Journal: Biological Invasions

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Springer

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1387-3547
1573-1464

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Publications 1 - 10 of 27
  • Alien plants as mediators of ecosystem services and disservices in urban systems: a global review
    Item type: Journal Article
    Potgieter, Luke J.; Gaertner, Mirijam; Kueffer, Christoph; et al. (2017)
    Biological Invasions
  • Allelopathic effects of three plant invaders on germination of native species: a field study
    Item type: Journal Article
    Del Fabbro, Corina; Güsewell, Sabine; Prati, Daniel (2014)
    Biological Invasions
    The ability of some invasive plant species to produce biochemical compounds toxic to native species, called allelopathy, is thought to be one of the reasons for their success when introduced to a novel range, an idea known as the Novel Weapons Hypothesis. However, support for this hypothesis mainly comes from bioassays and experiments conducted under controlled environments, whereas field evidence is rare. In a field experiment, we investigated whether three plant species invasive in Europe, Solidago gigantea, Impatiens glandulifera and Erigeron annuus, inhibit the germination of native species through allelopathy more than an adjacent native plant community. At three sites for each invasive species, we compared the germination of native species that were sown on invaded and non-invaded plots. Half of these plots were amended with activated carbon to reduce the influence of potential allelopathic compounds. The germination of sown seeds and of seeds from the seedbank was monitored over a period of 9 weeks. Activated carbon generally enhanced seed germination. This effect was equally pronounced in invaded and adjacent non-invaded plots, indicating that invasive species do not suppress germination more than a native plant community. In addition, more seeds germinated from the seedbank on invaded than on non-invaded soil, probably due to previous suppression of germination by the invasive species. Our field study does not provide evidence for the Novel Weapons Hypothesis with respect to the germination success of natives. Instead, our results suggest that if invasive species release allelopathic compounds that suppress germination, they do so to a similar degree as the native plant community.
  • Mixed fitness effects of grass endophytes modulate impact of enemy release and rapid evolution in an invasive grass
    Item type: Journal Article
    Vandegrift, Roo; Blaser, Wilma; Campos-Cerda, Felipe; et al. (2015)
    Biological Invasions
  • Running off the road: roadside non-native plants invading mountain vegetation
    Item type: Journal Article
    McDougall, Keith L.; Lembrechts, Jonas J.; Rew, Lisa J.; et al. (2018)
    Biological Invasions
  • Variation in herbivore damage to invasive and native woody plant species in open forest vegetation on Mahe, Seychelles
    Item type: Journal Article
    Dietz, Hansjörg; Wirth, Lea R.; Buschmann, Holger (2004)
    Biological Invasions
  • Phosphorus enrichment enabled Amorpha fruticosa to invade on the foodplain of the Tagliamento River, Italy
    Item type: Journal Article
    Edwards, Peter; Hügli, Christian; Venterink, Harry Olde; et al. (2024)
    Biological Invasions
    The North American nitrogen-fixing shrub Amorpha fruticosa (false indigo) is an aggressive invader of riverine habitats in Europe, though the reasons for its success are poorly understood. We hypothesized that its spread on the floodplain of the Tagliamento River in Northern Italy was enabled by anthropogenic phosphorus (P) enrichment. To investigate this hypothesis, we surveyed seed production at different locations along the river and performed a growth chamber experiment in which seedlings of three common floodplain shrubs (A. fruticosa, Salix eleagnos and Buddleja davidii) were grown at 10 levels of both nitrogen (N) and P. As a bioassay of N and P availabilities, we analyzed concentrations of these nutrients in Salix eleagnos leaves collected at different positions along the river. P availability was significantly higher in the lower reaches of the river, where A. fruticosa was abundant, than at its upstream limit. Numbers of A. fruticosa seeds per inflorescence increased strongly in a downstream direction and there was a trend for higher seed weight. In the growth experiment, A. fruticosa was more P-demanding than the other species, producing little biomass and no rhizobial nodules at low P. It also exhibited greater plasticity than the other species in both root mass fraction and ratio of longest root length to root mass. We conclude that anthropogenic P enrichment enabled A. fruticosa to invade what was originally a very oligotrophic environment. This N-2-fixing shrub exhibits greater phenotypic plasticity than native S. eleagnos, giving it a competitive advantage under conditions of high P availability.
  • Invasion syndromes: a systematic approach for predicting biological invasions and facilitating effective management
    Item type: Journal Article
    Novoa, Ana; Richardson, David M.; Pyšek, Petr; et al. (2020)
    Biological Invasions
  • Changes in native and introduced host-parasite networks
    Item type: Journal Article
    Llaberia-Robledillo, Mar; Balbuena, Juan A.; Sarabeev, Volodimir; et al. (2022)
    Biological Invasions
    Introduced species can alter the dynamics and structure of a native community. Network analysis provides a tool to study host-parasite interactions that can help to predict the possible impact of biological invasions or other disturbances. In this study, we used weighted bipartite networks to assess differences in the interaction patterns between hosts and helminth parasites of native (Sea of Japan) and invasive (Black Sea and Sea of Azov) populations of Planiliza haematocheilus (Teleostei: Mugilidae). We employed three quantitative network descriptors, connectance, weighted nestedness and modularity, to gain insight into the structure of the host-parasite networks in the native and invaded areas. The role of parasite species in the networks was assessed using the betweenness centrality index. We analyzed networks encompassing the whole helminth community and subsets of species classified by their transmission strategy. The analyses were downscaled to host individual-level to consider intraspecific variation in parasite communities. We found significant differences between networks in the native and invaded areas. The latter presented a higher value of nestedness, which may indicate a co-occurrence between parasite species with many connections in the network and species with fewer interactions within the same individual-host. In addition, modularity was higher in the native area's networks than those of the invaded area, with subgroups of host individuals that interact more frequently with certain parasite species than with others. Only the networks composed of actively transmitted parasites and ectoparasites did not show significant differences in modularity between the Sea of Azov and the Sea of Japan, which could be due to the introduction of a part of the native community into the invaded environment, with a lower diversity and abundance of species. We show that network analysis provides a valuable tool to illuminate the changes that occur in host-parasite interactions when an invasive species and its parasite community are introduced into a new area.
  • The role of bioclimatic origin, residence time and habitat context in shaping non-native plant distributions along an altitudinal gradient
    Item type: Conference Paper
    Haider, Sylvia; Alexander, Jake; Dietz, Hansjörg; et al. (2010)
    Biological Invasions
  • Using prior information to build probabilistic invasive species risk assessments
    Item type: Journal Article
    Diez, Jeffrey M.; Hulme, Philip E.; Duncan, Richard P. (2012)
    Biological Invasions
Publications 1 - 10 of 27