Search for dissertations about: "chironomids"
Showing result 1 - 5 of 14 swedish dissertations containing the word chironomids.
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1. The role of benthic macrofauna in nitrogen cycling in eutrophic lake sediment
Abstract : This thesis concerns the role of sediment-living macrobenthos in the cycling of nitrogen species and nitrogen transformation in eutrophic freshwater sediments. In my thesis I have, employing 15N-isotope techniques in laboratory experiments, shown the importance of infaunal chironomid larvae and oligochaetes on denitrification in eutrophic lake sediments. READ MORE
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2. The sensitivity of Swedish alpine lakes to hydro-climatic changes during the Late Holocene
Abstract : The thesis objective is to use lake sediments to investigate the relationships between chironomids, as proxy for temperature, and δ18O and minerogenic in-wash, as precipitation proxies, in northern Sweden during the Late Holocene. Three lakes along a N–S transect in the Scandes were studied using biological, geochemical and physical sediment properties, together with numerical methods. READ MORE
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3. Sub-lethal Effects of Anthropogenic Contaminants on Aquatic Invertebrates
Abstract : Anthropogenic contaminants are considered to play a substantial role in the decline of freshwater invertebrate diversity. Sub-lethal effects of many of these contaminants on behaviour and life-history traits of aquatic invertebrates may contribute to their decline. READ MORE
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4. The effects of exposure to microplastics and pollutants on the arthropod microbiome
Abstract : Anthropogenic pollution is widespread across various ecosystems. This disturbance can alter the interaction between a host and its associated microbiome, with repercussions for hosts traits such as health, behavior, and host evolution. READ MORE
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5. Classes of DNA associated with telomeres in the chironomids C. pallidivittatus and C. tentans
Abstract : Telomeres in Chironomus consist of long complex tandem DNA repeats, which in C. pallidivittatus have been shown to extend to the extreme end of chromosomes. In C. pallidivittatus the telomeric repeats are present in large blocks, 50-200kb in size, most of them belonging to four major subfamilies. READ MORE