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Article Reference Going Dutch: Invasion pathways and current European distribution of non-native land flatworm species belonging to Geoplaninae and Bipaliinae with focus on the Netherlands
Non-native land flatworms can have a negative impact on local ecosystems, due to their voracious appetites for earthworms or snails. Accurate knowledge on the distribution of non-native populations of land flatworms is necessary to design effective policy to control their spread across Europe. The aim of this study is to address the spatiotemporal distribution of selected species of non-native land flatworms (Geoplaninae and Bipaliinae) in the Netherlands, and provide their current distribution and introduction pathways in a pan-European perspective. Specimens of Obama spp., Bipalium kewense and Diversibipalium multilineatum were reported across selected Dutch gardens, greenhouses, plant nurseries or garden centers. European distribution of these planarians species was reconstructed using previously published datasets and from records available on GBIF. Morphological species identification was supported by DNA barcoding using a portion of the 28S rDNA marker. Introduction pathways were addressed via haplotype networks based on COI mtDNA. In total, 27 specimens of non-native land flatworms were collected in the Netherlands. Their different spatiotemporal distribution pattern indicates differences in tolerance to environmental conditions in Northern Europe between B. kewense restricted to greenhouses and D. multilineatum found in gardens. Generally, an increasing trend in the number of records of Obama nungara is observed in the Netherlands and in Europe, with the highest number of records per country reported in France (1.428) followed by the Netherlands (149) and Italy (64). The high numbers of France are, however, artificial and originate from communication towards the public, which has not been as pronounced in other European countries. Genetic analyses suggest multiple introductions of O. nungara in Europe. The combination of morphological and molecular species identification revealed the presence of Obama anthropophila being the first record of this species outside its native range in Brazil. Our results further support the established status of these species in Europe and highlight the importance of citizen scientists in non-native species research.
Located in Library / RBINS Staff Publications 2025
Article Reference Unveiling hidden species diversity within Southern Ocean Iphimediidae (Crustacea, Amphipoda) through DNA and 3D-geometric morphometrics, with the description of 10 new species
The Antarctic shelf benthos is threatened by climate-related environmental changes and anthropogenic stressors. A baseline knowledge of biodiversity and species distribution ranges is essential for effective monitoring and conservation. Here, we integrate DNA-based species delimitation methods with morphological analyses to explore species diversity within Antarctic Iphimediidae. Our results reveal that ten nominal species are complexes of multiple species, most of which can be distinguished by small but consistent morphological differences. We formally describe ten of these new species: Stegopanoploea brevidentata sp. nov., Maxilliphimedia acutilobata sp. nov., Maxilliphimedia oliveri sp. nov., Echiniphimedia spinosior sp. nov., Echiniphimedia maxima sp. nov., Iphimediella longidentata sp. nov., Iphimediella brachyodonta sp. nov., Iphimediella longilobata sp. nov., Labriphimedia adeliae sp. nov., and Labriphimedia anneninae sp. nov. Most previously recorded circum-Antarctic iphimediid species are found to consist of regionally distributed species. Furthermore, we apply 3D-geometric morphometrics on the Gnathiphimedia sexdentata complex to investigate whether ‘cryptic’ species can be differentiated by variation in continuous morphological traits. This method provides additional diagnostic characters for the morphological identification of two G. sexdentata clades. This integrative taxonomy study increases the number of nominal Antarctic iphimediid species from 39 to 49, with 14 additional putative species requiring further study for formal description.
Located in Library / RBINS Staff Publications 2025
Article Reference Redescription of Teretoctopus alcocki Robson, 1932 (Cephalopoda: Enteroctopodidae), and comments on the nomenclature of “inkless octopus” genera
Two species have been attributed to the genus Teretoctopus Robson, 1929: T. indicus Robson, 1929, the type species of the genus, and T. alcocki Robson, 1932. Of the four original T. alcocki syntypes, we relocate and redescribe the remains of two of them, and designate one of them the lectotype. Of three original T.indicus syntypes, it is probable that one is lost permanently, but the whereabouts of two of them remains unknown. What we can discern from remaining T. alcocki type material, augmented with descriptions of these specimens by Anne Massy and Guy Robson, is compared with what is known of the type species of this genus, T. indicus. A rediagnosis of the genus Teretoctopus is proffered, and relationships between this genus and others historically referred to as “inkless octopuses” are evaluated. While Teretoctopus has nomenclatural priority over Vulcanoctopus González et Guerra, 1998 and Muusoctopus Gleadall, 2004, for which it is possibly the senior synonym, and shares many characters and states with Ameloctopus Norman, 1992, further taxonomic resolution of relationships among these genera must await description and molecular analyses of accurately identified Teretoctopus specimens from the Gulf of Oman and northern Arabian Sea.
Located in Library / RBINS Staff Publications 2026 OA
Article Reference On the arachnofauna of the Jean Massart botanical garden (Brussels-Capital Region, Belgium)
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Two new species of Spiniphiline (Gastropoda: Cephalaspidea) from the Middle and Eastern Atlantic Ocean
Located in Library / RBINS Staff Publications 2021
Article Reference A Review of Species in Fusceulima (Gastropoda: Eulimidae) from the NE Atlantic Ocean and the Western Mediterranean Sea with Illustration of Key Type Specimens
Located in Library / RBINS Staff Publications 2021
Article Reference Spatiotemporal Variability in Phytoplankton Size Class Modulated by Summer Monsoon Wind Forcing in the Central Arabian Sea
Located in Library / RBINS Staff Publications 2024
Article Reference Spatiotemporal Dynamics of Suspended Particulate Matter in Water Environments: A Review
Located in Library / RBINS Staff Publications 2024
Article Reference Rediscovery of Camponotus herculeanus (Linnaeus, 1758) in Belgium (Hymenoptera: Formicidae)
Camponotus herculeanus (Linnaeus, 1758) was rediscovered in Belgium near Ouren. Throughout the spring and summer of 2023, workers were collected on multiple occasions in a Picea abies stand near the Belgian-German boarder.
Located in Library / RBINS Staff Publications 2024
Article Reference Estimation of Mud and Sand Fractions and Total Concentration From Coupled Optical‐Acoustic Sensors
Located in Library / RBINS Staff Publications 2024