Changing philosophies and tools for statistical inferences in behavioral ecology

Recent developments in ecological statistics have reached behavioral ecology, and an increasing number of studies now apply analytical tools that incorporate alternatives to the conventional null hypothesis testing based on significance levels. However, these approaches continue to receive mixed support in our field. Because our statistical choices can influence research design and the interpretation of data, there is a compelling case for reaching consensus on statistical philosophy and practice. Here, we provide a brief overview of the recently proposed approaches and open an online forum for future discussion (https://bestat.ecoinformatics.org/). From the perspective of practicing behavioral ecologists relying on either correlative or experimental data, we review the most relevant features of information theoretic approaches, Bayesian inference, and effect size statistics. We also discuss concerns about data quality, missing data, and repeatability. We emphasize the necessity of moving away from a heavy reliance on statistical significance while focusing attention on biological relevance and effect sizes, with the recognition that uncertainty is an inherent feature of biological data. Furthermore, we point to the importance of integrating previous knowledge in the current analysis, for which novel approaches offer a variety of tools. We note, however, that the drawbacks and benefits of these approaches have yet to be carefully examined in association with behavioral data. Therefore, we encourage a philosophical change in the interpretation of statistical outcomes, whereas we still retain a pluralistic perspective for making objective statistical choices given the uncertainties around different approaches in behavioral ecology. We provide recommendations on how these concepts could be made apparent in the presentation of statistical outputs in scientific papers.

Small classes 'a must' for unis

Smaller university tutorial class sizes are "a necessity" to increase student participation and maintain high learning standards, an international higher education expert says.

However, it is feared pressure on universities to make "efficiency savings" will prevent student-teacher ratios from improving from what local academics say is worse than in secondary school settings.

Migrancy, modernity and cultural sustainability

Australian Home Beautiful’s October 1960 Edition was devoted to the modernisation of the Victorian and Edwardian-era houses of Australian cities’ inner suburbs. One of the articles inside was entitled ‘Terrace Houses are Common Problem’, in which the magazine’s architectural consultant Leonard A. Bullen suggested; “With houses of this type, the multiplicity of embellishments that appear in almost every possible place is irritating to eyes that have become accustomed to the cleaner and less ornamented lines of modern houses” and “The first necessity is to get rid of the superfluous decoration and emphasise horizontal features.” (Bullen 1960, 31). The post-World War Two period was a time when Australia’s traditional imagining of itself was confronted by both popular modernity and a diversity of new migrant cultures and ways of thinking. In a contemporary environment that theoretically celebrates diversity and creates audiences for increasingly multiplying expressions of culture and history, perhaps it is time that 1950s and ‘60s alterations to old houses were re-imagined as intrinsic elements in Australia’s cultural landscape. This supposition will be discussed in relation to the United Nations’ 2002 Kanazawa Resolutions’ definition of the relationship between culture and sustainability as ‘dialogical coexistence’ (Nadarajah and Yamamoto 2007).