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Article Reference New data on the morphology and distribution of the enigmatic Schouteden’s sun snake, Helophis schoutedeni (de Witte, 1922) from the Congo Basin
Located in Library / RBINS Staff Publications
Article Reference New insights into the systematics and molecular phylogeny of the Malagasy snake genus Liopholidophis suggest at least one rapid reversal of extreme sexual dimorphism in tail length
Located in Library / RBINS Staff Publications
Article Reference Nationwide inventory of mosquito biodiversity (Diptera: Culicidae) in Belgium, Europe
To advance our restricted knowledge on mosquito biodiversity and distribution in Belgium, a national inventory started in 2007 (MODIRISK) based on a random selection of 936 collection points in three main environmental types: urban, rural and natural areas. Additionally, 64 sites were selected because of the risk of importing a vector or pathogen in these sites. Each site was sampled once between May and October 2007 and once in 2008 using Mosquito Magnet Liberty Plus traps. Diversity in pre-defined habitat types was calculated using three indices. The association between species and environmental types was assessed using a correspondence analysis. Twenty-three mosquito species belonging to traditionally recognized genera were found, including 21 indigenous and two exotic species. Highest species diversity (Simpson 0.765) and species richness (20 species) was observed in natural areas, although urban sites scored also well (Simpson 0.476, 16 species). Four clusters could be distinguished based on the correspondence analysis. The first one is related to human modified landscapes (such as urban, rural and industrial sites). A second is composed of species not associated with a specific habitat type, including the now widely distributed Anopheles plumbeus. A third group includes species commonly found in restored natural or bird migration areas, and a fourth cluster is composed of forest species. Outcomes of this study demonstrate the effectiveness of the designed sampling scheme and support the choice of the trap type. Obtained results of this first country-wide inventory of the Culicidae in Belgium may serve as a basis for risk assessment of emerging mosquito-borne diseases.
Located in Library / RBINS Staff Publications
Article Reference Changes in Species Richness and Spatial Distribution of Mosquitoes (Diptera: Culicidae) Inferred From Museum Specimen Records and a Recent Inventory: A Case Study From Belgium Suggests Recent Expanded Distribution of Arbovirus and Malaria Vectors
Mosquito (Diptera: Culicidae) distribution data from a recent inventory of native and invading mosquito species in Belgium were compared with historical data from the period 1900-1960 that were retrieved from a revision of the Belgian Culicidae collection at the Royal Belgian Institute of Natural Sciences. Both data sets were used to investigate trends in mosquito species richness in several regions in Belgium. The relative change in distribution area of mosquito species was particularly important for species that use waste waters and used tires as larval habitats and species that recently shifted their larval habitat to artificial larval habitats. More importantly, several of these species are known as vectors of arboviruses and Plasmodium sp. and the apparent habitat shift of some of them brought these species in proximity to humans. Similar studies comparing current mosquito richness with former distribution data retrieved from voucher specimens from collections is therefore encouraged because they can generate important information concerning health risk assessment at both regional and national scale.
Located in Library / RBINS Staff Publications
Article Reference Ostracodes et lithologie du stratotype de la Formation du Mont d'Haurs (Givétien, Synclinorium de Dinant)
Located in Library / RBINS Staff Publications
Article Reference Traits allowing some ant species to nest syntopically with the fire ant Solenopsis saevissima in its native range.
Supercolonies of the red fire ant Solenopsis saevissima (Smith) develop in disturbed environments and likely alter the ant community in the native range of the species. For example, in French Guiana only 8 ant species were repeatedly noted as nesting in close vicinity to its mounds. Here, we verified if a shared set of biological, ecological, and behavioral traits might explain how these 8 species are able to nest in the presence of S. saevissima. We did not find this to be the case. We did find, however, that all of them are able to live in disturbed habitats. It is likely that over the course of evolution each of these species acquired the capacity to live syntopically with S. saevissima through its own set of traits, where colony size (4 species develop large colonies), cuticular compounds which do not trigger aggressiveness (6 species) and submissive behaviors (4 species) complement each other.
Located in Library / RBINS Staff Publications
Article Reference Leaf-litter ant communities in a pristine Guianese rainforest: stable functional structure versus high species turnover.
We compared the ant assemblages from four very heterogeneous habitats over a short-distance elevational gradient of vegetation (due to the presence of an inselberg) at the Nouragues Research Station, French Guiana. We focused on litter- dwelling ants, combining the use of pitfall traps and the Winkler method according to the Ants of the Leaf Litter Proto- col. This permitted us to note (1) a high leaf-litter ant diversity overall and a decreasing diversity gradient from the lowland rainforest to the top of the inselberg, and (2) differences in species density, composition and functional struc- ture. While the ant assemblages on the plateau and inselberg can be considered functionally similar and typical of an Amazonian rainforest, that of the transition forest, relatively homogenous, rather corresponded to an ant fauna typical of open areas. By contrast, the liana forest assemblage was unexpectedly richer and denser than the others, sheltering a litter-dwelling ant fauna dominated by numerous and abundant cryptic species. These taxonomical and functional dissi- milarities may reflect the influence of the environmental heterogeneity, which, through variable abiotic conditions, can contribute to maintaining a notably rich ant biodiversity in these Neotropical habitats.
Located in Library / RBINS Staff Publications
Inbook Reference Nutrient Recycling Starts in the Canopy: The Secretive Action of Termites
Located in Library / RBINS Staff Publications
Article Reference Book review. ANT ECOLOGY. 2010. Edited by L. Lach, C. L. Parr & K. L. Abbott. Oxford University Press, xviii + 402 pp. US $ 53 paperback
Located in Library / RBINS Staff Publications
Article Reference Book Review : Wegnez P., Ignace D., Fichefet V., Hardy M., Plume T. & Timmermann M., 2012. - Fourmis de Wallonie (2003-2011). Publication du Département de l'Etude du Milieu Naturel et Agricole (SPW-DGARNE), Série « Faune - Flore - Habitat » n°8, Gembloux
Located in Library / RBINS Staff Publications