Abiotic factors Agricultural crops Alien organisms Animal Systematics/Taxonomy/Biogeography Aquatic plants Biodiversity Biological Taxonomy Biological invasions Botany & plant sciences Coastal invasions Conservation Biology Conservation Biology/Ecology Conservation of the environment Ecological science, the Biosphere Ecology Economic aspects Ecosystems Environmental aspects Freshwater and Marine Ecology Freshwater ecosystems Invasive biota Invasive insect pests Open Access Pathogens Plant Pathology Prince Edward Islands South Africa Taxonomy & systematics Terrestrial Urban invasions