Possible Impacts of the Invasive Plant Rubus niveus on the Native Vegetation of the Scalesia Forest in the Galapagos Islands

Rubus niveus, an invasive plant from Asia, significantly threatens the native Scalesia forest in Santa Cruz Island, Galápagos. Research found that areas with 60% or more cover of R. niveus exhibit drastically reduced native species richness and altered vegetation structure, suggesting this is a critical threshold for ecological impact. The study used correlation analysis to link R. niveus cover gradients with biotic (native plant diversity) and abiotic factors (light, soil properties). These findings propose that limiting R. niveus to 40% cover could help preserve the integrity of native ecosystems, offering a practical target for conservation efforts.

Rentería, J. L., Gardener, M. R., Panetta, F. D., Atkinson, R., & Crawley, M. J. (2012). Possible Impacts of the Invasive Plant Rubus niveus on the Native Vegetation of the Scalesia Forest in the Galapagos Islands. PLoS ONE, 7(10), e48106. https://doi.org/10.1371/journal.pone.0048106