The threat of invasive Species 

Invasive alien species (IAS) represent one of the most significant threats to global biodiversity, impacting ecosystems, economies, and human, animal and plant well-being. These species, often introduced by human activity, can outcompete and predate on native species, disrupt food webs, and cause extensive ecological and native damage. When combined with climate change, the effects of IAS are amplified, leading to critical shifts in ecosystems and increased challenges for sustainability.

Managing Invasive Species

The primary challenge posed by IAS is their ability to rapidly adapt and spread across different environments, leading to ecological impact. In freshwater, marine, and terrestrial ecosystems, these species can cause the decline or extinction of native species, disrupt ecosystem services, and impose substantial economic costs. Agriculture and fisheries are particularly vulnerable, as IAS can damage crops, livestock, and marine resources, leading to food insecurity. Additionally, the interaction between IAS and climate change exacerbates these issues, as changing environmental conditions can facilitate the spread, establishment and impacts of these species in new regions.

Pioneering Research into the functional response of ISAs 

Research at Queen's University Belfast focuses on understanding the mechanisms of IAS invasion and, crucially, predicting their impacts across various ecosystems. This research combines fieldwork, laboratory experiments, and ecological modelling to explore how IAS interact with native species and ecosystems. A significant area of study is the "functional response" of IAS—how these species consume resources at different densities and the implications for native species and ecosystem stability. The research also investigates the synergies between IAS and climate change, exploring how shifting climates may alter the behaviour, distribution, and impact of IAS.

"This expertise was recognized internationally, with Queen’s researchers being sought for scientific and technical advice in New Zealand to combat the invasive Corbicula fluminea."

A deeper Understanding into how ISAs interact with their environment 

The research conducted at Queen's University Belfast has significant implications for managing invasive alien species (IAS) and mitigating their effects on biodiversity, economies, and human, animal, and plant health. By offering a deeper understanding of how these species operate and interact with their environments, the research informs policies and strategies aimed at controlling IAS and minimizing their impacts, which is crucial for preserving ecosystem services, protecting endangered species, and ensuring the sustainability of natural resources.

Additionally, the research underscores the need for global cooperation in addressing the dual threats of IAS and climate change, highlighting the importance of proactive management and early detection. This expertise was recognized internationally, with Queen’s researchers being sought for scientific and technical advice in New Zealand to combat the invasive Corbicula fluminea (Asian Clam). Their work led directly to an invitation from Biosecurity New Zealand, acknowledging their valuable input in managing this species within the country.

Impact related to the UN Sustainable Development Goals

Learn more about Queen’s University’s commitment to nurturing a culture of sustainability and achieving the Sustainable Development Goals (SDGs) through research and education.