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Invasive Alien Species

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Aichi Biodiversity Target Nine – Invasive Alien Species – focuses on the reduction of threats to biodiversity and ecosystems from invasive alien species. It states: By 2020, invasive alien species and pathways are identified and prioritized, priority species are controlled or eradicated, and measures are in place to manage pathways to prevent their introduction and establishment. 

Invasive alien species are one of the main drivers of biodiversity loss in many ecosystems, and particularly in island ecosystems. They can pray on native species or outcompete them for resources. In addition, invasive alien species can carry enormous social and economic costs by posing a threat to food security, water supplies, human health and economic development. To reduce the threat from them, countries will need to identify the extent and distribution of prioritized invasive alien species; gauge their impact on key biodiversity and ecosystems, including economic impacts. They will also need to take steps to reduce pressures and future threats, including early detection and prevention of new introductions; controlling or eradicating existing populations; and developing national invasive species plans. 

Target 9 indicators may include status and trends in: 

  • Distributions of key invasive species
  • Impacts of key invasive species on biodiversity and ecosystems
  • Economic impacts of key invasive alien species
  • Policy responses, including legislation, management plans, early detection and control efforts

Main Resources

Topic / Topic starter Replies Last post
In-Tree Project. Introduced Tree species in European Forests
by Andrea Ortiz Vargas » 14 January, 2019 - 16:09
by Ensafeindia
24 January, 2019 - 19:16
CBD Toolkit Prototype To Facilitate Parties To Achieve Aichi Biodiversity Target 9 On Invasive Alien Species Is Out For Review
by Christina Supples » 10 October, 2014 - 01:40
by Anonymous (not verified)
3 July, 2018 - 01:23
Plant Invasions in Protected Areas Patterns, Problems and Challenges Invading Nature - Springer Series in Invasion Ecology Volume 7 2013 Editors: Llewellyn C. Foxcroft, Petr Pyšek, David M. Richardson, Piero Genovesi
by Christina Supples » 11 December, 2013 - 05:17
by Anonymous (not verified)
18 June, 2018 - 12:41
Invasive Alien Plants and their Management in Africa
by Jamison Ervin » 23 November, 2013 - 01:29
by Anonymous (not verified)
16 June, 2018 - 01:42
An ounce of prevention
by Christina Supples » 11 November, 2013 - 17:18
by Anonymous (not verified)
25 June, 2018 - 22:03
Assessing and managing invasive species in protected areas
by Christina Supples » 11 November, 2013 - 17:18
by Anonymous (not verified)
25 June, 2018 - 21:48
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