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Frogs as bio-indicators of chemical useage and farm practices in an irrigated agricultural area

Dramatic declines and extinctions in frog populations worldwide and high frequencies of physical or reproductive abnormalities in frogs may be directly or indirectly related to agricultural activities among other factors. The causes of the declines in amphibian populations remain unresolved, but recent studies suggest six main hypotheses to explain them: habitat destruction chemical contaminants, particularly pesticides increasing (more)...

Assessment of ecological risk associated with irrigation in the Fitzroy basin

Phase 2: Analysis and characterisation of risk with emphasis on effects on macroinvertebrates

This project in the Fitzroy catchment in Queensland was one of three case studies used to illustrate how ERA may be employed in the management of irrigation areas in Australia. In the problem formulation stage of the ERA process community stakeholders identified issues and helped to prioritise research needs for the second phase. These were that the research should focus on the irrigation area scale and the impact of the decline of water quality on (more)...