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  • 1
    Book
    Book
    Conservation palaeobiology of marine ecosystems (2023)
    London : The Geological Society
    Details Availability
    Keywords: Aufsatzsammlung ; Fossile Meerestiere ; Paläobiogeografie ; Artenreichtum ; Paläontologie ; Aufschluss ; Fundstätte ; Fossil ; Meeressediment ; Historische Geologie ; Geobiologie ; Palökologie ; Biodiversität ; Meeresökosystem ; Geologische Stätte ; Paläobiologie ; Umweltveränderung ; Auswirkung ; Historische Umweltforschung
    Type of Medium: Book
    Pages: vi, 402 Seiten , Illustrationen, Karten, Diagramme
    ISBN: 9781786205773
    Series Statement: Geological Society special publication no. 529
    Language: English
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    GEOMAR CATALOGUE
    Link to Library Catalog
    get availability status
  • 2
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    Abundance of sclerobionts and presence of malformation on Middle Devonian brachiopods from Skały, Poland (Dobruchna Member, Skały Formation) (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-27
    Description: Brachiopod shells were collected from a large heap adjacent to the Semav Stones Skała Quarry in Skały (Holy Cross Mountains, Poland) in order to describe sclerobiont diversity, abundance and colonization patterns. All specimens derive from the Dobruchna Brachiopod Shale Member of the shaly-calcareous Skały Formation (ensensis conodont Zone, Eifelian). Both articulated shells and isolated valves were sampled, but fragmentary specimens were excluded. Each brachiopod specimens (separately dorsal and ventral valves) was inspected under a binocular microscope for the presence of sclerobionts and shell malformations. Each sclerobiont was determined to the lowest possible taxonomic level and counted. Well-separated colonies of clonal epibionts were treated as separate specimens. Only brachiopod specimens with at least one sclerobiont or malformation are included in the dataset.
    Keywords: Allonema; Anticalyptraeida; Ascodictyon; Auloporida; borers; Brachiopoda; Brachiopoda indeterminata; Branched microborings; Bryozoa indeterminata; Canaliparva; Clionoides; Clionolithes; Cornulitida; Counting, light microscope; Crinoidea; Cyclostomata; Cystoporata; Deliella; Devonian; encrusters; Hederelloidea; Identification; Indeterminata; Malformation; Microconchida; Oichnus; Orbiculoidea; OUTCROP; Outcrop sample; Palaeoecology; Poland; Productida; Rothpletzella; Rugosa; Sclerobionts; Skaly_quarry; Specimen identification; Sphenothallus; Taxon/taxa; Tolypammina; Trepostomata; Valve; Vinella
    Type: Dataset
    Format: text/tab-separated-values, 80832 data points
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    DATA PANGAEA
  • 3
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    Abundance of skeletobionts on Middle Devonian brachiopods from Madène el Mrakib, Morocco (Eifelian–Givetian transition, Taboumakhloûf Formation) and R code for analysing colonization patterns (2024)
    PANGAEA
    Details
    Publication Date: 2024-05-21
    Description: Brachiopod shells were collected from the scree directly adjacent to the exposures in Madène el Mrakib in order to describe skeletobiont diversity, abundance and colonization patterns, and their relation to host shell morphology. The studied specimens originate from the fossiliferous, thin-bedded, 2.5 m-thick nodular limestone (mudstone to packstone) belonging to Taboumakhloûf Formation and placed at the transition of the uppermost Eifelian (ensensis Zone) and lowermost Givetian (hemiansatus Zone) based on conodont dating. Further details can be found in Zatoń et al. (2022). The brachiopod specimens, both articulated shells and isolated valves, were collected randomly without regard for the presence of skeletobionts. Each brachiopod specimen (separately dorsal and ventral valves) was inspected under a binocular microscope and each skeletobiont was determined to the lowest possible taxonomic level and counted. For colonial organisms, each individual colony was counted as one specimen. Among brachiopod specimens without any skeletobionts only well preserved and articulated shells are included in the dataset. The external surface area of the selected, well-preserved and complete shells of the five dominant brachiopod species was measured using a square-gridded plankton net (1 x 1 cm), with a mesh size of 1 mm2.
    Keywords: Allonema; Anticalyptraeida; Ascodictyon; Auloporida; Bioerosion; Brachiopoda; Brachiopoda indeterminata; Bryozoa indeterminata; Clionolithes; Coenitidae; Cornulitida; Craniidae; Crinoidea; Cyclostomata; Cystoporata; Devonian; Encrustation; Favositida; Fenestrata; Hederelloidea; Light microscope; Madene_el_Mrakib; Madène el Mrakib section, Mader Basin, eastern Anti-Atlas, Morocco; Microconchida; Oichnus; OUTCROP; Outcrop sample; Palaeoecology; Problematica; Productida; Rhabdomesida; Rothpletzella; Rugosa; Sclerobionts; Shell completeness; Shell size; Skeletobionts; Specimen identification; Sponge; Surface area; Surface preservation; Taxon/taxa; Tetrataxis; Tolypammina; Trepostomata; Valve; Vinella
    Type: Dataset
    Format: text/tab-separated-values, 62260 data points
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    DATA PANGAEA
  • 4
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    Palaeontological evidence for community-level decrease in mesopelagic fish size during Pleistocene climate warming in the eastern Mediterranean (2022)
    Details
    Publication Date: 2022-11-14
    Description: Abstract Mesopelagic fishes are an important element of marine food webs, a huge, still mostly untapped food resource, and great contributors to the biological carbon pump, whose future under climate change scenarios are unknown. The shrinking of commercial fishes within decades has been an alarming observation, but its causes remain contended. Here, we investigate the effect of warming climate on mesopelagic fish size in the eastern Mediterranean Sea during a glacial–interglacial–glacial transition of the Middle Pleistocene (marine isotope stages 20–18; 814–712 Kyr B.P.), which included a 4 °C increase of global seawater temperature. Our results based on fossil otoliths show that the median size of lanternfishes, one of the most abundant groups of mesopelagic fishes in fossil and modern assemblages, declined by ~35% with climate warming at the community level. However, individual mesopelagic species showed different and often opposing trends in size across the studied time interval, suggesting that climate warming in the interglacial resulted in an ecological shift toward increased relative abundance of smaller-sized mesopelagic fishes due to geographic and/or bathymetric distribution range shifts, and the size-dependent effects of warming.
    Type: Article , NonPeerReviewed
    Format: text
    Format: archive
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    OceanRep: Article in a Scientific Journal - without review
  • 5
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    Palaeontological evidence for community-level decrease in mesopelagic fish size during Pleistocene climate warming in the eastern Mediterranean (2023)
    Royal Society of London
    Details
    Publication Date: 2024-02-14
    Description: Abstract Mesopelagic fishes are an important element of marine food webs, a huge, still mostly untapped food resource, and great contributors to the biological carbon pump, whose future under climate change scenarios are unknown. The shrinking of commercial fishes within decades has been an alarming observation, but its causes remain contended. Here, we investigate the effect of warming climate on mesopelagic fish size in the eastern Mediterranean Sea during a glacial–interglacial–glacial transition of the Middle Pleistocene (marine isotope stages 20–18; 814–712 Kyr B.P.), which included a 4 °C increase of global seawater temperature. Our results based on fossil otoliths show that the median size of lanternfishes, one of the most abundant groups of mesopelagic fishes in fossil and modern assemblages, declined by ~35% with climate warming at the community level. However, individual mesopelagic species showed different and often opposing trends in size across the studied time interval, suggesting that climate warming in the interglacial resulted in an ecological shift toward increased relative abundance of smaller-sized mesopelagic fishes due to geographic and/or bathymetric distribution range shifts, and the size-dependent effects of warming.
    Type: Article , PeerReviewed
    Format: archive
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 6
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    DECOMPOSING LITHIFICATION BIAS: PRESERVATION OF LOCAL DIVERSITY STRUCTURE IN RECENTLY CEMENTED STORM-BEACH CARBONATE SANDS, SAN SALVADOR ISLAND, BAHAMAS (2012)
    Society for Sedimentary Geology (SEPM)
    Details
    Publication Date: 2012-03-01
    Description: Lithification with related diagenetic phenomena is an important step in a complex transition from living communities to fossil assemblages and a major taphonomic filter distorting the record of past biodiversity. Apart from direct diagenetic culling of fossils, cementation of fossiliferous deposits induces changes in sampling procedures used to extract paleontological data. This study explores the effects of this methodological shift on recorded fine-scale paleoecological patterns by using subfossil mollusk assemblages occurring in the unlithified and recently cemented storm-beach carbonate sands at Sand Dollar Beach, San Salvador Island, Bahamas, which experienced limited diagenetic alteration. Results show that consistent differences in relative abundance patterns of particular taxa can be observed between unlithified and lithified samples due to collection failure. Magnitude of this distortion is controlled in a large part by a degree of transport-related size sorting, with well-sorted assemblages dominated by small gastropods being more affected. This bias, however, is of limited importance and can be mitigated by selective exclusion of the smallest size classes (
    Print ISSN: 0883-1351
    Electronic ISSN: 0883-1351
    Topics: Geosciences
    Published by Society for Sedimentary Geology (SEPM)
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    PAPER CURRENT
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