Sökning: "provisioning behaviour"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden provisioning behaviour.

  1. 1. Behaviour and life-history responses to chick provisioning under risk of nest predation

    Författare :Sönke Eggers; David Winkler; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Chick provisioning; clutch size; delayed dispersal; nest concealment; nest predation; parental care; population decline; Perisoreus infaustus; Siberian jay; Biologi; Biology; Biologi; populationsbiologi; Population Biology;

    Sammanfattning : This thesis examines risk management in breeding Siberian jays (Perisoreus infaustus), which is indigenous to the northern taiga. Parent behaviour and the nest are cryptic. A new nest is built each year. It is placed on spruce or pine branches close to the trunk and well insulated with lichens, feathers and reindeer hair. LÄS MER

  3. 2. Seabirds as food for thought : An integrative study on seabird ecology and ecosystem services in changing marine systems

    Författare :Martina Kadin; Thorsten Blenckner; Morten Frederiksen; Olof Olsson; Johan Elmberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; seabirds; ecosystem services; social-ecological systems; marine systems; fisheries; foraging ecology; provisioning behaviour; common murre; common guillemot; Uria aalge; Stora Karlsö; Baltic Sea; naturresurshushållning; Natural Resources Management;

    Sammanfattning : The importance of the benefits that humans obtain from the oceans is increasingly recognized, along with the rapid decline in marine resources that threatens these benefits. Studying seabirds – top predators in marine ecosystems, can provide insights about multiple pressures and the state of the oceans. LÄS MER

  4. 3. Energy-efficient resource provisioning for cloud data centers

    Författare :Selome Kostentinos Tesfatsion; Johan Tordsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Energy efficiency has become a fundamental concern in data centers, raising issues to all energy-related costs, including capital costs, operating expenses, and environmental impact. Energy inefficiency is mainly caused by unoptimized use of energy by sub-components of these data centers. LÄS MER

  5. 4. Evolutionary Resolutions of Conflicts with Mates and Offspring

    Författare :Roger Härdling; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Clutch evolution; Arms race; Idothea baltica; Evolutionary conflicts; Sexual conflicts; Parent-offspring; Endosperm; Ecology; Ekologi;

    Sammanfattning : In sexual conflicts and conflicts between parents and offspring, natural selection acts in different directions on the two sides. For example, males may be selected to achieve many mates, but female fitness may be maximised by monogamy. In this thesis I study the evolutionary outcome of these situations mainly by theoretical modelling. LÄS MER

  7. 5. Organoleptic Interfaces: Exploring Embodied Methods in Foodscapes

    Författare :Anna Maria Orru; Chalmers tekniska högskola; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; urban-making; embodiment; artistic-based research; foodscapes; relational assemblages; deeper commitment to environment; performativity; imagineering; critical cartography; choreography; performativity;

    Sammanfattning : In the move to re-acquaint urban green and in-between spaces as solely parks and open spaces, this research looks to the concept of emerging foodscapes to form a transformative behaviour with food in the city. Urban population growth, unstable food security, environmental consequences of industrial food production are all motives for concern, alongside individual awareness of food provisioning, seasonal availability and behaviour. LÄS MER