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  • 1
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    Der Kapuzinersandstein (2022)
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: Der Kapuzinersandstein ist ein gelblich brauner bis tief dunkelrotbrauner Sandstein, der in einem eng begrenzten Gebiet am westlichen Rheingrabenrand bei Grünstadt/ Pfalz vorkommt. Es handelt sich um einen verfestigten Meeressand aus der Alzey-Formation des Oligozäns. Das Vorkommen beschränkt sich auf wenige Abbaustellen, deren Gewinnungstätigkeit seit etwa hundert Jahren erloschen ist. Die Körnungslinie der Sandsteine und die durch Eisen(hydr-)oxide verursachte Kornbindung ist erheblichen Schwankungen unterworfen. Hauptbestandteile sind Quarz und Gesteinsbruchstücke. Siliziumoxid und Eisenoxide machen mehr als 95 % der chemischen Zusammensetzung aus. Zahlreiche Profan- und Sakralbauten sowie die Burgruine Battenberg wurden unter teilweiser oder ausschließlicher Verwendung von Kapuzinersandstein errichtet.
    Beschreibung: Abstract: The yellowish-brown to dark red-brown coloured Kapuziner sandstone occurs within a small confined area at the western border of the Upper Rhine Graben near Grünstadt/Palatinate. It is considered as a coastal marine formation of Tertiary age (Alzey Formation, Oligocene). The extraction as a building stone ceased almost a hundred years ago and only a few relics of quarries are left today. The grain size of the sandstone varies on a large scale as well as the mechanical stability. Main components are quartz and rock fragments. Silicon oxide and iron oxides contribute more than 95 % to the chemical composition of the sedimentary rock. Multiple secular and sacred buildings as well as the Battenberg Castle have been erected partially or completely using Kapuziner sandstone .
    Beschreibung: research
    Schlagwort(e): ddc:553.53 ; Sandstein ; Pfalz ; Oberrheingraben ; Petrographie ; Geochemie ; Architektur ; Werkstein
    Sprache: Deutsch
    Materialart: doc-type:article , publishedVersion
    Standort Signatur Erwartet Verfügbarkeit
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    CITATION GEO-LEO
  • 2
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    Platypontonia ngae sp. nov., a new symbiotic shrimp (Decapoda: Palaemonidae) living inside a boring gastrochaenid bivalve mollusk from the Philippines (2024)
    In:  Zootaxa vol. 5476 no. 1, pp. 89-98
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: A new symbiotic palaemonid shrimp Platypontonia ngaesp. nov., is described based on a male-female pair found inside the mantle cavity of a gastrochaenid bivalve mollusk collected on a coral slope on the island Panglao, Philippines. The new species constitutes the third member of the genus Platypontonia Bruce, 1968. The new species is described, figured and compared with its congeners.
    Schlagwort(e): Malacostraca ; Caridea ; symbiosis ; Mollusca ; Gastrochaenidae ; Philippines
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 3
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    First occurrence of the mite Litarachna duboscqi Walter, 1925 (Acariformes: Pontarachnidae) in the central Mediterranean Sea (2024)
    In:  Ecologica Montenegrina vol. 74, pp. 21-26
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: The present paper reports the water mite identified as Litarachna duboscqi collected in March 2024 from nautical ropes in the harbour of Trapani (Sicily). It is the first record for southern Italy and the central Mediterranean Sea.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/other
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Critical thermal maxima and oxygen uptake in Elysia viridis, a sea slug that steals chloroplasts to photosynthesize (2024)
    In:  Journal of Experimental Biology vol. 227 no. 10
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: Photosynthetic animals produce oxygen, providing an ideal lens for studying how oxygen dynamics influence thermal sensitivity. The algivorous sea slug Elysia viridis can steal and retain chloroplasts from the marine alga Bryopsis sp. for months when starved, but chloroplast retention is mere weeks when they are fed another green alga, Chaetomorpha sp. To examine plasticity in thermal tolerance and changes in net oxygen exchange when fed and starving, slugs fed each alga were acclimated to 17°C (the current maximum temperature to which they are exposed in nature) and 22°C (the increase predicted for 2100) and measured at different points during starvation. We also examined increased illumination to evaluate a potential tradeoff between increased oxygen production but faster chloroplast degradation. Following acclimation, we subjected slugs to acute thermal stress to determine their thermal tolerance. We also measured net oxygen exchange before and after acute thermal stress. Thermal tolerance improved in slugs acclimated to 22°C, indicating they can acclimate to temperatures higher than they naturally experience. All slugs exhibited net oxygen uptake, and rates were highest in recently fed slugs before exposure to acute thermal stress. Oxygen uptake was suppressed following acute thermal stress. Under brighter light, slugs exhibited improved thermal tolerance, possibly because photosynthetic oxygen production alleviated oxygen limitation. Accordingly, this advantage disappeared later in starvation when photosynthesis ceased. Thus, E. viridis can cope with heatwaves by suppressing metabolism and plastically adjusting heat tolerance; however, starvation influences a slug's thermal tolerance and oxygen uptake such that continuous access to algal food for its potential nutritive and oxygenic benefits is critical when facing thermal stress.
    Schlagwort(e): CTmax ; Kleptoplasty ; Metabolism ; Sacoglossa ; Starvation
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 5
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    Global species hotspots and COI barcoding cold spots of marine Gastropoda (2024)
    In:  Biodiversity and Conservation vol. 2024
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: With the on-going efforts in digitising museum collections, increased participation of citizen scientists, and greater accessibility to research data, accurately determining global patterns of diversity has become more achievable. Here, we used occurrence records from the Global Biodiversity Information Facility, with annotation of authoritative taxonomy, to evaluate the taxonomic richness of marine gastropods and to identify global species hotspots for this group. We also reviewed the availability of genetic resources within hotspots to detect potentially important regions where reference sequences for identifying these organisms are wanting. We find 33,268 unique and valid species under 3291 genera belonging to 380 gastropod families that have been recorded from 1662 to 2023. Globally, only 12.1% of reported species are linked to a COI barcode, whilst 27.1% of the families are represented with complete mitogenomes. Georeferenced records show the wide albeit disparate distribution of observations and species counts. The compiled dataset, published by organisations that are restricted to 55 countries, reveal a seeming lack of local submissions, but nonetheless demonstrates the growing contribution of citizen science platforms. We present 28 marine provinces across the globe as putative gastropod species hotspots and call for further work and stronger involvement, particularly within COI barcoding cold spots, to address the observed genetic reference inequity. Lastly, we highlight the important and relevant role of open and inclusive science to biodiversity monitoring and research.
    Schlagwort(e): Marine gastropods ; Species occurrence ; Global diversity ; COI ; Open science ; Citizen science
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Revision of Troporhogas Cameron (Hymenoptera, Braconidae, Rogadinae) with six new species from India and Thailand (2024)
    In:  ZooKeys vol. 1206, pp. 99-136
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: The genus Troporhogas Cameron, 1905 from the Indo-Malayan region is reviewed. Six new species, Troporhogas alboniger Quicke, Loncle & Butcher, sp. nov., T. benjamini Quicke, Loncle & Butcher, sp. nov., T. hugoolseni Quicke, Loncle & Butcher, sp. nov., T. rafaelnadali Quicke, Loncle & Butcher, sp. nov., and T. rogerfedereri Quicke, Loncle & Butcher, sp. nov. from Thailand, and T. anamikae Ranjith, sp. nov. from India are described and illustrated photographically, bringing the total number of species of the genus known from the Indo-Malayan Region to 19. Troporhogas is recorded for the first time from India. A key is included to differentiate Troporhogas species. A four-gene ML tree based on COI, Cytb, 16S and 28S is reconstructed, representing the six new species. Troporhogas contrastus Long, 2014, originally described from Vietnam, is recorded from Thailand for the first time. The holotypes of the type species, Troporhogas tricolor Cameron, 1905 and that of its junior synonym Iporhogas are illustrated, and photographs are presented of all the species known only from China and Sri Lanka. Sexual colour dimorphism of males of several species is described for the first time. Drawings summarising the different patterns of black marks on the metasoma that aid species recognition are presented.
    Schlagwort(e): Checklist ; Iporhogas ; ML phylogeny ; new species ; Rogadinae ; Southeast ; Asia ; Troporhogas
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Sea level change along the Italian coast during the Holocene and projections for the future (2012)
    Elsevier Science Limited
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: Published and new sea level data are used to provide projections of sea level change in Italy for the year 2100 by adding new isostatic and tectonic component to the IPCC and Rahmstorf projections. Comparison of the observations from more than 130 sites (with different geomorphological and archaeological sea level markers) with the predicted sea level curves provides estimates of the vertical tectonic contribution to the relative sea level change. The results are based on the most recent ANU model for the ice sheets of both hemispheres, including an alpine deglaciation model. On the basis of the eustatic, tectonic and isostatic components to the sea level change, projections are provided for marine inundation scenarios for the Italian coastal plains for the year 2100, that today are at elevations close to current sea level.
    Beschreibung: Published
    Beschreibung: 250-257
    Beschreibung: JCR Journal
    Beschreibung: restricted
    Schlagwort(e): Sea level change ; Italian coasts ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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    ARTIKEL (OA)
  • 8
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    Morphometry and elevation of the last interglacial tidal notches in tectonically stable coasts of the Mediterranean Sea (2019)
    Elsevier B.V
    Details
    Publikationsdatum: 2024-07-09
    Beschreibung: We report detailed morphometric observations on several MIS 5.5 and a few older (MIS 11, 21, 25) fossil tidal notches shaped along carbonate coasts at 80 sites in the central Mediterranean Sea and at an additional six sites in the eastern and western Mediterranean. At each site, we performed precise measurements of the fossil tidal notch (FTN) width and depth, and of the elevation of its base relative to the base of the present tidal notch (PTN). The age of the fossil notches is obtained by correlation with biologic material associated with the notches at or very close to the site. This material was previously dated either through radiometric analysis or by its fossiliferous content. The width (i.e. the difference in elevation between base and top) of the notches ranges from 1.20 to 0.38 m, with a mean of 0.74 m. Although the FTN is always a few centimetres wider than the PTN, probably because of the lack of the biological reef coupled with a small erosional enlargement in the FTN, the broadly comparable width suggests that tide amplitude has not changed since MIS 5.5 times. This result can be extended to the MIS 11 features because of a comparable notch width, but not to the MIS 21 and 25 epochs. Although observational control of these older notches is limited, we regard this result as suggesting that changes in tide amplitude broadly occurred at the Early-Middle Pleistocene transition. The investigated MIS 5.5 notches are located in tectonically stable coasts, compared to other sectors of the central Mediterranean Sea where they are uplifted or subsided to ~100m and over. In these stable areas, the elevation of the base of the MIS 5.5 notch ranges from 2.09 to 12.48 m, with a mean of 5.7 m. Such variability, although limited, indicates that small land movements, deriving from slow crustal processes, may have occurred in stable areas. We defined a number of sectors characterized by different geologic histories, where a careful evaluation of local vertical land motion allowed the selection of the best representative elevation of the MIS 5.5 peak highstand for each sector. This elevation has been compared against glacial isostatic adjustment (GIA) predictions drawn from a suite of ice-sheet models (ICE-G5, ICE-G6 and ANICE-SELEN) that are used in combination with the same solid Earth model and mantle viscosity parameters. Results indicate that the GIA signal is not the main cause of the observed highstand variability and that other mechanisms are needed. The GIA simulations show that, even within the Mediterranean Basin, the maximum highstand is reached at different times according to the geographical location. Our work shows that, besides GIA, even in areas considered tectonically stable, additional vertical tectonic movements may occur with a magnitude that is significantly larger than the GIA.
    Beschreibung: Published
    Beschreibung: 600-623
    Beschreibung: 5A. Ricerche polari e paleoclima
    Beschreibung: JCR Journal
    Schlagwort(e): Fossil and present tidal notches ; Glacial isostatic adjustment (GIA)
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 9
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    Anomolous multi-origin marine notch sites: Three case studies in the central Mediterranean Sea (2018)
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    Publikationsdatum: 2024-07-09
    Beschreibung: We present and discuss the genesis, age and evolution of indented landforms carved at sea level in correspondence of carbonatic headlands in three sites of the central Mediterranean coasts, between Marseille (France) and Balzi Rossi (Italy), the island of Tavolara (Sardinia, Italy) and the promontory of Tindari (Sicily, Italy). The shape of these anomalous notches landforms can be referred to is very similar to tidal notches, despite their genesis and morphometric parameters are different from those suggested by other Authors for the central Mediterranean area. Two of these sites are located in tectonically stable areas, while the third falls is located in an uplifting area. Those The notches we investigated along the coast of southern France, are submerged notch-type landforms located in the vicinities surroundings of current modern tidal notches. At Tavolara island, these anomalous notches are placed at about 25 m b.s.l. these landforms and have the shape of “mushroom-like notches”. Finally, those investigated along the metamorphic-carbonatic promontory of Tindari, are marine and abrasional notches, that have been uplifted, likely during the Holocene
    Beschreibung: Published
    Beschreibung: 4-16
    Beschreibung: 3A. Geofisica marina
    Beschreibung: JCR Journal
    Schlagwort(e): Marine notchesMediterranean coastVertical tectonics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 10
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    Tidal notches in Mediterranean Sea: a comprehensive analysis (2015)
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    Publikationsdatum: 2024-07-09
    Beschreibung: Recent works (Evelpidou et al., 2012) suggest that the modern tidal notch is disappearing worldwide due sea level rise over the last century. In order to assess this hypothesis, we measured modern tidal notches in several of sites along the Mediterranean coasts. We report observations on tidal notches cut along carbonate coasts from 73 sites from Italy, France, Croatia, Montenegro, Greece, Malta and Spain, plus additional observations carried outside the Mediterranean. At each site, we measured notch width and depth, and we described the characteristics of the biological rim at the base of the notch. We correlated these parameters with wave energy, tide gauge datasets and rock lithology. Our results suggest that, considering ‘the development of tidal notches the consequence of midlittoral bioerosion’ (as done in Evelpidou et al., 2012) is a simplification that can lead to misleading results, such as stating that notches are disappearing. Important roles in notch formation can be also played by wave action, rate of karst dissolution, salt weathering and wetting and drying cycles. Of course notch formation can be augmented and favoured also by bioerosion which can, in particular cases, be the main process of notch formation and development. Our dataset shows that notches are carved by an ensemble rather than by a single process, both today and in the past, and that it is difficult, if not impossible, to disentangle them and establish which one is prevailing. We therefore show that tidal notches are still forming, challenging the hypothesis that sea level rise has drowned them.
    Beschreibung: Published
    Beschreibung: 66-84
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: JCR Journal
    Beschreibung: restricted
    Schlagwort(e): Tidal notches, tides, sea level ; 04. Solid Earth::04.04. Geology::04.04.04. Marine geology
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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