Invasion science addresses interconnected ecological, economic, and social challenges posed by the introduction of nonnative species. Therefore, invasion scientists have to consider and reconcile interdisciplinary needs while addressing the potential implications of their findings. Navigating diverse disciplines, including environmental sciences, ecology, economics, and the humanities, invasion scientists seek to arrive at informed decisions on invasion risk, impact, and management. Individual biases, uncertainties, and systemic pressures influence the ability to maintain objectivity and resist pressures that might otherwise distort their findings or applications. In the present commentary, we examine conceptual and ethical dilemmas within the field of invasion science, particularly reputational and the risks of the discipline perpetuating its own relevance by framing invasions as insurmountable challenges. In the discussion, we highlight how incentive structures, biased assessments and framing, and conflicts of interest may compromise the discipline's integrity. We also explore questions surrounding human responsibility to animal welfare and highlight ethical conundrums in the management of invasive species.

• Keywords
• environmental ethics, ethical dilemmas, human responsibility, philosophical challenges, sustainability science,
• Publication type
• Journal Article MeSH

UNLABELLED: Community science (also often referred to as citizen science) provides a unique opportunity to address questions beyond the scope of other research methods whilst simultaneously engaging communities in the scientific process. This leads to broad educational benefits, empowers people, and can increase public awareness of societally relevant issues such as the biodiversity crisis. As such, community science has become a favourable framework for researching alien species where data on the presence, absence, abundance, phenology, and impact of species is important in informing management decisions. However, uncertainties arising at different stages can limit the interpretation of data and lead to projects failing to achieve their intended outcomes. Focusing on alien species centered community science projects, we identified key research questions and the relevant uncertainties that arise during the process of developing the study design, for example, when collecting the data and during the statistical analyses. Additionally, we assessed uncertainties from a linguistic perspective, and how the communication stages among project coordinators, participants and other stakeholders can alter the way in which information may be interpreted. We discuss existing methods for reducing uncertainty and suggest further solutions to improve data reliability. Further, we make suggestions to reduce the uncertainties that emerge at each project step and provide guidance and recommendations that can be readily applied in practice. Reducing uncertainties is essential and necessary to strengthen the scientific and community outcomes of community science, which is of particular importance to ensure the success of projects aimed at detecting novel alien species and monitoring their dynamics across space and time. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10530-022-02858-8.

• Keywords
• Biodiversity monitoring, Citizen science, Data quality, Epistemic uncertainty, Linguistic uncertainty, Non-native species,
• Publication type
• Journal Article MeSH
• Review MeSH