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Article Reference Holocene palaeoecology and human–environmental interactions at the coastal Black Sea Lake Durankulak, northeastern Bulgaria
Abstract The environmental changes (vegetation history, human impact and land use, influence of the Black Sea) in the area of Lake Durankulak, northeastern Bulgaria, were reconstructed and synthesized for the last ca. 8000 years. The palaeoecological information derived from various proxies (pollen, plant macrofossils, molluscs, sediments) was compared on a regional scale with the evidence from the nearby coastal lakes Shabla–Ezeretz and Bolata. The Early Holocene xerothermic steppe vegetation, dominated by Chenopodiaceae, Artemisia and Poaceae species, and accompanied by stands of trees in moister habitats, was transformed after 6000 cal. BP into a forest-steppe, comprising oak woods with Carpinus betulus, Ulmus, Tilia, Acer. This vegetation pattern has been periodically modified, depleted and replaced by arable land or xerothermic herbaceous communities enriched with anthropophytes and ruderals, particularly after the intensification of human activities since 3300 cal. BP. The archaeobotanical evidence from the region has provided valuable information about the occupation phases and subsistence strategy of the local people since the Late Neolithic (5300 cal. BC/7250 cal. BP). Periods with cultivation of cereals (Triticum, Hordeum) and/or stock-breeding activity were interrupted by abandonment of the settlements and the arable land due to unfavourable environmental changes. The periodical connection/isolation of Lake Durankulak with the Black Sea and the periods of marine influence were recorded by changes in the composition of the fossil molluscan fauna and the lithology of the sediments, and chronologically confirmed by radiocarbon dates. The development of the coastal lakes throughout the largest part of the Holocene has been also considerably influenced by the fluctuations of the Black Sea level.
Located in Library / RBINS Staff Publications
Inproceedings Reference Holocene paleoclimate reconstruction based on stalagmite studies from Lebanon.
Located in Library / RBINS Staff Publications
Article Reference Holothuria (Selenkothuria) parvispinea n. sp. (Echinodermata, Holothuroidea, Holothuriidae) with key to the sub-genus Selenkothuria
Located in Library / RBINS Staff Publications
Article Reference HOME project and the creation of an ethical policy – two Belgian initiatives
Summary Background Starting in December 2019, the “HOME: Human Remains Origin(s) Multidisciplinary Evaluation” project has been granted funding for a duration of 2 years, focusing on historical collections of human remains in a network of seven institutional partners. Through the BRAIN-be 2.0 Pillar 2 “Heritage science”, call, the Belgian Science Policy Office (BELSPO) provided funding for Provenance research. The call “Heritage Science” concerns scientific research in support of the federal – scultural, scientific and historical – heritage and in particular that in Belgian Federal Scientific Institutions (FSIs). Objectives and expected results The HOME project will result in a multidisciplinary evaluation of the historical collections of human remains in Belgium, particularly in the FSIs. The deliverables of the project include reports on the collections in the different institutions detailing the inventories. The reports will also advise on how to best manage the diverse human remains collections in Belgium as well as propose management scenarios in response to existing and future requests of repatriation. There is also no best practice in Belgium on how to manage human remains collections. As a separate initiative but with parallel aims of the HOME project, an independent group from the Royal Museum of Art and History (RMAH) is establishing a Belgian policy about the study, preservation and exhibition of human remains in a museum context.
Located in Library / RBINS Staff Publications 2021
Article Reference Homenaje a Claude Massin (1948‒2021), especialista en pepinos de mar (Tribute to Claude Massin (1948‒2021), specialist in sea cucumbers)
Located in Library / RBINS Staff Publications 2021
Article Reference Homology and functional morphology of the sexual dimorphism in the antenna of Sclerocypris SARS, 1924 (Crustacea, Ostracoda, Megalocypridinae)
Located in Library / RBINS Staff Publications
Article Reference Host lifestyle and parasite interspecific facilitation mediate co- infection in a species-poor host–parasite system
Located in Library / RBINS Staff Publications 2024
Article Reference Host Shifts from Lamiales to Brassicaceae in the Sawfly Genus Athalia
Located in Library / RBINS Staff Publications
Article Reference How ancient are ancient asexuals?
Located in Library / RBINS Staff Publications
Article Reference How common is trophobiosis with hoppers (Hemiptera: Auchenorrhyncha) inside ant nests (Hymenoptera: Formicidae)? Novel interactions from New Guinea and a worldwide overview
Trophobiotic interactions between ants and honeydew-providing hemipterans are widespread and are one of the key mechanisms that maintain ant super-abundance in ecosystems. Many of them occur inside ant nests. However, these cryptic associations are poorly understood, particularly those with hoppers (suborder Auchenorrhyncha). Here, we study tree-dwelling ant and Hemi­ptera communities in nests along the Mt. Wilhelm elevational gradient in Papua New Guinea and report a new case of this symbiosis between Pseudolasius Emery, 1887 ants and planthoppers. Furthermore, we provide a worldwide review of other ant-hopper interactions inside ant-built structures and compare their nature (obligate versus facultative) and distribution within the suborder Auchenorrhyncha. The novel interactions were observed in nests located at the tree trunk bases or along the whole trunks. Only immature planthopper stages were found inside nests, so full species identifications were not possible. However, nymph morphology and molecular data (18S and COI genes) indicated four related species of the family Flatidae (infraorder Fulgoromorpha) associated with Pseudolasius. Ant-planthopper occurrences were relatively rare (6% of all trophobiotic interactions) and peaked at mid-elevation (900 m above sea level). Pseudolasius was the only genus associated with planthoppers in the communities, with most cases monopolised by a single species, P. breviceps Emery, 1887. In contrast, all other ant genera tended various scale insects (Sternorrhyncha: Coccoidea). This apparent partner-specificity is rare: Worldwide, there are only about ten reported cases of obligate symbiosis in ant nests, distributed in five of the thirty-three Auchenorrhyncha families. Those trophobioses are randomly dispersed across the Auchenorrhyncha phylogeny, and thus likely originated multiple times independently. Further research on both adult and nymph hopper life history is needed to answer how these symbioses, notably rare in hoppers compared with other hemi­pterans, are maintained.
Located in Library / RBINS Staff Publications 2018