28 research outputs found
Modelling biodiversity trends in the montado (wood pasture) landscapes of the Alentejo, Portugal
Abstract
Context
Montados are dynamic agroforestry systems of southern Portugal, with high economic and ecological values. Changes in land use and cover have important implications for landscape-level biodiversity and its conservation.
Objectives
Our objectives were to evaluate the biodiversity values and trends in a montado system in the Alentejo, Portugal so as to inform landscape level conservation approaches. In doing so, we aimed to develop a replicable and robust approach drawing together field observation, expert opinion, and remote sensing to produce predictions relevant to land management planning.
Methods
Field sampling and subsequent analysis of data on the birds, butterflies and plants in eight distinct land covers allowed the identification of two principal habitat groupings of importance: ‘montado mosaic’ and ‘shrubland’. Morphological spatial pattern analysis was performed on Landsat-derived GIS habitat layers for 1984 and 2009, generating maps and statistics for change in the different landscape functional classes. In addition, we demonstrated how the modelling of ecotones between open and closed biomes can identify the preferred hunting grounds of the threatened Iberian lynx and black vulture, flagship species whose conservation provides benefits to the area’s wider biodiversity values.
Results
Total and core area of montado mosaics and shrubland increased over the 25 year period, whilst the amount of habitat connectivity declined in the case of shrubland. Considerable local variation in these trends highlighted targetable areas for conservation action (e.g. through agri-environment spending).
Conclusions
A rapid and robust approach was demonstrated, with potentially wider utility for biodiversity assessment and planning
Methods of connecting primary care patients with community-based physical activity opportunities:A realist scoping review
Funding: NHS Fife Endowment Fund (Grant Number(s): FIF142).Deemed a global public health problem by the World Health Organization, physical inactivity is estimated to be responsible for one in six deaths in the United Kingdom (UK) and to cost the nation's economy £7.4 billion per year. A response to the problem receiving increasing attention is connecting primary care patients with community-based physical activity opportunities. We aimed to explore what is known about the effectiveness of different methods of connecting primary care patients with community-based physical activity opportunities in the United Kingdom by answering three research questions: 1) What methods of connection from primary care to community-based physical activity opportunities have been evaluated?; 2) What processes of physical activity promotion incorporating such methods of connection are (or are not) effective or acceptable, for whom, to what extent and under what circumstances; 3) How and why are (or are not) those processes effective or acceptable? We conducted a realist scoping review in which we searched Cochrane, Medline, PsycNET, Google Advanced Search, National Health Service (NHS) Evidence and NHS Health Scotland from inception until August 2020. We identified that five methods of connection from primary care to community-based physical activity opportunities had been evaluated. These were embedded in 15 processes of physical activity promotion, involving patient identification and behaviour change strategy delivery, as well as connection. In the contexts in which they were implemented, four of those processes had strong positive findings, three had moderately positive findings and eight had negative findings. The underlying theories of change were highly supported for three processes, supported to an extent for four and refuted for eight processes. Comparisons of the processes and their theories of change revealed several indications helpful for future development of effective processes. Our review also highlighted the limited evidence base in the area and the resulting need for well-designed theory-based evaluations.Publisher PDFPeer reviewe
What influences people’s responses to public health messages for managing risks and preventing infectious diseases? A rapid systematic review of the evidence and recommendations
Background: Individual behaviour changes, such as hand hygiene and physical distancing, are required on a population scale to reduce transmission of infectious diseases such as COVID-19. However, little is known about effective methods of communicating risk reducing information, and how populations might respond.
Objective: To synthesise evidence relating to what (1) characterises effective public health messages for managing risk and preventing infectious disease and (2) influences people’s responses to messages.
Design: A rapid systematic review was conducted. Protocol is published on Prospero CRD42020188704.
Data sources: Electronic databases were searched: Ovid Medline, Ovid PsycINFO and Healthevidence. org, and grey literature (PsyarXiv, OSF Preprints) up to May 2020.
Study selection: All study designs that (1) evaluated public health messaging interventions targeted at adults and (2) concerned a communicable disease spread via primary route of transmission of respiratory and/or touch were included. Outcomes included preventative behaviours, perceptions/awareness and intentions. Non-English language papers were excluded.
Synthesis: Due to high heterogeneity studies were synthesised narratively focusing on determinants of intentions in the absence of measured adherence/ preventative behaviours. Themes were developed independently by two researchers and discussed within team to reach consensus. Recommendations were translated from narrative synthesis to provide evidence-based methods in providing effective messaging.
Results: Sixty-eight eligible papers were identified. Characteristics of effective messaging include delivery by credible sources, community engagement, increasing awareness/knowledge, mapping to stage of epidemic/ pandemic. To influence intent effectively, public health messages need to be acceptable, increase understanding/perceptions of health threat and perceived susceptibility.
Discussion: There are four key recommendations: (1) engage communities in development of messaging, (2) address uncertainty immediately and with transparency, (3) focus on unifying messages from sources and (4) frame messages aimed at increasing understanding, social responsibility and personal control. Embedding principles of behavioural science into public health messaging is an important step towards more effective health-risk communication during epidemics/pandemics
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Satellite remote sensing of land cover change in a mixed agro-silvo-pastoral landscape in the Alentejo, Portugal
Mixed agro-silvo-pastoral landscapes are typically of significant natural, economic and cultural value. The montado (wood pasture) dominated systems of southern Portugal are a prime example, and experience high rates of land cover change. Tracking these changes is of importance for landscape level conservation and management. Whilst satellite remote sensing is the most realistic approach at large spatial scales, heterogeneous landscapes can present challenges to the accurate classification of land cover and its change.
In this investigation we demonstrate a novel approach to the investigation of land cover change over a 25 year period (1984-2009) in an area of importance for the conservation of the Iberian lynx, Black vulture, and other threatened biodiversity in south-east Alentejo, Portugal. We apply a Tasselled Cap Transformation (TCT) to Landsat imagery from these two years, and then Change Vector Analysis (CVA) on the transformed data to highlight areas of vegetation gain and loss during the intervening period. Using a 2009 land cover classification, and a set of rules based on these vegetation changes, we then predict the land change over the 25 year period focussing on predominant classes of vegetation physiognomy. The results are discussed in terms of probable drivers, as well as implications for biodiversity and other landscape values
A report on the availability of land for residential purposes in the city of Rockhampton
"This study aims to systematically determine the availability of land in the City of Rockhampton suitable for sub division for residential purposes and to estimate the year in which the local authority will find itself without any further land suitable for future development."--p. 1a
Custom generation in the Central Queensland central place hierarchy: The Biloela retail survey
"In September 1978 the Biloela Promotion Bureau funded a study of shopping behaviour of local residents. Thirteen students spent one week in the field at Biloela interviewing shop-keepers, noting the prices and variety of goods offered for sale and interviewing 186 local residents about their shopping habits...The aim of the study was to determine the shopping behaviour of local residents, to document the role of larger centres like Rockhampton, Gladstone and Brisbane in diverting retail expenditure from local shops and to advise local storekeepers how to improve their services to attract more custom."--p. 1
A report on the availability of land for residential purposes in the city of Rockhampton
"This study aims to systematically determine the availability of land in the City of Rockhampton suitable for sub division for residential purposes and to estimate the year in which the local authority will find itself without any further land suitable for future development."--p. 1a