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The field of genetic diversity in protists, particularly phytoplankton, is under expansion. However, little is known regarding variation in genetic diversity within populations over time. The aim of our study was to investigate intrapopulation genetic diversity and genetic differentiation in the freshwater bloom-forming microalga Gonyostomum semen (Raphidophyceae). The study covered a 2-year perio
In the period 2009–2011, Member States discussed whether the EU should increase its emissions reduction target for 2020 beyond the existing 20%. This discussion has not resulted in any agreement, the different actors being deeply divided between those calling for a step-up to a higher target (for instance 30%) and those opposed to any kind of increase. The division can be seen as a result of a con
Previous studies focused mainly on the provision of ecosystem services by species movements between semi-natural and managed habitats, whereas data on spillover effects between two managed habitats or between habitats that provide target resources in non-overlapping time periods are lacking. We studied densities of three pollinator groups on sunflower fields as a late mass-flowering crop in 16 lan
By having phenotypically plastic traits, many organisms optimize their fitness in response to fluctuating threats. Freshwater snails with translucent shells, e.g. snails from the Radix genus, differ considerably in their mantle pigmentation patterns, with snails from the same water body ranging from being completely dark pigmented to having only a few dark patterns. These pigmentation differences
In 2007, the EU decided to cut greenhouse gas emissions by 20/30 per cent, something which was considered a proof of the EU's willingness to take on high targets independently of others. In the period 2009-11, the EU was debating but could not reach an agreement on stepping up to a 30 per cent reduction target. This raises the question: why did the EU go from being capable of adopting high targets
Bacteria play a central role in the cycling of carbon, yet our understanding of the relationship between the taxonomic composition and the degradation of dissolved organic matter (DOM) is still poor. In this experimental study, we were able to demonstrate a direct link between community composition and ecosystem functioning in that differently structured aquatic bacterial communities differed in t
Climate finance constitutes an integral part of the European Union’s climate policy. Yet, climate policy is increasingly addressed by non-environmental institutions. In examining the transfer of climate finance from the Environment Council to the Council for Economic and Financial Affairs (ECOFIN) in spring 2009, I analyse how climate finance has been framed in ECOFIN. Two finance ministerial fram
Reducing emissions from forest degradation and deforestation, conserving and enhancing forest carbon stocks, and sustainably managing forests (REDD+) has emerged as one of the most anticipated climate change mitigation tools. This paper aims to understand and identify the underlying discourses that have dominated the emergence of REDD+, by identifying the key story lines in the policy and academic
Browning of inland waters has been noted over large parts of the Northern hemisphere and is a phenomenon with both ecological and societal consequences. The increase in water color is generally ascribed to increasing concentrations of dissolved organic matter of terrestrial origin. However, oftentimes the increase in water color is larger than that of organic matter, implying that changes in the c
About 25% of the 531 5x5 km grid squares have been investigated during the six first years of the ongoing survey of the bryophyte flora of the province of Skåne, c. 50 persons have participated and 65,539 records and 21,135 vouchers have been collected. Of the 687 taxa that have ever been reported from the province, 591 have been recorded since 1995 and 34 have been found as new to the province si
Diatom-based assays have been successfully associated worldwide with the tropic status of lakes. Several studies have demonstrated a correlation between epiphytic diatoms and nutrient load in shallow lakes and wetlands. We examine the relative importance of environmental factors in explaining the structure of epiphytic diatom communities in a set of Western European shallow lakes. The effects of l
Synergies between large-scale environmental changes, such as climate change(1) and increased humic content (brownification)(2), will have a considerable impact on future aquatic ecosystems. On the basis of modelling, monitoring and experimental data, we demonstrate that community responses to global change are determined by food-chain length and that the top trophic level, and every second level b
Popular Abstract in Swedish Jordens klimat har ändrats många gånger genom dess historia. Under de senaste 2,6 miljoner åren har de kontinentala landmassorna varit geografiskt fördelade på så sätt att relativt små skillnader i Jordens omloppsbana kring solen, s.k. orbitala förändringar, har givit upphov till övergångar mellan långvariga, kalla perioder (istider) och kortvariga, varma perioder (mellThis thesis aimed to examine the relationship between climate and atmospheric CO2 concentrations through rapid climate changes during the Holocene. Climate was reconstructed using high-resolution, radiocarbon dated, lake sediment geochemical proxies (magnetic susceptibility, loss-on-ignition, total carbon/nitrogen/sulphur determinations and biogenic silica), vegetational reconstruction (pollen ana
The article reflects on the mechanisms aimed to control the fulfillment of the EU sustainability criteria for biofuels, as they were promoted in Directive 2009/28/EC. The article contains the final results of the research initiated in the work Pavlovskaia, E. (2013) “Controlling the Fulfillment of the EU Sustainability Criteria for Transport Biofuels”, which was published in RELP 4/2013. The artic
Many recent studies have found genetically differentiated populations in microorganisms despite potentially high dispersal. We designed a study to specifically examine the importance of physical dispersal barriers, i.e. geographic distance and lack of hydrological connectivity, in restricting gene flow and enhancing divergence in limnic microorganisms. We focused on the nuisance microalga Gonyosto
Migratory land birds perform extreme endurance flights when crossing ecological barriers, such as deserts, oceans and ice-caps. When travelling over benign areas, birds are expected to migrate by shorter flight steps, since carrying the heavy fuel loads needed for long non-stop flights comes at considerable cost. Here, we show that great snipes Gallinago media made long and fast non-stop flights (
Recent studies show that both marine and limnic microalgal species often consist of several genetically distinct populations. This is also valid for the nuisance freshwater algae Gonyostomum semen, which originates from acidic, brown water swamp lakes, but can nowadays also be found in clearer lakes with close to neutral pH. We hypothesized that the observed genetic differentiation among G. semen
The nuisance alga Gonyostomum semen (Raphidophyceae) has expanded in the Nordic countries during the last decades and can dominate lake phytoplankton communities almost completely. A possible explanation to its dominance could be limited grazing by zooplankton. We investigated the potential grazing pressure on G. semen using an experimental approach supported by field data. We determined the grazi
We start with two puzzles: first, how to explain the European Union (EU)'s decline as a climate change leader at the Copenhagen summit? Second, how to understand the partial revival of its leadership position at the Durban climate summit? We advance a twofold explanation, focusing on changes in relative power relations among major powers but also on negotiation strategies and coalition building. I
