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Allochthonous arthropods can sustain a local food web on seemingly barren land, but are nevertheless often neglected in studies of community assembly. In the present study, we investigated primary food web assembly on nunataks (ice-free areas) in a retreating glacier in Iceland. Nunataks enable studies that take into account both the temporal factor of the assembly and the influx of allochthonous
Carboxylic acids (CAs), amino acids (AAs) and carbohydrates (CHs) in dissolved free forms can be readily assimilated by aquatic bacteria and metabolized at high growth efficiencies. Previous studies have shown that these low-molecular-weight (LMW) substrates are released by phytoplankton but also that unidentified LMW compounds of terrestrial origin is a subsidy for bacterial metabolism in unprodu
We report a novel system for time-resolved diffuse remission spectral measurements, based on short light continuum pulses generated in an index-guided crystal fiber, and a spectrometer-equipped streak camera. The system enables spectral recordings of absorption and reduced scattering coefficients of turbid media in the wavelength range 500 - 1200 nm with a spectral resolution of 5 nm and a tempora
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
Ungulate trampling modifies soils and interlinked ecosystem functions across biomes. Until today, most research has focused on temperate ecosystems and mineral soils while trampling effects on cold and organic matter-rich tundra soils remain largely unknown. We aimed to develop a general model of trampling effects on soil structure, biota, microclimate and biogeochemical processes, with a particul
Conservation genomics is a rapidly growing subdiscipline of conservation biology that uses genome-wide information to inform management of biodiversity at all levels. Such efforts typically focus on species or systems of conservation interest, but rarely consider associated microbes. At least three major approaches have been used to study how microorganisms broadly contribute to conservation areas
The recent more or less complete return and recovery in Skåne, southern-most Sweden, of epiphytic bryophyes known to have suffered from atmospheric pollution in the mid 1900’s, e.g. Zygodon rupestris, Antitrichia curtipendula, Leucodon sciuroides, Orthotrichum lyellii, O. speciosum and O. stramineum, is here discussed and illustrated on maps. However, apart from these successful recoveries, at lea
70411-Ornis-07-1_PL_64s-4x16-ST-SW-ark 48 ORNIS SVECICA 17: 48–58, 2007 Abstract Åren 1984–1995 genomfördes en detaljerad, kvan- titativ fågelinventering inom ett fjällområde nära Ammarnäs. Det inventerade området var hela 12,8 kvadratkilometer stort. Detaljerade fågelinvente- ringar, utförda med som i detta fall revirkartering kompletterad med par- och boräkning, brukar oftast omfatta provytor so
https://www.luvre.lu.se/sites/luvre.lu.se/files/luvre-1362007svenssonraurejaure.pdf - 2026-05-30
The Tajik health system is characterized by improving health outcomes over the last 20 years, but also major inefficiencies in health care delivery and large difficulties for people to access affordable essential health care. The benefits package (BP) is a key tool for prioritizing state budget allocations toward health interventions that most effectively enhance health system performance. This ar
Introduction/Background: Measurement of umbilical cord blood gasesat birth is the gold standard of capturing the metabolic state of the newborn. Dual sampling of umbilical cord vessels is mandatory, yet the longterm predictive value of venoarterial differences, ΔpH, remain undetermined. Previously, large ΔpH showed a protective effect against adverseneonatal outcomes.Objectives: To investigate the
The accumulation of biofilms in porous media is likely to influence the overall hydraulic properties and, consequently, a sound understanding of the process is required for the proper design and management of many technological applications. In order to bring some light into this phenomenon we present a mechanistic model to study the variably saturated hydraulic properties of bio-amended soils. Sp
Digital research data is often advanced as a trouble-free concept and used to describe the material of research at all stages in a research process. However frequently such framing lacks understanding of the roles of disciplinary and organisational cultures, and of what the various practices, including those of funding policy and university administration, involved in shaping what research data ar
Much of biology happens at the protein-water interface, so all dynamical processes in this region are of fundamental importance. Local structural fluctuations in the hydration layer can be probed by 17O magnetic relaxation dispersion (MRD), which, at high frequencies, measures the integral of a biaxial rotational time correlation function (TCF) - the integral rotational correlation time. Numerous
Vägen till en ätstörning, som exempelvis anorexia nervosa eller hetsätningsstörning leder alltid förbi ett gränsland där energiintaget stegvis förändras. Kanske stoppar man i sig aningen mindre mat på måndagen än man gjorde på söndagen och på tisdagen lite mindre än på måndagen. Eller kanske man frivilligt stoppar fingrarna i halsen någon gång när man känner att man har ätit för mycket. Detta gränThe path to an eating disorder (ED) always leads through a borderland, which, in this thesis, is referred to as disordered eating (DE) (Neumark-Sztainer, Wall, Eisenberg, Story, & Hannan, 2006; Waaddegaard, Thoning, & Petersson, 2003). In this borderland, people tend to make unhealthy eating choices, such as greatly reducing their food intake, self-inducing vomiting, or engaging in binge e
Boreal trees rely on their ectomycorrhizal fungal symbionts to acquire growth-limiting nutrients, such as nitrogen (N), which mainly occurs as proteins complexed in soil organic matter (SOM). The mechanisms for liberating this N are unclear as ectomycorrhizal fungi have lost many genes encoding lignocellulose-degrading enzymes present in their saprotrophic ancestors. We hypothesized that hydroxyl
Effective societal responses to rapid climate change in the Arctic rely on an accurate representation of region-specific ecosystem properties and processes. However, this is limited by the scarcity and patchy distribution of field measurements. Here, we use a comprehensive, geo-referenced database of primary field measurements in 1,840 published studies across the Arctic to identify statistically
This report is a result of the work in projects for The Swedish Rescue Services Agency and for The National Board of Civil Emergency Preparedness. The problem is defined as difficulties in establishing rapid and effective management in major fire-fighting and rescue operations. The analyses result in a view that emergency management can be seen as cognitive modelling. The management work of major
Safety is intertwined with learning, without learning safety would be a static construct. To advance, safety concepts and theories all rely on the art of processing knowledge and though learning attaining a contributing effect. In shipping, the abstract of a near-miss is promoted as ‘good business and economic sense because it can improve crew performance and reduce costs’. Studies have shown th
Title: Shipment Consolidation Policy Project. A case study at the Integrated Logistics Product Area at the Case Company. Authors: Carl Tornerhjelm, Tom Wachtmeister. Supervisor: Peter Berling, the Division of Production Management. Background: Larger corporations that distribute products and goods globally face both internal and external demands from stakeholders. High service levels call for freq
Huvudregeln i upphandlingsrätt är att upphandlingar ska annonseras. Detta grundar sig i principerna om att upphandlingar ska vara öppna för alla leverantörer att söka för att principerna om fri konkurrens och fri rörlighet av varor och tjänster i den inre marknaden ska säkerställas. Emellertid finns det undantag från denna huvudregel. Vid synnerlig brådska finns det möjlighet att frångå annonserinThe exception for extraordinary urgency is primarily evident through the strict interpretation by the European Court of Justice (ECJ). It's so strict that it has never been invoked in any of the Court's cases. The fundamental rule in procurement law mandates that tenders must be ad-vertised. This is rooted in the principles of open access for all suppliers with the intent to ensure free c
