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Article Reference Is Lasius bicornis (Förster, 1850) a very rare ant species? (Hymenoptera: Formicidae)
Since its description based on a single alate gyne by the German entomologist Arnold Förster, Lasius bicornis (Förster, 1850), previously known as Formicina bicornis, has been sporadically observed in the Eurasian region and consequently been characterized as very rare. Here, we present the Belgian situation and we consider some explanations for the status of this species.
Located in Library / RBINS Staff Publications 2018
Article Reference Camponotus fallax (Nylander, 1856), an expected species finally discovered in Belgium (Hymenoptera: Formicidae)
In this paper we announce the first observation of the ant Camponotus fallax (Nylander, 1856) in Belgium and add it to the Belgian checklist. Specimens were collected in Sint-Martens-Voeren with an eclector trap mounted on a dead fruit tree.
Located in Library / RBINS Staff Publications 2018
Article Reference Survey on the distribution of the Sweet potato weevil, Cylas species-complex in Ghana (Coleoptera: Brentidae)
The Sweet potato weevils of the genus Cylas are the most destructive pests of sweet potato and are widely distributed in Africa. The aim of this study was to identify and document the species of Cylas occurring in sweet potato production zones in Ghana. A survey was conducted in 23 localities in 2015 from July to December in seven regions in Ghana in order to determine the identity of the pest. We collected nine thousand and two specimens from Central, Eastern, Greater-Accra, Northern, Volta, Upper-East, and the Upper-West regions. Two species were identified: Cylas brunneus Fabricius, 1797 and Cylas puncticollis Boheman, 1833. Cylas puncticollis occurred in all regions and represented 6,107 specimens (68%), while 2,895 of the specimens (32%) could be assigned to C. brunneus. The latter is restricted to the southern sector including Volta, Central, Eastern and Greater Accra Regions. When considering both species in the southern sector, the Volta Region accounted for 3,117 specimens (48%) followed by 1,447 (22%), 987 (15%), and 980 (15%), from the Central, Eastern, and Greater-Accra Regions, respectively. The dominant species in southern and northern sector was C. puncticollis.
Located in Library / RBINS Staff Publications 2016
Article Reference Results of ant collections on Santa Cruz Island within the framework of the 2012 Global Taxonomy Initiative Ant Course at Galápagos (Hymenoptera: Formicidae)
During a ten-days ant course carried out in November 2012 within the framework of a Belgian Focal Point to the Global Taxonomy Initiative GTI type 2 grant, eight students and four instructors collected 22 ant species at ten sites distributed along an altitudinal gradient on Santa Cruz Island in the Galápagos Archipelago (Ecuador). Disturbed and urbanized zones as well as natural areas were visited. We discuss the results and link the collected species to altitude and vegetation types occurring on Santa Cruz Island.
Located in Library / RBINS Staff Publications
Article Reference Revision of the Eurybrachidae (XV). The Oriental genus Purusha Distant, 1906 with two new species and a key to the genera of Eurybrachini (Hemiptera: Fulgoromorpha: Eurybrachidae)
Located in Library / RBINS Staff Publications 2020
Article Reference Extension of the phasmid genus Presbistus to Cambodia with a new species and notes on genitalia and captive breeding (Phasmida, Aschiphasmatidae, Aschiphasmatinae)
Located in Library / RBINS Staff Publications 2022 OA
Techreport Reference Preface. in: Degraer, S. et al. (Eds.) (2017). Environmental impacts of offshore wind farms in the Belgian part of the North Sea: A continued move towards integration and quantification.
Located in Library / RBINS Staff Publications 2017
Techreport Reference Executive summary. in: Degraer, S. et al. (Eds.) (2017). Environmental impacts of offshore wind farms in the Belgian part of the North Sea: A continued move towards integration and quantification.
Located in Library / RBINS Staff Publications 2017
Article Reference A new species of Derobrachus Audinet-Serville, 1832 (Coleoptera, Cerambycidae, Prioninae) from a cloud forest in Honduras
Located in Library / RBINS collections by external author(s)
Article Reference Chromosomal inversions from an initial ecotypic divergence drive a gradual repeated radiation of Galápagos beetles
Island faunas exhibit some of the most iconic examples where similar forms repeatedly evolve within different islands. Yet, whether these deterministic evolutionary trajectories within islands are driven by an initial, singular divergence and the subsequent exchange of individuals and adaptive genetic variation between islands remains unclear. Here, we study a gradual, repeated evolution of low-dispersive highland ecotypes from a dispersive lowland ecotype of Calosoma beetles along the island progression of the Galápagos. We show that repeated highland adaptation involved selection on multiple shared alleles within extensive chromosomal inversions that originated from an initial adaptation event on the oldest island. These highland inversions first spread through dispersal of highland individuals. Subsequent admixture with the lowland ecotype resulted in polymorphic dispersive populations from which the highland populations evolved on the youngest islands. Our findings emphasize the significance of an ancient divergence in driving repeated evolution and highlight how a mixed contribution of inter-island colonization and within-island evolution can shape parallel species communities.
Located in Library / RBINS Staff Publications 2023