A weed risk assessment model for use as a biosecurity tool evaluating plant introductions

  title={A weed risk assessment model for use as a biosecurity tool evaluating plant introductions},
  author={P. C. Pheloung and P. Andrew Williams and Stephan Halloy},
  journal={Journal of Environmental Management},
Abstract New plant taxa from around the world continue to be imported into Australia and New Zealand. Many of these taxa have the potential to become agricultural or environmental weeds and this risk needs to be assessed before allowing their entry. A weed risk assessment system is described that uses information on a taxon's current weed status in other parts of the world, climate and environmental preferences, and biological attributes. The system is designed to be operated by quarantine… 

Figures and Tables from this paper

Weed risk assessment of the DEH Alert List and other non-native plant species.

Environmental weeds pose a significant threat to natural ecosystems in Australia. The risk posed to the environment by 51 non-native naturalised plant species, which include the Australian

Risk Assessment of Potential Biofuel Species: An Application for Trait-Based Models for Predicting Weediness

It is suggested that, rather than attempting to improve a single-tiered decision-support system (the quarantine “sieve”), a multitiered system (nested sieves) would lead to a more effective system and greater cost-effectiveness.

A risk assessment based proactive management strategy for aquatic weeds in New Zealand

Aquatic weeds are notoriously difficult to manage once established. This paper discusses a range of proactive management actions undertaken by regulatory authorities based on the assessment of risk

Environmental weeds in Australia and New Zealand: issues and approaches to management

Environmental weeds are plants that invade natural ecosystems and are considered to be a serious threat to nature conservation. Australia and New Zealand, where biota with a high degree of endemism

Agricultural Weed Assessment Calculator: An Australian Evaluation

The Agricultural Weed Assessment Calculator (AWAC) was developed to quantify the present and potential future adverse impact of a weed species on crop production and profitability (threat analysis), thereby informing or directing research, development, and extension (RDE) investments or activities.

Predicting plant invaders in the Mediterranean through a weed risk assessment system

This study explores whether the Australian WRA can satisfactorily predict the invasion status of alien plants in the Mediterranean Basin by screening 100 invasive and 97 casual species in Spain and postulates that the WRA could be working as a precaution early-warning system to identify casual species with potential to become invasive.

The Risks Associated with Weed Spread in Australia and Implications for Natural Areas

The most significant weed spread pathways in Australia appear to be the trade in ornamental plants and movement of machinery and vehicles, while other important pathways include fodder trade, aquarium plant trade, agricultural produce, and water.

Weed Risk Assessment for Aquatic Plants: Modification of a New Zealand System for the United States

The high accuracy with which this tool can distinguish non-invaders from harmful invaders suggests that this tool provides a feasible, pro-active system for pre-import screening of aquatic plants in the US, and may have additional utility for prioritizing management efforts of established species.

A weed risk analytical screen to assist in the prioritisation of an invasive flora for containment

Prioritising weeds for control and deciding upon the type of control and its associated investment are fundamental to weed management planning. Risk analysis is central to this process, combining the



Bioclimatic prediction of the potential distributions of some weed species prohibited entry to New Zealand

Abstract The computer program BIOCLIM was used to estimate climatically suitable areas for three weeds which are prohibited entry to New Zealand. For Parthenium hysterophorus, nowhere in New Zealand

Predicting the Australian Weed Status of Southern African Plants

A method of predicting weed status was developed for southern African plants naturalized in Australia, based upon information on extra-Australian weed status, distribution and taxonomy, finding no variables were suitable predictors of non-agricultural (environmental) weeds.

Predicting Invasions of Woody Plants Introduced into North America

Plant species continue to be introduced in North America for various purposes. If the trend continues, it is probable that some will escape cultivation and become invasive in native ecosystems. We

Characteristics distinguishing invasive weeds within Echium (Bugloss)

Quantitative plant characteristics which distinguish weedy species of Echium from their innocuous counterparts, and whose values could most easily be determined by plant quarantine officials, are the breadth of native distribution and rapidity of seed germination.

Assessing the risk of invasive success in Pinus and Banksia in South African mountain fynbos

Functional groups are defined for pines based on life history attributes important for invasion in the fire-prone mountain fynbos, and Tall serotinous shrubs with many small seeds per plant, short juvenile periods and low fire tolerance were identified as high risk introductions.

Reducing the risks of nonindigenous species introductions.

A though plants and animals have always spread across the globe, expanding their ranges and invading new territories, human civilization has accelerated these biological invasions to an extraordinary

Predicting the identity and fate of plant invaders: emergent and emerging approaches.

Pine invasions in the Southern Hemisphere: Determinants of spread and invadability

Most of the important invaders share a suite of biological traits that facilitate long-distance dispersal by wind, and allow invading populations to persist in habitats subjected to frequent disturbance, which is used to predict future trends in pine invasions.