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  • 1
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    Foraminifera - foraminiferen (2010)
    Nederlands Centrum voor Biodiversiteit Naturalis ; European Invertebrate Survey - Nederland, Leiden
    Details
    Publication Date: 2024-01-12
    Keywords: biodiversiteit ; Nederland ; foraminiferen
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/conferenceObject
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  • 2
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    Larger benthic Foraminifera of the type Maastrichtian (2012)
    In:  Scripta Geologica. Special Issue vol. 08, pp. 33-44
    Details
    Publication Date: 2024-01-12
    Description: Brief descriptions are presented of species of larger benthic foraminifera found in the type area of the Maastrichtian, supported by an identification key.
    Keywords: larger benthic foraminifera ; Maastrichtian ; Maastricht ; the Netherlands
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    On present day islands and past distributions (2011)
    In:  Scripta Geologica vol. 142, pp. 15-16
    Details
    Publication Date: 2024-01-12
    Description: Southeast Asia, and especially the Philippines-Indonesia-Papua New Guinea Archipelago, harbours the world\xe2\x80\x99s highest marine diversity. This region also had a complex geological history. This raises the question whether these two attributes are related and, if so, how. To locally build high species richness in a region, the balance between speciation/immigration and extinction/exturpation should be positive over at least part of its geologic history.
    Keywords: islands ; geology ; marine diversity ; speciation ; immigration ; extinction ; exturpation ; Phillippines ; Indonesia ; Papua New Guinea
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    Quantifying Sub\xe2\x80\x90Seasonal Growth Rate Changes in Fossil Giant Clams Using Wavelet Transformation of Daily Mg/Ca Cycles (2023)
    American Geophysical Union (AGU)
    In:  Geochemistry, Geophysics, Geosystems vol. 24 no. 10
    Details
    Publication Date: 2024-02-08
    Description: Shells of the giant clam Tridacna can provide decade-long records of past environmental conditions via their geochemical composition and structurally through growth banding. Counting the daily bands can give an accurate internal age model with high temporal resolution, but daily banding is not always visually retrievable, especially in fossil specimens. We show that daily geochemical cycles (e.g., Mg/Ca) are resolvable via highly spatially resolved laser-ablation inductively coupled plasma mass spectrometry (LA-ICPMS; 3 \xc3\x97 33 \xce\xbcm laser slit) in our Miocene (\xe2\x88\xbc10 Ma) specimen, even in areas where daily banding is not visually discernible. By applying wavelet transformation on the measured daily geochemical cycles, we quantify varying daily growth rates throughout the shell. These growth rates are thus used to build an internal age model independent of optical daily band countability. Such an age model can be used to convert the measured elemental ratios from a function of distance to a function of time, which helps evaluate paleoenvironmental proxy data, for example, regarding the timing of sub-seasonal events. Furthermore, the quantification of daily growth rates across the shell facilitates the evaluation of (co)dependencies between growth rates and corresponding elemental compositions.
    Keywords: Tridacna
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 5
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    Larger Foraminfera as marine environmental indicators (2002)
    In:  Scripta Geologica vol. 124, pp. 1-260
    Details
    Publication Date: 2024-01-12
    Keywords: Foraminifera ; Spermonde Shelf ; Sulawesi ; Cabilao ; Philippines ; Recent ; Palaeogene ; diversity
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
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    De prachtvlieg Otites formosa nieuw voor Nederland (Diptera: Ulidiidae). (2006)
    In:  Nederlandse Faunistische Mededelingen vol. 24, pp. 121-123
    Details
    Publication Date: 2024-01-12
    Description: The picture-winged fly Otites formosa new for\nthe Netherlands (Diptera: Ulidiidae)\nThe first record of Otites formosa (Panzer, 1798) is\ngiven. A male specimen was collected in the forest\n\xe2\x80\x98Hoge bos\xe2\x80\x99 near the town of Elsloo, province of\nLimburg. The genus Otites is characterized and\nthe differences between both species of this genus\nin the Netherlands are given, as well as an illustration\nof both species.
    Keywords: prachtvliegen ; Ulidiidae ; Nederland ; verspreiding
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 7
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    Larger foraminifera on reefs around Bali (Indonesia) (2003)
    In:  Zoologische Verhandelingen vol. 345, pp. 337-366
    Details
    Publication Date: 2024-01-12
    Description: The larger benthic foraminifera fauna from four regions at or near Bali are described. In 132 samples in total 19 species were found. This is a similar to species richness in areas like the Spermonde and Cebu, but the fauna composition differed markedly. For each species the occurrence at Bali and environmental parameters affecting this distribution are discussed. It is argued that the very low abundance of imperforate species is not due to the absence of their microhabitat, but due to climatic or oceanographic parameters. The most likely is the presence of periodic upwelling, which causes the seawater temperature to drop to low levels seasonally.
    Keywords: Formanifera ; Bali ; Indonesia
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 8
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    Flying high: on the airborne dispersal of aquatic organisms as illustrated by the distribution histories of the gastropod genera Tryonia and Planorbarius (1999)
    In:  Geologie en Mijnbouw vol. 78, pp. 165-174
    Details
    Publication Date: 2024-01-12
    Description: The actual and fossil distribution patterns of the aquatic gastropod genera Tryonia and Planorbarius indicate that avian dispersal was an important dispersal mechanism in the geological past. Combining the distribution histories of these genera with ecological data on modern relatives provides insights into the process of dispersal of aquatic taxa in general. Avian dispersal of aquatic taxa is facilitated by a variety of factors, including mass occurrence in resting/foraging places of migrating birds, ways to attach to the birds and to overcome desiccation during flight, as well as easy reproduction from a single specimen when introduced into a new habitat. The uncertain taxonomical status of aquatic organisms, as well as biased preservation and sampling, provide serious drawbacks for understanding the importance of aerial dispersal.
    Keywords: avian dispersal ; aquatic taxa ; biogeography ; distribution ; Gastropoda ; Mollusca
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 9
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    Drie maal is scheepsrecht, de zweefvlieg Chalcosyrphus eunotus terug op de Nederlandse lijst (Diptera: Syrphidae) (2001)
    In:  Nederlandse Faunistische Mededelingen vol. 15, pp. 111-115
    Details
    Publication Date: 2024-01-12
    Description: Three times does the trick, Chalcosyrphus eunotus back on the species list of the Netherlands (Diptera: Syrphidae) \nChalcosyrphus eunotus (Loew, 1873) has already been reported twice for the Netherlands, in 1958 and 1965. Both times re-examination of the specimens showed that it concerned Criorhina pachymera (Van der Goot 1969, Van der Linden 1988). On April 6, 2000 a male C. eunotus was caught near Elsloo (Limburg, the Netherlands). The distribution, flight period and habitat of C. eunotus are summarised, and many new European records are given. Chalcosyrphus eunotus usually occurs in deciduous forests (Quercus- Fraxinus-Ulmus) and is often found along the edges of small streams running through the forest (Speight 2000; this paper). The larvae were found in logs and below bark of logs laying in flowing water (Speight 2000). Chalcosyrphus eunotus appears to be underrecorded. There are many recent records and once caught in an area, often more records follow. In southern France five specimens were caught in a Malaise-trap (pers. com. J.-P. Sarthou). It can therefore be expected that investigations in suitable habitats will yield much more records.
    Keywords: Nederland ; Verspreiding ; Herkenning ; Biologie
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 10
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    Vijf soorten van het zweefvliegengenus Cheilosia nieuw voor Nederland (Diptera: Syrphidae) (2001)
    In:  Nederlandse Faunistische Mededelingen vol. 15, pp. 123-139
    Details
    Publication Date: 2024-01-12
    Description: Five new species of the hoverfly genus Cheilosia for the Netherlands (Diptera: Syrphidae) \nFive species of the hoverfly genus Cheilosia are reported here for the first time for the fauna of the Netherlands. Keys are provided for the identification of the northwestern European species of the canicularis and proxima complexes. Cheilosia aerea Dufour, 1848 was only found in Zuid-Limburg, the most southeastern part of the Netherlands. Except for one specimen from 1943, all 14 specimens were collected in the 1990s. Cheilosia himantopus (Panzer, 1798) occurs in Zuid-Limburg and around Winterswijk in the east of the Netherlands. The species has the same distribution as C. canicularis (Panzer, 1801), with which it had been confused for a long time. Cheilosia himantopus is reported for the first time for Belgium and the Czech Republic. One specimen of Cheilosia laticornis Rondani, 1857 was found in Limburg in June 1999. Cheilosia ranunculi Doczkal, 2000 has a southern distribution in the Netherlands, with records on the southwestern isles of the Delta area and in the southeastern part of the Netherlands. Cheilosia albitarsis (Meigen, 1822), from which the species was recently separated, occurs all over the Netherlands. Two specimens of C. soror (Zetterstedt, 1843) were collected in Zuid-Limburg in July 1994.
    Keywords: Nederland ; Verspreiding ; Biologie ; Biotopen ; Herkenning ; Determinatiesleutel
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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