Search publications of the members of the Royal Belgian institute of natural Sciences
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Superfamily Empidoidea. Family Dolichopodidae
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In memoriam Konjev Desender 1956-2008
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Notes on some rare genera of Hybotidae and Empididae (Diptera) from temperate regions in Thailand
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In memoriam Dr. Konjev Desender (1956-2008), entomologist and evolutionary ecologist
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A new Syndyas Loew, 1857 (Diptera, Hybotidae, Hybotinae) from mangroves in Singapore, with a review of the Oriental and Australian species
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New Hybos species from Oriental China (Diptera: Empididae)
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Two new species of the genus Tachydromia Meigen (Diptera: Hybotidae) from Malaysia
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A new Chersodromia Walker (Diptera: Hybotidae) from shore of the Sea of Azov (Russia)
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Drapetis flavipes Macquart (Diptera, Hybotidae) new for the Belgian Fauna, with a re-description of the species and a preliminary key to the West-European species of Drapetis
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Anthracologisch onderzoek van houtskoolbranderskuilen
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Notes on Chersodromia from Portugal, Spain and France with the description of a new brachypterous species (Diptera, Hybotidae, Tachydromiinae)
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The genus Tachydromia Meigen (Diptera: Hybotidae) from Africa
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Distribution of the genus Culicoides (Diptera: Ceratopogonidae) along the Scheldt and its tributaries in Flanders with special attention for the pest species Culicoides riethi
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Asilidae (Diptera) from mangrove, an unusual habitat fro robber flies (Souhteast Asia, Singapore)
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Sélection de charbon de bois pour datation radiocarbone Villers-le-Bouillet – le Marais
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Chapter 17. Flight interception traps for arthropods
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Sélection de charbon de bois pour datation radiocarbone Villers-la Ville
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Archaeobotanical evidence on the Neolithisation of Northeast Bulgaria in the Balkan-Anatolian context: chronological framework, plant economy and land use
- The study presents archaeobotanical analyses of four Early Neolithic sites (Koprivets, Orlovets, Dzhulyunitsa, Samovodene) from Northeast Bulgaria. Those archaeobotanical data are linked to comprehensive series of 14C dates for the early Neolithic in northeastern Bulgaria allowing their attribution to high resolution radiocarbon chronology. In the considered sites the dominating cereal crop during the Early Neolithic is hulled barley (Hordeum vulgare var. vulgare), followed by einkorn (Triticum monococcum) and few emmer (Triticum dicoccum) what is a clear difference from the southern parts of Bulgaria where during the early Neolithic the dominating cereal crops are einkorn and emmer. Further principal crops, present from the earliest phases of the Neolithic in the region are lentil – Lens culinaris, pea – Pisum sativum, grass pea – Lathyrus sativus/cicera and flax – Linum usitatissimum. Wide spectrum of finds of gathered plants (at least 11 taxa) reflects the use of the natural vegetation resources. Useful for reconstructing the vegetation and land use in the Neolithic are also wood charcoal identifications, indicating apart of oak forests also presence of open vegetation, riparian forests and wetlands. The relatively open vegetation in the surrounding of the early Neolithic settlements could be one of the reasons why the corresponding locations were chosen by the Neolithic people to settle there. On the other hand this open vegetation could be caused by the Neolithic land use and animal husbandry, which have also led to certain reduction of the forests in the immediate surroundings of the settlements.
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A link between host dispersal and parasite diversity in two sympatric cichlids of Lake Tanganyika
- 1. A major goal in ecology is to unravel how species assemblages emerge and how they are structured across the landscape. Host–parasite systems are particularly interesting in this context, as limited host dispersal may promote the differentiation of parasite communities. 2. We examined whether the patterns of species diversity in Cichlidogyrus, a genus of monogenean parasitic flatworms with a direct life cycle, are consistent with the hypothesis that parasite diversity is driven by host dispersal. This was carried out by comparing two sympatric cichlid hosts (Tropheus moorii and Simochromis diagramma) with contrasting dispersal abilities. Genetic connectivity among host populations along the Zambian shoreline of Lake Tanganyika was estimated using microsatellite genotyping. Cichlidogyrus parasites were isolated and identified morphologically to the species level. 3.Simochromis diagramma, a host with a high dispersal capacity, was infected by a low number of Cichlidogyrus species, and the parasite assemblages were similar among host populations. In contrast, T. moorii, a host with a low dispersal capacity, was infected by a large number of Cichlidogyrus species, and the parasite assemblages differed strongly among host populations. These outcomes were thus as expected from the hypothesis. 4. Because of the strong host specificity of these Cichlidogyrus species, a lack of connectivity among host populations might facilitate allopatric speciation of the parasite.
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A remarkable new species of Rhaphium Meigen (Diptera, Dolichopodidae) from Sri Lanka
