Selaus tekijän mukaan kokoelmassa 1181 Ekologia, evoluutiobiologia
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Breeding during a Predation Regime Shift : Behavioural and physiological responses of female common eiders facing the recovery of their native predator
Mohring, Bertille (Åbo Akademi University & CNRS–La Rochelle Université, 14.12.2023)Predation is a key selective force driving prey trait evolution. Yet, the extent to which predator-consumptive and predation risk effects shape phenotypes is still poorly understood. Since predation risk increases the cost ... -
Coastal Habitats and their Importance for the Biodiversity of Faunal Communities
Henseler, Christina (Åbo Akademi - Åbo Akademi University, 24.06.2020)Coastal habitats represent highly productive areas serving important functions for multiple organism groups. These shallow areas generally maintain high faunal biodiversity, providing important ecosystem goods and services, ... -
Copepods in a changing sea : ocean acidification, long-term changes and short-term variability
Almén, Anna-Karin (Åbo Akademi - Åbo Akademi University, 19.05.2017)The rapid increase in atmospheric carbon dioxide is causing global warming but also changes in the ocean chemistry. When carbon dioxide dissolves in seawater it changes the carbonate chemistry towards lower levels of ... -
Drivers of plankton populations in the Baltic Sea
Forsblom, Louise (Åbo Akademi University, 20.05.2020)Plankton are at the base of the food chain, and identifying their drivers is important for understanding how climate change will impact populations and communities. The main aim of my thesis was to quantify the effects of ... -
Dynamic ecosystems under anthropogenic stress : how does macrotidal sandy fauna respond to green tides?
Quillien, Nolwenn (Åbo Akademi - Åbo Akademi University, 20.05.2016)Highly dynamic systems, often considered as resilient systems, are characterised by abiotic and biotic processes under continuous and strong changes in space and time. Because of this variability, the detection of overlapping ... -
Effects of algal turbidity on foraging and antipredator behaviour of the three-spined stickleback (Gasterosteus aculeatus)
Sohel, Shakwat (Åbo Akademi - Åbo Akademi University, 23.10.2015)The aim of this thesis was to examine how aquatic organisms, such as fish, behave in an altered environmental condition. Many species of fish use vision as their primary tool to gain information about their surrounding ... -
Facilitation and Feedbacks in Seagrass Communities : Testing the Role and Context-Dependency of Ecosystem Engineers
Meysick, Lukas (Åbo Akademi - Åbo Akademi University, 18.12.2020)In physically unstable habitats such as coastal soft sediments, facilitative interactions are essential for structuring associated ecological communities. Here, habitat amelioration by ecosystem engineers such as seagrasses, ... -
Flavobacterium psychrophilum adhesion and biofilm formation
Papadopoulou, Anna (Åbo Akademi - Åbo Akademi University, 18.05.2018)Flavobacterium psychrophilum causes serious infections in farmed rainbow trout (Oncorhynchus mykiss) and subsequent substantial economic losses to fish farmers, globally. Over the past years, few studies have conclusively ... -
From genotype to phenotype : diversity and population structure of Flavobacterium psychrophilum
Sundell, Krister (Åbo Akademi - Åbo Akademi University, 29.05.2015)Flavobacterium psychrophilum is the etiological agent of bacterial cold-water disease (BCWD) causing high fish mortalities and significant economic losses to the freshwater salmonid aquaculture industry around the world. ... -
Genetic diversity and phenotypic variability of phytoplankton populations in the Baltic Sea
Sjöqvist, Conny (Åbo Akademi - Åbo Akademi University, 18.09.2015)- -
Human Ecosystem Engineering : Effects and Feedback in Coastal Benthic Systems
Jacquot, Maïté P. (Åbo Akademi - Åbo Akademi University, 16.02.2024)In the attempt to enhance their environment, humans are causing changes in ecosystems worldwide, by acting as ecosystem engineers. Changes in ecosystems, caused by any ecosystem engineering species, have the potential to ... -
Implications of the Integration of a Non-Native Fish into Coastal Communities
Herlevi, Heidi (Åbo Akademi - Åbo Akademi University, 14.03.2024)The Baltic Sea ecosystem is undergoing unprecedented changes in abiotic conditions due to the combined effects of climate change, eutrophication, and bottom-water deoxygenation. Non-native species, introduced outside their ... -
Marine Food Webs : an Exploration of Past Structure and Function to Prepare for the Future
Olivier, Pierre (Åbo Akademi - Åbo Akademi University, 27.04.2022)Food webs depict species and their trophic interactions arranged in a network. Changes in food web structure ultimately beget changes in functioning. In recent years, environmental and anthropogenic pressures have reshaped ... -
Ocean acidification in the Baltic Sea : implications for the bivalve Macoma balthica
Jansson, Anna (Åbo Akademi - Åbo Akademi University, 12.04.2017)The Baltic Sea is one of the most human-impacted sea areas in the world and its ecosystems are exposed to a variety of stressors of anthropogenic origin. Large changes in the environmental conditions, species and communities ... -
Patterns in diversity and function of benthic fauna in a coastal system under environmental change
Weigel, Benjamin (Åbo Akademi - Åbo Akademi University, 10.03.2017)Increasing changes in environmental conditions are reshaping marine ecosystems and their communities on a global scale. Coastal areas are particularly vulnerable as environmental stressors have a stronger impact due to the ... -
Phosphorus in the sediments of the northern Baltic Sea archipelagos : internal P loading and Its impact on eutrophication
Puttonen, Irma (Åbo Akademi - Åbo Akademi University, 31.03.2017)In the 20th century Eutrophication as a result of anthropogenic enrichment of nutrients has become a global problem in marine coastal waters. In the Baltic Sea, eutrophication is considered the most severe environmental ... -
Spatial and temporal variation in fish populations and assemblages in coastal waters of the northern Baltic Proper
Mustamäki, Noora (Åbo Akademi - Åbo Akademi University, 12.06.2015)The distribution and traits of fish are of interest both ecologically and socio-economically. In this thesis, phenotypic and structural variation in fish populations and assemblages was studied on multiple spatial and ... -
Spatial distributions of phytoplankton in rock pools : metacommunities to molecules
Häggqvist, Kerstin (Åbo Akademi - Åbo Akademi University, 28.04.2017)Ecological studies on how populations and communities assemble and function traditionally focussed on the effects of local environmental conditions and species interactions. Still, no species, the consequences of its actions ...