Stories in this Theme

During 2002-2003 meetings were held with Minister Robertson and the CEO of Sunwater, Mr Peter Noonan regarding the issue of the noxious fish 'Tilapia' escaping from Lake Tinaroo and infesting the Mitchell River and other Gulf Rivers. After demonstrating the legal implications Sunwater agreed to give this project their full support and has spent approximately 1.2 million dollars to install mesh screens and associated infrastructure to prevent the escape of Tilapia into the Mitchell River system through the irrigation channels.

This project aims to enable Kaanju people to develop an integrated and strategic approach to the management of weeds on traditional homelands. Primarily, it seeks resources to develop innovative research methodologies that support on-country consultation to determine cultural priorities for weed management on a clan basis for Kaanju homelands. The project will develop innovative approaches to pest species management that can be used as a model for clan-based weed management in areas outside Kaanju homelands in Cape York Peninsula.

Jack Lakes is one of the most extensive wetland systems on South-eastern Cape York Peninsula. Biodiversity surveys of Jack Lakes were conducted by CYMAG scientists, Queensland Parks & Wildlife (QPW) and flora and fauna consultants at the end of the dry season (November 2007) and the end of the wet season (June 2008). The major objectives of the survey were to assess biodiversity through fauna and flora surveys, to identify threats to the biodiversity and to provide recommendations for the future management of Jack Lakes.

What and Where

Parthenium ( Parthenium hysterophorus ) is a native of North and South America first found in Queensland in 1955. It is now well established central Queensland, extending as far west as Longreach and into the north and south of the state.

Fire is a highly effective technique for controlling Prosopis pallida, the most widespread mesquite species
in Australia. The best kill comes from burning late in the dry season when the plants are stressed and the fires are intense; mature trees, seedlings and seeds
lying on the soil surface are susceptible.

Weeds have an enormous impact on Australia’s tropical savannas, and the problem is growing rapidly every year.

The major weedy plant species in northern Australia include grasses, herbs, vines and trees.  While only a small proportion of species have been formally declared noxious through legislation, many can still be regarded as weeds from one perspective or another.

In ecology, ‘disturbance’ is generally used as a technical term to describe the removal of vegetation—or other
dominant life forms—from an area. Disturbance may be by means of grazing, fire or mechanical removal. Mechanical
disturbance could be the consequence of a natural event such as a cyclone or a landslide or it may result from
human activities.

Realalistic goals for weed management are important, as is the development of a strategy.

Preventing new weeds from establishing and key processes for management.

Preventing weeds from establising and key processes for management.