Lariviere D., Anderson V., Johnson R., Larsen R., What Is in the Bank? Assessing Persistent Soil Seed Bank Density of Sclerocactus wrightiae (Cactaceae), Diversity, 2024, 16(3):133, doi: 10.3390/d16030133
Analysis of 500 soil samples from one site in Utah documents the persistence of Sclerocactus wrightiae seeds into the next season. It compares their distribution relative to the adult stem, slope and depth, and assesses viability with a tetrazolium test. It discusses local dispersal and the possible role of ants.