Search publications of the members of the Royal Belgian institute of natural Sciences
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Ostracod prove that the F/F boundary mass extinction was a major and abrupt crisis
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Ostracod and rock facies associated with the Devonian-Carboniferous boundary series in the Puech de la Suque section, Montagne Noire, France
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Ostracods and sedimentology of the Devonian-Carboniferous stratotype section (La Serre, Montagne Noire, France)
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Ostracods and fore-reef sedimentology of the Frasnian-Famennian boundary beds in Kielce (Holy Cross Mountains, Poland).
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Ostracods and lithofacies of the Devonian-Carboniferous boundary beds in the Avesnois, North of France
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Ostracods from the late Frasnian of the Neuville railway section (Dinant Synclinorium, Belgium): relation to the Kellwasser Event
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Morphological and molecular characterization of larval trematodes infecting the assassin snail genus Anentome in Thailand
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Australian Cleotychini planthoppers: review of the genus Cleotyche Emeljanov, 1997 with three new species (Hemiptera: Fulgoromorpha: Dictyopharidae)
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Le fabuleux voyage de Rapana venosa (Valenciennes, 1846) de l’Asie de l’Est à la Mer du Nord et aux Amériques
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Description d’une nouvelle espèce du sud du Vietnam appartenant au genre Sarmydus Pascoe, 1867 (7e contribution à l’étude du genre Sarmydus Pascoe, 1867) (Coleoptera, Cerambycidae, Prioninae)
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Urban rats as carriers of invasive Salmonella Typhimurium sequence type 313, Kisangani, Democratic Republic of Congo
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Aegosoma maopaseuthi n. sp., nouveau Cerambycidae du Laos (Coleoptera, Cerambycidae, Prioninae, Aegosomatini)
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New deep-sea Atlantic and Antarctic species of Abyssorchomene De Broyer, 1984 (Amphipoda, Lysianassoidea, Uristidae) with a redescription of A. abyssorum (Stebbing, 1888)
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Updated status of Saitis barbipes (Simon, 1868) (Araneae, Salticidae) in Belgium
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Enhanced surveillance of monkeypox in Bas-Uélé, Democratic Republic of Congo: the limitations of symptom-based case definitions
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First observation of Aedes albopictus (Skuse, 1894) (Diptera: Culicidae) in Tshuapa province (Boende), Democratic Republic of the Congo
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New records of Penthicodes lanternfly species from Thailand and Malaysia and nomenclatural notes on the genus (Hemiptera: Fulgoromorpha: Fulgoridae)
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Dispersal capacity underlies scale-dependent changes in species richness patterns under human disturbance
- Changes in the species richness of (meta-)communities emerge from changes in the relative species abundance distribution (SAD), the total density of individuals, and the amount of spatial aggregation of individuals from the same species. Yet, how human disturbance affects these underlying diversity components at different spatial scales and how this interacts with important species traits, like dispersal capacity, remain poorly understood. Using data of carabid beetle communities along a highly replicated urbanization gradient, we reveal that species richness in urban sites was reduced due to a decline in individual density as well as changes in the SAD at both small and large spatial scales. Changes in these components of species richness were linked to differential responses of groups of species that differ in dispersal capacity. The individual density effect on species richness was due to a drastic 90% reduction of low-dispersal individuals in more urban sites. Conversely, the decrease in species richness due to changes in the SAD at large (i.e., loss of species from the regional pool) and small (i.e., decreased evenness) spatial scales were driven by species with intermediate and high dispersal ability, respectively. These patterns coincide with the expected responses of these dispersal-type assemblages toward human disturbance, namely, (i) loss of low-dispersal species by local extinction processes, (ii) loss of higher-dispersal species from the regional species pool due to decreased habitat diversity, and (iii) dominance of a few highly dispersive species resulting in a decreased evenness. Our results demonstrate that dispersal capacity plays an essential role in determining scale-dependent changes in species richness patterns. Incorporating this information improves our mechanistic insight into how environmental change affects species diversity at different spatial scales, allowing us to better forecast how human disturbance will drive local and regional changes in biodiversity patterns.
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The ants of the Galápagos Islands (Hymenoptera, Formicidae): a historical overview, checklist, and identification key
- The Galápagos ant fauna has long been understudied, with the last taxonomic summary being published almost a century ago. Here, a comprehensive and updated overview of the known ant species of the Galápagos Islands is provided with updated species distributions. The list is based on an extensive review of literature, the identification of more than 382,000 specimens deposited in different entomological collections, and recent expeditions to the islands. The ant fauna is composed of five subfamilies (Dolichoderinae, Dorylinae, Formicinae, Myrmicinae, and Ponerinae), 22 genera, 50 species, and 25 subspecies, although three species (Crematogaster crinosa Mayr, 1862, Camponotus senex (Smith, 1858), and Solenopsis saevissima (Smith, 1855)) are considered dubious records. Finally, an illustrated identification key of the species found in the archipelago is presented.
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