James Cook University

About: James Cook University is a education organization based out in Townsville, Queensland, Australia. It is known for research contribution in the topics: Population & Coral reef. The organization has 9101 authors who have published 27750 publications receiving 1032608 citations. The organization is also known as: JCU.

High frequency of ‘super-cyclones’ along the Great Barrier Reef over the past 5,000 years

Abstract: Understanding long-term variability in the occurrence of tropical cyclones that are of extreme intensity is important for determining their role in ecological disturbances1,2,3,4,5, for predicting present and future community vulnerability and economic loss6 and for assessing whether changes in the variability of such cyclones are induced by climate change7. Our ability to accurately make these assessments has been limited by the short (less than 100 years) instrumented record of cyclone intensity. Here we determine the intensity of prehistoric tropical cyclones over the past 5,000 years from ridges of detrital coral and shell deposited above highest tide and terraces that have been eroded into coarse-grained alluvial fan deposits. These features occur along 1,500 km of the Great Barrier Reef and also the Gulf of Carpentaria, Australia. We infer that the deposits were formed by storms with recurrence intervals of two to three centuries8,9,10,11, and we show that the cyclones responsible must have been of extreme intensity (central pressures less than 920 hPa). Our estimate of the frequency of such ‘super-cyclones’ is an order of magnitude higher than that previously estimated (which was once every several millennia12,13,14), and is sufficiently high to suggest that the character of rainforests and coral reef communities were probably shaped by these events.

Impact of fecal incontinence on quality of life

Abstract: AIM: To explore the impact of fecal incontinence (FI) on quality of life (QOL) of patients attending urogynecology and colorectal clinics (CCs). METHODS: Cross-sectional study of 154 patients (27 male) with FI, who attended the clinics at a regional hospital in North Queensland, Australia in 2003 and 2004, and completed the Fecal Incontinence Quality of Life Scale (FIQL: 1 = very affected; 4 = not affected). RESULTS: More than 22% of patients had their QOL affected severely by FI. Patients reported that they had not previously been asked about FI by a medical practitioner nor did they voluntarily disclose its presence. The median FIQL scores for all participants were: lifestyle = 3.24; coping = 2.23; depression = 2.42; and embarrassment = 2.33. Increasing frequency of soiling had a negative effect on all four FIQL scales (P < 0.001) as did the quantity of soiling (P < 0.01). Female CC patients had poorer FIQL scores than urogynecology clinic patients for lifestyle (P = 0.015), coping (P = 0.004) and embarrassment (P = 0.009), but not depression (P = 0.062), despite having experienced FI for a shorter period.

Socioeconomic factors that lead to overfishing in small-scale coral reef fisheries of Papua New Guinea

Abstract: The coral reefs of Papua New Guinea are among the most species diverse in the world, support an important artisanal fishery, but lack an effective national conservation programme. Increased commercialization, population growth, promotion of fisheries development projects, and the live reef food fish trade are expected to increase demand for the country's reef fish. This paper examines how socioeconomic factors affect the condition of the artisanal multi-species coral reef fishery in six sites in Papua New Guinea. Catch characteristics such as diversity, trophic level and body size by landing site were examined along a fishing pressure gradient. Both exogenous factors such as markets and endogenous factors such as fishing pressure were related to the condition of fish catch. In general, the trophic level and lengths of fish captured in Papua New Guinea were relatively high, but were reduced on reefs with high fishing effort near fish markets. Fisheries showed signs of depletion above c. 25 fishing trips per km2 per day and the proximity of markets was a better indicator of overfishing than human population size. A cross-scale approach to fisheries management is required in Papua New Guinea to coordinate decentralized local management, limit the intrusion of extractive enterprises, and develop policies that seek to minimize exogenous pressures on marine resources.

Market competition, computer-aided manufacturing and use of multiple performance measures: an empirical study

Abstract: This paper reports the results of an empirical investigation into use of multiple measures of performance in manufacturing organisations. More specifically, it examines how a multiple performance measurement system is associated with the intensity of market competition and the application of computer-aided manufacturing processes. To test this association, data were collected from 71 New Zealand-based manufacturing units. The results suggest that greater emphasis on multiple measures for performance evaluation is associated with businesses facing high competition and making greater use of computer-aided manufacturing processes.