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Do animals have cognitive maps? Do they possess knowledge? Do they plan for the future? Do they understand that others have mental lives of their own? This volume provides a state-of-the-art assessment of animal cognition, with experts from psychology, neuroscience, philosophy, ecology, and evolutionary biology addressing these questions in an integrative fashion. It summarizes the latest research, identifies areas where consensus has been reached, and takes on current controversies. Over the last thirty years, the field has shifted from the collection of anecdotes and the pursuit of the subjective experience of animals to a rigorous, hypothesis-driven experimental approach. Taking a skeptical stance, this volume stresses the notion that in many cases relatively simple rules may account for rather complex and flexible behaviors. The book critically evaluates current concepts and puts a strong focus on the psychological mechanisms that underpin animal behavior. It offers comparative analyses that reveal common principles as well as adaptations that evolved in particular species in response to specific selective pressures. It assesses experimental approaches to the study of animal navigation, decision making, social cognition, and communication and suggests directions for future research. The book promotes a research program that seeks to understand animals' cognitive abilities and behavioral routines as individuals and as members of social groups.

The role of vitamin D in supporting the growth and maintenance of the skeleton is robust; with recent research also suggesting a beneficial link between vitamin D and other non-skeletal health outcomes, including immune function, cardiovascular health and cancer. Despite this, vitamin D deficiency remains a global public health issue, with a renewed focus in the UK following the publication of Public Health England's new Dietary Vitamin D Requirements. Natural sources of vitamin D (dietary and UVB exposure) are limited, and thus mechanisms are needed to allow individuals to achieve the new dietary recommendations. Mandatory or voluntary vitamin D food fortification may be one of the mechanisms to increase dietary vitamin D intakes and subsequently improve vitamin D status. However, for the food industry and public to make informed decisions, clarity is needed as to whether vitamins D2 and D3 are equally effective at raising total 25-hydroxyvitamin D (25(OH)D) concentrations as the evidence thus far is inconsistent. This review summarises the evidence to date behind the comparative efficacy of vitamins D2 and D3 at raising 25(OH)D concentrations, and the potential role of vitamin D food fortification as a public health policy to support attainment of dietary recommendations in the UK. The comparative efficacy of vitamins D2 and D3 has been investigated in several intervention trials, with most indicating that vitamin D3 is more effective at raising 25(OH)D concentrations. However, flaws in study designs (predominantly under powering) mean there remains a need for a large, robust randomised-controlled trial to provide conclusive evidence, which the future publication of the D2–D3 Study should provide (BBSRC DRINC funded: BB/I006192/1). This review also highlights outstanding questions and gaps in the research that need to be addressed to ensure the most efficacious and safe vitamin D food fortification practices are put in place. This further research, alongside cost, availability and ethical considerations (vitamin D3 is not suitable for vegans), will be instrumental in supporting government, decision-makers, industry and consumers in making informed choices about potential future vitamin D policy and practice.

Do voters react to shocks that are beyond the control of politicians? We consider the case of the assassination of a senior politician in India, in the middle of an election. We find that Congress(I), the party of the assassinated leader, gained significantly from this event through increased vote shares and improved likelihood of victory. Sympathy towards Congress(I) and changed perceptions about governing abilities of the contesting parties in the post-assassination environment played crucial roles in determining the final outcomes of the election. Our results imply that even in environments where voters are expected to make their decisions based on prior performance of parties, an unanticipated, random, exogenous event can affect voting behaviour.

With the ever-progressing urbanization of human society comes lingering public issues, primarily those related to human health and the need to provide environments where the population can be routinely frequent. Also, the effects of climatic changes tend to aggravate such public health issues, mainly respiratory and cardiac symptoms. As such, analyzing and studying those environments can be crucial for public administrations in the decision-making processes. One such method of analysis involves using an air enthalpy index to profile and provide a picture of stress situations, helping expedite preventive measures and hospital logistics. With that, this study used the enthalpy index as a tool to create a picture of the effect of seasonality on chronic health issues, such as respiratory and cardiac symptoms, for the city of Botucatu, a city with a characteristic tropical altitude climate. It was possible to determine that the air enthalpy profile is consistent throughout the year near the estimated thermal comfort boundaries, with peaks outside in hotter months. The hospitalizations tend to be more numerous during the transition from hot to cold seasons. Simple correlation analysis, along with a t test, provided further insight into the issue, showing strong correlation for pneumonia with the maximum enthalpy variation, which can relate to the heat amount variation in a given location. Also, an agreement was observed between enthalpy and an established thermal sensation index, the heat index, meaning that air enthalpy can be a reliable and simple index for environmental thermal comfort analysis. That being said, further studies are necessary to confirm these findings, considering a longer time frame, more diverse hospitalization data, and other meteorological parameters, like wind speed and precipitation.

A stream of sessions at this year's BSAVA congress considered some of the ‘big issues’ currently facing the veterinary profession. Among them was ‘Just because we can, does it mean we should?’, which explored ethical and other questions surrounding advances in veterinary medicine, surgery and practice. Discussed at a press conference as well as in a mainstream congress session (see p 401), this subject raised a number of points for debate. Kathryn Clark reports

Encouraging farmers to change their behaviour is seen as key to improving animal health and disease control. However, a debate at this year's BVA Congress suggested that it is not just farmers whose mindsets need to change. Kathryn Clark reports

Informed consent is an essential part of any contract and, in veterinary practice, it is vital that the client understands the range of treatment options, estimated costs and the significance and risks of any procedure that a veterinary surgeon may carry out. But what does informed consent actually mean, and how is this achieved in day-to-day practice? Georgina Mills reports from a panel discussion of this topic, held during the BSAVA congress last month

The system of multilateral environmental agreements (MEAs) comprises hundreds of conventions and protocols designed to protect the environment. Institutional interaction within the MEA system raises issues of environmental policy integration (EPI), i.e. balancing different environmental objectives and considerations. Mainstream proposals for enhancing EPI in environmental governance build upon the assumption that environmental institutions are fragmented. However, recent research reveals that the MEA system has been defragmenting over the years such that EPI is less a problem of institutional fragmentation than of effective management of institutional interplay. This paper examines the factors affecting EPI among MEAs by looking at experiences in the cluster of biodiversity-related multilateral agreements. The analysis is based on a series of interviews with MEA secretariat officials and international experts conducted between September 2011 and January 2012. The paper identifies institutional, political and cognitive barriers constraining interplay management efforts. While some have proposed regulatory changes in the cluster, national-level co-ordination appears to be the best way to advance EPI.

Objective The quality of reporting in congress abstracts is likely to influence clinical decision-making. Hypothesis The quality of reporting in sports injury prevention abstracts has increased over the last 3 years, as did the number of randomised controlled trials (RCT). Methods 154 abstracts from the 2005 and 186 abstracts from 2008 World Conferences on Sports Injury Prevention in Norway were analysed. Main outcome measures Scores of 17 Consolidated Standards of Reporting Trials (CONSORT) criteria for RCT, or 22 Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) criteria for observational studies were determined. Results Improvement in reporting was evident in RCT (CONSORT score 5.8±0.9 vs 8.6±2.9, p=0.001, CI −4.29 to −1.43) as well as for observational studies (STROBE score 7.9±1.6 vs 9.9±1.7, p<0.001, CI −2.34 to −1.53) between 2005 and 2008. RCTs were published in 9.1% in 2005 versus 10.2% in 2008 (p=0.727). RCT demonstrated a significant improvement in main outcome (0% vs 57.9%, p<0.001). For observational studies, a significant improvement was reported in rationale (53.5% vs 98.2%, p<0.001), objectives (82.2% vs 95.1%, p=0.012), study design (25.2% vs 65%, p<0.001), setting (43.7% vs 65.6%, p=0.002), variables (20.7% vs 74.2%, p<0.001), participants (0.7% vs 10.4%, p=0.001) and funding (0% vs 5.5%, p=0.006). Conclusion While the percentage of published RCTs in abstracts at the World Congress of Sports Injury Prevention remained unchanged, an improvement in reporting of abstracts was evident from 2005 to 2008, as determined by CONSORT/STROBE criteria. However, substantial and comprehensive use of the CONSORT and STROBE criteria might further increase the quality of reporting of sports injury conference abstracts in the future.

Development of effective indicators is indispensable for countries and societies to monitor effects of their actions on biodiversity, as is recognized in decision VI/26 of the Convention on Biological Diversity. Good indicators would ideally be scalable, at least for the different scales that characterize biodiversity patterns and process. Existing indicators are mostly global in scope, and often based on secondary information, such as classifications of endangered species, rather than on primary data. We propose a complementary approach, based on the increased availability of raw data about occurrences of species, cutting-edge modeling techniques for estimating distributional areas, and land-use information based on remotely sensed data to allow estimation of rates of range loss for species affected by land-use conversion. This method can be implemented by developing countries, given increasing availability of data and the open and well-documented nature of the techniques required.