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Avian ecosystem services such as the suppression of pests are considered to be of high ecological and economic importance in a range of ecosystems, especially in tropical agroforestry. However, how bird predation success is related to the diversity and composition of the bird community, as well as local and landscape factors, is poorly understood. We quantified arthropod predation in relation to t
A prediction of a chemical property or activity is subject to uncertainty. Which type of uncertainties to consider, whether to account for them in a differentiated manner and with which methods, depends on the practical context. In chemical modelling, general guidance of the assessment of uncertainty is hindered by the high variety in underlying modelling algorithms, high-dimensionality problems,
We apply causal loop diagrams (CLD) to picture how complex societal scenarios can be understood in terms of interdependent drivers and mechanisms between actors from the public and private sectors respectively. And we show how un-sustainable scenarios can be understood in terms of insufficient balancing feed-back in the system. We apply the methodology to picture such imbalances as funda- mental d
Smallholder-dominated agricultural mosaic landscapes are highlighted as model production systems that deliver both economic and ecological goods in tropical agricultural landscapes, but trade-offs underlying current land-use dynamics are poorly known. Here, using the most comprehensive quantification of land-use change and associated bundles of ecosystem functions, services and economic benefits t
Tropical biodiversity is threatened by the expansion of oil-palm plantations. Reduced-impact farming systems such as agroforests, have been proposed to increase biodiversity and ecosystem functioning. In regions where oil-palm plantations already dominate the landscape, this increase can only be achieved through systematic ecological restoration. However, our knowledge about the underlying ecologi
Important intermediate ecosystem services (ES) such as crop pollination and biological control of pests, which underpin the final ES agricultural yields, are mediated by mobile organisms that depend on availability of habitat and its arrangement in the landscape. It has been suggested that landscape-scale management (LSM) of habitat in a multi-farm setting results in higher provisioning of such ES
Plant size has been hypothesized to be a major driver of biotic interactions. However, it is little understood how plant size affects plant mutualists vs. antagonists and the plant's resulting reproductive success. We established a common garden experiment covering an interspecific plant size gradient (from 10 to 130 cm height) across 21 annual Brassicaceae species, thereby standardizing features
Oil palm expansion results in a loss of biodiversity and associated ecosystem services. However, there are factors that influence the severity of these impacts and enhancing biodiversity within plantations is important. In the present study, we examined the role of epiphytes for supporting arthropod communities in oil palm plantations in Sumatra, Indonesia. We considered the effects of landscape c
Aim The impact of multiple stressors on biodiversity is one of the most pressing questions in ecology and biodiversity conservation. Here we critically assess how often and efficiently two main drivers of global change have been simultaneously integrated into research, with the aim of providing practical solutions for better integration in the future. We focus on the integration of climate change
Forest degradation, forest fires, and wildlife poaching have devastated biodiversity in Indonesia. To assess the impact of forest degradation and the potential for recovery, we used birds as a proxy for biodiversity and assessed density estimates (hereafter density) in the degraded lowland forest of Harapan Rainforest Ecosystem Restoration Concession (HRF) in Sumatra. In this study, a total of 149
We argue that the current system of agri-environment management in the European Common Agricultural Policy is ineffective at conserving biodiversity in part because it promotes fragmentation instead of collaboration of actors, thus hindering coordinated biodiversity management. Actor fragmentation is reinforced by the Common Agricultural Policy (CAP) in three ways: (1) through targeting individual
Uppsatsen handlar om det allmännas ansvar när myndigheter på olika sätt lämnar upplysningar och råd till enskilda. Historiskt har ett skadeståndsansvar för det allmännas offentliga verksamhet ansetts strida mot statssuveräniteten och principen ”the king can do no wrong”. Det var inte förrän vid skadeståndslagens (SkL) tillkomst år 1972 som det infördes ett ansvar när det allmänna orsakar skada i sThis thesis is about the Swedish public bodies liability when they provide information and advice to individuals. Historically, liability for negligent exercise of public authority has been considered to be contrary to public sovereignty and the principle 'the king can do no wrong'. It was not until the creation of the Tort Liability Act (TLA) in 1972 that a liability when public bodies ca
The critical levels for ozone effects on vegetation have been reviewed and revised by the LRTAP Convention. Eight new or revised critical levels based on the accumulated stomatal flux of ozone (POD gamma, the Phytotoxic Ozone Dose above a threshold flux of Y nmol m(-2) PLA s(-1), where PLA is the projected leaf area) have been agreed. For each receptor, data were combined from experiments conducte
Soil phosphorus (P) composition changes with ecosystem development, leading to changes in P bioavailability and ecosystem properties. Little is known, however, about how soil P transformations proceed with ecosystem development in boreal regions. We used 1-dimensional P-31 and 2-dimensional H-1, P-31 correlation nuclear magnetic resonance (NMR) spectroscopy to characterise soil organic P transform
Septic tanks with subsequent soil treatment systems (STS) are a common treatment technique for domestic wastewater in rural areas. Phosphorus (P) leakage from such systems may pose a risk to water quality (especially if they are located relatively close to surface waters). In this study, six STS in Sweden (11-28 years old) were examined. Samples taken from the unsaturated subsoil beneath the distr
Ciliate assemblages play a significant role in the microbial food web. The effects of environmental temperature on assemblage composition may be influenced by abiotic factors such as seasonality and disturbance, but the effects of temperature on ciliate assemblages found on different substrata have not been explored. Sandy bottoms and submerged rocks harbour dissimilar ciliate assemblages, and it
Studiens syfte var att med en explorativ ansats undersöka och beskriva svenska afghanistansoldaters upplevelser och känslor kopplat till sin utlandstjänstgöring och att få en bredare bild med olika aspekter av hur detta upplevs av soldaterna själva. Syftet var även att låta soldaterna ge synpunkter på Försvarsmaktens rutiner i form av bl.a. förberedelser, akut stöd på plats och uppföljning. DessutThe purpose of the study was to use an explorative approach to examine and describe Swedish Afghanistan veterans’ experiences and emotions in connection with their service abroad, and to create a broader picture with different aspects of how this is experienced by the veterans themselves. The purpose was also to let the veterans share their view of the Swedish Department of Defense’s routines incl
Parkinson’s disease (PD) is a neurodegenerative disorder with toxic forms of alpha synuclein (α-syn) accumulating in the midbrain dopaminergic (DA) neurons, leading to cell death. In the first part of the study we wanted to investigate the midbrain DA population and their gene expression relative to the intracellular α-syn load. To this end, human wildtype α-syn was packaged inside custom, uniquel
Predicting potential pollination services of wild bees in crops requires knowledge of their spatial distribution within fields. Field margins can serve as nesting and foraging habitats for wild bees and can be a source of pollinators. Regional differences in pollinator community composition may affect this spill-over of bees. We studied how regional and local differences affect the spatial distrib
