Papers by Glyn Rimmington
Australian Journal of Plant Physiology, 1984
A model of the effect of interspecies competition for light on the daily dry-matter production of... more A model of the effect of interspecies competition for light on the daily dry-matter production of competing species is developed. It describes the absorption of light by the component species, accounting for their different optical properties. Absorption equations are formulated from the principle of conservation of light energy within a unit-leaf-area-index of canopy, and the integral of absorbed light energy is then used to calculate the rate of dry-matter production of each component species. This model proved useful for the analysis of data from experiments in which New Zealand white clover (Trifolium repens L.) and perennial ryegrass (Lolium perenne L.) were grown in mixtures. Application of the model enabled the proportion of incident light energy absorbed by each component to be estimated and unambiguous differentiation between the amount of light energy absorbed and the efficiency of use of the absorbed light energy.
Climate Research, 1992
A wheat growth model that includes the direct responses of canopy photosynthesis and transpiratio... more A wheat growth model that includes the direct responses of canopy photosynthesis and transpiration to elevated CO, and the response of crop growth to water stress has been developed and tested. Sensitivity analyses show that different cultivars have quite different responses to changes in ambient air temperature, ambient CO2 concentration and rainfall. Because crops reach maturity earlier under higher temperature, a n increase of 3 "C may not impose further water stress to growth of a wheat crop in Victoria, Australia. However shorter maturation time may lead to a net decrease in crop biomass accumulation and potential grain yield in some early maturing cultivars. It is suggested that selection of suitable cultivars is one of the key strategies for coping with climate change.
Landscape series, 2020
The patterns we see in the growth of a plant or the behaviour of animals can appear very complex,... more The patterns we see in the growth of a plant or the behaviour of animals can appear very complex, but there are often simple rules that underlie what we see. Systems of rules, called L-systems can capture the organisation of branching patterns and other features of growing plants. Simple rules of behaviour can explain many features of animal behaviour; multi-agent simulations use these rules to model community organisation and interaction with the environment.
Springer eBooks, 2006
So far in this book, we have looked at populations as if all the individuals comprising them were... more So far in this book, we have looked at populations as if all the individuals comprising them were interchangeable. In reality, this is not so. Walk through an unmown meadow and you will see that different plants of the same species have different sizes, colours and proportions; some may be thornier, have larger leaves, more flowers, or thicker stems than others. Some of these differences are simply attributable to environment: malnourished individuals will usually be relatively small, for example. However, many differences, such ...
International Journal of Learning and Change, 2009
Learning organisations face new challenges in the 21st century. Increased flow of trade in commod... more Learning organisations face new challenges in the 21st century. Increased flow of trade in commodities, manufactured goods and information as well as mobility of people have led to increased global interdependence, interconnectedness and cultural diversity. People and teams within learning organisations have become globally distributed with the aid of improved communication technologies. As a result, more sophisticated approaches to developing a global mindset, understanding multiple perspectives and improving ...
Springer eBooks, 2006
ABSTRACT
Remote Sensing, Apr 12, 2022
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Functional Plant Biology, 1985
Predicted and observed data for the amount of light energy intercepted by mixtures of clover and ... more Predicted and observed data for the amount of light energy intercepted by mixtures of clover and ryegrass are compared, in an additional test of a model which relates competition for light to crop dry matter production. The closeness of predicted and observed values for light interception implies that the optical properties of the component species do not change significantly when they are grown in mixtures. If this is true, then it should be possible to predict the growth of mixtures using information about their optical properties when they are grown in monocultures.
Journal of Plant Research, Jun 14, 2008
Little attention has been paid to how four dominant shrub species distributed in semi-arid areas ... more Little attention has been paid to how four dominant shrub species distributed in semi-arid areas respond to the combined effects of temperature and water supply. Seedlings of four species were grown in a glasshouse for eight weeks at air temperatures of 12.5/22.5, 15/ 25, 17.5/27.5, and 20/30°C (night/day) and with water supplies of 37.5, 75, 112.5, and 150 mm per month. When temperatures were 17.5/27.5 and 20/30°C relative growth rate (RGR) decreased for Artemisia ordosica, A. sphaerocephala, and Hedysarum laeve but not for Caragana korshinskii. RGR increased with increasing water availability for all four species and most treatments. In response to changing water availability, the RGR tended to correlate mainly with the physiological trait (net assimilation rate, NAR) and with dry matter allocation traits (below-ground to above-ground dry matter and leaf mass ratio). A higher ratio of below to above-ground dry matter for all four species under most treatments (0.3-1.7) and water-use efficiency (1.4-9.2 g kg-1) may explain how all four species survive drought. Higher temperatures may be harmful to A. ordosica and A. sphaerocephala, under current precipitation levels (average 75 mm per month from mid-June to mid-August). These findings support the proposal that A. ordosica mixed with C. korshinskii will prove optimal for re-vegetation of degraded areas of the Ordos plateau.
Australian journal of agricultural research, 1993
Springer eBooks, 2006
Covering an area of more than 6 million square kilometres, the Amazon Basin dominates northern Br... more Covering an area of more than 6 million square kilometres, the Amazon Basin dominates northern Brazil and forms a large part of the South American continent. The richness of its biodiversity, and the hostility of its natural environment, mean that even today we can form no clear picture of the Amazon rainforest ecology. Yet even fragmentary glimpses reveal that the Amazon forms an extravagance of nature beyond the wildest imaginings of taxonomists. When biologist TL Erwin examined a single species of Amazonian tree, he found 163 ...
Secondary students are graduating into a world that is increasingly interconnected, interdependen... more Secondary students are graduating into a world that is increasingly interconnected, interdependent and culturally diverse. This dynamic environment requires a level of intercultural and information literacy that is presently recognized by some school district leaders and teachers in a mid-western suburban school district as a necessity for its graduates. This study focused on district stakeholder perspectives about: the current intercultural and information literacy of graduates; what is needed for future graduates; and requirements for instituting curricular changes to prepare its students for the 21 st century. A qualitative methodology comprising focus groups, interviews, an online survey of key stakeholders and a document review were conducted. Critical social, social exchange and constructivist learning theories, underpinned by a constructionist epistemology, informed this study. The results should serve as an aid for awareness and planning in the school district in relation to curricular and instructional issues.
Abstracts with programs, 2022
The influence of moisture, light, and temperature on Venturia pirina ascospore maturation and dis... more The influence of moisture, light, and temperature on Venturia pirina ascospore maturation and discharge was studied during 1992–99 in 2 pear-growing regions in Victoria. In each year and site, mature ascospores were trapped over a 3-month period beginning a few days before or at the green-tip stage of pear tree development in early September and ending in late November, with the majority of ascospores ((>80%) trapped between green-tip and petal-fall. Ascospore discharge was associated with rain and dew, with 90–98% of the season’s total number of ascospores trapped during rain events and 2–10% trapped during dew events in the 12 data sets examined. Most ascospores were trapped (82.5– 99.9%) during daytime (0600–1800 hours). The 0.1–17.5% of ascospores detected during night time (1900–0500 hours) were trapped mainly within 1–3 h of dawn or dusk. There were linear relationships between the logit of cumulative percentage of ascospore maturation and temperature accumulation (above 0 degree-days), calculated both daily and for days with >= 0.2 mm of rainfall. Six linear regression equations were formulated with 10 years of field data and using the 2 methods of accumulating degree-days, to predict the cumulative percentage of matured ascospores. Predictions were compared with additional field and laboratory observations not used in the formulation of the linear equations. The importance of the temperature-based linear equations is discussed in relation to the prediction of pear scab ascospore maturity for use in a pear scab management program.
Engineering collaboration in today's interconnected global economy requires engineers who can und... more Engineering collaboration in today's interconnected global economy requires engineers who can understand, respect, and work collaboratively with different cultures around the world. Companies no longer design and build airplanes, cars and other technologicallyintensive products within one country but through engineering and manufacturing capabilities wherever it can be economically utilized. Engineers must have skills for perceiving and adjusting for differences in culture needed in such global collaborations. This paper describes efforts to integrate global learning strategies into the ME 662 senior design course in the mechanical engineering design curriculum at Wichita State University. The goal is to develop a globally aware, culturally sensitive and adaptive engineer. Educators and researchers from engineering, education, and specialists in global learning are facilitating the process. The methodology includes implementation of the "cage painting" metaphor and accompanying simulator. Preliminary experiences from unique collaborations of local and international industry and academic institutions in the U.S., Russia, and India from the Spring 2006 are included in the paper.
Society for Information Technology & Teacher Education International Conference, 2003
CSR, sustainability, ethics & governance, Dec 25, 2016
In this chapter, we consider the stakeholder approach to proactive corporate social responsibilit... more In this chapter, we consider the stakeholder approach to proactive corporate social responsibility (CSR), which hinges on company executives and managers absorbing diverse stakeholder perspectives and vice versa, so that communication and decision-making can be meaningful. The ThirdPlaceLearning (TPL) framework, with associated relational criteria, facilitates systematically learning and absorbing the diversity of stakeholder perspectives. Application of TPL in this way represents a paradigm shift toward absorbing stakeholder and contextual complexity. This paradigm shift underpins complexification of business structures and processes, skillful management of diversity, and improvement of financial performance, as well as ensuring social and environmental sustainability. Together, these attributes can help businesses nurture proactive CSR, which in turn can help successfully avoid or respond to crises.
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Papers by Glyn Rimmington