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Mode de vie et affinités de Paschaterium (Condylarthra, Hyopsodontidae) d'après ses os du tarse
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Les os du tarse de Paschatherium dolloi de Dormaal sont décrits et analysCs fonctionnellement. L'astragale possède une trochlée en poulie dissymétrique, une large cupule mediale pour la malléole du tibia, un col court. Le calcanéum a un tubercule péronéen bien développé et distal. Les facettes entre les deux os reflètent leur mobilité relative. L'ensemble des caractères indiquent une locomotion rapide, des mouvements de flexion-extension étendus et de fréquentes rotations du pied. Paschatherium est interprété comme un arboricole de type sciuridé. Les comparaisons effectuées avec le Macrocranion de Dormaal et un Hyopsodus nord-am6ricain montrent: des ressemblances partielles entre les astragales de Paschatherium et Macrocranion, probablement dues à des convergences fonctionnelles; une grande similitude des calcanéums de Paschatherium et Hyopsodus, indiquant probablement leur parenté. Nous confirmons le placement de Paschatherium dans les condylarthres hyopsodontidés. Les diff6rences entre les astragales de Paschatherium et Hyopsodus indiquent une divergence adaptative marquée entre les deux genres. Les ressemblances entre l'astragale de Paschatherium et celui des hyracoïdes nous font spéculer sur un possible scénario adaptatif concernant l'origine de ces derniers, scénario qui va à l'encontre du concept de Pantomesaxonia. Avec d'autres caractères. ces ressemblances pourraient suggérer une parenté des hyopsodontidés et des hyracoïdes (et téthythères).
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RBINS Staff Publications
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MODIRISK: Mosquito vectors of disease, collection, monitoring and longitudinal data from Belgium
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The MODIRISK project studied mosquito biodiversity and monitored and predicted biodiversity changes, to actively prepare to address issues of biodiversity change, especially invasive species and new pathogen risks. This work is essential given continuing global changes that may create suitable conditions for invasive species spread and the (re-)emergence of vector-borne diseases in Europe. Key strengths of MODIRISK, in the context of sustainable development, were the links between biodiversity and health and the environment, and its contribution to the development of tools for describing the spatial distribution of mosquito biodiversity. MODIRISK addressed key topics of the global Diversitas initiative, which was a main driver of the Belspo ‘Science for a Sustainable Development’ research program. Three different MODIRISK datasets were published in the Global Biodiversity Information Facility (GBIF): the Collection dataset (the Culicidae collection of the Museum of Natural History in Brussels); the Inventory dataset (data from the MODIRISK inventory effort); and the Longitudinal dataset (experiment data used for risk assessments.
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RBINS Staff Publications 2022
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Molecular analysis of the Baikalodrilus species flock (Clitellata, Naididae), an endemic genus to Lake Baikal (Siberia, Russia)
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RBINS Staff Publications 2016
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Molecular and morphological evidence for several species within the cosmopolitan eurybathic deep-sea lysianassoid amphipod Eurythenes gryllus sensu lato
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RBINS Staff Publications
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Molecular data elucidate species limits and some relationships of Ploceus weavers
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RBINS Staff Publications
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Molecular Identification of an Invasive Sarotherodon Species from the Atchakpa Freshwater Reservoir (Ouémé River Basin, Benin) and Comparison within S. melanotheron Using COI Markers
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RBINS Staff Publications 2021 OA
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Molecular taxonomy and phylogeography of the endemic Cuban terrestrial gastropod Emoda sagraiana (Helicinidae)
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RBINS Staff Publications 2016
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More than just a name: Colonel Messager and his correspondents
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RBINS Staff Publications 2019
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Morphological evidence for early dog domestication in the European Pleistocene: New evidence from a randomization approach to group differences
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The antiquity of the wolf/dog domestication has been recently pushed back in time from the Late Upper Paleolithic (~14,000 years ago) to the Early Upper Paleolithic (EUP; ~36,000 years ago). Some authors questioned this early dog domestication claiming that the putative (EUP) Paleolithic dogs fall within the morphological range of recent wolves. In this study, we reanalyzed a data set of large canid skulls using unbalanced‐ and balanced‐randomized discriminant analyses to assess whether the putative Paleolithic dogs are morphologically unique or whether they represent a subsample of the wolf morpho‐population. We evaluated morphological differences between 96 specimens of the 4 a priori reference groups (8 putative Paleolithic dogs, 41 recent northern dogs, 7 Pleistocene wolves, and 40 recent northern wolves) using discriminant analysis based on 5 ln‐transformed raw and allometrically size‐adjusted cranial measurements. Putative Paleolithic dogs are classified with high accuracies (87.5 and 100.0%, cross‐validated) and randomization experiment suggests that these classification rates cannot be exclusively explained by the small and uneven sample sizes of reference groups. It indicates that putative Upper Paleolithic dogs may represent a discrete canid group with morphological signs of domestication (a relatively shorter skull and wider palate and braincase) that distinguish them from sympatric Pleistocene wolves. The present results add evidence to the view that these specimens could represent incipient Paleolithic dogs that were involved in daily activities of European Upper Paleolithic forager groups.
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RBINS Staff Publications 2021
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Morphological variability study and review of the distribution area of Metaegosoma annamensis (Pic, 1930) (Coleoptera, Cerambycidae, Prioninae)
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RBINS Staff Publications 2021