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Reliable DNA barcoding performance proved for species and island populations of Comoran squamate reptiles
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RBINS Staff Publications
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Remains of Atsinganosaurus from the Late Cretaceous Site of Velaux-La Bastide Neuve (Southern France)
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RBINS Staff Publications 2017
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Remarks on Hymenoptera on urban green roofs in Belgium
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In this paper we discuss all Hymenoptera (10.085 specimens) caught on several urban green roofs in Belgium during 2020 and 2021. We thereby try to connect species’ ecology and the specific habitat of extensive green roofs. Based on these findings we suggest what life communities can indeed be expected there. Six species on 120 taxa discovered are first reported for Belgium: Gonatopus lunatus (var. bifasciatus) Klug, 1810 (Aculeata: Dryinidae); Synacra paupera Macek, 1995 (Parasitica: Diapriidae); Alysia lucicola Haliday, 1838, Idiasta dichrocera Konigsmann, 1960 and Leiophron deficiens (Ruthe, 1856) (Parasitica: Braconidae) and Gelis declivis Forster, 1850 (Parasitica: Ichneumonidae).
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RBINS Staff Publications 2023 OA
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Remotely sensed seasonal dynamics of phytoplankton in the Ligurian Sea in 1997-1999.
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Remotely sensed data and a one-dimensional hydrophysical model were used to study the seasonal dynamics of surface plant pigments concentration in the Ligurian-Provençal basin. The variations of phytoplankton biomass were estimated from the observations of the Coastal Zone Color Scanner (1978–1986) and Sea-viewing Wide Field-of-view Sensor (SeaWiFS) (September 1997 to October 1999) radiometers. The factors of physical environment analyzed included remotely sensed sea surface temperature (from advanced very high resolution radiometers), wind, air temperature, and atmospheric precipitation. The Geohydrodynamics and Environment Research (GHER) model was used to explain the observed correlations between the physical forcing and the response of phytoplankton biomass. The general pattern of phytoplankton seasonal dynamics was typical to subtropical areas: maximum biomass during cold season from October to April and low biomass during summer months. The intensity of winter/spring bloom significantly varied during different years. The correlation was revealed between the summer/autumn air temperature contrast (expressed as the difference between the air temperatures in August and in November) and the maximum monthly averaged surface chlorophyll concentration during the subsequent winter/spring bloom. The features of seasonal dynamics of phytoplankton are regulated by the physical impacts influencing water stratification. The difference between two seasonal cycles (from September 1997 to October 1999) illustrates the response of phytoplankton growth to local meteorological conditions. In March–April 1999 the vernal bloom was much more pronounced; it resulted from deeper winter cooling and more intensive winter convection. Heating of surface water layer, wind mixing, and freshwater load with rains and river discharge either stimulate or depress the development of phytoplankton, depending on what limiting environmental factor (light or nutrient limitation) prevailed.
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No RBINS Staff publications
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Repeated unidirectional introgression of nuclear and mitochondrial DNA between four congeneric Tanganyikan cichlids.
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With an increasing number of reported cases of hybridization and introgression, interspecific gene flow between animals has recently become a widely accepted and broadly studied phenomenon. In this study, we examine patterns of hybridization and introgression in Ophthalmotilapia spp., a genus of cichlid fish from Lake Tanganyika, using mitochondrial and nuclear DNA from all four species in the genus and including specimens from over 800 km of shoreline. These four species have very different, partially overlapping distribution ranges, thus allowing us to study in detail patterns of gene flow between sympatric and allopatric populations of the different species. We show that a significant proportion of individuals of the lake-wide distributed O. nasuta carry mitochondrial and/or nuclear DNA typical of other Ophthalmotilapia species. Strikingly, all such individuals were found in populations living in sympatry with each of the other Ophthalmotilapia species, strongly suggesting that this pattern originated by repeated and independent episodes of genetic exchange in different parts of the lake, with unidirectional introgression occurring into O. nasuta. Our analysis rejects the hypotheses that unidirectional introgression is caused by natural selection favoring heterospecific DNA, by skewed abundances of Ophthalmotilapia species or by hybridization events occurring during a putative spatial expansion in O. nasuta. Instead, cytonuclear incompatibilities or asymmetric behavioral reproductive isolation seem to have driven repeated, unidirectional introgression of nuclear and mitochondrial DNA into O. nasuta in different parts of the lake.
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RBINS Staff Publications
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Reply to “Comment on “Ecological niche of Neanderthals from Spy Cave revealed by nitrogen isotopes of individual amino acids in collagen.” [J. Hum. Evol. 93 (2016) 82–90]” [J. Hum. Evol. 117 (2018) 53–55]
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RBINS Staff Publications 2018
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Reply to comment by Kienle et al. 2017
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RBINS Staff Publications 2017
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Reply to comments on “A well-preserved pelvis from the Maastrichtian of Romania suggests that the enigmatic Gargantuavis is neither an ornithurine bird nor an insular endemic”
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We appreciate the comments of Buffetaut and Angst on our recent study of a Gargantuavis-like pelvis from the Late Cretaceous of Romania. We consider some of their points to be valid, but maintain our conclusion on the likely absence of a glycogen body in Gargantuavis and the lack of fusion of the pelvic elements in the acetabular region. Both characters conflict with a classification of the taxon into Ornithurae. We also uphold our hypothesis that Gargantuavis is possibly related to the enigmatic theropod Balaur bondoc.
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RBINS Staff Publications 2020
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Reply to Van Peer: Direct radiocarbon dating and ancient genomic analysis reveal the true age of the Neanderthals at Spy Cave
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Van Peer (1) contests the conclusions of our article on Neanderthal disappearance in Northwest Europe (2), but we think his argument may reflect a misunderstanding of the stratigraphy at Spy Cave and/or incomplete reading of our article. We provide here a response to his arguments.The idea that the discovery time of the Neanderthal bones impacts the results is not scientifically valid and indicates an incomplete review of the literature. Among the oldest radiocarbon dates obtained on the Spy Neanderthals are those measured on collagen from material collected on the slope: Spy 737a (OxA-10560) and Spy 94a (GrA-32623) (3, 4). In addition, although found on the slope, the maxillary …
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RBINS Staff Publications 2021
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Repositioning data management near data acquisition
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RBINS Staff Publications 2016
