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Physical Sciences and Mathematics Commons™
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- Aboriginal Australians -- Western Australia -- Murchison Region -- Folklore (1)
- Children -- Health risk assessment -- Western Australia. (1)
- Cross-habitat exchanges (1)
- Data mining (1)
- Disturbance (1)
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- Edge effects (1)
- Formaldehyde -- Environmental aspects -- Western Australia (1)
- Gastropods (1)
- Geospatial data sets (1)
- Habitat connectivity (1)
- Habitat linkages (1)
- Herbivory (1)
- Kalbarri (WA) (1)
- Kelp (1)
- Niche width (1)
- Predation (1)
- Rocky reefs (1)
- Sea urchin (1)
- Seagrass (1)
- Shading (1)
- Springs -- Western Australia -- Folklore (1)
- Supply-side processes (1)
- Trophic interactions (1)
- Water catchments (1)
- Water-supply -- Western Australia -- Citizen participation (1)
- Western Australia (1)
- [RSTDPub] (1)
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Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
Light Reductions Drive Macroinvertebrate Changes In Amphibolis Griffithii Seagrass Habitat, Adam Gartner, Paul S. Lavery, Kathryn Mcmahon, Anne Brearley, Helen Barwick
Light Reductions Drive Macroinvertebrate Changes In Amphibolis Griffithii Seagrass Habitat, Adam Gartner, Paul S. Lavery, Kathryn Mcmahon, Anne Brearley, Helen Barwick
Research outputs pre 2011
Numerous anthropogenic activities can significantly reduce the amount of light reaching seagrass habitats. Typically these result in morphological and physiological changes to the plant and associated algal epiphytes. However, the flow-on effects to seagrass-dependent fauna induced by these disturbances has yet to be examined. This study investigated the effects of different light reduction intensity (high: ~92% reduction; moderate: ~84% reduction), duration (3, 6 and 9 mo) and timing (post-winter and post-summer) on the density and biomass of macroinvertebrate epifauna within an Amphibolis griffithii seagrass ecosystem (Western Australia). There were generally lower epifauna densities and biomass within shaded seagrass plots. When …
Employee Engagement With A Corporate Physical Activity Program: The Global Corporate Challenge, Pascal Scherrer, Lynnaire Sheridan, Ruth Sibson, Maria Ryan, Nadine Henley
Employee Engagement With A Corporate Physical Activity Program: The Global Corporate Challenge, Pascal Scherrer, Lynnaire Sheridan, Ruth Sibson, Maria Ryan, Nadine Henley
Research outputs pre 2011
Employers engage with corporate physical activity programs to foster employee wellbeing with a view to reducing the costs of absence and recruitment. This study reports on employee engagement with a commercial program, the Global Corporate Challenge, in terms of motivation, barriers, team dynamics, social aspects and self-reported physical activity levels. It uses guided introspection to explore how participation affected employee's motivation to sustain regular physical activity within the workplace setting. The program raised awareness of employees' individual physical activity levels and fostered social interaction in the workplace. Findings highlight the importance of employers providing a supportive context, fostering staff-led team …
Stable Isotopes Reveal A Consistent Consumer-Diet Relationship Across Hundreds Of Kilometres, Mathew A. Vanderklift, Thomas Wernberg
Stable Isotopes Reveal A Consistent Consumer-Diet Relationship Across Hundreds Of Kilometres, Mathew A. Vanderklift, Thomas Wernberg
Research outputs pre 2011
Characterising geographical variation in trophic interactions is an important step towards understanding the consequences of changes in food webs. We characterised geographical variation across ~1000 km in stable isotope values (δ15N and δ13C) of the widely distributed sea urchin Heliocidaris erythrogramma and macroalgae that are its potential food. Variation in δ15N of H. erythrogramma and macroalgae was typically greatest among locations separated by hundreds of km, while variation in δ13C was typically greatest among reefs separated by a few km. Geographical variation in δ15N and δ13C of H. erythrogramma was well-explained by variation in δ15N and δ13C of the kelp …
Interrogation Of Water Catchment Data Sets Using Data Mining Techniques, Ajdin Sehovic, Leisa Armstrong, Dean Diepeveen
Interrogation Of Water Catchment Data Sets Using Data Mining Techniques, Ajdin Sehovic, Leisa Armstrong, Dean Diepeveen
Research outputs pre 2011
Current environmental challenges such as increasing dry land salinity, water logging, eutrophication and high nutrient runoff in south western regions of Western Australia (WA) may have both cultural and environmental implications in the near future. Advances in computing through the application of data mining ,and geographic information services provide the tools to conduct •studies that can indicate possible changes in these water catchment areas of WA. The research examines the existing spatial data mining techniques that can be used to interpret trends in WA water catchment land use. Large GIS data sets of the water catchments on Peel-Harvey region have …
Proximity To Rocky Reefs Alters The Balance Between Positive And Negative Effects On Seagrass Fauna, Fernando Tuya, Mathew Vanderklift, Glenn Hyndes, Thomas Wernberg, Mads Thomsen, Christine Hanson
Proximity To Rocky Reefs Alters The Balance Between Positive And Negative Effects On Seagrass Fauna, Fernando Tuya, Mathew Vanderklift, Glenn Hyndes, Thomas Wernberg, Mads Thomsen, Christine Hanson
Research outputs pre 2011
Proximity to habitat margins can alter the balance between positive and negative forces on species abundance. Based on this idea we examined abundance patterns of herbivorous gastropods in seagrasses adjacent to rocky reefs. We tested whether the balance between the intensity of predation (negative effect) and recruitment of new individuals (positive effect) changes with increasing distance from reefs. Abundances of gastropods varied with distance to reefs, but the direction of changes in abundance was taxon-specific: some taxa decreased in abundance with increasing distance from reefs (e.g. Pyrene bidentata), while others showed the opposite pattern (e.g. Cantharidus lepidus). Predators were more …
Personal Exposure Of Children To Formaldehyde In Perth, Western Australia, Victoria S. Lazenby
Personal Exposure Of Children To Formaldehyde In Perth, Western Australia, Victoria S. Lazenby
Theses: Doctorates and Masters
Formaldehyde is a common air pollutant that tends to be found in elevated concentrations in indoor air. Exposure to formaldehyde has the potential to impact on respiratory health, particularly amongst sensitive individuals and populations, including children. Children spend most of their time indoors at home, however, there are very little data on the contribution of formaldehyde concentrations in homes to personal exposure in children. The principal aim of this cross sectional study was to investigate whether the domestic environment is the most significant source of personal exposure of formaldehyde in children. Forty-one primary school children (aged between 8 and 12) …
Where New Meanings Spring: The Relationship Between Indigenous Cultural Meanings For Freshwater Springs And Management Practices: Analysis Of Stories From Kalbarri, Western Australia, Tamara Lee Murdock
Theses : Honours
While Indigenous peoples' practices have been acknowledged to change and evolve, whether Indigenous cultural meanings invested in a specific place also change and/or evolve over time, and the affect these changes may have on land and water practices has generally been ignored. This study explores the relationship between Indigenous cultural meanings and land and water stewardship practices, and whether these change over time. A qualitative research design was employed in this study to emphasise the complex and dynamic nature of language and the relationship between people, culture and nature. This study utilised interviews collected from traditional Indigenous people concerning stories …