The spread of non-native species
Phillip J Haubrock1,2, Ali Serhan Tarkan3,4, Irene Martín-Forés5,6
1Department of Life and Environmental Sciences, Bournemouth University, Poole, Dorset, Talbot Campus, Fern Barrow, Poole, Dorset, BH12 5BB, UK.
Biological Reviews of the Cambridge Philosophical Society
|December 24, 2025
Summary
Human activities are driving global species redistribution, leading to widespread biological invasions. This review synthesizes ecological, evolutionary, and anthropogenic factors influencing the spread of non-native species across diverse ecosystems.
Area of Science:
- Ecology
- Environmental Science
- Conservation Biology
Background:
- Global species redistribution is a hallmark of the Anthropocene.
- Biological invasions significantly alter biodiversity, ecosystem functions, and species interactions worldwide.
Purpose of the Study:
- To synthesize the ecological, evolutionary, and anthropogenic mechanisms driving the spread of non-native species.
- To examine the dynamics of non-native species spread across various taxa and realms.
- To evaluate key phenomena influencing invasion spread and outline prediction methods.
Main Methods:
- Literature review synthesizing existing research on non-native species spread.
- Cross-system and cross-scale analysis of ecological, evolutionary, and anthropogenic factors.
- Evaluation of phenomena such as invasion fronts, Allee effects, and biotic interactions.
Main Results:
- Dispersal, recruitment, and establishment interact across spatial and temporal scales to facilitate spread.
- Environmental change, landscape properties, and biotic interactions modulate invasion dynamics.
- Spread can be measured and predicted using diverse tools from diffusion models to AI.
Conclusions:
- Understanding non-native species spread is crucial for effective policy and management.
- A comprehensive synthesis advances theoretical and practical knowledge of biological invasions.
- Interdisciplinary approaches are essential for addressing the global challenge of species invasions.
Keywords:
Allee effectsbiological invasionsdiffusiondispersalinvasion frontinvasivenessnon‐native speciesMore Related Videos
Related Concept Videos
Distribution and Dispersion
24.0K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
24.0K
Threats to Biodiversity
26.4K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
26.4K
Population Growth
27.7K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
27.7K
Gene Flow
37.3K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.3K
Formation of Species
44.5K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
44.5K
Habitat Fragmentation
20.9K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
20.9K


