Invasive Social Wasp Ecology and Management

Invasive social wasps, primarily species of Vespula and Polistes, have established in myriad regions worldwide, often with profound ecological and economic impacts. These eusocial insects exploit a broad spectrum of resources through flexible foraging behaviours and demonstrate remarkable physiological and behavioural plasticity, facilitating their establishment across diverse climates. Invasion ecology has elucidated key drivers of spread, including climate suitability, human‐mediated dispersal and habitat disturbance, while management efforts have evolved to integrate predictive modelling, targeted control and biological agents. Predictive tools such as species distribution models guide surveillance by identifying high‐risk zones, and emerging biocontrol strategies leverage native natural enemies to suppress populations. Integrated pest management approaches, combining nest detection, environmentally specific interventions and community engagement, are increasingly recognised as essential for mitigating the impacts of invasive wasps on biodiversity, agriculture and public health.

Research from Nature Portfolio

Recent studies have refined our understanding of foraging dynamics in invasive yellowjackets by linking individual sensory thresholds to colony‐level resource use. Experimental work in Patagonia demonstrated that two sympatric Vespula species exhibit distinct sucrose response thresholds, leading to differential exploitation of carbohydrate sources and reducing interspecific competition. Such sensory niche partitioning offers insight into mechanisms that facilitate coexistence and may inform bait design for more selective control strategies.

Invasive Social Wasp Ecology and Management publication trend

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

Technical terms

Sensory niche partitioning: the mechanism by which coexisting species reduce competition by specialising on different sensory cues or resource types.

Biotic resistance: the ability of resident species or communities to limit the establishment or spread of invasive organisms through interactions such as predation or competition.

Species distribution model: a predictive framework that correlates species occurrence with environmental variables to forecast potential geographic ranges.

Recruitment: the process by which informed foragers guide nestmates to food resources, enhancing collective foraging efficiency.

References

1. Sugar responsiveness could determine foraging patterns in yellowjackets. Scientific Reports (2023).
2. Nest visitors of Vespula wasps and their potential use for biological control in an invaded range. Journal of Pest Science (2023).
3. Biogeography and anthropogenic impact shape the success of invasive wasps on New Zealand's offshore islands. Diversity and Distributions (2020).
4. Spatio–Environmental Analysis of Vespula germanica Nest Records Explains Slow Invasion in South Africa. Insects (2021).