• Advancing impact prediction and hypothesis testing in invasion ecology using a comparative functional response approach 

      Dick, J.T.A.; Alexander, M.E.; Jeschke, J.M.; Ricciardi, A.; MacIsaac, H.J.; Robinson, T.B.; Kumschick, S.; Weyl, O.L.F.; Dunn, A.M.; Hatcher, M.J.; Paterson, R.A.; Farnsworth, K.D.; Richardson, D.M. (Springer, 2014-04)
      Invasion ecology urgently requires predictive methodologies that can forecast the ecological impacts of existing, emerging and potential invasive species. We argue that many ecologically damaging invaders are characterised ...
    • Application of the Environmental Impact Classification for Alien Taxa (EICAT) to a global assessment of alien bird impacts 

      Evans, T.; Kumschick, S.; Blackburn, T.M. (John Wiley & Sons Ltd, 2016)
      Aim To apply the recently published EICAT protocol to an assessment of the magnitude of environmental impacts of alien bird species established worldwide. Location Global. Methods A review of published literature and ...
    • Comparing determinants of alien bird impacts across two continents: implications for risk assessment and management 

      Evans, T.; Kumschick, S.; Dyer, E.; Blackburn, T. (John Wiley & Sons Ltd, 2014)
      Invasive alien species can have serious adverse impacts on both the environment and the economy. Being able to predict the impacts of an alien species could assist in preventing or reducing these impacts. This study aimed ...
    • Comparing impacts of alien plants and animals in Europe using a standard scoring system 

      Kumschick, S.; Bacher, S.; Evans, T.; Markova, Z.; Pergl, J.; Pysek, P.; Vaes-Petignat, S.; van der Veer, G.; Villa, M.; Nentwig, W. (British Ecological Society, 2015-06)
      1. Alien species can change the recipient environment in various ways, and some of them cause considerable damage. Understanding such impacts is crucial to direct management actions. This study addresses the following ...
    • Crossing frontiers in tackling pathways of biological invasions 

      Essl, F.; Bacher, S.; Blackburn, T.M.; Booy, O.; Brundu, G.; Brunel, S.; Cardoso, A.C.; Eschen, R.; Gallardo, B.; Galil, B.; Garcia-Berthou, E.; Genovesi, P.; Groom, Q.; Harrower, C.; Hulme, P.E.; Katsanevakis, S.; Kenis, M.; Kuhn, I.; Kumschick, S.; Martinou, A.F.; Nentwig, W.; O'Flynn, C.; Pagad, S.; Pergl, J.; Pysek, P.; Rabitsch, W.; Richardson, D.M.; Roques, A.; Roy, H.E.; Scalera, R.; Schindler, S.; Seebens, H.; Vanderhoeven, S.; Vila, M.; Wilson, J.R.U.; Zenetos, A.; Jeschke, J.M. (Oxford University Press, 2015)
      Substantial progress has been made in understanding how pathways underlie and mediate biological invasions. However, key features of their role in invasions remain poorly understood, available knowledge is widely scattered, ...
    • Defining the impact of non-native species 

      Jeschke, J.M.; Bacher, S.; Blackburn, T.M.; Dick, J.T.A.; Essl, F.; Evans, T.; Gaertner, M.; Hulme, P.E.; Kühn, I.; Mrugala, A.; Pergl, J.; Pyšek, P.; Rabitsch, W.; Ricciardi, A.; Richardson, D.M.; Sendek, A.; Vilá, M.; Winter, M.; Kumschick, S. (Wiley Periodicals, Inc. on behalf of the Society for Conservation Biology, 2014)
      Non-native species cause changes in the ecosystems to which they are introduced. These changes, or some of them, are usually termed impacts; they can be manifold and potentially damaging to ecosystems and biodiversity. ...
    • Determinants of data deficiency in the impacts of alien bird species. 

      Evans, T.; Pigot, A.; Kumschick, S.; Sekercioglu, C.H.; Blackburn, T.M. (John Wiley & Sons Ltd, 2018)
      To identify the factors that influence the availability of data on the negative impacts of alien bird species, in order to understand why more than 70% are currently classified as Data Deficient (DD) by the Environmental ...
    • Does origin determine environmental impacts? Not for bamboos 

      Canavan, S.; Kumschick, S.; Le Roux, J.J.; Richardson, D.M.; Wilson, J.R.U. (New Phytologist Trust, 2019)
      Societal Impact Statement: Non‐native species can cause considerable negative impacts in natural ecosystems. Such impacts often are directly due to the fact that these species occur in habitats where they did not evolve. ...
    • Ecological impacts of alien species: Quantification, scope, caveats, and recommendations 

      Kumschick, S.; Gaertner, M.; Vila, M.; Essl, F.; Jeschke, J.M.; Pysek, P.; Ricciardi, A.; Bacher, S.; Blackburn, T.M.; Dick, J.T.A.; Evans, T.; Hulme, P.E.; Kuhn, I.; Mrugala, A.; Pergl, J.; Rabitsch, W.; Richardson, D.M.; Sendek, A.; Winter, M. (Oxford University Press, 2015)
      Despite intensive research during the past decade on the effects of alien species, invasion science still lacks the capacity to accurately predict the impacts of those species and, therefore, to provide timely advice to ...
    • Emerging infectious diseases and biological invasions: a call for a One Health collaboration in science and management 

      Ogden, N.H.; Wilson, J.R.U.; Richardson, D.M.; Hui, C.; Davies, S.J.; Kumschick, S.; Le Roux, J.J.; Measey, J.; Saul, W.-C.; Pulliam, J.R.C. (The Royal Society Publishing, 2019)
      The study and management of emerging infectious diseases (EIDs) and of biological invasions both address the ecology of human-associated biological phenomena in a rapidly changing world. However, the two fields work mostly ...
    • A four-component classification of uncertainties in biological invasions: implications for management 

      Latombe, G.; Canavan, S.; Hirsch, H.; Hui, C.; Kumschick, S.; Nsikani, M.N.; Potgieter, L.J.; Robinson, T.B.; Saul, W.-C.; Turner, S.C.; Wilson, J.R.U.; Yannelli, F.A.; Richardson, D.M. (John Wiley & Sons, Inc, 2019)
      Although uncertainty is an integral part of any science, it raises doubts in public perception about scientific evidence, is exploited by denialists, and therefore potentially hinders the implementation of management ...
    • Framework and guidelines for implementing the proposed IUCN Environmental Impact Classification for Alien Taxa (EICAT) 

      Hawkins, C.L.; Bacher, S.; Essl, F.; Hulme, P.E.; Jeschke, J.M.; Kuhn, I.; Kumschick, S.; Nentwig, W.; Pergl, J.; Pysek, P.; Rabitsch, W.; Richardson, D.M.; Vila, M.; Wilson, J.R.U.; Genovesi, P.; Blackburn, T.M. (John Wiley & Sons Ltd, 2015)
      Recently, Blackburn et al. (2014) developed a simple, objective and transparent method for classifying alien taxa in terms of the magnitude of their detrimental environmental impacts in recipient areas. Here, we present a ...
    • A framework for engaging stakeholders on the management of alien species 

      Novoa, A.; Shackleton, R.; Canavan, S.; Cybele, C.; Davies, S.J.; Dehnen-Schmutz, K.; Fried, J.; Gaertner, M.; Geerts, S.; Griffiths, C.L.; Kaplan, H.; Kumschick, S.; Le Maitre, D.C.; Measey, G.J.; Nunes, A.L.; Richardson, D.M.; Robinson, T.B.; Touza, J.; Wilson, J.R.U. (Elsevier Ltd., 2018)
      Alien species can have major ecological and socioeconomic impacts in their novel ranges and so effective management actions are needed. However, management can be contentious and create conflicts, especially when stakeholders ...
    • Gastropods alien to South Africa cause severe environmental harm in their global alien ranges across habitats 

      Kesner, D.; Kumschick, S. (John Wiley & Sons Ltd, 2018)
      Alien gastropods have caused extensive harm to biodiversity and socioeconomic systems like agriculture and horticulture worldwide. For conservation and management purposes, information on impacts needs to be easily ...
    • The generic impact scoring system (GISS): a standardized tool to quantify the impacts of alien species. 

      Nentwig, W.; Bacher, S.; Pysek, P.; Vila, M.; Kumschick, S. (Springer, 2016)
      Alien species can exert negative environmental and socio-economic impacts. Therefore, administrations from different sectors are trying to prevent further introductions, stop the spread of established species, and apply ...
    • A global assessment of alien amphibian impacts in a formal framework 

      Measey, G.J.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.; Davies, S.J.; Thorp, C.J.; Rebelo, A.D.; Kumschick, S. (John Wiley & Sons Ltd, 2016)
      Aims The environmental and socio-economic impacts of alien species need to be quantified in a way that makes impacts comparable. This allows managers to prioritize their control or removal based on impact scores that can ...
    • Global environmental and socio-economic impacts of selected alien grasses as a basis for ranking threats to South Africa 

      Nkuna, K.V.; Visser, V.; Wilson, J.R.U.; Kumschick, S. (Creative Commons CC-BY 4.0, 2018)
      Decisions to allocate management resources should be underpinned by estimates of the impacts of biological invasions that are comparable across species and locations. For the same reason, it is important to assess what ...
    • Grasses as invasive plants in South Africa revisited: patterns, pathways and management 

      Visser, V.; Wilson, J.R.U.; Canavan, K.; Canavan, S.; Fisher, L.; Le Maitre, D.; Nanni, I.; Mashau, C.; O'Connor, T.G.; Ivey, P.; Kumschick, S.; Richardson, D.M. (AOSIS, 2017)
      Background: In many countries around the world, the most damaging invasive plant species are grasses. However, the status of grass invasions in South Africa has not been documented recently. Objectives: To update Sue ...
    • How repeatable is the Environmental Impact Classification of Alien Taxa (EICAT)? Comparing independent global impact assessments of amphibians 

      Kumschick, S.; Measey, G.J.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.M.; Davies, S.J.; Thorp, C.J.; Rebelo, A.D.; Blackburn, T.M.; Kraus, F. (John Wiley & Sons Ltd., 2017)
      The magnitude of impacts some alien species cause to native environments makes them targets for regulation and management. However, which species to target is not always clear, and comparisons of a wide variety of impacts ...
    • Identifying the factors that determine the severity and type of alien bird impacts 

      Evans, T.; Kumschick, S.; Sekercioglu, C.H.; Blackburn, T.M. (John Wiley & Sons Ltd, 2018)
      Aim: To identify traits related to the severity and type of environmental impacts generated by alien bird species, in order to improve our ability to predict which species may have the most damaging impacts. Location: ...