A predictive model of avian natal dispersal distance provides prior information for investigating response to landscape change

1. Informative Bayesian priors can improve the precision of estimates in ecological studies or estimate parameters for which little or no information is available. While Bayesian analyses are becoming more popular in ecology, the use of strongly informative priors remains rare, perhaps because examples of informative priors are not readily available in the published literature.
2. Dispersal distance is an important ecological parameter, but is difficult to measure and estimates are scarce. General models that provide informative prior estimates of dispersal distances will therefore be valuable.
3. Using a world-wide data set on birds, we develop a predictive model of median natal dispersal distance that includes body mass, wingspan, sex and feeding guild. This model predicts median dispersal distance well when using the fitted data and an independent test data set, explaining up to 53% of the variation.
4. Using this model, we predict a priori estimates of median dispersal distance for 57 woodland-dependent bird species in northern Victoria, Australia. These estimates are then used to investigate the relationship between dispersal ability and vulnerability to landscape-scale changes in habitat cover and fragmentation.
5. We find evidence that woodland bird species with poor predicted dispersal ability are more vulnerable to habitat fragmentation than those species with longer predicted dispersal distances, thus improving the understanding of this important phenomenon.
6. The value of constructing informative priors from existing information is also demonstrated. When used as informative priors for four example species, predicted dispersal distances reduced the 95% credible intervals of posterior estimates of dispersal distance by 8-19%. Further, should we have wished to collect information on avian dispersal distances and relate it to species' responses to habitat loss and fragmentation, data from 221 individuals across 57 species would have been required to obtain estimates with the same precision as those provided by the general model.

Sustainability - the crucial challenge for the valuation profession

Valuation has a pivotal role in increasing the level of sustainability in the built environment. To date, sustainability has received limited attention in valuation practice, and as a result the relationship between sustainability and market value has not been clearly defined. As a consequence, the commercial investment community are hesitant to invest in sustainability beyond best practice management techniques. Valuers’ lack of acknowledgement of sustainability in valuation practice and its changing role in property investment in the built environment, has had a potentially detrimental impact by limiting investment in sustainability in commercial property. Consequently, this lack of acknowledgment and incorporation of sustainability in practice has the potential to cause chaos within the market in the future. It was found that valuers, per se, are inexperienced and have limited knowledge of sustainability in commercial property. Due to differences between generations of valuers, this paper examines whether ‘younger’ valuers’1 knowledge of sustainability, as a concept, measurement and any possible relationship with market value is more extensive than senior valuers. Or whether senior valuers experiences in the market are more sensitive to the change sustainability is having in the commercial property market. A key issue for the profession concerning sustainability and its effect on the market is the limited channels for knowledge development. The implications of this research are the need for increased curriculum in university education, so knowledge dissemination across the profession can be achieved. The development of knowledge of sustainability and its relationship in commercial property will progress the incorporation of sustainability in valuation practice. As a consequence, this will increase the investment in sustainability in the commercial property market.

The value of sustainability in real estate : a review from a valuation perspective

Purpose – The purpose of this paper is to synthesise the plethora of research that has been conducted into the relationship between sustainability and market value in real estate, by critically analysing the research and the applicability of sustainability and value research in valuation practice.

Design/methodology/approach – The research on the relationship between sustainability and market value in real estate is examined from the perspective of its usefulness to the valuation profession in providing guidance, information and evidence to be used in valuation practice.

Findings – Existing research conducted into the relationship between sustainability and market value has not provided the valuation profession with evidence which would allow the incorporation of normative theories on the value of sustainability in valuation practice. This review highlights the lack of evidence, and the applicability of current research into sustainability and value to the valuation profession in providing guidance and information in valuing real estate incorporating sustainability.

Practical implications – This paper highlights the limited applicability of research to date in regard to the relationship between sustainability and market value for the valuation profession. The lack of historical evidence, data or information on the quantifiable effects on market value of this new trend (sustainability), leaves the valuation profession uncertain as to the relationship between sustainability and market value. There is a probable risk of valuers interpreting strategic research incorrectly, and making inappropriate adjustments or comparisons because of their lack of knowledge and limited sustainability assessment skills. Although there is an evolving body of knowledge, there is a need for extensive analysis of unbiased, evidence-based research in individual and broader markets to provide guidance, evidence and knowledge of the implications of sustainability in the valuation of real estate.

Originality/value – The examination of research investigating the relationship between sustainability and value from a valuation perspective provides an alternative insight into the applicability of current research in valuation practice. The increasing profile and role of sustainability in the real estate sector needs to be addressed in valuation practice; however, the variety of research to date needs to be interpreted by valuers in the correct context. This paper brings to light the applicability of sustainability and value research for the broader valuation profession, and the potential implications of misuse or misunderstanding of that research.

The human nexus – a practical framework for inspiring trust and making ethical decisions

This overview of David Hume’s wide-ranging observations is a matrix portraying the key elements of a pragmatic pathway to a moral decision that can be applied in any situation where organisational decisions need to be made. 

A predictive model of avian natal dispersal distance provides prior information for investigating response to landscape change

1. Informative Bayesian priors can improve the precision of estimates in ecological studies or estimate parameters for which little or no information is available. While Bayesian analyses are becoming more popular in ecology, the use of strongly informative priors remains rare, perhaps because examples of informative priors are not readily available in the published literature.

2. Dispersal distance is an important ecological parameter, but is difficult to measure and estimates are scarce. General models that provide informative prior estimates of dispersal distances will therefore be valuable.

3. Using a world-wide data set on birds, we develop a predictive model of median natal dispersal distance that includes body mass, wingspan, sex and feeding guild. This model predicts median dispersal distance well when using the fitted data and an independent test data set, explaining up to 53% of the variation.

4. Using this model, we predict a priori estimates of median dispersal distance for 57 woodland-dependent bird species in northern Victoria, Australia. These estimates are then used to investigate the relationship between dispersal ability and vulnerability to landscape-scale changes in habitat cover and fragmentation.

5. We find evidence that woodland bird species with poor predicted dispersal ability are more vulnerable to habitat fragmentation than those species with longer predicted dispersal distances, thus improving the understanding of this important phenomenon.

6. The value of constructing informative priors from existing information is also demonstrated. When used as informative priors for four example species, predicted dispersal distances reduced the 95% credible intervals of posterior estimates of dispersal distance by 8-19%. Further, should we have wished to collect information on avian dispersal distances and relate it to species' responses to habitat loss and fragmentation, data from 221 individuals across 57 species would have been required to obtain estimates with the same precision as those provided by the general model.

Health-related religious rituals of the Greek Orthodox Church : their uptake and meanings

Aim
To examine the uptake of religious rituals of the Greek Orthodox Church by relatives of patients in critical condition in Greece and to explore their symbolic representations and spiritual meanings.
Background
Patients and their relatives want to be treated with respect and be supported for their beliefs, practices, customs and rituals. However nurses may not be ready to meet the spiritual needs of relatives of patients, while the health-related religious beliefs, practices and rituals of the Greek Orthodox Christian denomination have not been explored.
Method
This study was part of a large study encompassing 19 interviews with 25 informants, relatives of patients in intensive care units of three large hospitals in Athens, Greece, between 2000 and 2005. In this paper data were derived from personal accounts of religious rituals given by six participants.
Results
Relatives used a series of religious rituals, namely blessed oil and holy water, use of relics of saints, holy icons, offering names for pleas and pilgrimage.
Conclusion
Through the rituals, relatives experience a sense of connectedness with the divine and use the sacred powers to promote healing of their patients.
Implications for nursing management
Nurse managers should recognize, respect and facilitate the expression of spirituality through the practice of religious rituals by patients and their relatives.

Sustainable management of real estate : is it really sustainability?

This paper investigates from a management perspective exactly what building owners and managers of commercial real estate are actually doing in the guise of sustainability. This research investigates key owners of real estate portfolios in Australia and New Zealand, and examines what they perceive sustainability to mean to their commercial real estate portfolios and their level of implementation. The research uses a qualitative framework in order to gain an understanding of owners’ perceptions of sustainability. The findings reveal that owners perceive sustainability to be very important to the longevity of their portfolios. However, at present, sustainability factors are limited to resource efficiency measures in their real estate portfolios. Consequently, this research questions whether current interpretation and implementation of sustainability in commercial real estate is merely ‘changing the name’ of best practice management to ‘sustainability.’

Is the valuer the barrier to identifying the value of sustainability?

Purpose - Broad-scale investment in sustainability is limited due to the lack of evidence of the relationship between sustainability and the property’s market value. Although evidence is amassing and being analyzed through advanced modeling, this evidence is not being reflected in the valuation process. Valuers have a pivotal role in financial markets, in the reporting of asset values. Consequently, they are the current barrier in large-scale investment in sustainability, due to their lack of reporting or consideration of sustainability in the valuation process.

Design/methodology/approach - This research investigates, in the Australian context, whether valuers’ are incorporating sustainability as a consideration in the valuation process and their depth of reporting on it. Further, the research investigates whether valuers’ have the knowledge and skills to accurately report on sustainability in the valuation process. This research used an online survey to gather responses from valuers around Australia, using a combination of structured and semi-structured questions.

Findings - This paper has identified that valuers are identifying a value relationship between sustainability and market value, and clearly emphasizing that they are not the barrier to this relationship from a lack of inclusion in valuation practice. However, what this research has identified is that although valuers are acknowledging sustainability in their practice, they maybe inhibiting further investment in sustainability due to inaccurate or misjudged assessments of sustainability in valuations.

Practical implications - The research highlights the implications for the broader market and the valuation profession, as a result of the valuers’ current lack of knowledge, skills and ability to incorporate or consider sustainability in the valuation process. The potential for inaccurate knowledge regarding sustainability being incorporated in the valuation process is very high, and could potentially have litigious issues in the future.

Originality/value - The research has highlighted that although valuers are beginning to consider sustainability at some level in the valuation process, their current knowledge of sustainability and its implications to long term viability is limited and in some cases grossly inaccurate. Consequently, this research has identified there is an imperative requirement for investigation into appropriate, accurate knowledge development in the field of sustainability for the valuation profession.

Researching the relationship between physical activity and motherhood in older Somali women

This thesis explores participation in physical activity by a group of older Somali women living in Melbourne, Australia. First, it describes the methodological challenges faced by a white researcher conducting cross-cultural research; second, it explores how participants' experiences of motherhood and physical activity in Somalia and Australia influence their participation in physical activity. This research contributes data to address the scarcity of knowledge and research on physical activity amongst older African and Muslim women.