Ortega-Ramos, P., Mezquida, E. T. and Acebes, P. 2020. Ants indirectly reduce the reproductive performance of a leafless shrub by benefiting aphids through predator deterrence. Plant Ecology. 221, pp. 91-101. https://doi.org/10.1007/s11258-019-00995-0
Virtanen, R., Johnston, A. E., Crawley, M. J. and Edwards, G. R. 2000. Bryophyte biomass and species richness on the Park Grass Experiment, Rothamsted, UK. Plant Ecology. 151, pp. 129-141. https://doi.org/10.1023/A:1026533418357