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Aims: Although nitrogen (N) fixation by moss-associated bacteria is the main source of new N in N-limited ecosystems like arctic tundra, we do not know which nutrient, molybdenum (Mo) or phosphorus (P), is rate-limiting for sustaining this process in the long-term. Further, how moss-associated N2 fixation impacts the belowground microbial regulation of decomposition remains unresolved. Methods: Mo
The magnitude and ecological impact of climate change varies with latitude. Several recent models have shown that tropical ectotherms face the greatest risk from warming because they currently experience temperatures much closer to their physiological optimum than temperate taxa. Even a small increase in temperature may thus result in steep fitness declines in tropical species but increased fitnes
Alpine soils are warming strongly, leading to profound alterations in carbon cycling and greenhouse gas budgets, mediated via the soil microbiome. To explore microbial responses to global warming, we incubated eight alpine soils between 4 and 35 °C and linked the temperature dependency of bacterial growth with alterations in community structures and the identification of temperature sensitive taxa
Biochar has been extensively studied as a soil amendment for carbon sequestration and for improving soil quality; however, a systematic understanding of the responses of soil microbial biomass and diversity to biochar addition is lacking. Here, a meta-analysis of 999 paired data points from 194 studies shows that biochar increases microbial biomass but has variable effects on microbial diversity.
Recent studies have revealed effects of various tree species on soil physical and chemical properties. However, effects of various tree species on composition and activity of soil microbiota and the relevant controls remain poorly understood. We evaluated the influence of tree species associated with two different mycorrhizal types, ectomycorrhiza (EcM) and arbuscular mycorrhiza (AM), on growth, b
Parasite species evolve by switching to new hosts, cospeciating with their current hosts, or speciating on their current hosts. Vector transmitted parasites are expected to speciate by host switching, but confirming this hypothesis has proved challenging. Parasite DNA can be difficult to sequence, thus well resolved parasite phylogenies that are needed to distinguish modes of parasite speciation a
After the French police managed to gain access to material from the encrypted communication service EncroChat, parts of the material were forwarded to the Swedish police. This resulted in a large number of people being sentenced to long prison terms. EncroChat is partly an encrypted communication service and partly an operating system that runs on smartphones. EncroChat is used by people who do n
Our thesis, The Valley Of Trust, attempts to build upon current literature on cultural diversity and its effect on trust by answering the question; How does cultural diversity affect trust within an international team? With the purpose of giving a more nuanced understanding of the role of cultural diversity and its impact on trust within international teams, we build upon the current literature an
This paper analyzes the impact of skilled emigration on the economic development of sending countries. Specifically, our study is concerned with how feedback effects of brain drain may mitigate some of the loss incurred from the outflow of talent. We construct an endogenous growth model incorporating skilled emigration to consider in detail how the inflow of remittances, network externalities of t
The EU regulation on Deforestation-Free Products (EUDR) enacted in 2023 aims to reduce deforestation connected to commodities imported to the EU, including cattle products. In Brazil, the EUDR pressures the local cattle supply chain towards more sustainable production. However, the potential effects of the EUDR on reducing deforestation in this sector are unclear and require scrutiny. Drawing on t
Data on marine microfossil assemblage composition have multiple applications. Initially, they were primarily used for (chrono)stratigraphy and palaeoecology, but these data are now also widely used to study evolutionary and ecological processes, such as past biodiversity and its links with environmental dynamics, or to provide a basis for conservation efforts and biomonitoring. The large range of
Assessing cross-taxon congruence is vital for effective forest conservation, because different taxonomic groups may respond inconsistently to key habitat variables such as stand age. We examined six taxonomic groups—insects, arachnids, springtails, epiphytic lichens, bryophytes, and vascular plants—across 25 Swedish oak stands ranging from 19 to 165 years old to determine whether species richness
Pangenomes are collections of annotated genome sequences of multiple individuals of a species1. The structural variants uncovered by these datasets are a major asset to genetic analysis in crop plants2. Here we report a pangenome of barley comprising long-read sequence assemblies of 76 wild and domesticated genomes and short-read sequence data of 1,315 genotypes. An expanded catalogue of sequence
Soil microbes drive ecosystem function and play a critical role in how ecosystems respond to global change. Research surrounding soil microbial communities has rapidly increased in recent decades, and substantial data relating to phospholipid fatty acids (PLFAs) and potential enzyme activity have been collected and analysed. However, studies have mostly been restricted to local and regional scales
Studies in temperate systems provide evidence that the abundance of arbuscular mycorrhizal fungal (AMF) depends on soil nutrient availability, which is mainly explained in the context of resource stoichiometry and differential plant biomass allocation. We applied this concept to an understudied ecosystem - tropical montane forest - analyzing root and AMF abundance along an elevational gradient wit
GEOL01 2016-03-31 GEOL01 Populärvetenskaplig text, instruktioner Ämne: Utgå från ditt kandidatarbete för din populärvetenskapliga text. Med tanke på att du kanske ännu inte kommit så långt i ditt arbete avseende resultat, får du skriva om varför ditt arbete är intressant för allmänheten i stort och i ett senare skede komplettera med dina resultat. Om du på ett populärvetenskapligt sätt kan förklar
https://www.geologi.lu.se/sites/geologi.lu.se/files/geol01_2016_pop_instruktioner.pdf - 2026-07-13
2014-03-12 LDC Verksamhetsstöd/programförmedling Besöksadress LDC, Margaretavägen 1A , Hämtställe 26 Telefon 046-222 9000, Telefax 046-222 13 99 E-post servicedesk@ldc.lu.se Internet http://www.ldc.lu.se Hej bästa programansvarig, Hoppas allt är bra med dig nu när våren börjar närma sig. Jag vill börja med att tacka dig för tålamodet, när jag inte har hunnit med alla ärenden som väntade på mig eft
https://www.it.lu.se/sites/it.lu.se/files/prog_nyhetsbrev_140312.pdf - 2026-07-13
