Filtyp
Shrub range expansion, also known as shrubification, across arctic and subarctic ecosystems is expected to increase with climate change, with implications for vegetation structure, biodiversity, and soil carbon dynamics. Previous research has found a shrubification-induced decrease in organic matter stocks from tundra to forest in the organic horizon, prompting further investigation into whether t
Stormwater is runoff water from snow or rain events that enters a recipient shortly after the precipitations has reached the ground. Stormwater can contain heavy metals and nutrients depending on the type and size of the catchment area as well as the intensity and regularity of the precipitation. In high amounts, the pollutants can inhibit algal growth and have a negative effect in algal diversity
Life-history theory predicts a trade-off between immune defence and reproduction. If an individual needs to fight an infection during the breeding season, they may reduce their current reproductive effort and invest more resources into an immune response. Alternatively, they may invest their resources into increasing current reproductive effort at the expense of immune defence, which could reduce
Copepods play a central role in marine food webs, acting as an important link between primary producers and higher trophic levels. Predator-prey interactions between copepods and their prey drive the evolution of defense traits in phytoplankton, including chemically mediated inducible defenses. While our understanding of how predator alarm cues structure plankton communities is developing rapidly,
Understanding how organisms allocate limited resources among competing traits is a central issue in evolutionary biology. In this thesis, I test whether butterflies have an energetic trade-off between the high-cost sensory traits, compound eyes and antennae. Such a trade-off would be predicted by the Expensive Tissue Hypothesis. We used high-resolution 3D micro-CT data from 233 museum specimens (r
Growing research on ecosystem subsidies has emphasized the connection between aquatic and terrestrial ecosystems, with changes in one triggering responses in the other. In high mountain lakes, emerging aquatic insects are considered key aquatic subsidies and serve as an important nutrient resource for surrounding terrestrial ecosystem. The introduction of alien fish into these lakes, known to caus
The main focus of this case study was to assess ecological succession and restoration success after the removal of Rosa rugosa. Plant species composition and moss presence, bare ground cover, and biodiversity indices were analysed to identify patterns and differences within and between the restored and an invaded adjacent area. The complete absence of R. rugosa in restored plots confirms the effec
Sowing wildflower strips is a commonly applied agri-environmental scheme in agricultural landscapes used to mitigate the ongoing decline in pollinator diversity and abundance. Flower strips can be implemented as either annual or perennial plantings to promote biodiversity and/or ecosystem services. As different objectives may require different seed mixtures, this may impact how various pollinator
The mobility of harbor porpoise (Phocoena phocoena) makes the small, toothed whale complicated to study, especially regarding their distribution and foraging over a longer timescale. To overcome this, passive acoustic monitoring, which detects their high-frequency echolocation clicks (ranging from 125-140 kHz), offers a way to track their presence with high temporal resolution (measured as detecte
Harmful algal blooms pose a threat to public health and the economy, affecting tourism, fisheries, and aquaculture. Complex environmental factors influence their occurrence, but current forecasting models often overlook the role of grazers. Chemical cues released by zooplankton, copepodamides, can trigger the production of toxins in harmful algae. Therefore, their presence in bivalves may enhance
Migration does have a time, energy or mortality cost, and the strategy to minimise the costs shapes the migration behaviour. Depending on the relative influence of these costs in shaping the migration, an animal is expected to undertake these journeys in different ways, depending on their morphology and migration ecology. I investigated if five Tringa-type waders minimise their migration time, and
In the ocean, carbon export is driven by the biological carbon pump where organic matter is transported from the surface layer to the deep sea. The sinking particulate organic matter is mainly a product of phytoplankton aggregates and faecal pellets from zooplankton & fish, together also known as “marine snow”. Marine snow is continuously being degraded by microbial and zooplankton activities
According to sexual selection theory, males should benefit more from mating with multiple partners than females do as male investment into offspring production is typically lower. However, male reproductive success might not increase indefinitely with an increasing number of female mating partners. Male ejaculates are limited, and so mating with multiple females over a short period of time may cau
Global rising temperatures is impacting species interactions worldwide including those between host and parasites. A long-term study on a population of blue tits (Cyanistes caeruleus) linked increases in avian malaria parasites to rising temperatures. Understanding the consequences that these increases in avian malaria parasites are causing is vital. Therefore, data from the past 28 years on this
Within organizational families, listening between coworkers plays an essential role in enabling organizational success and the effective enactment of family dynamics. It allows information to circulate, collaboration to take place, and trusting relationships to develop. Yet, coworkers’ listening processes, agency and experiences in an organizational family continue to be overlooked by organization
This thesis explores the Brazilian State logic of criminalization or legitimization of violence through two important cases: the 1992 Carandiru massacre, in which 111 inmates were assassinated by the military police, and the 2013-2014 Black Bloc demonstrations in which 23 activists were criminalized. Aiming to challenge entrenched ideas about violence, the research investigates who benefits from t
This thesis examines how Ellen Nordmark’s Epos (2024) relates to the epic genre. Rather than categorizing the work within a single, fixed genre, I employ close reading to analyze how it comments on, questions, and reformulates conventions on the epic genre. Particular attention is given to how Epos both reveals and reconfigures the epic tradition, and how the text emphasizes oral and aural modes o
Denna studie undersöker skador vid farthinder med syfte att identifiera de bakomliggande orsakerna samt föreslå lämpliga åtgärder för att minska skador. Studien fokuserar på farthinder i Lund och Malmö. Genom att kombinera okulär inventering av skador med bakgrundsdata från kommunerna och multipel regressionsanalys har en mängd data samlats in och analyserats för att hitta samband mellan skador, tThis thesis investigates damage to speed humps with the aim of identifying the underlying causes and proposing appropriate measures to reduce the occurrence of damage. The study focuses on speed humps in Lund and Malmö. By combining visual inspection of damage with background data from municipalities and multiple regression analysis, a large amount of data was collected and analyzed to find correl
