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
  • 2020-2024  (42.969)
  • 2015-2019  (787.995)
  • 2010-2014  (22)
  • 1960-1964  (7)
  • 2024  (9.972)
  • 2022  (33.021)
  • 2016  (787.994)
Sammlung
Schlagwörter
Verlag/Herausgeber
Sprache
Erscheinungszeitraum
Jahr
  • 1
    facet.materialart.
    Unbekannt
    The Science, Engineering, and Validation of Marine Carbon Dioxide Removal and Storage (2024)
    Annual Reviews
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Scenarios to stabilize global climate and meet international climate agreements require rapid reductions in human carbon dioxide (CO2) emissions, often augmented by substantial carbon dioxide removal (CDR) from the atmosphere. While some ocean-based removal techniques show potential promise as part of a broader CDR and decarbonization portfolio, no marine approach is ready yet for deployment at scale because of gaps in both scientific and engineering knowledge. Marine CDR spans a wide range of biotic and abiotic methods, with both common and technique-specific limitations. Further targeted research is needed on CDR efficacy, permanence, and additionality as well as on robust validation methods—measurement, monitoring, reporting, and verification—that are essential to demonstrate the safe removal and long-term storage of CO 2 . Engineering studies are needed on constraints including scalability, costs, resource inputs, energy demands, and technical readiness. Research on possible co-benefits, ocean acidification effects, environmental and social impacts, and governance is also required.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OCEANREP)
  • 2
    facet.materialart.
    Unbekannt
    PalVol v1: a proxy-based semi-stochastic ensemble reconstruction of volcanic stratospheric sulfur injection for the last glacial cycle (140 000–50 BP) (2024)
    Copernicus Publications (EGU)
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Perturbations in stratospheric aerosol due to explosive volcanic eruptions are a primary contributor to natural climate variability. Observations of stratospheric aerosol are available for the past decades, and information from ice cores has been used to derive estimates of stratospheric sulfur injections and aerosol optical depth over the Holocene (approximately 10 000 BP to present) and into the last glacial period, extending back to 60 000 BP. Tephra records of past volcanism, compared to ice cores, are less complete but extend much further into the past. To support model studies of the potential impacts of explosive volcanism on climate variability across timescales, we present here an ensemble reconstruction of volcanic stratospheric sulfur injection (VSSI) over the last 140 000 years that is based primarily on terrestrial and marine tephra records. VSSI values are computed as a simple function of eruption magnitude based on VSSI estimates from ice cores and satellite observations for identified eruptions. To correct for the incompleteness of the tephra record, we include stochastically generated synthetic eruptions assuming a constant background eruption frequency from the ice core Holocene record. While the reconstruction often differs from ice core estimates for specific eruptions due to uncertainties in the data used and reconstruction method, it shows good agreement with an ice-core-based VSSI reconstruction in terms of millennial-scale cumulative VSSI variations over the Holocene. The PalVol reconstruction provides a new basis to test the contributions of forced vs. unforced natural variability to the spectrum of climate and the mechanisms leading to abrupt transitions in the palaeoclimate record with low- to high-complexity climate models. The PalVol volcanic forcing reconstruction is available at https://doi.org/10.26050/WDCC/PalVolv1 (Toohey and Schindlbeck-Belo, 2023).
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OCEANREP)
  • 3
    facet.materialart.
    Unbekannt
    Transcriptomic responses of Mediterranean sponges upon encounter with symbiont microbial consortia (2024)
    Biomed Central | Springer
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Background: Sponges (phylum Porifera) constantly interact with microbes. They graze on microbes from the water column by filter-feeding and they harbor symbiotic partners within their bodies. In experimental setups, sponges take up symbionts at lower rates compared with seawater microbes. This suggests that sponges have the capacity to differentiate between microbes and preferentially graze in non-symbiotic microbes, although the underlying mechanisms of discrimination are still poorly understood. Genomic studies showed that, compared to other animal groups, sponges present an extended repertoire of immune receptors, in particular NLRs, SRCRs, and GPCRs, and a handful of experiments showed that sponges regulate the expression of these receptors upon encounter with microbial elicitors. We hypothesize that sponges may rely on differential expression of their diverse repertoire of poriferan immune receptors to sense different microbial consortia while filter-feeding. To test this, we characterized the transcriptomic response of two sponge species, Aplysina aerophoba and Dysidea avara, upon incubation with microbial consortia extracted from A. aerophoba in comparison with incubation with seawater microbes. The sponges were sampled after 1 h, 3 h, and 5 h for RNA-Seq differential gene expression analysis. Results: D. avara incubated with A. aerophoba-symbionts regulated the expression of genes related to immunity, ubiquitination, and signaling. Within the set of differentially-expressed immune genes we identified different families of Nucleotide Oligomerization Domain (NOD)-Like Receptors (NLRs). These results represent the first experimental evidence that different types of NLRs are involved in microbial discrimination in a sponge. In contrast, the transcriptomic response of A. aerophoba to its own symbionts involved comparatively fewer genes and lacked genes encoding for immune receptors. Conclusion: Our work suggests that: (i) the transcriptomic response of sponges upon microbial exposure may imply “fine-tuning” of baseline gene expression as a result of their interaction with microbes, (ii) the differential response of sponges to microbial encounters varied between the species, probably due to species-specific characteristics or related to host’s traits, and (iii) immune receptors belonging to different families of NLR-like genes played a role in the differential response to microbes, whether symbionts or food bacteria. The regulation of these receptors in sponges provides further evidence of the potential role of NLRs in invertebrate host-microbe interactions. The study of sponge responses to microbes exemplifies how investigating different animal groups broadens our knowledge of the evolution of immune specificity and symbiosis.
    Materialart: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OCEANREP)
  • 4
    facet.materialart.
    Unbekannt
    The Eurasian Arctic Ocean along the MOSAiC drift in 2019–2020: An interdisciplinary perspective on physical properties and processes (2024)
    University of California Press
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC, 2019–2020), a year-long drift with the Arctic sea ice, has provided the scientific community with an unprecedented, multidisciplinary dataset from the Eurasian Arctic Ocean, covering high atmosphere to deep ocean across all seasons. However, the heterogeneity of data and the superposition of spatial and temporal variability, intrinsic to a drift campaign, complicate the interpretation of observations. In this study, we have compiled a quality-controlled physical hydrographic dataset with best spatio-temporal coverage and derived core parameters, including the mixed layer depth, heat fluxes over key layers, and friction velocity. We provide a comprehensive and accessible overview of the ocean conditions encountered along the MOSAiC drift, discuss their interdisciplinary implications, and compare common ocean climatologies to these new data. Our results indicate that, for the most part, ocean variability was dominated by regional rather than seasonal signals, carrying potentially strong implications for ocean biogeochemistry, ecology, sea ice, and even atmospheric conditions. Near-surface ocean properties were strongly influenced by the relative position of sampling, within or outside the river-water influenced Transpolar Drift, and seasonal warming and meltwater input. Ventilation down to the Atlantic Water layer in the Nansen Basin allowed for a stronger connectivity between subsurface heat and the sea ice and surface ocean via elevated upward heat fluxes. The Yermak Plateau and Fram Strait regions were characterized by heterogeneous water mass distributions, energetic ocean currents, and stronger lateral gradients in surface water properties in frontal regions. Together with the presented results and core parameters, we offer context for interdisciplinary research, fostering an improved understanding of the complex, coupled Arctic System.
    Materialart: Article , PeerReviewed
    Format: text
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OCEANREP)
  • 5
    facet.materialart.
    Unbekannt
    Yedoma and muck – New cryolithological studies of permafrost deposits in the Klondike Goldfields (Central Yukon, Canada) (2024)
    In:  EPIC3
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Over the last 25 years, Canadian scientists have studied the permafrost environmental archives in the Klondike Goldfields south of Dawson City (e.g. Fraser and Burn, 1997; Kotler and Burn, 2010; Froese et al., 2009; Porter et al., 2016; Monteath et al., 2023). In 2023, a small Canadian-German team visiting this area to sample mining exposures in the Klondike area (Figure 1A). The goal was to conduct studies on ground ice (ice wedges and pore ice) and frozen sediments to reconstruct past landscape and climate conditions. Detailed profiles were sampled at three sites at Little Blanche Creek, Whitman Gulch and Bear Creek. Ice wedges were described in terms of their size, the color of ice, internal structure, existence and form of gas bubbles and were sampled by chain saw as blocks. The frozen sediment was cleaned, and ice, sediment and cryostructures were described, followed by sediment sampling with an axe and hammer. Separately, sediment cores were collected with a battery driven drill for biomarker studies. In our presentation, we present the first results of new field and laboratory studies. This concerns age determinations, sediment data, stable isotopes and hydrochemistry of the ground ice. The mean ice content measured was 38 ± 10 wt%. We expect new knowledge regarding the reconstruction of Late Quaternary environment of Central Yukon. References Fraser, T.A. and Burn, C.R. 1997: On the nature and origin of "muck" deposits in the Klondike area, Yukon Territory, Canadian Journal of Earth Sciences 34(10), 1333-1344, https://doi.org/10.1139/e17-106. Froese, D., Zazula, G., Westgate, J., Preece, S., Sanborn, P. A., Reyes, A., and Pearce, N. 2009: The Klondike goldfields and Pleistocene environments of Beringia, GSA Today, 19, 4-10, https://doi.org/10.1130/GSATG54A.1. Kotler, E. and Burn, C. R. 2000: Cryostratigraphy of the Klondike "muck" deposits, west-central Yukon Territory, Can. J. Earth Sci., 37, 849-861, https://doi.org/10.1139/e00-013. Monteath, A. J., Kuzmina, S., Mahony, M., Calmels, F., Porter, T., Mathewes, R., Sanborn, P., Zazula, G., Shapiro, B., Murchie, T. J., Poinar, H. N., Sadoway, T., Hall, E., Hewitson, S., and Froese, D. 2023: Relict permafrost preserves megafauna, insects, pollen, soils and pore-ice isotopes of the mammoth steppe and its collapse in central Yukon, Quaternary Science Reviews, 299, 107878, https://doi.org/10.1016/j.quascirev.2022.107878. Porter, T. J., Froese, D. G., Feakins, S. J., Bindeman, I. N., Mahony, M. E., Pautler, B. G., Reichart, G. J., Sanborn, P. T., Simpson, M. J., and Weijers, J. W. H. 2016: Multiple water isotope proxy reconstruction of extremely low last glacial temperatures in Eastern Beringia (Western Arctic), Quaternary Science Reviews, 137, 113-125, https://doi.org/10.1016/j.quascirev.2016.02.006.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Conference , NonPeerReviewed
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 6
    facet.materialart.
    Unbekannt
    Ice sheet–free West Antarctica during peak early Oligocene glaciation (2024)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science, American Association for the Advancement of Science (AAAS), ISSN: 0036-8075
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: One of Earth’s most fundamental climate shifts – the greenhouse-icehouse transition 34 Ma ago – initiated Antarctic ice-sheet build-up, influencing global climate until today. However, the extent of the ice sheet during the Early Oligocene Glacial Maximum (~33.7–33.2 Ma) that immediately followed this transition, a critical knowledge gap for assessing feedbacks between permanently glaciated areas and early Cenozoic global climate reorganization, is uncertain. Here, we present shallow-marine drilling data constraining earliest Oligocene environmental conditions on West Antarctica’s Pacific margin – a key region for understanding Antarctic ice sheet-evolution. These data indicate a cool-temperate environment, with mild ocean and air temperatures preventing West Antarctic Ice Sheet formation. Climate-ice sheet modeling corroborates a highly asymmetric Antarctic ice sheet, thereby revealing its differential regional response to past and future climatic change.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 7
    facet.materialart.
    Unbekannt
    Marl Mining Activity and Negative Repercussions for Two Hillside Villages (Northern Italy) (2024)
    MDPI
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Coniolo and Brusaschetto, are two small towns located in the Monferrato area of the Alessandria Province, northern Italy. These communities have similar histories related to develop ment and subsequent abandonment of marl quarry activity that began more than a century ago and continued until recently. Quarrying occurred until soil conditions, water infiltration, and excessive depth made cost of extracting and7 lifting material prohibitive. Quarries consisted of tunnels located directly beneath the towns at about 150 m below ground surface. Collapse of the tunnels led to surface subsidence and destruction of overlying homes and much of the municipal infrastructure. In the early Twentieth Century, regulations pertaining to mine and quarry safety were typically deficient, entirely absent, or not followed. Extractive activities of non-energy mineral resources from quarries and mines were and continue to be widespread in Italy, which currently ranks fifth among what are now countries of the European Union (EU). Mining sites are present in all regions of Italy, particu larly in the northern part of the country and along coasts, often in areas of geohydrogeological risk. Consequences of anthropogenic pressures that alter the natural environment, such as the physical size of aquifer drawdowns, are linked to issues for a number of extractive sites across the country. This report analyzes historical and technical documents, conducts a geomorphological analysis of hilly slopes surrounding these communities, and examines urban planning and geophysical surveys to determine the impact of subsurface quarrying activities on the overlying ground surface. The study highlights significant problems that are applicable to other localities globally. This research demonstrates: (a) the importance of geological considerations to development and abandonment of mining activity in inhabited areas; (b) the importance of establishing and following safety protocols; and (c) the manner in which economic interests can take precedence over the well-being and lives of those employed to extract resources.
    Beschreibung: Published
    Beschreibung: 181
    Beschreibung: JCR Journal
    Schlagwort(e): mining exploitation ; mining hazards ; ground subsidence ; environmental mitigation ; abandoned villages ; Casale Monferrato ; Piedmont
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 8
    facet.materialart.
    Unbekannt
    Relación de Acanthuridae y Scaridae con factores bióticos y abióticos en el occidente de Cuba (2024)
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: Acanthuridae y Scaridae son familias de peces herbívoros que constituyen los principales controladores de macroalgas en arrecifes coralinos. Sobre su distribución y abundancia inciden factores bióticos y abióticos, naturales u originados por el hombre. El objetivo de esta investigación fue analizar la relación de la densidad y biomasa de Acanthuridae y Scaridae con variables bióticas y abióticas en arrecifes con diferente nivel de protección del occidente de Cuba. Para esto, se usaron comparaciones múltiples de media por rangos y pruebas de correlaciones por rangos de Spearman en tres localidades muestreadas entre 2014 y 2017: Municipio Playa (La Habana), Bahía de Cochinos (Matanzas) y María la Gorda (Pinar del Río), las dos últimas ubicadas en Áreas Marinas Protegidas. Las Áreas Marinas Protegidas analizadas mostraron los indicadores más satisfactorios de Scaridae, que disminuyeron en las localidades con impacto antrópico. La contaminación y la presión de pesca en La Habana, mantenida por años, parecen ser las causas principales de la ausencia de adultos de Scaridae. La mayor densidad y biomasa de peces carnívoros (familia Lutjanidae) pudieran ser factores limitantes para la familia Acanthuridae, la cual exhibió mayor densidad y biomasa en sitios con mayor disponibilidad de alimento (macroalgas de los géneros Sargassum, Amphiroa y Galaxaura), menor complejidad topográfica y mayor antropización.
    Beschreibung: Acanthuridae and Scaridae are families of herbivorous fishes that are the main controllers of macroalgae in coral reefs. Its distribution and abundance are affected by biotic and abiotic factors, natural or originated by man. The objective of this research was to analyze the relationship of the density and biomass of Acanthuridae and Scaridae with biotic and abiotic variables in reefs with different levels of protection in western Cuba. For this, multiple comparisons of means by ranks and Spearman’s rank correlation tests were used in three localities sampled between 2014 and 2017: Municipio Playa (Havana), Bahía de Cochinos (Matanzas) and María la Gorda (Pinar del Rio), the last two located in Marine Protected Areas. The Marine Protected Areas analyzed showed the most satisfactory indicators of Scaridae, which decreased in localities with anthropogenic impact. Pollution and fishing pressure in Havana, maintained for years, seem to be the main causes of the absence of Scaridae adults. Higher densities and biomass of carnivorous fishes (Lutjanidae family) could be limiting factors for the Acanthuridae family. Acanthuridae exhibited higher density and biomass in sites with greater food availability (macroalgae of the genera Sargassum, Amphiroa and Galaxaura), less topographic complexity and more anthropized.
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Algas ; Áreas protegidas ; Corales ; Peces depredadores ; Peces herbívoros ; Algae ; Corals ; Herbivorous fishes ; Predatory fishes ; Protected areas
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Format: pp.141-165
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 9
    facet.materialart.
    Unbekannt
    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: 2024-07-11
    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
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 10
    facet.materialart.
    Unbekannt
    The published complete mitochondrial genome of Blue-fronted Redstart (Phoenicurus frontalis) is a chimera and includes DNA from Pink-rumped RosefinchCarpodacus waltoni eos (Aves: Passeriformes) (2024)
    In:  Mitochondrial DNA Part B vol. 9 no. 7, pp. 861-864
    Details
    Publikationsdatum: 2024-07-11
    Beschreibung: The complete mitochondrial genome of Blue-fronted Redstart (Phoenicurus frontalis), GenBank accession number MT360379 (NC_053917), was published by Li and colleages in 2020. Here we show that this mitogenome is actually a chimera containing DNA fragments of both P. frontalis (15,518 bp, 92.5%) and Pink-rumped Rosefinch (Carpodacus waltoni eos, 1258 bp, 7.5%). This mitogenome has been re-used in at least three phylogenies. Our study confirms that mitogenomes are best verified with multiple gene trees, and that any anomalies should be investigated by direct comparison of sequences.
    Schlagwort(e): Chimerism ; laboratoryerrors ; mitogenome ; sequence artifacts ; Muscicapidae
    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)
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...