Browsing Masteruppsatser, Biologi / Institutionen för biologi och miljövetenskap by Title
Now showing items 1-20 of 44
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African elephants' effect on the temporal use of elephant highway by predator and prey. Makgadikgadi Pans National Park.
(2023-08-18)African savanna elephants (Loxondonta africana) are the world’s largest land-mammal and are considered a keystone species. The effect they have on vegetation and their environment is well known, but their effect on other ... -
ARCTIC MYCORRHIZAL INTERACTIONS UNDER CLIMATE CHANGE
(2022-07-06)The Arctic is experiencing climate change at an extreme rate, affecting both the rates of plant growth and nutrient cycling. Due to the changes in temperature, but also in nutrient cycling, with increased nutrient ... -
ARCTIC PLANT COMMUNITIES RISE WITH TEMPERATURE Plant functional traits as a tool to predict global climate change
(2022-07-06)Global warming occurs at a rate at least three-fold in the arctic regions compared to the rest of the world. Here, plant community functional traits were assessed in response to experimental warming in three arctic areas ... -
Arctic plants and temperature: do spatial relationships predict change over time?
(2024-05-30)Temperature in the Arctic is increasing rapidly, potentially triggering global climate feedback if the carbon in the Arctic soil is released. Plants are affected by the rising temperature and play crucial roles in ... -
Assessment of Geosmin Level and Nutrient measurements (ammonia, nitrite, nitrate) in Recirculated Aquaculture Systems (RAS). A case study from African Catfish (Clarias gariepinus) production in Sweden
(2024-08-15)Recirculating aquaculture systems (RAS) offer a promising method of producing fish, but problems such as the presence of geosmin, a compound known for its earthy taste and odour, can affect the quality of the fish This ... -
The bzzzt of frirends. Interspecific competition in Arctic plants for pollination services.
(2023-06-27)The Arctic has a harsh environment that is challenging for the flora and fauna that inhabits the region. The ruling abiotic factors of the region results is a low species richness that creates a potential challenge for the ... -
A computational model of metapopulation dynamics and organism-mediated nutrient flow
(2023-08-07)The aim of this project was to assess, using in-silico experiments, how different life history char-acteristics, such as age at maturity and dispersal ability of individuals, influence the dynamics of a metapopulation. To ... -
Decreases over time in shannon diversity of land snails
(2023-02-15)With rising temperatures as a consequence of climate change, suitable habitats for land snails in the northern hemisphere may be shifting northwards. However, there is a lack of studies that explore the latitudinal effects ... -
DEVELOPMENT OF AN INNOVATIVE QUANTITATIVE METHOD FOR DOPAMINE AND A DOPAMINE AGONIST USING LIQUID CHROMATOGRAPHY COUPLED TO MASS SPECTROMETRY
(2024-08-15)Depression Disorder is a frequent debilitating condition worldwide posing a significant global health burden. Along the years there have been different ways to alleviate the symptoms even though treatment options are ... -
Development of osmo- and appetite regulation during transfer of smolt from freshwater to increasing salinities
(2023-01-26)Atlantic salmon (Salmo salar) is common in Scandinavian aquaculture and must be transferred from freshwater to seawater to grow properly. Despite being assessed as ready smolts, meaning they have gone through the physiological ... -
Diet of the Skagerrak harbor seal: How has the energy content in the diet changed during the last decades?
(2024-04-29)As a generalist top predator, the harbor seal is of crucial importance to the balance of the coastal ecosystem. The number of newborn pups in the Northern Skagerrak population has been declining since 2012, where food ... -
Differences in velocity between the sexes and stages of courtship in a dance fly
(2022-02-17)Dance flies (Diptera: Empididae: Empidinae) are famous for their elaborate mating behaviour, which can be broken down to three distinct stages in adults: hunting, swarming, and mating. In many species, males hunt for prey ... -
Effect of suspended sediment on embryos and larvae of the cold‐water coral Lophelia pertusa
(2022-09-13)The cold-water coral Lophelia pertusa (syn. Desmophyllum pertusum) provides importanthabitats in deep-sea ecosystems, allowing for a biodiversity similar to that of tropical coral reefs. Anthropogenic activities like ... -
Endophytic fungi in living trees - are communities affected more by tree species, tree age, or geographic origin?
(2022-08-16)Endophytic fungi are ubiquitous in living vascular plants and have been identified in most terrestrial environments. The endophytes may have various ecological roles such as commensals, symbionts and latent invaders. Woody ... -
Estimating historic ranges of extinct scavenging birds from North America during the late Pleistocene using co-occurrence data from the fossil record
(2023-06-30)The aim of my study was to estimate and compare the historic range of nine scavenging birds from North America that went jointly extinct with their mammalian megafaunal prey in the Late Pleistocene. Although the severity ... -
Exploring the interactive effects of light intensity and pH on coral oxygen production
(2023-08-07)The study aimed to explore the possible interaction between acidification and light intensity and the effects on corals' oxygen production. Interactions between temperature and pH have been thoroughly researched and proven ... -
Fågelperspektiv på när kraftledningsgator möter granplantage
(2023-08-07)Granplantage är en av de vanligaste landytorna i Sverige, en markanvändning som bedöms påverka biologisk mångfald negativt. Luftburna kraftledningsgator i regionnätet utgör mer än 1100 kvadratkilometer av Sveriges landyta ... -
FRESHWATER AQUAPONICS: LOW-TECH ALTERNATIVE FOR NUTRIENT REMOVAL IN SWEDISH AQUACULTURE?
(2024-08-26)The growing world population is putting conventional aquaculture to the test. Available land for food production is becoming scarcer, and excess nutrients can cause eutrophication of soils and waters. Aquaponics, the ... -
From bud to fruit: How flowering time and insect activity interact to influence plant reproduction
(2024-04-18)The Arctic is warming faster than any other biome on Earth, leading to changes in vegetation patterns, including the advancement of overall flowering. However, the implications of these changes for plant reproduction are ... -
Holocene vegetation change and its correlates in fennoscandia
(2022-10-21)Climatic and anthropogenic legacy has differently impacted vegetation and its community composition. To determine the extent and origin of changes across Fennoscandia, representative regions were defined that entailed ...