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From spawning to first-year recruitment: the fate of juvenile sole growth and survival under future climate conditions in the North Sea
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This study shows the effect of climate change on the growth and survival of early life history stages of common sole (Solea solea) in different nursery areas of the North Sea, by combining a larval transport model with an individual-based growth model (Dynamic Energy Budget) to assess the fate from egg to young of the year at the end of the first growth season. Three scenarios of climate change, inspired by the 2040 Intergovernmental Panel on Climate Change projections, are tested and results are compared to a reference situation representative of current climate conditions. Under climate change scenarios where wind changes, water temperature increases and earlier spawning are considered, the early arrival of fish larvae in their nurseries results in larger young of the year at the end of summer. However, early arrival leads to higher mortality due to initially slow growth in spring. Future climate scenarios result in higher biomass and reduced first-year survival. How this result translates into changes at population level and stock management needs further investigation. Nonetheless, this study illustrates that processes linking life stages are paramount to understand and predict possible consequences of future climate conditions on population dynamics.
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Species distribution, hybridization and connectivity in the genus Chionodraco: Unveiling unknown icefish diversity in antarctica
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Aim: The species of the genus Chionodraco (Notothenioidei) are the most abundant icefish on the continental shelf of the Weddell Sea. While previous studies indicated that only Chionodraco hamatus and Chionodraco myersi inhabit the Weddell Sea, the third Chionodraco species, Chionodraco rastrospinosus, was recently sampled in the area. As C. rastrospinosus is supposed to be found only at the Antarctic Peninsula and Scotia Arc, this study aimed at confirming the species classification of C. rastrospinosus by molecular methods and identifying its putative source population. Given the documented evidence of introgression among the three species, we tested whether the newly found C. rastrospinosus shared any genetic variability with the other Chionodraco species. To explain the pattern of distribution of the Chionodraco species, we aimed at estimating the hydrodynamic connectivity between the Antarctic Peninsula and the Weddell Sea. Location: Antarctic Peninsula, southern Scotia Arc and the south-eastern Weddell Sea. Methods: We genotyped 19 microsatellites and sequenced the mitochondrial D-loop for 560 Chionodraco individuals. We simulated the dispersal of more than 3 million drifters (Lagrangian model). Results: The molecular analyses support the presence of C. rastrospinosus in the Weddell Sea and its homogeneity with C. rastrospinosus from the Antarctic Peninsula. Bayesian clustering identifies three putative hybrids among C. rastrospinosus and the other congenerics. Lagrangian simulations do not support connectivity driven by the oceanographic features of the Antarctic Peninsula and Weddell Sea via passive larval dispersal only. Main conclusions: This study documents, for the first time, the presence of C. rastrospinosus in the Weddell Sea unveiling more biodiversity than previously known in this region. The sympatry of the three Chionodraco species explains the occurrence of occasional, ongoing events of hybridization in the genus. Alternative possible
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Laohiracia acuta, a new genus and species of Parahiraciini planthopper with elongate cephalic process from Laos (Hemiptera: Fulgoromorpha: Issidae)
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RBINS Staff Publications 2021
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First record, DNA identification and morphometric characterization of Pacific oyster, Crassostrea gigas (Thunberg, 1793) in the southern Black Sea
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RBINS Staff Publications 2021
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Understanding the tangled taxonomy of the genus Pseudohercostomus Stackelberg, 1931 (Insecta: Diptera: Dolichopodidae) with description of new species from Singapore and DR Congo
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RBINS Staff Publications 2021
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Mangroves are an overlooked hotspot of insect diversity despite low plant diversity
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RBINS Staff Publications 2021
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Dizoniopsis coppolae (Aradas, 1870) (Gastropoda: Cerithiopsidae) in the Bay of Biscay
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RBINS Staff Publications 2021
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Ath "Les Haleurs", deux occupations Rubané et Blicquy/Villeneuve-Saint-Germain (Néolithique ancien). Mécanismes de transition culturelle par l'étude intégrée des productions.
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RBINS Staff Publications 2024
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Review of the historical collection of Charipinae (Hymenoptera: Figitidae) preserved in the RBINS
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Specimens from the subfamily Charipinae (Figitidae) deposited in the Royal Belgian Institute of Natural Sciences (RBINS) were examined, in total 44 individuals were identified, belonging to eleven species. Five species are reported for the first time in Belgium: Alloxysta citripes (Thomson, 1862), A. fuscipes (Thomson, 1862), A. halterata (Thomson, 1862), A. ramulifera (Thomson, 1862) and Phaenoglyphis fuscicornis (Thomson, 1877); making 14 known species of Charipinae in Belgium. Additionally, for the first time, host information is reported for P. fuscicornis and A. consobrina (Zetterstedt, 1838).
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RBINS Staff Publications 2024
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Overview of myrmecological studies and a checklist of the ants (Hymenoptera, Formicidae) of the Democratic Republic of Congo
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The production of species checklists is fundamental to setting baseline knowledge of biodiversity across the world and they are invaluable for global conservation efforts. The main objective of this study is to provide an up-to-date extensive checklist of the ants of the Democratic Republic of Congo (DRC), the largest country in sub-Saharan Africa, based on available literature to serve as a foundation for future research and ant faunistic developments. We gathered the literature available to us, most of it compiled from the Global Ant Biodiversity Informatics (GABI) Project and treated the data to province level when possible. We also offer insight into who, when and where contributions have emerged to the current knowledge of the ants of the DRC and each of its 26 provinces. The current list is restricted to valid species and subspecies, discarding morphospecies and some misidentified taxa. The list comprises eight subfamilies, 64 genera and 736 species, the highest species diversity for a country located within the Afrotropical realm.
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RBINS Staff Publications 2024