Dugong distribution and abundance on the urban coast of Queensland: a basis for management. Final Report to Marine and Tropical Research Facility Interim Projects 2005-6

[Excerpt] The transitional funding from MTSRF plus supplementary funding from CRC Reef and CRC Torres Strait enabled the first survey of the entire urban coast of Queensland for dugongs to be carried out in November 2005. In addition, a reference block in Torres Strait was surveyed to provide a context for the survey of the urban coast. The results of the 2005 surveys are being presented to Traditional Owners and stakeholders at a series of workshops. The results of the 2005 survey have been analyzed in the context of results of previous surveys of various parts of this coast since the mid 1980s using comparable techniques. The results of the 20 year time series of surveys suggest that dugong numbers are now stable at the scale of the entire urban coast of Queensland although populations fluctuate at the level of individual survey blocks (usually bays), probably largely due to natural changes in seagrass habitats. The results of the surveys indicate that it will be important to: (1) develop cross-jurisdictional objectives for the management of dugongs at the scale of the entire region, and (2) co-ordinate management at both culturally and ecologically relevant scales

Distribution and Abundance of the Dugong in Gulf of Carpentaria Waters: a basis for cross-jurisdictional conservation planning and management

[Extract] This survey provides the first synopsis of the distribution and abundance of the dugong in the Gulf of Carpentaria. The results of previous surveys of parts of this region in both Queensland and the Northern Territory have been difficult to interpret because of the potentially confounding influences of unpredictable dugong movements between areas within the region

A Novel Method for Using Small Unoccupied Aerial Vehicles to Survey Wildlife Species and Model Their Density Distribution

There is growing interest from research and conservation groups in the potential for using small unoccupied aerial vehicles (UAVs; <2 kg) to conduct wildlife surveys because they are affordable, easy to use, readily available and reliable. However, limitations such as short flight endurance, and in many situations, aviation regulations, have constrained the use of small UAVs in survey applications. Thus, there is a need to refine survey methods adapted to small UAVs that conform to standard operations within aviation law. We developed a novel survey approach based on a grid sampling design using two multirotor UAVs (Phantom 4 Pros) flying simultaneously, within visual line of sight, from our vessel base-station. We used this approach to assess the fine-scale distribution and abundance of dugongs (Dugong dugon) in the remote waters of the Pilbara, Western Australia during three field seasons across 2 years. We surveyed 64 non-overlapping survey cells in random order one or more times and obtained complete image coverage of each surveyed cell of our 31 km2 survey area. Our sampling design maximizes sampling effort while limiting survey time by surveying four cells, two at a time, from one location. Overall, we conducted 240 flights with up to 17 flights per day (mean = 14 flights per day) and could obtain complete coverage of up to 11.36 km2per day. A total of 149 dugongs were sighted within the 50,482 images which we manually reviewed. Spatially-explicit models of dugong density distribution (corrected for availability and perception bias) were produced using general additive models to identify areas more or less used by dugongs (range of corrected dugong densities across all field season = 0.002–1.79 dugongs per 0.04 km2). Dugong abundance estimates ranged from 47 individuals in June 2019 (CV = 0.17) to 103 individuals in May 2018 (CV = 0.36). Our method, which proved convincing in a real-word application by its feasibility, ease of implementation, and achievable surface coverage has the potential to be used in a wide range of applications from community-based local-scale surveys, to long-term repeated/intensive surveys, and impact assessments and environmental monitoring studies

Of Student Teachers and Avatars: Working Towards an Effective Model for Geographically Distributed Learning Communities of Pre-Service Educators Using Virtual Worlds.

With greater distribution of learning communities through the expanding use of online and distance learning, researchers emphasize focus on the effective use of specific technologies on student preference and achievement. One such technology drawing significant interest in scholarly and practical circles is the use of Multi-User Virtual Environments (MUVE), with the more common environment being Second Life, a product of Linden Labs, This research project, having gone through a pilot stage and under current implementation, addresses preference and effectiveness through a mixed-method research endeavor, examining forming communities using Second Life’s environment for small group discussions and large group seminar presentations for pre-service student teachers in a teacher education program. Methods of data collection and analysis include survey comparative analysis (using Keller’s Instructional Materials Motivation Survey and Rovai’s Community Survey Instrument), observation, semi-structured interview and comparative analysis of achievement on a content-based assessment

Stakeholder identification and engagement in problem structuring interventions

© 2019 The Authors This paper addresses the under-researched issue of stakeholder identification and engagement in problem structuring interventions. A concise framework is proposed to aid critical reflection in the design and reporting of stakeholder identification and engagement. This is grounded in a critical-systemic epistemology, and is informed by social identity theory. We illustrate the utility of the framework with an example of a problem structuring workshop, which was part of a green innovation project on the development of a technology for the recovery of rare metals from steel slag. The workshop was initially going to be designed to surface stakeholder views on the technology itself. However, it became apparent that a range of other strategic issues concerning the future of the site were going to impact on decision making about the use of steel slag. It therefore became important to evolve the agenda for the problem structuring, and this is where the critical-systemic approach made a difference. It enabled the workshop to be reframed as a community-based event looking at how the former steelworks site could be developed for new purposes. Evaluation of this problem structuring intervention revealed significant stakeholder learning about the issues needing to be accounted for, and a range of possible options for the development of the steelworks site were explored. The paper ends with a discussion of the utility of social identity theory for understanding the processes and outcomes of the workshop, and reflections are provided on its implications for operational research practice more generally

Using Unoccupied Aerial Vehicles to estimate availability and group size error for aerial surveys of coastal dolphins

Aerial surveys are frequently used to estimate the abundance of marine mammals, but their accuracy is dependent upon obtaining a measure of the availability of animals to visual detection. Existing methods for characterizing availability have limitations and do not necessarily reflect true availability. Here, we present a method of using small, vessel-launched, multi-rotor Unoccupied Aerial Vehicles (UAVs, or drones) to collect video of dolphins to characterize availability and investigate error surrounding group size estimates. We collected over 20 h of aerial video of dive-surfacing behaviour across 32 encounters with Australian humpback dolphins Sousa sahulensis off north-western Australia. Mean surfacing and dive periods were 7.85 sec (se = 0.26) and 39.27 sec (se = 1.31) respectively. Dolphin encounters were split into 56 focal follows of consistent group composition to which example approaches to estimating availability were applied. Non-instantaneous availability estimates, assuming a 7 sec observation window, ranged between 0.22 and 0.88, with a mean availability of 0.46 (CV = 0.34). Availability tended to increase with increasing group size. We found a downward bias in group size estimation, with true group size typically one individual more than would have been estimated by a human observer during a standard aerial survey. The variability of availability estimates between focal follows highlights the importance of sampling across a variety of group sizes, compositions and environmental conditions. Through data re-sampling exercises, we explored the influence of sample size on availability estimates and their precision, with results providing an indication of target sample sizes to minimize bias in future research. We show that UAVs can provide an effective and relatively inexpensive method of characterizing dolphin availability with several advantages over existing approaches. The example estimates obtained for humpback dolphins are within the range of values obtained for other shallow-water, small cetaceans, and will directly inform a government-run program of aerial surveys in the region

Current issues in research communications: open access and institutional benefit - 2nd report to JISC, July 2010

This report looks at some of the drivers of interest in open access and the initiatives being taken in response. In particular it addresses the following questions: • Is Green or Gold open access likely to be the more cost effective for HE institutions in the long term? • What can open access offer to libraries struggling with increases in the cost of their subscriptions to academic journals? • How can open access contribute to institutions' preparation for the REF

Current issues in research communications: adding value and sharing research - 3rd report to JISC, December 2010

This report looks at the scope of current OA practice and the opportunities it offers for innovation in scholarly communication methods. Among the questions it discusses are: • Why are some researchers still reluctant to embrace open access? • What kinds of "added value" in scholarly communication can be attached to open access? • What is the significance for scholarly communications practice of the growth of social networking/reference management systems such as Mendeley

Reduction of Species Identification Errors in Surveys of Marine Wildlife Abundance Utilising Unoccupied Aerial Vehicles (UAVs)

The advent of unoccupied aerial vehicles (UAVs) has enhanced our capacity to survey wildlife abundance, yet new protocols are still required for collecting, processing, and analysing image-type observations. This paper presents a methodological approach to produce informative priors on species misidentification probabilities based on independent experiments. We performed focal follows of known dolphin species and distributed our imagery amongst 13 trained observers. Then, we investigated the effects of reviewer-related variables and image attributes on the accuracy of species identification and level of certainty in observations. In addition, we assessed the number of reviewers required to produce reliable identification using an agreement-based framework compared with the majority rule approach. Among-reviewer variation was an important predictor of identification accuracy, regardless of previous experience. Image resolution and sea state exhibited the most pronounced effects on the proportion of correct identifications and the reviewers’ mean level of confidence. Agreement-based identification resulted in substantial data losses but retained a broader range of image resolutions and sea states than the majority rule approach and produced considerably higher accuracy. Our findings suggest a strong dependency on reviewer-related variables and image attributes, which, unless considered, may compromise identification accuracy and produce unreliable estimators of abundance