species assessment for the largest plant taxon evaluated to date under the International Union for Conservation of Nature (IUCN) Red List Categories and Criteria, the iconic Cactaceae (cacti). We show that cacti are among the most threatened taxonomic groups assessed to date, with 31% of the 1,478 evaluated species threatened, demonstrating the high anthropogenic pressures on biodiversity in arid lands.