Invasive alien plant species are probably the most common group of invasive species in almost all regions of the world. Most major ecosystem types are affected, terrestrial and aquatic. A number of different types of impacts have been reported: on crops, pastures and tree plantations; on native...

Melaleuca quinquenervia (the melaleuca tree or paper-bark tree) is native to Australia and Papua New Guinea and was introduced to Florida, USA, at the beginning of the twentieth century to provide a useful crop that would grow in an area subject to drought, flooding and periodic fires where little...

In 2004 the Australian Government officially recognised the significance of climate change on exotic species management (both weeds and pest animals) and biodiversity conservation, with the release of the National Action Plan for Biodiversity and Climate Change (NRMMC 2004). In order to meet the...

Invasive plants can be a source of conflict for conservation management. While the detrimental impacts of plant invasions on biodiversity and ecosystem function are well known, in some cases, invasive plants perform important roles in supporting fauna. For example, fleshy-fruited invasive plants...

Projections of future climate change raise significant issues for invasive species management. In this study, stakeholders' perceptions of invasive alien plant species are examined and compared to their perceptions of other environmental issues, including climate change, on the Mediterranean...

Invasive plants have the potential to change ecosystems and the services they provide, causing direct and indirect economic damages. Optimal policy weighs the cost of any removal or prevention action against the damages of inaction, and will minimise the total expected costs and damages of...

Buffel grass (Cenchrus ciliaris and C. pennisetiformis) is an exotic perennial grass. Many cultivars have been introduced to rangeland Australia over the past century, including several that have been actively promoted for pasture. It is widely naturalised and is now one of the most important...

Onion weed is a widespread introduced unpalatable species of temperate and semi-arid areas in Western Australia, South Australia, Victoria and New South Wales. Community concern regarding the continuing expansion of this species and potential impacts to pastoral production and biodiversity has...

There are more than 160 species of naturalised exotic grasses in northern Australia and these have invaded a range of freshwater and terrestrial environments. We have been studying the impacts of two exotic grasses, gamba grass (Andropogon gayanus Kunth.) and para grass (Brachiaria mutica Forssk.), ...

The impacts of weed management on native biodiversity are often overlooked. Burning and grazing plots of land, in isolation and in combination, were used to experimentally reduce the biomass of introduced para grass (Urochloa mutica (Forssk.) T.Q.Nguyen) in a North Queensland wetland. Frogs were...