Sökning: "Central place foraging"

Hittade 4 avhandlingar innehållade orden Central place foraging.

  1. 1. Ecological interactions in human modified landscapes : Landscape dependent remedies for the maintenance of biodiversity and ecosystem services

    Författare :Arvid Bolin; Biodiversitet; []
    Nyckelord :Central place foraging; Agriculture; Competition; Ecosystem service; Species coexistence; bumble bees; landscape ecology; Biodiversity; Agri-environment scheme; Central place foraging; jordbruk; konkurrens; landskaps ekologi; humlor; bin;

    Sammanfattning : Modern agricultural practices have led to an intensification of the agricultural landscape which has negatively affected both biodiversity and the ecosystem services it provides. In my thesis I have used ecological theory of optimal foraging to try and explain how landscape structure, landscape composition and agricultural management can explain the loss of biodiversity and how remedies can efficiently be implemented. LÄS MER

  2. 2. On Death in the Mesolithic : Or the Mortuary Practices of the Last Hunter-Gatherers of the South-Western Iberian Peninsula, 7th–6th Millennium BCE

    Författare :Rita Peyroteo Stjerna; Kjel Knutsson; Mariana Diniz; Liv Nilsson Stutz; Clive Bonsall; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; death; Late Mesolithic; hunter-gatherers; social memory; place; burial practices; mortuary ritual; historical process; south-western Iberian Peninsula; archaeothanatology; radiocarbon dating and Bayesian analysis; stable isotopes carbon and nitrogen ; shell middens; museum collections; Archaeology; Arkeologi;

    Sammanfattning : The history of death is entangled with the history of changing social values, meaning that a shift in attitudes to death will be consistent with changes in a society’s world view.Late Mesolithic shell middens in the Tagus and Sado valleys, Portugal, constitute some of the largest and earliest burial grounds known, arranged and maintained by people with a hunting, fishing, and foraging lifestyle, c 6000–5000 cal BCE. LÄS MER

  3. 3. Central place foraging in the wheatear Oenanthe oenanthe and the red-backed shrike Lanius collurio

    Författare :Allan Carlson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 4. Across landscapes and seascapes : The movement ecology of diving and flying guillemots and gulls during breeding

    Författare :Thomas J. Evans; Evolutionär ekologi; []
    Nyckelord :Uria aalge; Larus fuscus; Laridae; animal flight; foraging ecology; movement ecology; seabirds;

    Sammanfattning : Most seabirds breed colonially, at which time they make central-place foraging trips. Parents must collect food both for themselves and for egg production/chick-rearing. LÄS MER