Sökning: "Terrestrial ecology"

Visar resultat 6 - 10 av 211 avhandlingar innehållade orden Terrestrial ecology.

  1. 6. Community Assembly and Spatial Ecology of Saproxylic Coleoptera

    Författare :Jonas Victorsson; Mats Björklund; Stefan Ås; Anne Magurran; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Terrestrial ecology; Terrestisk ekologi; Animal Ecology; zooekologi;

    Sammanfattning : Community assembly is the process deciding inclusion/exclusion of species in a developing community. Spatial ecology integrates spatial habitat factors with local biotic interactions within a given patch. I used standardized tree bolts (0.35-1 m long) to sample saproxylic (wood living) beetles in natural and managed forest types. LÄS MER

  3. 7. On enchytraeids and naidids: Life history traits and responses to environmental stress

    Författare :Anna-Karin Augustsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; oligochaeta; terrestrial naididae; toxicity testing; asexual reproduction; sexual reproduction; drought; environmental stress; metal pollution; Ekologi; Animal ecology; Djurekologi;

    Sammanfattning : My thesis shows that enchytraeids and naidids are sensitive to various forms of environmental stress, which in combination with the wide distribution of both families make them highly suitable for use in risk assessment and soil monitoring. Enchytraeids were subject to chemical stress under both laboratory and field conditions. LÄS MER

  4. 8. Network Based Tools and Indicators for Landscape Ecological Assessments, Planning, and Design

    Författare :Andreas Zetterberg; Berit Balfors; Ulla Mörtberg; Jan Bengtsson; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Least-cost modeling; Functional connectivity; Environmental planning tool; Resilience; Spatial redundancy; Ecological integrity; Landscape Ecology; Graph Theory; Ecological Network Graphs; Biodiversity; Conservation Biology; Urban Planning; Regional Planning; EIA; SEA; Environmental Assessment; Ecological Indicator; Impact prediction; Habitat suitability; Species distribution; Urban ecology; GIS; Urbanization; Miljöbedömningsverktyg; Landskapsplanering; Resiliens; Ekologisk integritet; Landskapsekologi; Grafteori; Ekologiska nätverk; Biologisk mångfald; Bevarandebiologi; Urban planering; Regional planering; MKB; SMB; Miljöbedömning; Ekologisk indikator; Konsekvensbedömning; Habitatmodellering; GIS; Urbanisering; Nature conservation and landscape management; Natur- och landskapsvård; Environmental engineering; Miljöteknik; Terrestrial ecology; Terrestisk ekologi;

    Sammanfattning : Land use change constitutes a primary driving force in shaping social-ecological systems world wide, and its effects reach far beyond the directly impacted areas. Graph based landscape ecological tools have become established as a promising way to efficiently explore and analyze the complex, spatial systems dynamics of ecological networks in physical landscapes. LÄS MER

  5. 9. Behavioural ecology of Indo-Pacific bottlenose and humpback dolphins

    Författare :Eva Stensland; Per Berggren; Anders Angerbjörn; Elisabeth Slooten; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Behaviour; ecology; dolphins; Zanzibar; abundance; distribution; tourism; mixed-species groups; interspecific association; social interaction; swim-with-dolphin; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : Dolphins in East Africa face various threats, such as direct hunt, bycatch and habitat degradation. It is therefore important to undertake research that can facilitate necessary conservation and management actions to minimize these threats. LÄS MER

  7. 10. Plumage Colours and the Eye of the Beholder : The Ecology of Colour and its Perception in Birds

    Författare :Olle Håstad; Mats Björklund; Innes Cuthill; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; ultraviolet; colour vision; opsin; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : Virtually all diurnal birds have tetrachomatic vision based on four different colour receptors. As a result, birds are potentially able to perceive their environment in twice as many colours as humans and four times as many colours compared to most other mammals, which are dichromatic. LÄS MER