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  • taxonomy  (3)
  • The Netherlands  (2)
  • 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology  (1)
  • 2005-2009  (6)
  • 1985-1989
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  • 1
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    Multiple gene genealogies and phenotypic characters differentiate several novel species of Mycosphaerella and related anamorphs\non banana (2008)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 20 no. 1, pp. 19-37
    Details
    Publication Date: 2024-01-12
    Description: Three species of Mycosphaerella, namely M. eumusae, M. fijiensis, and M. musicola are involved in the Sigatoka disease complex of bananas. Besides these three primary pathogens, several additional species of Mycosphaerella or their anamorphs have been described from Musa. However, very little is known about these taxa, and for the majority of these species no culture or DNA is available for study. In the present study, we collected a global set of Mycosphaerella strains from banana, and compared them by means of morphology and a multi-gene nucleotide sequence data set. The phylogeny inferred from the ITS region and the combined data set containing partial gene sequences of the actin gene, the small subunit mitochondrial ribosomal DNA and the histone H3 gene revealed a rich diversity of Mycosphaerella species on Musa. Integration of morphological and molecular data sets confirmed more than 20 species of Mycosphaerella (incl. anamorphs) to occur on banana. This study reconfirmed the previously described presence of Cercospora apii, M. citri and M. thailandica, and also identified Mycosphaerella communis, M. lateralis and Passalora loranthi on this host. Moreover, eight new species identified from Musa are described, namely Dissoconium musae, Mycosphaerella mozambica, Pseudocercospora assamensis, P. indonesiana, P. longispora, Stenella musae, S. musicola, and S. queenslandica.
    Keywords: Mycosphaerella ; phylogeny ; Sigatoka disease complex ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 2
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    Taxonomy, ecology, and conservation status of Philippine Rafflesia\n(Rafflesiaceae) (2009)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 54 no. 1/3, pp. 77-93
    Details
    Publication Date: 2024-01-12
    Description: The number of Rafflesia species (Rafflesiaceae) reported for the Philippines has grown explosively from two before 2002 to ten or eleven presently. We present an overview of the current knowledge of Philippine Rafflesia by providing a comprehensive account of all the recognized species with their taxonomy, distribution and ecology, plus a key and photographs to aid in identification. Their conservation status and that of the rain forest habitats they require is discussed.
    Keywords: Conservation ; ecology ; Philippines ; Rafflesia ; Rafflesiaceae ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 3
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    Non-indigenous marine and estuarine species in The Netherlands (2005)
    In:  Zoologische Mededelingen vol. 79-1, pp. 1-116
    Details
    Publication Date: 2024-01-12
    Description: An overview is presented of non-indigenous marine and estuarine plant and animal species recorded from The Netherlands. In this list both exotic species from outside NW Europe and non-indigenous species from elsewhere in NW Europe are enumerated. Species that have been suggested to be non-indigenous in The Netherlands but for which insufficient evidence could be found are discussed shortly as well. The list is based mainly on literature data supplemented by own observations of the author. At least 99 plant and animal species have been introduced from elsewhere in the world. Another 13 species have been introduced from other parts of NW Europe. The third category of dubious non-indigenous species enumerates 37 species. The list is preceded by an introduction describing the history of Dutch research on introduced species, the origin of the marine and estuarine flora and fauna of The Netherlands, natural and human-induced dispersal processes, and a summary of the geographic patterns of introduced species.
    Keywords: non-indigenous species ; introduced species ; exotic species ; alien species ; invasive species ; The Netherlands ; North Sea ; Wadden Sea ; Oosterschelde estuary ; estuaries
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    Oxidation state of iron in hydrous phono-tephritic melts (2008)
    MINERALOGICAL SOC AMER
    Details
    Publication Date: 2017-04-04
    Description: The oxidation state of iron in hydrous ultrapotassic (phono-tephritic) melts coexisting with mixed H2O-CO2 fluids was experimentally studied at 1200 and 1250{degree sign}C and pressures from 50 to 500 MPa. The oxygen fugacity (fO2) varied from NNO-2.9 to NNO+2.6 in logfO2, relative to the Ni-NiO oxygen buffer (NNO), as imposed by external redox conditions in experimental vessels and internal variations in water activity from 0.05 to 1 inside the capsules. The iron redox state of the quenched melts was determined by colorimetric wet-chemical analysis. This analytical method was optimized to measure the Fe2+/ΣFe ratio of mg-sized samples within ±0.03 (2σ). The accuracy and precision was tested with international reference materials and with standards analyzed by other methods. The Fe2+/ΣFe ratio of the experimental glasses covered a range of 0.41 to 0.85. A small negative effect of dissolved water on Fe2+/ΣFe at given fO2 was found, consistent with the thermodynamic model of Moretti (2005). No effect of pressure and temperature on the redox state of iron was resolvable in the investigated P-T range. Compared to hydrous ferrobasaltic melts that were studied previously under similar conditions, systematically lower Fe2+/ΣFe ratios were found for the phono-tephritic melts, in particular at low oxygen fugacities. This effect is attributed to the much higher K2O contents of the phono-tephrite (7.5 compared to 0.3 wt%), but the difference in ΣFeO (7.8 wt% in the phono-tephrite and 12.9 wt% in the ferrobasalt) may have an influence as well. Comparison of the experimentally obtained relationship between logfO2 and Fe3+/Fe2+ for the studied hydrous ultrapotassic melts with commonly used empirical and thermodynamic models suggest that these models can be successfully applied to phono-tephritc melts, although such compositions were not implemented in the model calibrations. Furthermore, the new data can be used to improve the models with respect to the effects of compositional variables, such as H2O or K2O, on the redox state of iron in silicate melts.
    Description: Published
    Description: 1493-1504
    Description: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Description: JCR Journal
    Description: open
    Keywords: iron oxidation state, ferrous iron determination, oxygen fugacity, phono-tephrite, ultrapotassic hydrous silicate melt, Alban Hills, water activity ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    Ecological niche models for four native cockroach species (Blattaria: Blattellidae: Ectobiinae) in the Netherlands (2009)
    In:  Contributions to Zoology vol. 78 no. 4, pp. 149-156
    Details
    Publication Date: 2024-01-12
    Description: This paper aims at modelling the spatial distribution of the cockroach species Capraiellus panzeri, Ectobius lapponicus, Ectobius pallidus and Ectobius sylvestris within the Netherlands and comparing the habitat preferences of these species. Maxent was used to calculate habitat suitability and to identify environmental variables underlying the differences in observed distribution patterns. A sub-sampling procedure was employed to test model stability. Models were evaluated by calculating the Area Under the Curve (AUC). The analyses show that except for the costal dune area, the western part of the Netherlands is unsuitable for the species. Suitability predictions for C. panzeri, E. lapponicus and E. sylvestris are very similar, with suitable areas concentrated in the eastern and the north-eastern parts of the country and along the western coast. The prediction model for E. pallidus is somewhat more restricted, especially in the northern part of the country. Soil type, land cover and altitudinal range are most important in predicting the distribution of all species. A correspondence analysis was performed to identify the association between the species distribution and the most influential environmental variables. Correspondence analysis indicated that the species distributions are comparably associated with soil type and land cover while species appear to have different preferences with respect to altitudinal range.
    Keywords: Capraiellus panzeri ; cockroaches ; ecological niche modelling ; Ectobius lapponicus ; Ectobius pallidus ; Ectobius sylvestris ; Maxent ; model stability ; The Netherlands
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 6
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    Pectinoidea (Mollusca: Bivalvia) from Iceland (2009)
    In:  Marine Biology Research vol. 5, pp. 207-243
    Details
    Publication Date: 2024-01-12
    Description: The Icelandic pectinoid fauna is reviewed, based on material from the benthic survey programme BIOICE and 17 species are recorded. Similipecten oskarssoni is proposed as a replacement name for Pecten groenlandicus var. minor Locard, 1898 (Propeamussiidae), which is considered a valid species. Lectotypes are designated for Pecten groenlandicus var. minor and Pecten frigidus Jensen, 1904 (Pectinidae). Cyclopecten ambiannulatus Schein, 1989, Parvamussium propinquum (Smith, 1885), Catillopecten eucymatus (Dall, 1898), and Aequipecten opercularis (Linnaeus, 1758) were previously not known from the Icelandic fauna. All species are figured and described and distinguishing characters are discussed. The distribution in Scandinavian and North Atlantic waters is revised based on the collections in SMNH. The low frequency of juvenile specimens of A. opercularis, Mimachlamys varia and Pecten maximus may indicate that Scandinavian populations are the result of very occasional recruitment.
    Keywords: Pectinoidea ; taxonomy ; new species ; North Atlantic ; Iceland ; BIOICE
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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