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Scientists' warning on invasive alien species.

Petr Pyšek1,2,3, Philip E Hulme4, Dan Simberloff5

  • 1Czech Academy of Sciences, Institute of Botany, Department of Invasion Ecology, Průhonice, CZ-252 43, Czech Republic.

Biological Reviews of the Cambridge Philosophical Society
|June 27, 2020
PubMed
Summary
This summary is machine-generated.

Biological invasions by alien species are increasing globally, significantly impacting native biodiversity and ecosystem services. Effective biosecurity strategies and international cooperation are crucial to mitigate these escalating threats.

Keywords:
biological invasionsbiosecurityenvironmental impactsglobal changeinvasion dynamicsinvasion hotspotsnaturalizationpolicyprotected areassocioeconomic impacts

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Area of Science:

  • Ecology
  • Conservation Biology
  • Environmental Science

Background:

  • Biological invasions are a growing global issue driven by increased human connectivity and population growth.
  • Invasive alien species, which spread beyond their native ranges, pose significant threats to ecosystems and human well-being.
  • The impacts of invasions are often long-term, complex, and become apparent only after species are well-established.

Purpose of the Study:

  • To highlight the escalating problem of biological invasions and their multifaceted impacts.
  • To emphasize the need for effective policy strategies and international cooperation in managing invasive alien species.
  • To underscore the interaction between invasions and other global changes.

Main Methods:

  • Review of scientific evidence on the impacts of invasive alien species.
  • Analysis of policy strategies for invasion prevention and management.
  • Case studies of successful biosecurity measures in specific nations.

Main Results:

  • Invasive alien species disrupt native biodiversity, altering species richness, genetic composition, and ecosystem functioning.
  • Impacts include changes in nutrient cycling, hydrology, habitat structure, and the delivery of ecosystem services.
  • While effective strategies exist, their implementation is often insufficient globally.

Conclusions:

  • Biological invasions represent a major threat to biodiversity and ecosystem services, with accelerating impacts.
  • Strengthening biosecurity regulations and fostering international cooperation are essential for effective management.
  • Addressing global changes that interact with invasions is critical for future mitigation efforts.