Essays about: "flower abundance"

Showing result 11 - 15 of 15 essays containing the words flower abundance.

  1. 11. Organic vs. conventional : comparative study on pollinating insects and their efficiency in white clover fields

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Szilvia Johansson; [2017]
    Keywords : pollinator; white clover; landscape complexity; abiotic; biotic factors; organic; conventional;

    Abstract : Agricultural intensification has altered our environment, and many natural habitats for living organisms have been altered or completely disappeared. To restore and conserve biological systems while keeping the food supplies on an acceptable level, there is a demand for organic practice in the agriculture sector. READ MORE

  3. 12. Effects of phenology and the microclimate on the seed set of Anemone nemorosa

    University essay from SLU/Dept. of Ecology

    Author : Laurent Risser; [2016]
    Keywords : interaction; plant-pollinator; microclimate; phenology;

    Abstract : Changing climate affects the dispersal and phenology of plants and pollinators. Particularly in the spring, climate warming accelerates the timing of flowering and insect emergence. Temporal mismatch is a fairly well studied biological phenomenon. READ MORE

  4. 13. Effects of flower abundance and colour on pan-trap catches

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Hilda-Linn Berglund; [2016]
    Keywords : Syrphidae; Apoidea; Bombus; Cetoniidae; Lepturinae; Trichius; pan-trap; hand-netting; flower colour; Blomflugor; bin; humlor; guldbaggar; blombockar; humlebaggar; färgskålar; håvning; blomfärger;

    Abstract : Pollinating insects are important for many plants and for the human population. To be able to monitor pollinators and assess improvements made for them, it is important to get information about pollinator population changes. Therefore, it is essential that the methods used to collect data are accurate (i.e. READ MORE

  5. 14. Effect of land-use history and site-specific environmental factors on solitary bees and flower beetles in clear-cuts of boreal coniferous forest

    University essay from Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

    Author : Victor Eriksson; [2015]
    Keywords : Abundance; Clear-cut age; Community organization; Early successional habitats; Lepturinae; Pan-traps; Pollinators; Species richness;

    Abstract : Land-use history has been recognized as an important factor in shaping biological communities in clear-cuts. Many solitary bees and flower beetles (Cerambycidae: Lepturinae) are commonly found in clear-cuts, which serve as early successional habitats. READ MORE

  6. 15. The importance of vegetation height and flower abundance for Swedish butterfly species in semi-natural grasslands

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi; Linköpings universitet/Tekniska högskolan

    Author : Zandra Löfqvist; [2014]
    Keywords : Vegetation height; flower abundance; nectar; Butterfly; Lepidoptera; Semi-natural grassland; monitoring; Sweden;

    Abstract : Changed management of semi-natural grasslands is thought to be one important factor for explaining the decline of butterfly populations in Sweden and the rest of Europe. This study explores how vegetation height, variation in vegetation height and flower abundance can help predict the occurrence of butterfly species in semi-natural grasslands in southern Sweden. READ MORE