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  • 2020-2024  (47)
  • 2015-2019  (84)
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  • 1
    Online Resource
    Online Resource
    The role of geographic origin and life history stages in invasion ecology : a comparative assessment of Northern European, Ponto-Caspian and North American species (2020)
    Kiel : Universitätsbibliothek Kiel
    Details Availability
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (iv, 157 Seiten) , Illustrationen
    URL: https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2021-00004-9
    URL: https://d-nb.info/1225349230/34
    URL: https://macau.uni-kiel.de/receive/macau_mods_00000946
    URN: urn:nbn:de:gbv:8:3-2021-00004-9
    DDC: 597
    Language: English
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  • 2
    Online Resource
    Online Resource
    Are Ponto-Caspian species inherently predisposed to cross salinity barriers : Experimental selection of the gammarid Pontogammarus maeoticus (Sovinskij, 1894) (2018)
    Kiel
    Details Availability
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (90 Blatt = 1,7 MB) , Diagramme, Karte
    URL: http://oceanrep.geomar.de/41711/
    Language: English
    Note: Zusammenfassung in deutscher und englischer Sprache
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  • 3
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    Non-native species spread in a complex network: the interaction of global transport and local population dynamics determines invasion success (2019)
    ROYAL SOC
    In:  EPIC3Proceedings of the Royal Society B-Biological Sciences, ROYAL SOC, 286(1901), ISSN: 0962-8452
    Details
    Publication Date: 2019-06-18
    Description: The number of released individuals, which is a component of propagule pressure, is considered to be a major driver for the establishment success of non-native species. However, propagule pressure is often assumed to result from single or few release events, which does not necessarily apply to the frequent releases of invertebrates or other taxa through global transport. For instance, the high intensity of global shipping may result in frequent releases of large numbers of individuals, and the complexity of shipping dynamics impedes predictions of invasion dynamics. Here, we present a mathematical model for the spread of planktonic organisms by global shipping, using the history of movements by 33 566 ships among 1477 ports to simulate population dynamics for the comb jelly Mnemiopsis leidyi as a case study. The degree of propagule pressure at one site resulted from the coincident arrival of individuals from other sites with native or non-native populations. Key to sequential spread in European waters was a readily available source of propagules and a suitable recipient environment. These propagules were derived from previously introduced ‘bridgehead’ populations supplemented with those from native sources. Invasion success is therefore determined by the complex interaction of global shipping and local population dynamics. The general findings probably hold true for the spread of species in other complex systems, such as insects or plant seeds exchanged via commercial trade or transport.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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    PAPER (OA)
  • 4
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    Non-indigenous species in the North and Baltic Seas and the Great Lakes-St. Lawrence River region (2016)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-09-17
    Description: List of non-indigenous species (NIS) established in the Great Lakes-St. Lawrence River region and the North and Baltic Seas region, their geographic origin, and taxonomic assignment. Asterisks mark the NIS that occur in both the North and Baltic Seas and the Great Lakes-St. Lawrence River regions. GL, SL, NW, NE, SW and SE denote the Great Lakes, St. Lawrence River, north-west, north-east, south-west, and south-east, respectively. Eurasia represents inland freshwaters except Yangtze River, Indo-Pacific represents Indian Ocean and the archipelago of Indonesia, Malaysia, and Pilipinas, North America (N America) represents inland freshwaters except the Laurentian Great Lakes, St. Lawrence and Mississippi Rivers, while Australia, New Zealand, Africa and South America (S America) cover all inland freshwaters in these areas.
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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    PAPER (OA)
  • 5
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    Artificial selection experiments with the Ponto-Caspian amphipod Pontogammarus maeoticus (2018)
    PANGAEA
    In:  Supplement to: Pauli, Nora-Charlotte; Paiva, Filipa; Briski, Elizabeta (2018): Are Ponto-Caspian species able to cross salinity barriers? A case study of the gammarid Pontogammarus maeoticus. Ecology and Evolution, 8(19), 9817-9826, https://doi.org/10.1002/ece3.4461
    Details
    Publication Date: 2023-03-16
    Description: Recently, Ponto-Caspian species (i.e. area of Azov, Black and Caspian Seas) have invaded brackish and freshwater habitats of the North and Baltic Seas and the Laurentian Great Lakes in much higher numbers than expected based on shipping frequency and environmental conditions among these regions. Therefore, it has been hypothesized that Ponto-Caspian species may have inherent advantages over other species in colonizing new habitats, or that they are of freshwater origin. To test these hypotheses, we conducted artificial selection experiment on Ponto-Caspian amphipod Pontogammarus maeoticus collected from 10 PSU to evaluate adaptation capacity of this species to different salinities. Our results indicated that selection to lower salinity than that of population's ambient salinity is possible. Though, generation time in lower salinity conditions took slightly longer. On the contrary, selection to higher salinity was unsuccessful. Taking into account the results from this and previous studies and the geological history of the Ponto-Caspian region, we suggest that majority of the Ponto-Caspian relict fauna might be of freshwater origin and lack necessary genetic background for adaptation to fully marine conditions. Further selection studies using more species and populations, as well as molecular techniques, should be conducted to confirm this hypothesis on a broader scale. Consequently, if Ponto-Caspian relict species are of freshwater origin, the perception that they are better colonizers than species from other regions might be inclined by the fact that areas with biggest introduction frequency of nonindigenous species (i.e., shipping ports) are environmentally variable habitats which often include freshwater conditions.
    Keywords: AWI_BioOce; Biological Oceanography @ AWI
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 6
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    Artificial selection experiments with adult Pontogammarus maeoticus (2018)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: AWI_BioOce; Biological Oceanography @ AWI; Day of experiment; Experimental treatment; Pontogammarus maeoticus; Proportion of survival; Replicate; Salinity; Survival
    Type: Dataset
    Format: text/tab-separated-values, 9390 data points
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    DATA PANGAEA
  • 7
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    Artificial selection experiments with juvenile Pontogammarus maeoticus (2018)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: AWI_BioOce; Batch; Biological Oceanography @ AWI; Experimental treatment; Experiment week; Pontogammarus maeoticus; Pontogammarus maeoticus, cephalon length; Replicate; Salinity; Survival
    Type: Dataset
    Format: text/tab-separated-values, 18478 data points
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    DATA PANGAEA
  • 8
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    Data for Euryhalinity of Ponto-Caspian invaders in their native and introduced regions (2018)
    PANGAEA
    In:  Supplement to: Pauli, Nora-Charlotte; Briski, Elizabeta (2018): Euryhalinity of Ponto-Caspian invaders in their native and introduced regions. Aquatic Invasions, 13(4), 439-447, https://doi.org/10.3391/ai.2018.13.4.02
    Details
    Publication Date: 2023-01-13
    Description: In the past decades, Ponto-Caspian species established in freshwater and brackish habitats of the North and Baltic Sea and Great Lakes-St. Lawrence River region in much higher numbers than expected based on introduction effort (i.e. shipping frequency) and environmental conditions between these regions. Several studies suggested that Ponto-Caspian taxa are euryhaline and might be able to adapt rapidly to changing salinity conditions, and therefore might be more successful colonizers than species from other regions. To determine the realized niche in the native and introduced habitats of Ponto-Caspian invaders and to assess whether they expanded their salinity tolerance during the invasion process, we conducted a literature search to assess the salinity ranges of 55 Ponto-Caspian species in their native and introduced region. Our results confirmed that the majority of those species occupied a wide range of salinity in their native and introduced habitats. Approximately 50 % of the species were reported from both freshwater and brackish habitats (0-18 PSU) in their native region, occupying a salinity range of at least 10 PSU difference. In general, the number of species tended to decline as salinity increased in both native and introduced habitats. More than 90 % of the Ponto-Caspian invaders occupied freshwater (0-0.5 PSU) habitats, while 18 % did not occur above 18 PSU. Due to the limitation of our dataset, we were not able to confirm shifts in salinity tolerance during the invasion process. However, as our results suggest that the majority of the Ponto-Caspian invaders occupy freshwater and brackish habitats in their native region, the recent numerous invasions of freshwater and brackish areas by those species should not be a surprise. Therefore, managers and policy makers should take into account that the majority of Ponto-Caspian invaders originate from fresh water or low salinities and develop new regulations to prevent future invasions from the Ponto-Caspian region, as well as from areas highly invaded by Ponto-Caspian taxa such as Northern Europe.
    Type: Dataset
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 54.4 kBytes
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    DATA PANGAEA
  • 9
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    Zooplankton communities in ballast water (2019)
    PANGAEA
    In:  Supplement to: Lin, Yaping; Zhan, Aibin; Hernandez, Marco R; Paolucci, Esteban; MacIsaac, Hugh J; Briski, Elizabeta (2020): Can chlorination of ballast water reduce biological invasions? Journal of Applied Ecology, 57(2), 331-343, https://doi.org/10.1111/1365-2664.13528
    Details
    Publication Date: 2023-01-13
    Description: 1. Ballast water has been identified as a leading vector for introduction of non-indigenous species (NIS). Recently, the International Maritime Organization (IMO) implemented management standards – D-2 – where all large, commercial ships trading internationally are required to adopt an approved treatment system using technologies such as ultraviolet radiation or chlorination. However, current management regulations are based only on the total abundance of viable taxa transported (i.e., total propagule pressure), largely ignoring species richness (i.e., colonization pressure). 2. To determine the efficacy of chlorine treatment in reducing invasion risks and changes in transported biological communities inside ballast tanks, we used DNA metabarcoding-based approaches to estimate colonization pressure (here, the number of species/Operational Taxonomic Units (OTUs) introduced) and relative propagule pressure (relative abundance of each species/OTU) of zooplankton communities in control and chlorine treated tanks during four transatlantic voyages. 3. Our study demonstrated that transport itself did not significantly reduce colonization pressure of zooplankton species, nor did chlorine treatment. Chlorine treatment altered community structure by reducing relative propagule pressure of some taxa such as Mollusca and Rotifera, while increasing relative propagule pressure of some Oligohymenophorea and Copepoda species. 4. Synthesis and applications. Chlorine treatment may not reduce invasion risks as much as previously thought. Reduction in total propagule pressure does not mean reduction in abundance of all species equally. While some taxa might experience drastically reduced abundance, others might not change at all or increase due to hatching from dormant stages initiated by chlorine exposure. Therefore, management strategies should consider changes in total propagule pressure and colonization pressure when forecasting risk of new invasions. We therefore recommend adopting new approaches, such as DNA metabarcoding-based methods, to assess the whole biodiversity discharged from ballast water. As species responses to chlorine treatment are variable and affected by concentration, we also recommend a combination of different technologies to reduce introduction risks of aquatic organisms.
    Type: Dataset
    Format: application/zip, 233.9 MBytes
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    DATA PANGAEA
  • 10
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    Non-indigenous species in the North and Baltic Seas and the Great Lakes-St. Lawrence River region (2016)
    PANGAEA
    In:  Supplement to: Casties, Isabel; Seebens, Hanno; Briski, Elizabeta (2016): Importance of geographic origin for invasion success: A case study of the North and Baltic Seas versus the Great Lakes-St. Lawrence River region. Ecology and Evolution, 6(22), 8318-8329, https://doi.org/10.1002/ece3.2528
    Details
    Publication Date: 2023-01-13
    Description: List of non-indigenous species (NIS) established in the Great Lakes-St. Lawrence River region and the North and Baltic Seas region, their geographic origin, and taxonomic assignment. Asterisks mark the NIS that occur in both the North and Baltic Seas and the Great Lakes-St. Lawrence River regions. GL, SL, NW, NE, SW and SE denote the Great Lakes, St. Lawrence River, north-west, north-east, south-west, and south-east, respectively. Eurasia represents inland freshwaters except Yangtze River, Indo-Pacific represents Indian Ocean and the archipelago of Indonesia, Malaysia, and Pilipinas, North America (N America) represents inland freshwaters except the Laurentian Great Lakes, St. Lawrence and Mississippi Rivers, while Australia, New Zealand, Africa and South America (S America) cover all inland freshwaters in these areas.
    Type: Dataset
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 56.2 kBytes
    Location Call Number Limitation Availability
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    DATA PANGAEA
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