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Soil disturbance is recognized as an important driver of biodiversity in dry grasslands, and can therefore be implemented as a restoration measure. However, because community re-assembly following disturbance includes stochastic processes, a focus only on species richness or establishment success of particular species will not inform on how plant communities respond ecologically to disturbance. We
Hot desert ecosystems are characterized by high soil temperatures with large fluctuations annually and diurnally. Thus, one could hypothesize that not only the microbial community would be adapted to high temperatures, but also have a large temperature range conducive for growth. We determined the temperature sensitivity of the soil bacterial community from the Chihuahuan Desert, Big Bend National
Background and Aim Climate change models are limited by lack of baseline data, in particular carbon (C) allocation to - and dynamics within - soil microbial communities. We quantified seasonal C-assimilation and allocation by plants, and assessed how well this corresponds with intraradical arbuscular mycorrhizal fungal (AMF) storage and structural lipids (16: 1 omega 5 NLFA and PLFA, respectively)
Biotechnology offers extensive possibilities to incorporate new traits into organisms. Genetically modified (GM) traits relevant for agro-ecosystems include traits such as pest resistance and herbicide tolerance in crop plants, increased growth rate in fish and livestock, and enhanced nitrogen-fixation capabilities of soil microbes. In this review, we evaluated the direct and indirect trait-specif
Soil nutrients and light have major effects on the economics of arbuscular mycorrhizal (AM) symbioses. This study tests the main and interactive effects of soil fertility and light on AM fungal community. We conducted a 3 year mesocosm experiment with a full two factorial design: light (full light or shade) and soil fertility (unfertilized or fertilized), on the Qinghai-Tibetan Plateau. Plant trai
Soil disturbance is recognised as an important restoration measure for conserving biodiversity in sandy soils. We used a soil disturbance (ploughing) experiment in a sandy grassland as well as a semi-natural disturbance (slope erosion enhanced by cattle trampling) gradient on a sandy slope to test the soil disturbance effects on the ground-living beetle community. Both experimental disturbance and
Through physiological integration, clonal plants can support ramets in unfavourable patches, exploit heterogeneously distributed resources and distribute resources that are taken up over large areas. Physiological integration generally increases in adverse conditions, but it is not well known which factors determine the evolution of physiological integration. The aim of this study was to investiga
We have investigated the structure of a microbial community in semi-natural sandy grassland in southeast Sweden. The sand is rich in lime, but in most places the soil is decalcified in the upper layers, and therefore this site shows a large variation in pH within short distances. We collected samples at three different soil depths (0-10 cm, 10-20 cm and 20-30 cm) and found the pH to range from 5 t
The objectives were to investigate (i) the forms and release pattern of P from an ash-rich biochar-amended sandy soil; (ii) the transformation of biochar P in a soil-plant system. Several methodologies (a bioassay test, soluble P extractions, a sequential P fractionation and successive P extractions via resin strips) were used to study the bioavailability and transformation of P in a sandy soil
We pursued the following three interconnected points: (1) there are unexplored opportunities for resilience scholars from different disciplines to cross-inspire and inform, (2) a systems perspective may enhance understanding of human resilience in health and social settings, and (3) resilience is often considered to be fractal, i.e., a phenomenon with recognizable or recurring features at a variet
Arthropod predators and detritivores are among the first colonisers on land surfaces undergoing primary succession. In the absence of higher plants and herbivores, they may either have an allochthonous food source (i.e. of geographically distant origin) or local food source that is sustained by e.g. microorganisms. By studying spiders and collembolans on sites along chronosequences on recently eme
Specialist plant species in calcareous sandy grasslands are threatened by acidification and high nutrient levels in the topsoil. We investigated whether topsoil removal and soil perturbation in degraded sandy grasslands could lead to establishment of specialist species belonging to the threatened xeric sand calcareous grassland habitat. Restoration actions performed in 2006 resulted in increased s
Sedan monopolets fall har mediesituationen i Sverige förändrats mycket. SVT är inte längre ensamma aktörer på marknaden. Många frågor har uppstått efter monopolet föll. Bland annat hur SVT ska anpassa sig för att kunna behålla publiken i framtiden när utbudet och konkurrensen från andra kanaler ständigt växer. Syftet med den här uppsatsen är att granska debatten kring SVT i Dagens Nyheter (DN) och
Non-fungible tokens (NFTs) have gained significant attention in recent years as a rapidly growing form of crypto assets with unique characteristics. However, existing tax regulations have struggled to keep up with these developments. This thesis addresses the taxation of NFTs within the European Union (EU) and highlights the legal gap in their treatment, given their exclusion from the Markets in C
The purpose of this essay is to analyse the status of good faith under the CISG in the light of article 7 of the Convention. The first part of this article reads: ''In the interpretation of this Convention, regard is to be had to its international character and to the need to promote uniformity in its application and the observance of good faith in international trade.'' Emphasis a
The Convention on the Rights of the Child is a legal framework stating what rights children have. Street children also have all these rights but few countries have responded to this. The Convention is however the most widely ratified multi-national treaty in existence and have been ratified by all countries known to deprive street children of their rights. This Master thesis uses the situation in
In the carriage of goods by sea most of the times there are three parties involved - the carrier, the shipper and the consignee. Due to the fact that more often than not they are unrelated to each other, such a relationship presupposes the use of fraudulently issued bills of lading. The purpose of this paper is to discuss the existing legal regimes governing the use of bills of lading and the way
Chile is positioning itself as a leader in the transition to green energy, particularly through its National Green Hydrogen Strategy, which aims to make Chile one of the world’s leading exporters of carbon-neutral hydrogen for energy and industrial applications. This thesis examines Chile’s green hydrogen policy from a political ecology perspective, in the context of 1) the Chilean state’s concept
The distinguishing morphological and chemical characters of nine species of Parmelia Ach. s. str. occurring in the southern Baltic region, namely P. barrenoae Divakar et al., P. ernstiae Feuerer & A. Thell, P. fraudans (Nyl.) Nyl., P. omphalodes (L.) Ach. (including both subspecies P. omphalodes ssp. discordans (Nyl.) Skult and P. omphalodes ssp. omphalodes, P. pinnatifida Kurok., P. saxatilis
Predicted impacts of climate change on crops—including yield declines and loss of conservation lands—could be mitigated by exploiting existing diversity within crops. Here we examine this possibility for wine grapes. Across 1,100 planted varieties, wine grapes possess tremendous diversity in traits that affect responses to climate, such as phenology and drought tolerance. Yet little of this divers
