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Contribution to the knowledge of some Lanternflies of the Philippines (Hemiptera: Fulgoromorpha: Fulgoridae)
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RBINS Staff Publications
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Contribution to the study of gastrointestinal helminths of rodents in two localities of the central Congolese basin, Dikwa (Tshopo) and Inkanamongo (Tshuapa)
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RBINS Staff Publications 2023
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Control of phytoplankton production by physical forcing in a strongly tidal, well-mixed estuary
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A zero-dimensional model for phytoplanktonicproduction in turbid, macro-tidal, well-mixed estuaries is proposed. It is based on the description of light-dependentalgal growth, phytoplankton respiration and mortality. The model is forced by simple time-functions for solar irradiance, water depth and light penetration. The extinction coefficientis directly related to the dynamics of suspended particulate matter. Model results show that the description of phyto-plankton growth must operate at a time resolution sufficientlyhigh to describe the interference between solarly and tidallydriven physical forcing functions. They also demonstrate that in shallow to moderately deep systems, simulations using averaged, instead of time-varying, forcing functions lead to significant errors in the estimation of phytoplankton productivity. The highest errors are observed when the temporalpattern of light penetration, linked to the tidal cycle of solidssettling and resuspension, is neglected. The model has alsobeen applied using realistic forcing functions typical of two locations in the Scheldt estuary. Model results are consistentwith the typical phytoplankton decay observed along the lon-gitudinal, seaward axis in the tidal river and oligohaline part of this estuary.
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No RBINS Staff publications
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Contrubution to the knowledge of Afrotropical Rutelinae IV (Coleoptera: Scarabaeoidea: Melolonthidae)
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RBINS Staff Publications 2016
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Convergence and constraint in the cranial evolution of mosasaurid reptiles and early cetaceans
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RBINS Staff Publications 2022
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Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
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RBINS Staff Publications 2023
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Cranial Endocast of the Lambeosaurine Hadrosaurid Amurosaurus riabinini from the Amur Region, Russia
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Information on the structure of the brain of the lambeosaurine hadrosaurid dinosaur Amurosaurus riabinini, from the Late Maastrichtian of Blagoveschensk, Far Eastern Russia, is presented based on endocranial casts. The endocasts are compared with physical and digital endocasts of other dinosaurs. The olfactory tract was large. The cerebral hemispheres are enlarged and round, illustrating the important development of this part of the brain in hadrosaurids. The pituitary body is enlarged as well, perhaps prefiguring the large size attained by hadrosaurids. The EQ of Amurosaurus was similar to that of the lambeosaurine dinosaur Hypacrosaurus altispinus and was relatively larger than in most extant non-avian reptiles, including sauropod and ceratopsian dinosaurs. However, it was apparently relatively smaller than those of most theropod dinosaurs. The relatively large size of the cerebrum is consistent with the range and complexity of social behaviors inferred for lambeosaurine dinosaurs.
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RBINS Staff Publications
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Cranial osteology of Hypoptophis (Aparallactinae: Atractaspididae: Caenophidia), with a discussion on the evolution of its fossorial adaptations
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Fossoriality evolved early in snakes, and has left its signature on the cranial morphology of many extinct Mesozoic and early Caenozoic forms. Knowledge of the cranial osteology of extant snakes is indispensable for associating the crania of extinct lineages with a particular mode of life; this applies to fossorial taxa as well. In the present work, we provide a detailed description of the cranium of Hypoptophis wilsonii, a member of the subfamily Aparallactinae, using micro-computed tomography (CT). This is also the first thorough micro-CT-based description of any snake assigned to this African subfamily of predominantly mildly venomous, fossorial, and elusive snakes. The cranium of Hypoptophis is adapted for a fossorial lifestyle, with increased consolidation of skull bones. Aparallactines show a tendency toward reduction of maxillary length by bringing the rear fangs forward. This development attains its pinnacle in the sister subfamily Atractaspidinae, in which the rear fang has become the “front fang” by a loss of the part of the maxilla lying ahead of the fang. These dentitional changes likely reflect adaptation to subdue prey in snug burrows. An endocast of the inner ear of Hypoptophis shows that this genus has the inner ear typical of fossorial snakes, with a large, globular sacculus. A phylogenetic analysis based on morphology recovers Hypoptophis as a sister taxon to Aparallactus. We also discuss the implications of our observations on the burrowing origin hypothesis of snakes.
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RBINS Staff Publications 2022
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Crassicauda boopis in a fin whale (Balaenoptera physalus) ship-struck in the eastern North Atlantic Ocean
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RBINS Staff Publications 2017
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Cross-calibration of different radar systems for monitoring nocturnal bird migration across Europe and the Near East
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RBINS Staff Publications 2018