2 resultados para Light limited

em Deakin Research Online - Australia


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Urbanisation is increasing rapidly, impacting on a broad range of species. The proliferation of electric light has transformed the night time environment; however, our understanding on the effects of artificial night lighting on fauna, including nocturnal birds, is extremely limited. The aim ofthis research was to determine whether artificial night light affected the abundance of nocturnal birds. Spotlighting surveys were undertaken in Research Park, Melbourne, Victoria, along three 300 m transects. Each transect was surveyed five times during three light treatments: when lights were on, 20 minutes after lights were turned off and when lights were absent, over a period often nights. A total of 123 nocturnal birds was detected during survey nights. Two species were recorded - the Southern Boobook Ninox novaeseelandiae and the Tawny Frogmouth Podargus strigoides. The Tawny Frogmouth was detected along all three transects (n=121); however, the Southern Boobook was detected along one transect only (n=2). None of the light treatments had a significant effect on bird abundance. Neither did location, habitat or the combined effects of light treatments, location and habitat. The results of this research will contribute to a growing body of knowledge and support future conservation activities for species in areas undergoing urbanisation. {The Victorian Naturalist 127 (5) 2010, 192-195).

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Purpose The paper aims to explore the beliefs of doctors in leadership roles of the concept of "the dark side", using data collected from interviews carried out with 45 doctors in medical leadership roles across Australia. The paper looks at the beliefs from the perspectives of doctors who are already in leadership roles themselves; to identify potential barriers they might have encountered and to arrive at better-informed strategies to engage more doctors in the leadership of the Australian health system. The research question is: "What are the beliefs of medical leaders that form the key themes or dimensions of the negative perception of the 'dark side'?". Design/methodology/approach The paper analysed data from two similar qualitative studies examining medical leadership and engagement in Australia by the same author, in collaboration with other researchers, which used in-depth semi-structured interviews with 45 purposively sampled senior medical leaders in leadership roles across Australia in health services, private and public hospitals, professional associations and health departments. The data were analysed using deductive and inductive approaches through a coding framework based on the interview data and literature review, with all sections of coded data grouped into themes. Findings Medical leaders had four key beliefs about the "dark side" as perceived through the eyes of their own past clinical experience and/or their clinical colleagues. These four beliefs or dimensions of the negative perception colloquially known as "the dark side" are the belief that they lack both managerial and clinical credibility, they have confused identities, they may be in conflict with clinicians, their clinical colleagues lack insight into the complexities of medical leadership and, as a result, doctors are actively discouraged from making the transition from clinical practice to medical leadership roles in the first place. Research limitations/implications This research was conducted within the Western developed-nation setting of Australia and only involved interviews with doctors in medical leadership roles. The findings are therefore limited to the doctors' own perceptions of themselves based on their past experiences and beliefs. Future research involving doctors who have not chosen to transition to leadership roles, or other health practitioners in other settings, may provide a broader perspective. Also, this research was exploratory and descriptive in nature using qualitative methods, and quantitative research can be carried out in the future to extend this research for statistical generalisation. Practical implications The paper includes implications for health organisations, training providers, medical employers and health departments and describes a multi-prong strategy to address this important issue. Originality/value This paper fulfils an identified need to study the concept of "moving to the dark side" as a negative perception of medical leadership and contributes to the evidence in this under-researched area. This paper has used data from two similar studies, combined together for the first time, with new analysis and coding, looking at the concept of the "dark side" to discover new emergent findings.