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Found 5 swedish dissertations matching the above criteria.

  2. 1. Bird Species in Urban and Agricultural Landscapes : Bird diversity patterns along an urbanisation gradient and crop damage caused by birds on the Deccan Plateau, India

    Author : Manoj Ashokrao Kale; Prosun Bhattacharya; Gabor L. Lövei; Peter Kjellander; KTH; []
    Keywords : Bird assemblage structure; Forest-urban gradient; Scale-sensitive diversity; Crop depredation; Crop damage assessment; Deccan Plateau; India.; Land and Water Resources Engineering; Mark- och vattenteknik;

    Abstract : The major human activities that have transformed the Earth include agriculture and urbanization. The present study was conducted to contribute to a description of the effect on birds of urbanization and agriculture in an Indian region. READ MORE

  4. 2. Interactions between leaf lesions and the phyllosphere microbiota in leafy vegetables

    Author : Emina Mulaosmanovic; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Leafy vegetables (baby leaves) are considered an important source and vector for transmission of foodborne pathogens to humans. Contamination can occur from farm to fork. Although ‘rare’, contamination events have a substantial impact on public health. READ MORE

  5. 3. Soil erosion in Tanzanian mountain areas : case studies of land degradation and recovery in relation to land use and physical land characteristics in the Uluguru and Usambara mountains, Tanzania

    Author : Lill Lundgren; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Thanks to favourable rainfall, soil and photosynthesis conditions, the highlands of Tanzania have a considerably higher potential for crop production than any other biogeographic region in the country. This has resulted in deforestation, high population densities, and overcultivation of the mountain slopes. READ MORE

  6. 4. Stopover Ecology of Mallards : Where, when and how to do what?

    Author : Daniel Bengtsson; Jonas Waldenström; W. Michael Eichholtz; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Age characters; body condition; departure decision; effects of influenza A virus; habitat selection; mallard; movement; Ottenby Bird Observatory; stopover ecology; weather; wild birds; Ecology; Ekologi;

    Abstract : The mallard (Anas platyrhynchos) is the most numerous and widespread duck in the northern hemisphere and a model species in ecology and harvest management. Migration is a crucial life stage for many birds and understanding the drivers of migration has important implications for conservation biology and assessment of animal population responses to global changes. READ MORE

  7. 5. The influence of climate on ozone risk for vegetation

    Author : Jenny Klingberg; Göteborgs universitet; []
    Keywords : local climate; topography; nocturnal temperature inversions; ozone spring peak; passive diffusion sampler; AOT40; stomatal ozone flux; stomatal conductance; phytotoxic ozone dose; EMEP; MATCH; RCA3; climate change;

    Abstract : Ground-level ozone (O3) is a harmful air pollutant causing reduced crop yield and quality, reduced forest growth and negative effects on human health in large parts of the world. O3 is generally seen as a regional scale air pollution problem, but O3 concentration ([O3]) variation on a smaller geographical scale can be considerable. READ MORE