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The Population History of Domestic Sheep Revealed by Paleogenomes
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Sheep was one of the first domesticated animals in Neolithic West Eurasia. The zooarchaeological record suggests that domestication first took place in Southwest Asia, although much remains unresolved about the precise location(s) and timing(s) of earliest domestication, or the post-domestication history of sheep. Here, we present 24 new partial sheep paleogenomes, including a 13,000-year-old Epipaleolithic Central Anatolian wild sheep, as well as 14 domestic sheep from Neolithic Anatolia, two from Neolithic Iran, two from Neolithic Iberia, three from Neolithic France, and one each from Late Neolithic/Bronze Age Baltic and South Russia, in addition to five present-day Central Anatolian Mouflons and two present-day Cyprian Mouflons. We find that Neolithic European, as well as domestic sheep breeds, are genetically closer to the Anatolian Epipaleolithic sheep and the present-day Anatolian and Cyprian Mouflon than to the Iranian Mouflon. This supports a Central Anatolian source for domestication, presenting strong evidence for a domestication event in SW Asia outside the Fertile Crescent, although we cannot rule out multiple domestication events also within the Neolithic Fertile Crescent. We further find evidence for multiple admixture and replacement events, including one that parallels the Pontic Steppe-related ancestry expansion in Europe, as well as a post-Bronze Age event that appears to have further spread Asia-related alleles across global sheep breeds. Our findings mark the dynamism of past domestic sheep populations in their potential for dispersal and admixture, sometimes being paralleled by their shepherds and in other cases not.
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RBINS Staff Publications 2023
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Environmental Impacts of Offshore Wind Farms in the Belgian Part of the North Sea: Getting ready for offshore wind farm expansion in the North Sea.
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RBINS Staff Publications 2022
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Turbine size impacts the number of seabird collisions per installed megawatt and offers possibilities for mitigation.
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As the offshore wind energy technology is rapidly progressing and because wind turbines at sea have a relatively short life span, repowering scenarios are already being discussed for the oldest wind farms. Ongoing developments result in larger wind turbines and an increased open airspace between turbines. Despite taller towers having larger rotor swept zones and therefore a higher collision risk area compared to smaller-sized turbines, there is increasing evidence that fewer but larger, more power-efficient turbines may have a lower collision rate per installed megawatt. As such, turbine size can offer an opportunity to mitigate seabird fatalities by increasing the clearance below the lower rotor tip. We assessed the seabird collision risk for a hypothetical repowering scenario of the first offshore wind farm zone in Belgian waters with larger turbines and the effect of an additional increase in hub height on that theoretical collision risk. For all species included in this exercise, the estimated collision risk decreased in a repowering scenario with 15 MW turbines (40.4% reduction on average) because of higher clearance between the lower tip of the turbine rotor and the sea level, and the need for a lower number of turbines per km². Increasing the hub height of those 15 MW turbines with 10 m, further decreases the expected number of seabird collisions with another 37% on average. However, terrestrial birds and bats also migrate at sea and the effect of larger turbines on these taxa is less clear. Possibly even more terrestrial birds and bats are at risk of collision compared to the current turbines. So, while larger turbines and increasing the hub height can be beneficial for seabirds, this likely needs to be applied in combination with curtailment strategies, which stop the turbines during heavy migration events, to reduce the impact on other species groups.
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RBINS Staff Publications 2022
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Biofluorescence of the Mottled shovel-nosed frog, Hemisus marmoratus: first report for Hemisotidae.
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RBINS Staff Publications 2023
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Revision of the Eurybrachidae XVIII. The Australian genus Olonia Stål, 1862: Four new species, new records and biological data (Hemiptera: Fulgoromorpha)
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RBINS Staff Publications 2024
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First outdoor record of Crematogaster scutellaris (Olivier, 1792) in Belgium (Hymenoptera: Formicidae)
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We report the first observation of an outdoor nest of the ant species Crematogaster scutellaris (Olivier, 1792) in Belgium. In spring 2022, a nest of this species was discovered at Rood Klooster in Auderghem, Brussels Capital Region. Large and very active trails of workers were detected in a hedge and along the walls of a small building. The nest is probably already present several years and situated in the wooden construction of the building. Interactions with other ant species indicate that this new arrival will not immediately become an invasive problem for the local native ant fauna. We expect that more records of this species might be discovered in the near future in the neighborhood but also elsewhere in Belgium.
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RBINS Staff Publications 2023
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Soil-litter arthropod communities under pasture land use in southern Rwanda
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Land use change caused by human activities is the main driver of biodiversity loss and changes in ecosystem functioning. However, less is known about how the conversion of a natural to pasture land favour the biological diversity of soil-litter arthropods to advance effective conservation plans and management systems. To fill the gap, this study focussed on soil-litter arthropod communities under a pasture land use in southern Rwanda. Data have been collected using pitfall traps and hand collection between April and June 2021. Sampled specimens of soil-litter arthropods have been identified to order and family levels by using dichotomous keys. Further, the species name was given when the identification key was available, while the morphological description was provided in absence of the identification keys. Results indicated a total of 3013 individuals of soil-litter arthropods grouped into 3 classes, 13 orders, 46 families and 87 morpho-species. Coleoptera showed a high number of families, while higher abundance and the number of morpho-species were found for ants (Hymenoptera: Formicidae). Higher abundance of sampled soil-litter arthropods is a sign that the studied area offers suitable habitat for soil-litter arthropods. However, less abundance found for some groups of soil-litter arthropods might be influenced by the used sampling techniques which were not appropriate for them. We recommend surveys using multiple sampling techniques to maximize chances of capturing a wide range of soil-litter arthropods.
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RBINS Staff Publications 2022
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Illustrated and commented checklist of the longhorn beetles of Kuzikus Wildlife Reserve in the Kalahari, Namibia (Coleoptera: Cerambycidae)
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RBINS Staff Publications 2023
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First record of the terrestrial nemertean Geonemertes pelaensis Semper, 1863 (Hoplonemertea: Prosorhochmidae) for Cuba
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RBINS Staff Publications 2020
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A Late Period fish deposit at Oxyrhynchus (el-Bahnasa, Egypt)
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We describe the abundant faunal remains that were found in an extensive ritual deposit discovered in 2012 at Oxyrhynchus. This site in Middle Egypt has been famous since the first millennium BC for the mormyrid fish that were worshipped there and after which the town was named. The role played by these fish has already been amply documented through textual evidence, bronze statuettes and paintings, but until now, no remains and no mummies of these fish had been found. We first describe the ritual deposit as a whole, with emphasis on its extent, its stratigraphy and its relationship to the surrounding structures, which, together with a very specific artefact, allow the layers to be dated to the Late Period. The fish remains, as well as the sparse mammal bones, are quantified using both number of identified specimens (NISP) and minimum number of individuals (MNI). Body length reconstructions of the mormyrid fish are carried out using newly derived regression equations. Because of the large quantity of material, we performed the taxonomic identifications and size reconstructions on subsamples from which estimates were then made for the total number of fish that may have been present in the entire deposit. Attention was given to the way in which the fish bundles were prepared, a process that involved both the use of textiles and halfa grass, and to how the deposit was organised. We discuss the species spectrum in relation to both the Egyptian fish cult and evidence from written sources. Finally, we attempt to reconstruct the different events that may have taken place between the capture of the fish and their final deposition at the site, using a combination of both zoological/ecological and papyrological evidence.
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RBINS Staff Publications 2019