Conservation management and diets of Powerful Owls (Ninox strenua) in outer urban Melbourne, Australia

The Powerful Owl Ninox strenua is Australia’s largest owl, and is mainly found east of the Great Dividing Range on the mainland in tall-open forests. The species is considered rare, both nationally and in the State of Victoria; and threatened in the Greater Melbourne area. Recovery plans for the future conservation management of N. strenua are being prepared in 2 states.

Historically, Powerful Owls have been thought to require large homes ranges (about 1000 ha per pair) in suitable old-growth forest, which provides nest hollows for the owls and their arboreal marsupial prey. Recent research, however, has found N. strenua may be more numerous and breed more successfully in a wider range of habitats than previously believed. In particular, the birds have been found living in forests and woodlands within the greater metropolitan areas of cities. The most extreme case is where a nest tree has been found within 800m of urban settlement and 6km from the centre of Brisbane.

In this paper we report on the diet, habitat use, and conservation management by a number of breeding pairs of owls in outer urban Melbourne. Study sites range from a relatively undisturbed rainforest habitat 80km from central Melbourne, through dry sclerophyll, eucalyptus-dominated open forest with some disturbance to a site 8km from central Melbourne in highly disturbed urban parkland.

Diets of the families of owls were determined by analyzing remains in regurgitated pellets. The data confirm that arboreal marsupials constitute the major prey items, especially the Common Ringtail Possum Pseudocheirus peregrinus. There were differences in diets depending on the availability of prey species, which suggest a level of opportunism not previously suspected. Our study is also the first to confirm the owls capture adult Common Brushtail Possums Trichosurus vulpecula (15% of pellets containing the remains of this large opossum have bones of mature adults at 1 site) and thus take prey up to two and a half times their own weight. As well our data suggest Powerful Owls are not restricted to hollow-dwelling prey, as in some sites the marsupials rested during the day either in leafy nests called dreys (P. peregrinus) or in house roofs (T. vulpecula).

In the most heavily disturbed sites, breeding success has been reduced, and we have evidence that in one particular year the young were eaten by one of the parents. This followed construction of a bicycle track under the nest during the breeding season. Recommendations are made for the future conservation and habitat management of Powerful Owls in the Yarra Valley corridor.

Optimising the impact of education for community pharmacy in Australia

Aims & rationale/Objectives : This paper examines the extent to which different models of community pharmacist continuing education (CE) are evidence-based. It also describes the impact of varying education models on attendance and attitudes within the profession.

Methods : A literature review was conducted to establish principles that should be applied to health professional education, and pharmacy in particular. Interviews were conducted with representatives from four organisations involved in the education of pharmacists to understand their current models. Four focus groups were held with community pharmacists to understand their educational experiences and attitudes.

Principal findings : The purpose of CE is to improve the clinical performance of health practitioners. Literature examining outcomes from CE underlines the importance of adult learning principles. Focus groups supported the view that consideration of these principles is beneficial. These principles, including problem-based learning, clinical applicability, relevance, and active involvement in the learning process, are currently incorporated into educational models to varying extents. Access problems such as cost, distance, insufficient flexibility in delivery, and poor promotion of educational opportunities prevent many pharmacists from taking responsibility for their own learning. A lack of appropriate assessment by some registering authorities is counterproductive to achieving CE outcomes in clinical practice. Participants already engaged in continuing professional development (CPD) agreed with the principles of its introduction.

Discussion : Optimising outcomes from CE requires considerable input from numerous stakeholders. The recent introduction of mandatory pharmacist CPD across Australia should encourage an individual focus on learning outcomes. Focus group participants are likely to be education enthusiasts and may not represent the views of the entire profession.

Implications : This study identifies the need for a system-wide approach for achieving outcomes from CE. It is therefore advisable that a coordinated strategy be developed by all stakeholders for education delivery so as to optimise the impact of CE.

IFIP TC3/WG3.6 : Quality education @ a distance : IFIP TC3/WG3.6 Working Conference on Quality Education @ a Distance, February 3-6, 2003, Geelong, Australia

This work considers several aspects of providing quality education at a distance - quality of systems that support online learning, quality support infrastructure, quality of technical access and support, materials distribution. Issues in each of these areas are considered.