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German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

Promise and challenges of risk assessment as an approach for preventing the arrival of invasive species

Promise and challenges of risk assessment as an approach for preventing the arrival of invasive species
Reuben P. Keller1
1Institute of Environmental Sustainability, Loyola University Chicago. 1032 W. Sheridan Rd., Chicago, IL 60660. , (+1)(773)508-2952

Invasive species are a major threat to agriculture, environments, and economies around the world. One main method for reducing this threat is to implement risk assessment programs that proactively estimate whether non-native species are likely to cause harm. When these programs are coupled with efforts to prevent the arrival of high risk species they have been shown to be effective at reducing invasive species harms. Several recent studies have also shown that although risk assessment programs reduce the number of species available for trade they produce large economic benefits for nations because invasive species impacts are relatively expensive compared to the benefits of species in trade. Risk assessment tools clearly have great potential and although they are not yet widely implemented there are increasing efforts by nations to develop them. Despite this, these programs are often poorly coordinated both within and among nations, and many taxa are not adequately covered. Additionally, a bewildering range of approaches to risk assessment have been developed, with a particularly sharp divide between the approaches favored by academics and managers. In this presentation I will discuss the progress that has recently been made in risk assessment and the promise of additional benefits from wider coordination and implementation. I will also discuss the main challenges to increased use of risk assessment and how I believe those challenges can be overcome.

Read 2877 times Last modified on Tuesday, 03 May 2016 12:27

General News Updates

2019 National Symposium on Biological Invasio…


This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

2019 Invasive Species Training


During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group


Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?


On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released


Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised


The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more