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  • 1
    Schlagwort(e): Hochschulschrift
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource (47 Blatt = 1 MB) , Illustrationen, Diagramme
    Sprache: Englisch
    Anmerkung: Zusammenfassung in englischer portugiesischer Sprache
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    In: Basic and applied ecology, Jena : Urban & Fischer, 2000, (2009), 1618-0089
    In: year:2009
    Beschreibung / Inhaltsverzeichnis: The number of species in a local habitat depends on local and regional processes. One common approach to explore ecological saturation of local richness has been to plot local versus regional richness. We expand this approach by incorporating two dimensions of diversity taxonomic and functional and different successional ages of marine fouling communities. In four different biogeographic regions (Mediterranean Sea, NE Atlantic, Western Baltic Sea and North Sea) 60 experimental units made from artificial substratum were deployed for colonization. Local richness was assessed as the average number of species and functional groups (FG) per unit area while regional richness was estimated as the estimated (Jack 2) asymptote of the accumulation curves for species or FG in local panel communities. Our findings indicate that the nature of the relationship between local and regional diversity is sensitive to successional stage and the dimension of diversity considered. However, as a general pattern, for taxonomic and functional richness, the slope of the localregional relationship increased in the course of succession. We discuss how this pattern could have been produced by a combination of low number of recruiting species and incomplete competitive exclusion as is typical for early succession.
    Materialart: Online-Ressource
    Seiten: graph. Darst
    ISSN: 1618-0089
    Sprache: Englisch
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Schlagwort(e): Hochschulschrift
    Materialart: Online-Ressource
    Seiten: Online-Ressource
    DDC: 577.77
    Sprache: Englisch
    Anmerkung: Kiel, Univ., Diss., 2008
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Warsaw ;Berlin : De Gruyter Open
    Schlagwort(e): Ökosystem ; Invasion
    Beschreibung / Inhaltsverzeichnis: When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called ‘invasive species’ may establish, spread and ecologically alter the invaded community. Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss. In this book, more than 50 worldwide invasion scientists cover our current understanding of biological invasions, its impacts, patterns and mechanisms in both aquatic and terrestrial systems
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource (1 online resource)
    Ausgabe: Online-Ausg.
    ISBN: 9783110438666
    Sprache: Englisch
    Anmerkung: open access , Frontmatter -- -- Contents -- -- Preface -- -- List of Contributors -- -- General Introduction – Aquatic and Terrestrial Biological Invasions in the 21st Century -- -- Part I. Biogeography and Vectors of Biological Invasions -- -- Summary of Part I -- -- 1. Anthropogenic Vectors of Marine and Estuarine Invasions: an Overview Framework -- -- 2. The Biogeography of Avian Invasions: History, Accident and Market Trade -- -- 3. Vectors for Spread of Invasive Freshwater Vascular Plants with a North American Analysis -- -- 4. Invasions of Terrestrial Arthropods: Mechanisms, Pathways, and Dynamics -- -- 5. Vectors of Invasions in Freshwater Invertebrates and Fishes -- -- 6. Contribution of the Live Animal Trade to Biological Invasions -- -- Part II. Biological Invasions in Aquatic Ecosystems and in Host Parasite Systems -- -- Summary of Part II -- -- 7. Parasites and Genetics in Marine Invertebrate Introductions: Signatures of Diversity Declines across Systems -- -- 8. Invasive Crayfish and Their Invasive Diseases in Europe with the Focus on the Virulence Evolution of the Crayfish Plague -- -- 9. Host Dynamics and Ectoparasite Life Histories of Invasive And Non-Invasive Deer Ked Populations -- -- 10. The Pacific Oyster (Crassostrea gigas) Invasion in Scandinavian Coastal Waters: Impact on Local Ecosystem Services -- -- 11. Invasive Seaweeds: Impacts and Management Actions -- -- Part III. Management and Control of Biological Invasions -- -- Summary of Part III -- -- 12. Fighting Invasions in the Marine Realm, a Case Study with Caulerpa webbiana in the Azores -- -- 13. Reducing the Ecological Impact of Invasive Cane Toads -- -- 14. Pine Invasions in South America: Reducing Their Ecological Impacts Through Active Management -- -- 15 Implications of Ship Type on Delivery and Management of Ballast Water -- -- Part IV. Predictions and New Tools in Biological Invasions -- -- Summary of Part IV -- -- 16. Will Alien Plant Invaders Be Advantaged Under Future Climates? -- -- 17. Anticipating Invasions and Managing Impacts: A Review of Recent Spatiotemporal Modelling Approaches -- -- 18. Applications of DNA-based Methods for the Study of Biological Invasions -- -- 19. Assembly Rules and Novel Assemblages in Aquatic Ecosystems -- -- List of Figures -- -- List of Tables -- -- Index
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Warschau/Berlin : Walter de Gruyter GmbH
    Schlagwort(e): Ecological disturbances ; Biological invasions ; Introduced organisms ; World health ; Medical policy ; Public health ; Electronic books ; Aufsatzsammlung ; Ökosystem ; Umweltveränderung ; Invasion ; Biogeografie ; Ökosystemmanagement ; Ökosystem ; Invasion
    Beschreibung / Inhaltsverzeichnis: When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called 'invasive species' may establish, spread and ecologically alter the invaded community. Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss. In this book, more than 50 worldwide invasion scientists cover our current understanding of biological invasions, its impacts, patterns and mechanisms in both aquatic and terrestrial systems.
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource (473 Seiten)
    ISBN: 9783110438666
    DDC: 570
    RVK:
    Sprache: Englisch
    Anmerkung: Description based on publisher supplied metadata and other sources
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Lenz, Mark; Ahmed, Yasser; Canning-Clode, Joao; Díaz, Eliecer; Eichhorn, Selina; Fabritzek, Armin Georg; da Gama, Bernardo A P; Garcia, Marie; von Juterzenka, Karen; Kraufvelin, Patrik; Machura, Susanne; Oberschelp, Lisa; Paiva, Filipa; Penna, Miguel A; Ribeiro, Felipe V; Thiel, Martin; Wohlgemuth, Daniel; Zamani, Neviaty P; Wahl, Martin (2018): Heat challenges can enhance population tolerance to thermal stress in mussels: a potential mechanism by which ship transport can increase species invasiveness. Biological Invasions, 20(11), 3107-3122, https://doi.org/10.1007/s10530-018-1762-8
    Publikationsdatum: 2023-02-12
    Beschreibung: It is unclear whether transport by human vectors can increase the robustness of translocated populations and thereby enhance their invasiveness. To test this concept, we investigated the effect of heat stress on the tolerance of mussel populations towards a second stress event of the same kind. The heat challenges we mimicked can be faced by marine invertebrates that are transported through regions with high sea surface temperatures on ship hulls or in ballast water tanks. The study included 5 mussel species that were collected at sites in Brazil, Chile, Finland, Germany (Baltic Sea) and Portugal. In parallel laboratory experiments, monospecific groups of individuals were exposed to heat challenges that caused 60–83% mortality in the experimental groups within 15–28 days. The surviving individuals were exposed to a second stress event of the same kind, while their survival was then compared to the robustness of conspecifics that had not been exposed to elevated temperatures before. We observed that thermal tolerance was significantly enhanced by previous heat stress experience in case of Semimytilus algosus from Chile and in case of Mytilus edulis from Germany. Our results suggest that heat challenges, which marine invertebrates experience during transport, can enhance stress tolerance in founder populations of these species in their non-native range by potentially increasing the frequency of genetically adapted genotypes. This points at the necessity to learn more about selection acting on organisms during human-mediated transport—in the aquatic but also in the terrestrial environment.
    Schlagwort(e): Species; Status; Time in days; Treatment
    Materialart: Dataset
    Format: text/tab-separated-values, 792 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Publikationsdatum: 2024-01-26
    Beschreibung: This experimental study investigated the effects of ocean warming on food consumption rates in the sea urchins Paracentrotus lividus from Madeira Island to assess how the feeding pressure they exert may change under warmer ocean conditions. Over the course of25 days, 180 individuals of each species were exposed to temperatures between 22 °C and 31 °C in the laboratory. After 20 days, consumption rates were assessed in 48-h feeding trials. Data contain information about place and time of the animal collection as well as laboratory experiment and information about temperature regimes, and food consumption rates of Paracentrotus.
    Schlagwort(e): Arbacia lixula; EXP; Experiment; gonad index; invertebrate macro-grazer; Length; Madeira; ocean warming; Production; Quinta_do_Lorde; sea urchins; Species; Treatment: temperature
    Materialart: Dataset
    Format: text/tab-separated-values, 879 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Publikationsdatum: 2024-01-26
    Beschreibung: This experimental study investigated the effects of ocean warming on food consumption rates in the sea urchins Arbacia lixula from Madeira Island to assess how the feeding pressure they exert may change under warmer ocean conditions. Additionally, in A. lixula, the relationship between temperature and the gonad index was examined to estimate potential future reproductive output. Over the course of25 days, 180 individuals of each species were exposed to temperatures between 22 °C and 31 °C in the laboratory. After 20 days, consumption rates were assessed in 48-h feeding trials. Gonad indices of A. lixula were determined on the last day of the experiment. Data contain information about place and time of the animal collection as well as laboratory experiment and information about temperature regimes, food consumption rates of Arbacia and information about gonad indices and the sex of the animals.
    Schlagwort(e): Arbacia lixula; Diameter; EXP; Experiment; gonad index; Index; invertebrate macro-grazer; Madeira; ocean warming; Production; Quinta_do_Lorde; sea urchins; Sex; Species; Treatment: temperature
    Materialart: Dataset
    Format: text/tab-separated-values, 534 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Publikationsdatum: 2019-07-09
    Beschreibung: Predator-prey interactions in natural ecosystems generate complex food webs that have a simple universal body-size architecture where predators are systematically larger than their prey. Food-web theory shows that the highest predator-prey body-mass ratios found in natural food webs may be especially important because they create weak interactions with slow dynamics that stabilize communities against perturbations and maintain ecosystem functioning. Identifying these vital interactions in real communities typically requires arduous identification of interactions in complex food webs. Here, we overcome this obstacle by developing predator-trait models to predict average body-mass ratios based on a database comprising 290 food webs from freshwater, marine and terrestrial ecosystems across all continents. We analysed how species traits constrain body-size architecture by changing the slope of the predator-prey body-mass scaling. Across ecosystems, we found high body-mass ratios for predator groups with specific trait combinations including (1) small vertebrates and (2) large swimming or flying predators. Including the metabolic and movement types of predators increased the accuracy of predicting which species are engaged in high body-mass ratio interactions. We demonstrate that species traits explain striking patterns in the body-size architecture of natural food webs that underpin the stability and functioning of ecosystems, paving the way for community-level management of the most complex natural ecosystems.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Publikationsdatum: 2022-10-18
    Beschreibung: © The Author(s), 2015. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in GigaScience 4 (2015): 27, doi:10.1186/s13742-015-0066-5.
    Beschreibung: Ocean Sampling Day was initiated by the EU-funded Micro B3 (Marine Microbial Biodiversity, Bioinformatics, Biotechnology) project to obtain a snapshot of the marine microbial biodiversity and function of the world’s oceans. It is a simultaneous global mega-sequencing campaign aiming to generate the largest standardized microbial data set in a single day. This will be achievable only through the coordinated efforts of an Ocean Sampling Day Consortium, supportive partnerships and networks between sites. This commentary outlines the establishment, function and aims of the Consortium and describes our vision for a sustainable study of marine microbial communities and their embedded functional traits.
    Beschreibung: This work was supported by the Micro B3 project, which is funded from the European Union’s Seventh Framework Programme (FP7; Joint Call OCEAN.2011‐2: Marine microbial diversity – new insights into marine ecosystems functioning and its biotechnological potential) under the grant agreement no 287589.
    Schlagwort(e): Ocean sampling day ; OSD ; Biodiversity ; Genomics ; Health index ; Bacteria ; Microorganism ; Metagenomics ; Marine ; Micro B3 ; Standards
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
    Format: application/pdf
    Standort Signatur Einschränkungen Verfügbarkeit
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