Sökning: "Biologi"

Visar resultat 1 - 5 av 5466 avhandlingar innehållade ordet Biologi.

  1. 1. Deciduous tree occurrence and large herbivore browsing in multiscale perspectives

    Författare :Gunilla Cassing; Larry Greenberg; Christina Skarpe; Karlstads universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; aspen; rowan; sallow; GIS; browsing; landscape; forest management; Biology; Biologi;

    Sammanfattning : Aspen ( Populus tremula), rowan (Sorbus auquparia) and sallow (Salix caprea) are deciduous tree species of low economic value for forestry and contribute to biodiversity of boreal forests. The species are rare in managed forest landscapes, and severely browsed by moose. LÄS MER

  2. 2. Hitting the mark : studies of alterations in behaviour and fertility in ethinyl estradiol-exposed zebrafish and search related biomarkers

    Författare :Nasim Reyhanian Caspillo; Inger Porsch Hällström; Per-Erik Olsson; Håkan Olsén; Leif Norrgren; Örebro universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Endocrine disrupting compounds; 17α-ethinylestradiol; fertility; anxiety; behaviour; zebrafish; biomarkers; stress; Biology; Biologi;

    Sammanfattning : In this thesis, we have analysed the effects of EE2 on non-reproductive behaviours and fertility. We have showed that two doses of EE2 in male adult short-term exposures evokes opposite behaviours in the novel tank test. LÄS MER

  3. 3. Socioscientific argumentation : Aspects of content and structure

    Författare :Nina Christenson; Shu-Nu Chang Rundgren; Niklas Gericke; Gabriel Bladh; Jim Ryder; Karlstads universitet; []

    Sammanfattning : Socioscientific argumentation has shown to be a feasible educational framework for promoting citizenship and for cultivating scientific literacy. However, there are several aspects of this educational framework that have been shown to be problematic. LÄS MER

  4. 4. Student Sustainability Consciousness : Investigating Effects of Education for Sustainable Development in Sweden and Beyond

    Författare :Daniel Olsson; Niklas Gericke; Jelle Boeve-de Pauw; John Piccolo; Jan Činčera; Karlstads universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Education for sustainable development; effects; environmental and sustainability education; holism and pluralism; students; sustainability consciousness; Biology; Biologi;

    Sammanfattning : Environmental and sustainability education has been an important part of education worldwide for many years, aiming to foster pro-environmental behavior among young people. Education for sustainable development (ESD) and its teaching components holism (the approach to the content) and pluralism (the approach to teaching) has been launched as the educational approach to support this aim by empowering young people with action competence for a sustainable future. LÄS MER

  5. 5. Who ate whom? Paleoecology revealed through synchrotron microtomography of coprolites (fossil feces)

    Författare :Martin Qvarnström; Živilė Žigaitė; Grzegorz Niedźwiedzki; Per Ahlberg; Karen Chin; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; coprolites; paleoecology; synchrotron microtomography; taphonomy; Triassic; Biologi; Biology;

    Sammanfattning : Fossil droppings, known as coprolites, are being increasingly recognized as a valuable source of paleoecological information with special regard to diets, parasitism, and physiology of extinct taxa. Here, it is suggested that the excellent preservation and amount of inclusions in the coprolites (e.g. LÄS MER