Guerrero P. C., Mardones D., Viveros N., Peña-Gómez F. T., Bustamante R. O., Evolutionary change in the germination niche between related species within Neoporteria clade (Cactaceae) is idiosyncratic to habitat type, Gayana Botánica, 2016, 73(2):177-182, doi: 10.4067/S0717-66432016000200177
The experiment compares germination of Eriosyce subgibbosa and E. villosa across four temperature regimes and five water potentials. Seeds represent one population of each species. Differences in germination probability inform discussion of how early development may contribute to plant distributions.