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REALIGNMENT
The first release of 100 toads near Cairns, Queensland, was followed a
month later by release of 3,000 more onto sugar plantations throughout
northern Queensland, despite the lack of evidence that they did any-
thing to limit the beetle population. It has since been proven that the
toads have no effect on the beetle problem.
Even at the time several environmentalists, such as the museum cura-
tor Roy Kinghorn and the government entomologist W. W. Froggatt,
protested the introduction, but to no avail (Australian Museum Online
2003). Today their warnings seem prescient. The toad population, in
the millions and spreading around Australia at a rate of about a mile
per year, endangers indigenous wildlife in three ways: competition for
food, eating small animals, and poison glands, which cause everything
that eats the toad itself to die very quickly of heart failure (National
Heritage Trust 2004). So far, efforts to control the toad have met with
almost no success, and it remains one of the most dangerous of the
continent’s invasive pests.
In addition to this kind of experimentation, the first half of the 20th
century saw the completion of many large infrastructural projects that
further symbolized European Australians’ desire to control and tame
their fragile environment. The Hume Dam was begun in November
1919 in an effort to control flooding from the Murray River and to har-
ness water for irrigation and domestic and industrial use. In 1936 the
completed dam was the largest in the Southern Hemisphere and second
largest in the world at the time, at 131 feet (40 meters) high and 5,300
feet (1,615 meters) long; the resulting reservoir held 407 billion gallons
(15,420 Gl) of water. Since that time, however, changes to the dam
and drought have affected the water levels and led to a perception that
the lake is “dry and empty,” despite the nearly four square miles (10
sq. km) of water available for boating, water skiing, fishing, and other
recreational activities (Border Mail 2008).
The dam and resulting lake have also been blamed for significant
environmental damage along the course of the Murray River. The river’s
natural cycle is to run very high and cold in winter and then peter out
to almost nothing in the hot, dry summer months. Indigenous fish and
plant life were adapted to that cycle, and with its disruption such native
species as the Murray cod and mangrove swamps have come under
threat. The multistate management of the entire Murray basin, which
is located in New South Wales, Victoria, and South Australia, has also
led to considerable disagreement over how best to deal with the envi-
ronment, as well as water disputes, and the threat to the basin and its
ecology continues to this day.