DIATOM RESEARCH – Determining geographical range and alien status in diatoms

by Jana Kulichová |

One of the papers recently published on the Diatom Research website that I find particularly interesting is David Mann’s study on the distribution of three well distinguishable species of marine benthic diatoms. David examined the morphology of the three ‘flagship species’ and critically evaluated taxonomic and identification issues that may have led to false negative or false positive occurrence records in the past. Based on a thorough review of available distribution records of the three species and a consideration of potential dispersal vectors, David proposed nine criteria for establishing whether the geographical range of a marine or freshwater species reflects their native range or an introduction outside its natural range.

David G. Mann (2022) Determining geographical range and alien status in diatoms: three instructive case histories of species newly recorded in the British Isles, including a non-native marine species from the Pacific, Diademoides luxuriosa, Diatom Research, DOI: 10.1080/0269249X.2022.2078428