Ecos

A bimonthly scholarly journal that publishes research and issues of sustainability in the environment, industry and community. Focused on Australia and the Asia-Pacific region.

Articles from July-September

Burning Rubber. (Journal Extracts)
RUBBER vine is regarded as a `weed of national significance', but that's not meant as a compliment. A woody weed introduced from Madagascar, it has the potential to invade most of northern Australia. In Queensland, alone, it is already a problem in...
Carp Crusades: Steve Davidson Gives the European Carp a Fair Trial, and Outlines a Potential Genetic Route to Its Long-Term Management
Abstract: European carp are widespread in the Murray-Darling Basin and occur in all states and the ACT. They are blamed for many aspects of river and wetland degradation, it is unlikely that carp are responsible for declines in native fish or riverbank...
Cat Chronicles. (Journal Extracts)
SOME believe that the domestic cat arrived in Australia before European settlement along the coast, which occurred between 1788 and 1886. Suggested agents for such introductions include: Aborigines (as early as 50 000, or as recently as 3500 years...
Chicken Feed: Steve Davidson Explores the Dynamic Relationship between the Eagle and the Rabbit
Our largest bird of prey, the wedge-tailed eagle, has seen good times and bad. It has survived land clearing, livestock grazing, disappearing native prey, even bounty hunters. In the process, rabbits have become a dietary staple for the eagle, so...
Deepwater Sharks Dogged by Overfishing. (Spectrum)
Eating fish and chips on the beach seems a harmless enough past-time. But many fish fillets marketed as flake come from a group of small sharks known as dogfish. According to CSIRO Marine Research scientist, Ross Daley, catches of dogfish are unregulated,...
Fresh Measures. (Moreton Bay Study)
Five groups of indicators that provide a broad picture of freshwater ecosystem health have been identified as part of the South-east Queensland Regional Water Quality Management Strategy. The indicator groups were determined during a scientific...
Hands across the Water: `South-East Queensland's Catchments and Waterways Will, by 2020, Be Healthy Living Ecosystems Supporting the Livelihoods and Lifestyles of People in South-East Queensland and Will Be Managed through Collaboration between Community, Government and Industry'. (Moreton Bay Study)
This vision marked the beginning of south-east Queensland's Regional Water Quality Management Strategy. It was born of a realisation that Moreton Bay and its four major rivers were slowly choking on increasing amounts of sediment, nutrients and toxicants....
It Pays to Count Your Rabbits
When planning assaults on rabbit populations, as in any battle, it pays to know as much as possible about their size, structure and habits. The battle plan will be much more successful if it targets a weakness in the rabbit community. Drs John Wilson,...
Keeping Trouble at Bay. (Moreton Bay Study)
For the past 30 years, water quality measurements in Brisbane's Moreton Bay have tracked an increase in nutrients and sediments. When the Moreton Bay Study was initiated in 1994, sewage effluent, industrial discharges, and stormwater and catchment...
Managing Pine Rivers. (Moreton Bay Study)
On their journey to Moreton Bay, the north and south arms of Pine River traverse an 808-square-kilometre catchment supporting a variety of land uses. These include national parks, managed forests, agricultural and urban developments, industry and internationally-important...
Master Modellers. (Moreton Bay Study)
Models are important tools for understanding natural processes, and for predicting the outcome of scientific experiments or management actions. So it's no surprise that a model representing the complex ecosystem of Moreton Bay and its catchments should...
Mossies and Malaria. (Journal Extracts)
MALARIA kills more than one million people every year, and infects between 300 and 500 million. The disease is present in more than 90 countries and is set to spread, thanks to global warming, El Nino events and international travel. Attempts to...
Not-So-Fearsome Fossils. (Journal Extracts)
BY THE 1990s, many palaeontologists held the view that reptiles had dominated the large, land, carnivorous fauna of Australia millions of years ago, in the mid-Tertiary to Pleistocene period. But did fearsome reptiles really dominate the southern continent...
Old Habits Die Hard. (Spectrum)
Charles Darwin and others have assumed that the diversity of marsupial species in Australia reflects the absence of competition from placental mammals during the early Tertiary period. Was this really the case? Why didn't marsupials share Australasia...
Preserving Taxonomy. (Spectrum)
Consider the anglerfish. While not an attractive fish by any stretch of the imagination, it none-the-less attracts attention with its fearsome appearance and unusual reproductive strategy. According to Alastair Graham, manager of the Australian...
Running with Bugs: Wendy Pyper Braves the Icy Waters of Southern Tasmania to Find Tiny Indicators of Healthy Water
Stumbling along the stream bank in a pair of oversized waders did little for my confidence. With swiftly flowing water and a treacherously rocky surface to navigate, an unplanned dip in the icy Mountain River appeared likely. According to my companion,...
Small Wonders: Sharon Corey of CSIRO Entomology Describes a Journey to the Little Known
A quarter of a million species of arthropods (insects, spiders, jointed-legged creatures) are thought to inhabit Australia, but only 60000 of them have been formally described and named. `Compared with animals and plants, the arthropod fauna of...
Sourcing Sediments. (Moreton Bay Study)
In an average dry year, 200 000 tonnes of sediment is discharged into Moreton Bay. In a wet year, a massive 900 000 tonnes can blanket the seabed. Most of this sediment comes from gullies, streambanks and cleared hillslopes upstream. In the Brisbane...
Tolerance to 1080. (Journal Extracts)
The highly toxic compound fluoroacetate was first synthesised in 1896 and is used widely as a vertebrate pesticide in Australia and New Zealand in the form of Compound 1080. Only many years later did scientists discover that fluoroacetate occurs naturally...