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  • Manthi, Fredrick Kyalo
    et al.
    Brown, Francis H.
    Plavcan, Michael J.
    Werdelin, Lars
    Swedish Museum of Natural History, Department of Paleobiology.
    Gigantic lion, Panthera leo, from the Pleistocene of Natodomeri, eastern Africa2017In: Journal of Paleontology, ISSN 0022-3360, E-ISSN 1937-2337Article in journal (Refereed)
    Abstract [en]

    The partial skull of a lion from Natodomeri, northwest Kenya is described. The Natodomeri sites are correlated with Member I of the Kibish Formation, dated to between 195 ka and ca. 205 ka. The skull is remarkable for its very great size, equivalent to the largest cave lions (Panthera spelaea  [Goldfuss, 1810]) of Pleistocene Eurasia and much larger than any previously known lion from Africa, living or fossil. We hypothesize that this individual represents a previously unknown population or subspecies of lion present in the late Middle and Late Pleistocene of eastern Africa rather than being an indication of climate-driven size increase in lions of that time. This raises questions regarding the extent of our understanding of the pattern and causes of lion evolution in the Late Pleistocene.

  • Krall, Lindsay
    et al.
    The Swedish Nuclear Fuel and Waste Management Company.
    Trezzi, Giada
    Universitat Autònoma de Barcelona.
    Garcia-Orellana, Jordi
    Universitat Autònoma de Barcelona.
    Valenti, Rodellas
    CEREGE, Aix-Marseille Université.
    Mörth, Magnus
    Department of Geological Sciences Stockholm University.
    Andersson, Per
    Swedish Museum of Natural History, Department of Geology.
    Submarine groundwater discharge at Forsmark, Gulf of Bothnia, providedby Ra isotopes2017In: Marine Chemistry, ISSN 0304-4203, E-ISSN 1872-7581, Vol. 196, 162-172 p.Article in journal (Refereed)
    Abstract [en]

    Submarine groundwater discharge (SGD) to the Gulf of Bothnia, Baltic Sea, has been believed to be insignificant from hydrological models, yet geochemical investigations of SGD in this basin are limited. In this study, 223Ra, 224Ra, 226Ra, and 228Ra have been complemented by stable δ18O and d2H isotopes to characterize and quantify SGD rates from the coast of Forsmark, Sweden to Öregrundsgrepen Strait (Gulf of Bothnia). In shallow bays, SGD has been traced using relations between Ra, d2H and d18O isotopes and salinity. Zonal SGD from deformation zones, expressed as hydraulically conductive fractures, overlain by the Börstilåsen esker, a strip of conductive gravel sediment, have been traced through offshore 224Raxs and 226Ra trends. On the basis of a 224Raxs mass balance, the SGD flow rate ranges from (5.5 ± 3.0) · 103 m3 d-1 to (950 ± 520) · 103 m3 d-1. These rates are up to two orders of magnitude higher than those determined from local hydrological models, which consider only the fresh component of SGD. From the divergence between the hydrological and 224Raxs models, it is inferred that the site is influenced by a component of recirculated seawater.

  • Stigenberg, Julia
    Swedish Museum of Natural History, Department of Zoology.
    Review of the genus Townesilitus (Hymenoptera, Braconidae) in Sweden, with description of a new species and a molecular characterization.2017In: Entomologisk Tidskrift, ISSN 0013-886x, Vol. 138, no 2, 137-150 p.Article in journal (Refereed)
    Abstract [en]

    The tribe Townesilitini (Braconidae, Euphorinae) includes the genera Townesilitus, Streblocera, Marshiella and Prochlithrophorus. In Sweden this tribe is represented by the genera Townesilitus and Streblocera. This paper explores the taxonomy of the genus Townesilitus in Sweden. One new species is described from Sweden, Townesilitus oelandicus sp. nov. and the species T. aemulus (Ruthe, 1856) is recorded for the first time for Sweden. All five Swedish species, T. aemulus (Ruthe, 1856), T. bicolor (Wesmael, 1835), T. deceptor (Wesmael, 1835), T. fulviceps (Ruthe, 1856) and T. oelandicus, are diagnosed both mor- phologically and molecularly. A key for the identification of these species is provided and a phylogenetic tree is presented as well as information on distribution and phenology for all ve species occurring in Sweden. 

  • Roos, Anna
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Fiskgjuse: - Miljögiftsbelastning i ägg insamlade i Sverige2017Report (Other academic)