Assessing Climate Change Impacts on Managed Grassland Production Using a Bio-Economic Modelling Approach

We develop a bio-economic model that combines the process based grassland simulation model PROGRASS with an economic decision model, which accounts for income risks and yield quality, to derive optimal nitrogen application rates in a grass-clover system in Switzerland. The model is applied to current as well as to future climate conditions. Though nitrogen increases yields, it also leads to a higher variance and more negative skewness of yields, i.e. is risk increasing. Accounting for farmers’ risk aversion thus reduces optimal nitrogen use. We find climate change, ceteris paribus, to lead to higher grassland yields but also to increase the variability of yields substantially. Optimal adaptation responses to climate change were found to be sensitive to the consideration of yield quality and the level of farmer’s risk aversion

Greenhouse gas mitigation and offset options for suckler cow farms: an economic comparison for the Swiss case

We assessed the economic suitability of 4 greenhouse gas (GHG) mitigation options and one GHG offset option for an improvement of the GHG balance of a representative Swiss suckler cow farm housing 35 Livestock units and cultivating 25ha grassland. GHG emissions per kilogram meat in the economic optimum differ between the production systems and range from 18 to 21.9kg CO2-eq./kg meat. Only GHG offset by agroforestry systems showed the potential to significantly reduce these emissions. Depending on the production system agroforestry systems could reduce net GHG emissions by 66% to 7.3kg CO2-eq./kg meat in the most intensive system and by 100% in the most extensive system. In this calculation a carbon sequestration rate of 8t CO2/ha/year was assumed. The potential of a combination of the addition of lipids to the diet, a cover of the slurry tank and the application of nitrification inhibitors only had the potential to reduce GHG emissions by 12% thereby marginal abatement costs are increasing much faster than for agroforestry systems. A reduction of the GHG emissions to 7.5kg CO2-eq./kg meat—possible with agroforestry only—raised costs between 0.03CHF/kg meat and 0.38CHF/kg meat depending on the production system and the state of the system before the reduction. If GHG emissions were reduced maximally average costs ranged between 0.37CHF/kg meat, if agroforestry had the potential to reduce net GHG emissions to 0kg CO2-eq., to 1.17CHF/kg meat if also other options had to be applie

A New System for Automatic Radiotracking of Small Mammals

We developed a radiotracking system for automatic and continuous data collection, which allows the radiotracking of several animals at the same time. Based on a system controller, 3 fixed antennas, and small-size radiotransmitters (<2 g, 14 by 12 by 4 mm), the system has the capacity to record several individuals continuously at intervals of <5 min. Antennas, positioned at fixed points in the field, forward the signals from tagged animals to the system controller, where data are collected. The coordinates of the individual's locations are calculated through triangulation on the basis of the angles of incidence from the transmitter signal to each antenna. Transmitters are individually identified by the chronological sequence of their signals. Field tests with Microtus arvalis show the utility of the new technique and possibilities for the syste

Modeling Social-Ecological Feedback Effects in the Implementation of Payments for Environmental Services in Pasture-Woodlands

International audienceAn effective implementation of payment for environmental services (PES) must allow for complex interactions of coupled social-ecological systems. We present an integrative study of the pasture-woodland landscape of the Swiss Jura Mountains combining methods from natural and social sciences to explore feedback between vegetation dynamics on paddock level, farm-based decision making, and policy decisions on the national political level. Our modeling results show that concomitant climatic and socioeconomic changes advance the loss of open grassland in silvopastoral landscapes. This would, in the longer term, deteriorate the historical wooded pastures in the region, which fulfill important functions for biodiversity and are widely considered as landscapes that deserve protection. Payment for environmental services could counteract this development while respecting historical land-use and ecological boundary conditions. The assessed policy feedback process reveals that current policy processes may hinder the implementation of PES, even though a payment for the upkeep of wooded pasture would generally enjoy the backing of the relevant policy network. To effectively support the upkeep of the wooded pastures in the Jura, concomitant policy changes, such as market deregulation, must also be taken into account

Kleinsäuger mit Haarproben zuverlässig bestimmen

Um das Vorkommen der Schweizer Kleinsäugetiere zu untersuchen, müssen diese lebend gefangen und bestimmt werden. Gewisse ähnliche Arten lassen sich jedoch morphologisch nicht genau unterscheiden. Für eine sichere Artbestimmung ist deshalb bei einigen Arten eine DNA-Analyse unumgänglich. Die Entnahme von Haarproben ermöglicht eine für das Tier schnelle und schonende Gewinnung von DNA

Creating the future together: Toward a framework for research synthesis in entrepreneurship

To develop a body of evidence-based knowledge on entrepreneurship, findings and contributions from the positivist, narrative and design research traditions in this area need to be combined. Therefore, a framework for research synthesis in terms of social mechanisms, contextual conditions and outcome patterns is developed in this paper. Subsequently, a synthesis of the existing body of research findings on entrepreneurial opportunities serves to illustrate how this framework can be applied and provides results that inform entrepreneurial action. Finally, we discuss how this synthetic approach serves to systematically connect the fragmented landscape of entrepreneurship research, and thus gradually build a cumulative and evidence-based body of knowledge on entrepreneurship

How to detect fluctuating order in the high-temperature superconductors

We discuss fluctuating order in a quantum disordered phase proximate to a quantum critical point, with particular emphasis on fluctuating stripe order. Optimal strategies for extracting information concerning such local order from experiments are derived with emphasis on neutron scattering and scanning tunneling microscopy. These ideas are tested by application to two model systems - the exactly solvable one dimensional electron gas with an impurity, and a weakly-interacting 2D electron gas. We extensively review experiments on the cuprate high-temperature superconductors which can be analyzed using these strategies. We adduce evidence that stripe correlations are widespread in the cuprates. Finally, we compare and contrast the advantages of two limiting perspectives on the high-temperature superconductor: weak coupling, in which correlation effects are treated as a perturbation on an underlying metallic (although renormalized) Fermi liquid state, and strong coupling, in which the magnetism is associated with well defined localized spins, and stripes are viewed as a form of micro-phase separation. We present quantitative indicators that the latter view better accounts for the observed stripe phenomena in the cuprates.Comment: 43 pages, 11 figures, submitted to RMP; extensively revised and greatly improved text; one new figure, one new section, two new appendices and more reference

Governance and well-being in academia: Negative consequences of applying an agency theory logic in higher education

This study examines the relationship between alternative university governance practices and staff well-being. Specifically, it investigates how people in academic and professional services roles are managed and how various governance mechanisms such as the use of performance measures and targets influence their sense of vitality and stress. Drawing from agency theory and stewardship theory research, the authors expected universities to align their governance practices to the nature of their employment roles to enhance well-being. Based on data collected in the UK, the authors find that, for some academic roles, there is a misalignment between the responsibilities and job demands and the way institutions govern people in such roles, which is shown to affect their well-being. These results suggest that well-being responses to governance mechanisms change, depending on the role an employee performs and the position he or she occupies. Interestingly, these data suggest that the governance and well-being experiences of academic leaders are more closely aligned with those of professional service leaders than with those of academics without leadership positions. Taking these data together, this investigation notes several shortcomings in the internal governance practices of higher-education institutions that can have unexpected consequences and require close attention and further research

A qualitative study of the knowledge-brokering role of middle-level managers in service innovation: managing the translation gap in patient safety for older persons’ care

Background: Brokering of evidence into service delivery is crucial for patient safety. We study knowledge brokering by ‘hybrid’ middle-level managers (H-MLMs), who hold responsibility for clinical service delivery as well as a managerial role, in the context of falls, medication management and transition, in care of older people. Objectives: Generate insight into processes and structures for brokering of patient safety knowledge (PSK) by H-MLMs. Design: We utilise mixed methods: semistructured interviews, social network analysis, observation, documentary analysis, tracer studies and focus groups. Setting: NHS East and NHS West Midlands. Participants: One hundred and twenty-seven H-MLMs, senior managers and professionals, in three hospitals, and external producers of PSK. Main outcome measures: Which H-MLMs broker what PSK, and why? (1) How do H-MLMs broker PSK? (2) What are contextual features for H-MLM knowledge brokering? (3) How can H-MLMs be enabled to broker PSK more effectively in older persons’ care? Results: Health-care organisations fail to leverage PSK for service improvement. Attempts by H-MLMs to broker PSK downwards or upwards are framed by policy directives and professional/managerial hierarchy. External performance targets and incentives compel H-MLMs in clinical governance to focus upon compliance. This diverts attention from pulling knowledge downwards, or upwards, for service improvement. Lower-status H-MLMs, closer to service delivery, struggle to push endogenous knowledge upwards, because they lack professional and managerial legitimacy. There is a difference between how PSK is brokered within ranks of nurses and doctors, due to differences in hierarchal characteristics. Rather than a ‘broker chain’ upwards and downwards, a ‘broken chain’ ensues, which constrains learning and service improvement. Conclusions: Clinical governance is decoupled from service delivery. Brokering knowledge for service improvement is a ‘peopled’ activity in which H-MLMs are central. Intervention needs to mediate interprofessional and intraprofessional hierarchy, which, combined with compliance pressures, engender a ‘broken’ chain for applying PSK for service improvement, rather than a ‘brokering’ chain. Lower-status H-MLMs need to have their legitimacy and disposition enhanced to broker knowledge for service improvement. More informal ‘social mechanisms’ are required to complement clinical governance for development of a brokering chain. More research is needed to (1) examine why some H-MLMs are more disposed and able than others to broker PSK for service improvement, and (2) understand how knowledge brokering might be enhanced so that exogenous and endogenous knowledge is better fused for service improvement