Invasive Species Management and Impact Assessment

Invasive species management encompasses the prevention, early detection, rapid response, containment, control and, where feasible, eradication of non-native organisms that threaten biodiversity, ecosystem services and human well-being. Effective management requires rigorous risk assessment frameworks to prioritise species and sites, combining field surveys, remote sensing and predictive modelling to inform interventions. Mechanical removal, trapping, chemical treatments and biocontrol are applied singly or in integrated packages, with strategies tailored to life‐history traits, dispersal capacity and habitat preferences of the target organism. Impact assessment evaluates the ecological, economic and social consequences of invasions, drawing on metrics such as changes in native species abundance, alteration of ecosystem processes and cost–benefit analyses of management actions. Challenges include compensatory immigration, recolonisation from adjacent populations, climate-driven range shifts and stakeholder acceptance. Advances in spatially explicit modelling and adaptive management are refining our ability to anticipate invasion dynamics, allocate resources efficiently and monitor outcomes on local to continental scales.

Research from Nature Portfolio

Recent studies have applied multi‐season occupancy models to free-ranging American mink, revealing that micro-habitat features such as shrub and rock cover, alongside medium-sized river density, strongly influence raft use, colonisation and abandonment rates. These findings guide the optimisation of trap placement and landscape management to enhance removal efficacy. Complementary work has employed maximum entropy niche modelling to forecast the potential distribution of nutria under current and future climate scenarios. Projections indicate a northward expansion of suitable habitat, with area estimates rising from approximately 4 000 km² today to over 60 000 km² by 2070, informing regional prioritisation and the design of targeted eradication corridors.

Invasive Species Management and Impact Assessment publication trend

The graph below shows the total number of articles in invasive species management and impact assessment across all publications each year (not limited to Nature Index journals).

Technical terms

Invasive Alien Species (IAS): Non-native organisms that establish, spread and cause harm to biodiversity, ecosystem services or human health.

Occupancy Model: Statistical framework estimating species presence, colonisation and local extinction probabilities from detection–non-detection data.

Niche Modelling: Predictive approach correlating species occurrences with environmental variables to map potential distribution under current or future climates.

Eradication vs Control: Eradication aims for complete, permanent removal of a species over a defined area; control seeks to reduce population density to tolerable levels.

References

1. Occupancy dynamics of free ranging American mink (Neogale vison) in Greece. Scientific Reports (2024).
2. The potential current distribution of the coypu (Myocastor coypus) in Europe and climate change induced shifts in the near future. NeoBiota (2020).
3. Landscape Drivers Influence the Efficiency of Management of Aquatic Invasive Alien Rodents in Western France. Sustainability (2024).
4. The large‐scale removal of mammalian invasive alien species in Northern Europe. Pest Management Science (2016).
5. Distribution and Management of Nutria (Myocastor coypus) Populations in South Korea. Sustainability (2019).
6. The compensatory potential of increased immigration following intensive American mink population control is diluted by male-biased dispersal. Biological Invasions (2016).