Cares R. A., Muñoz P. A., Medel R., Botto-Mahan C., Factors affecting cactus recruitment in semiarid Chile: A role for nurse effects?, Flora - Morphology, Distribution, Functional Ecology of Plants, 2013, 208(5–6):330-335, doi: 10.1016/j.flora.2013.04.005
Observations of young Eulychnia acida and Echinopsis chiloensis in Las Chinchillas Reserve compare open ground and the vicinity of five shrub species. The study relates young-cactus distribution to microhabitat availability and examines subsequent growth and survival. Shrub association and the fate of an established plant provide separate levels of nurse-effect assessment.