ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Sammlung
Schlagwörter
Verlag/Herausgeber
Sprache
Erscheinungszeitraum
  • 1
    facet.materialart.
    Unbekannt
    Ficus pongumphaii (Moraceae), a new species from Thailand, compared with the ambiguous species F. talbotii (2019)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 64, pp. 108-114
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: A deciduous shrub previously included in Ficus talbotii for many years, is now regarded as a new species, Ficus pongumphaii. It is morphologically distinct from F. talbotii with as typical characters the densely brown pubescent to tomentose or villous on leafy twig; the elliptic, suborbicular to obovate leaf blades that are brown tomentellous on the upper surface and brown floccose tomentose to villous underneath; the pedunculate figs are obovate, brown floccose or villous outside and have internal hairs. The leaf anatomy shows a multiple epidermis on both surfaces; enlarged lithocysts on both sides of the lamina, which are more abundant adaxially and with very few abaxially. The species, endemic to Thailand, is named after the great Thai dendrologist, Associate Professor Somnuek Pongumphai.
    Schlagwort(e): Ficus ; leaf anatomy ; Moraceae ; new species
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 2
    facet.materialart.
    Unbekannt
    A new species and a synopsis of the Hedyotis-Oldenlandia group (Rubiaceae: Spermacoceae) in Andaman & Nicobar Islands, India (2019)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 64 no. 3, pp. 225-230
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: An identification key to all the reported species of Hedyotis-Oldenlandia group (Hedyotis, Oldenlandia, Exallage, Leptopetalum, Scleromitrion and Debia) in Andaman & Nicobar Islands is presented with one new species, Oldenlandia smita-crishnae, described from Saddle Peak forests of North Andaman, India. It shares some characters with Oldenlandia herbacea, O. corymbosa and O. pseudocorymbosa. However, it is remarkable for its abaxially puberulous leaves, divaricate stipules, ellipsoid to obovoid hypanthium, pink-striped corolla lobes and 20–30-seeded, inserted capsule. Furthermore, a new combination in Exallage is proposed and lectotypes for Spermacoce cristata, S. costata, Hedyotis vestita and Oldenlandia stocksii are designated.
    Schlagwort(e): Andaman & Nicobar Islands ; Hedyotis-Oldenlandia ; India ; new species ; typification
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 3
    facet.materialart.
    Unbekannt
    Hibiscus fabiana sp. nov. (Malvaceae) from the Guinea Highlands (West Africa) (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 69-74
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Hibiscus fabiana Cheek (sect. Furcaria, Malvaceae) is described from the Guinea Highlands of West Africa, and its taxonomic affinities and ecology are considered. Hibiscus fabiana has previously been confused with H. rostellatus but has red fleshy calyx ribs (vs not red and non-fleshy), the calyx surface is glabrous apart from 1-armed bristles (vs densely covered in minute white stellate hairs and bristles 2–5-armed), the leaves 3(–5)-lobed, bases truncate to rounded (vs 5-lobed, cordate). The conservation status of the new species is assessed using the IUCN 2012 standard as Vulnerable. In the context of the recently discovered extinction of the Guinean endemic Inversodicraea pygmaea G.Taylor (Podostemaceae), we discuss the 30 new species to science discovered in Guinea since 2005, all but one of which are also range-restricted and threatened, usually by development or habitat loss. We consider it urgent to avoid their extinction, ideally with in situ conservation using an Important PlantAreas approach.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bowal ; conservation ; Furcaria ; Guinea Highlands ; Hibiscus ; Important Plant Areas ; Simandou
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 4
    facet.materialart.
    Unbekannt
    The pharynx of the iconic stem-group chondrichthyan Acanthodes Agassiz, 1833 revisited with micro-computed tomography (2024)
    In:  Zoological Journal of the Linnean Society vol. 2024 no. XX
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Acanthodes has long been the primary source of information on the pharyngeal skeleton of ‘acanthodians’. Because of this its anatomy has played a disproportionate role in attempts to understand the evolution of the jawed vertebrate pharynx and the clade as a whole. However, the anatomy of the pharynx of Acanthodes, now understood to be a stem-group chondrichthyan, remains poorly characterized and subject to several com- peting interpretations. We used computed tomography to image the articulated pharyngeal skeletons of three specimens of Acanthodes confusus from Lebach, Germany. Acanthodes has a mélange of osteichthyan-like and chondrichthyan-like morphologies in its pharyngeal skeleton. Like many other chondrichthyans, Acanthodes lacked hypohyals, and had four pairs of posteriorly oriented pharyngobranchials. Like osteichthyans, Acanthodes possessed an interhyal, but lacked the separate infra- and supra-pharyngobranchial elements present in osteichthyans and the crown- chondrichthyan Ozarcus. Using these new data we built and animated a digital 3D model of the pharyngeal endoskeleton in Acanthodes, showing that the jaws could have swung outwards during the opening cycle, increasing the anteriorly facing area of the gape for suspension feeding. These new data provide a more definitive picture of the anatomy of a taxon that has long been of great significance in early vertebrate palaeontology.
    Schlagwort(e): acanthodian ; branchial skeleton ; chondrichthyan ; computed tomography ; Permian ; pharynx
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 5
    facet.materialart.
    Unbekannt
    Recircumscription and revision of the genus Vanoverberghia (Zingiberaceae) (2019)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 64 no. 2, pp. 140-157
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: The genus Vanoverberghia currently includes three species namely V. sepulchrei and V. rubrobracteata from the Philippines and V. sasakiana from Taiwan. New material targeting the Alpinia eubractea clade of the tribe Alpinieae was used to test the monophyly of Vanoverberghia.Acombined analysis of the ITS and trnK/matK regions reveals that these three species form a strongly supported monophyletic clade with Alpinia diversifolia and Alpinia vanoverberghii. The morphological descriptions of all species were updated after examining recent collections and comparing with types and protologues. The original description of A. diversifolia did not include information on the flowers which are described here. The morphology of A. diversifolia and A. vanoverberghii is for most parts in accordance with the previous perception of the genus but a few characters are added and a recircumscription of Vanoverberghia is subsequently provided here. Vanoverberghia diversifolia is reinstated and A. vanoverberghii is combined in Vanoverberghia. Furthermore, collections from northern Luzon documents the presence of V. sasakiana and all species of Vanoverberghia thus occur in the Philippines. A key to the five species is provided including a comprehensive taxonomic revision and designation of three lectotypes.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Alpinia ; ITS ; Lanyu ; Luzon ; new species record ; trnK/matK
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 6
    facet.materialart.
    Unbekannt
    Computed tomography analysis of multicorer SO268/2_107-1, core 15 (2024)
    PANGAEA
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters 〉~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
    Schlagwort(e): Binary Object; Bioturbation; Bioturbation, volume; Center for Marine Environmental Sciences; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Computer tomography (CT) Toshiba Aquilion 64; DEPTH, sediment/rock; File content; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Manganese nodules, relative volume; Manganese nodules, volume; MARUM; MUC; MUC-23; MultiCorer; Number of slice; Number of voxels, matrix sediment; Sediment, bioturbated lower layer, relative volume; Sediment, bioturbated lower layer, volume; Sediment, homogenized upper layer, relative volume; Sediment, homogenized upper layer, volume; SO268/2; SO268/2_107-1; Sonne_2; X-ray attenuation, matrix sediment, mean; X-ray attenuation, matrix sediment, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 11502 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 7
    facet.materialart.
    Unbekannt
    Computed tomography analysis of multicorer SO268/2_122-1, core 14 (2024)
    PANGAEA
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters 〉~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
    Schlagwort(e): Binary Object; Bioturbation; Bioturbation, volume; Center for Marine Environmental Sciences; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Computer tomography (CT) Toshiba Aquilion 64; DEPTH, sediment/rock; File content; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Manganese nodules, relative volume; Manganese nodules, volume; MARUM; MUC-24; Multicorer with television; Number of slice; Number of voxels, matrix sediment; Sediment, bioturbated lower layer, relative volume; Sediment, bioturbated lower layer, volume; Sediment, homogenized upper layer, relative volume; Sediment, homogenized upper layer, volume; SO268/2; SO268/2_122-1; Sonne_2; TVMUC; X-ray attenuation, matrix sediment, mean; X-ray attenuation, matrix sediment, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 9480 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 8
    facet.materialart.
    Unbekannt
    Computed tomography analysis of multicorer SO268/2_107-1, core 11 (2024)
    PANGAEA
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters 〉~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
    Schlagwort(e): Binary Object; Bioturbation; Bioturbation, volume; Center for Marine Environmental Sciences; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Computer tomography (CT) Toshiba Aquilion 64; DEPTH, sediment/rock; File content; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Manganese nodules, relative volume; Manganese nodules, volume; MARUM; MUC; MUC-23; MultiCorer; Number of slice; Number of voxels, matrix sediment; Sediment, bioturbated lower layer, relative volume; Sediment, bioturbated lower layer, volume; Sediment, homogenized upper layer, relative volume; Sediment, homogenized upper layer, volume; SO268/2; SO268/2_107-1; Sonne_2; X-ray attenuation, matrix sediment, mean; X-ray attenuation, matrix sediment, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 10420 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 9
    facet.materialart.
    Unbekannt
    Computed tomography analysis of multicorer SO268/2_135-1, core 1 (2024)
    PANGAEA
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters 〉~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
    Schlagwort(e): Binary Object; Bioturbation; Bioturbation, volume; Center for Marine Environmental Sciences; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Computer tomography (CT) Toshiba Aquilion 64; DEPTH, sediment/rock; File content; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Manganese nodules, relative volume; Manganese nodules, volume; MARUM; MUC; MUC-27; MultiCorer; Number of slice; Number of voxels, matrix sediment; Sediment, bioturbated lower layer, relative volume; Sediment, bioturbated lower layer, volume; Sediment, homogenized upper layer, relative volume; Sediment, homogenized upper layer, volume; SO268/2; SO268/2_135-1; Sonne_2; X-ray attenuation, matrix sediment, mean; X-ray attenuation, matrix sediment, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 11056 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 10
    facet.materialart.
    Unbekannt
    Computed tomography analysis of multicorer SO268/2_135-1, core 2 (2024)
    PANGAEA
    Details
    Publikationsdatum: 2024-06-23
    Beschreibung: Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters 〉~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
    Schlagwort(e): Binary Object; Bioturbation; Bioturbation, volume; Center for Marine Environmental Sciences; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Computer tomography (CT) Toshiba Aquilion 64; DEPTH, sediment/rock; File content; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Manganese nodules, relative volume; Manganese nodules, volume; MARUM; MUC; MUC-27; MultiCorer; Number of slice; Number of voxels, matrix sediment; Sediment, bioturbated lower layer, relative volume; Sediment, bioturbated lower layer, volume; Sediment, homogenized upper layer, relative volume; Sediment, homogenized upper layer, volume; SO268/2; SO268/2_135-1; Sonne_2; X-ray attenuation, matrix sediment, mean; X-ray attenuation, matrix sediment, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 10352 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...