Browsing Biologisk institutt ( -2012) by Title
Now showing items 160-179 of 287
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Although some mechanisms of habitat adaptation of conspecific populations have been recently elucidated, the evolution of female preference has rarely been addressed as a force driving habitat ...
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(Master thesis / Masteroppgave, 2007)Breeding habitat-choice in two closely related species of passerines, Great Tit (Parus major) and Blue Tit (Cyanistes caereleus) was studied to reveal if their habitat preferences primarily is a hereditary trait, or if ...
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Habitat Classification Based on Bottom Topography and its Predictability for Describing Polychaeta and Trait DistributionRestricted Access (Master thesis / Masteroppgave, 2011)There is an increasing demand for simple and cost-efficient methods for describing habitats, communities and distribution of organisms on the seabed for management, conservation and prediction of ecological patterns. To ...
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(Master thesis / Masteroppgave, 2007)The red deer (Cervus elaphus) are among the most important game species in Norway, with a tenfold increase in harvest over the last few decades. Despite its importance, information regarding red deer habitat selection is ...
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(Master thesis / Hovedoppgave, 2007)De to makrofyttene Zostera marina (ålegress) og Fucus serratus (sagtang) har glatte overflater og kan synes relativt like som substrat for mobil fauna. Sagtang danner et mer eller mindre kontinuerlig belte langs hele kysten, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The mating type loci that govern the mating process in fungi are thought to be influenced by negative frequency-dependent selection due to rare allele advantage. In this study we used a mating ...
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(Master thesis / Masteroppgave, 2007)Numerous scientific investigations have been undertaken to answer the question of Polynesian origins. Most archaeological and linguistic evidence and previous studies in population genetics suggested that Remote Oceania ...
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(Master thesis / Masteroppgave, 2012)Ticks are vectors for a number of infectious diseases, and an understanding of their ecology is valuable for minimising the risk of human and livestock infections. The aim of this study was to identify the previous hosts ...
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(Master thesis / Masteroppgave, 2007)Summary. This work arose from a collaborative project between the University of Western Cape and the University of Oslo, funded by the Research Council of Norway. The original project was set up to identify informative ...
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(Master thesis / Masteroppgave, 2012)Organochlorines can possibly cause toxic effects in birds. In this thesis, levels and relationships between health parameters, organochlorine contaminants (OCs) and body condition index (BCI) in black-legged kittiwakes and ...
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(Master thesis / Masteroppgave, 2008)Marine trepigget stingsild (Gasterosteus aculeatus) har kolonisert ulike ferskvannshabitat gjentatte ganger og denne koloniseringen har ført til ulikheter innen trekk som morfologi, atferd, fysiologi og livshistorie. Disse ...
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(Master thesis / Masteroppgave, 2006)Environmental estrogens may modulate the endocrine system through interactions with sex steroid-binding protein (SBP), and these processes may be a novel mechanism for endocrine disruption. The endogenous hormone 17â-estradiol ...
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(Master thesis / Masteroppgave, 2005)To test if dispersers use odour to discriminate between familiar and unfamiliar individuals male and female root voles (Microtus oeconomus) were given the opportunity to choose between one familiar and one unfamiliar test ...
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(Master thesis / Hovedoppgave, 2004)Recent advances in molecular genetic techniques have made it possible to genotype DNA extracts from non-invasive samples such as hair, faeces, and urine. Subsequent identification of individuals from such material has ...
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(Master thesis / Masteroppgave, 2012)Eelgrass (Zostera marina) meadows are a common feature in shallow waters along the Norwegian coast, where they provide a habitat for an infaunal community with a high biodiversity. A field experiment, comprised of two ...
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(Master thesis / Masteroppgave, 2009)
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(Master thesis / Masteroppgave, 2008)A new ecological scenario was established in the Oslofjord at beginning of this century, when alien macroalgal species like the invasive Japanese fucoid Sargassum muticum and the red algae Dasya baillouviana were observed ...
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(Master thesis / Masteroppgave, 2010)I denne oppgaven studeres døgnvandringsmønstre og fødebiologi hos nordlig lysprikkfisk (Benthosema glaciale) i Masfjorden (ca. 60052’N, 5024’E), vest i Norge. Hovedmålet var å dokumentere og analysere bakgrunnen for invers ...
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(Master thesis / Masteroppgave, 2009)Cyanobacteria produce a number of bioactive compounds, most of them are oligopeptides. Almost all are known from freshwater species. The aim of this study was to search for marine and brackish water species producing ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background During the last 15 years the internal transcribed spacer (ITS) of nuclear DNA has been used as a target for analyzing fungal diversity in environmental samples, and has recently been selected as ...